Answer:
I would say the best answer for this question would be A.
Explanation:
I chose this answer because factually, it does check out. Say, for example there is a clinical trial for a drug to treat a specific disease.
I can rule out B because obviously these doctors would not purposely infect the volunteer with this disease just to take a shot at curing them.
I ruled out C because if we were using this trial drug on a completely healthy person... how would we know that the drug can help/cure the disease in mind if the person never had the disease in the first place. C is simply absurd.
And finally, D is much like B and so I can rule it out as well for the same reason.
Answer: patients volunteer because they have a specific disease
Explanation:
Why do you think scientists use the word mutate to describe the genetic process shown in the video?
Answer:
to show how the genetics can instantly turn odd in shape or other traits or factors
Explanation:
Mutate means “to change into something else.” When a mutation occurs in a gene, it changes the way a gene expresses in an organism. Proteins are the products of gene expression. Therefore, a mutation in a gene may cause a change in the way proteins form.
I just got it right on plato
How do animals get nitrogen
A. They break down glucose molecules into nitrogen
B. They convert carbon to nitrogen during fixation
C. They eat plants and other animals
D. They breathe it in from the atmosphere
Answer:
A they break down glucose moleculws
Answer:
C. They eat plants and other animals
Explanation:
Nitrogen is very important for life on Earth. It is an essential nutrient for plants and animals, it is a major component of protein. Protein is neccessary for animals to grow, reproduce, and survive. Through the nitrogen cycle, it's atoms move between living things, dead things, the air, the soil, and water. Plants incorporate nitrogen from soil, and when they are eaten by animals, animals incorporate it too. Carnivores get it from their preys.
a vascular problem that affects many in “standing professions “is ?
Answer:
lung cancer?
Explanation:
Which of the following is the correct explanation for linked genes?
Answer:
genes that are located on the same chromosome are inherited together.
Explanation:
1)What is the name given to organisms that produce their own food?
A) autotrophs B)heterotrophs C)phototrophs
2)Which of these is the ultimate source of energy for all organisms on Earth?
A)autotroph
B)decomposers
C)the sun
3)Heterotrophs obtain chemical energy from
A)consuming other organisms
B)photosynthesis
C)decomposition
Pls I need help
Answer:
1. Autotrophs
2. The Sun
3. Consuming Other Organisms
Answer:
A)
autotrophs
C)
the Sun
A)
consuming other organisms
Explanation:
on usatestprep
please help me I need much help as needed thanks.) The dependent variable in this investigation is the (1) size of the test tube.) (2) time of digestion (3) amount of stomach fluid ) (4) amount of protein digested
(4) amount of protein digested
( I just need someone to double check it for me, and see if it's right. Please tell me if I should add anything ^^ )
Assignment: Ultrasound and Infrasound Research Exploration
Ultrasound and infrasound are categories of sound with different frequencies. These categories can be used for a variety of different purposes. For example, ultrasound is used to diagnose and treat injuries in the medical field. In this research assignment, you will look at the industrial applications of both categories of sound.
Your essay should address the following things:
- Define and describe in detail (and in your own words) ultrasound and infrasound.
- Describe how ultrasound and infrasound are used in specific industrial applications and provide detailed examples of both.
When conducting your research, remember to gather information from multiple sources. Start your research by defining ultrasound and infrasound. Then look for how ultrasound and infrasound are used in industrial applications.
~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
( My Definition of Ultrasound and Infrasound)
Ultrasound: An Ultrasound is a high-frequency sound wave. Its frequently used to analyze the fetus throughout pregnancy.
Infrasound: A Infrasound is a low-frequency sound wave. It's generally used toward long-distance communication. Various animals can detect infrasound.
( Description of how Ultrasound and Infrasound are used )
Ultrasound is regularly applied to medical cases in pregnancy. Or in some cases, it's simply used to examine your organs, vessels, and tissues without requiring an incision. Infrasound is regularly applied to long-distance communication. Humans remain incapable of hearing Infrasound although animals like whales, alligators, cuttlefish, elephants can.
Also if you could give me 5 sources I could use on my essay for Ultrasound and Infrasound, that would be great. ^^
Answer:
the definitions and descriptions are right.
i'm working on this assignment right now so I don't have a source for you ;(
Answer:
the definitions and descriptions are right.
i'm working on this assignment right now so I don't have a source for you
Explanation:
which is a function of nucleic acids
Answer:
Explanation:
Nucleic acids are important because they make up genetic information in living things. There are two types of nucleic acid and they are DNA and RNA. DNA is the basic instructions for living things. It is passed down from parent to offspring and is found in the nucleus of the cell.
This is a ____ crescent moon.
A) new
B) old
C) quarter
D) waxing
Answer: The answer is D) Waxing.
Explanation:
Answer:
D) Waxing
Explanation:
The trait for flower color in a plant has red and white alleles. The red color is the dominant trait. What is the phenotypic ratio for a cross between plants with red (Rr) flowers and red (Rr) flowers? (3 points) 4 red : 0 white 3 red : 1 white 2 red : 2 white 1 red : 1 white
Answer: I think three red and one white.
Hope this helps.
Explanation:
The phenotypic ratio for a cross between plants with red (Rr) flowers and red (Rr) flowers is 3 red:1 white.
What do you mean by Phenotype?The Phenotype may be defined as the appearance or manifestation of the desired characters.
In this question, both the parents are heterozygous for Red flowers, i.e. Rr ×Rr, the resultant offspring are RR, Rr, Rr (Red), and rr (white).
The Punnett square is given below to understand you more:
Therefore, the phenotypic ratio for a cross between plants with red (Rr) flowers and red (Rr) flowers is 3 red:1 white.
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Essential nutrients include all of the following
Essential nutrients, which the body can't make or can't make in sufficient quantity, include vitamins, minerals, protein, fats, carbohydrates, and water. All of these are vital for growth, development, and maintaining basic bodily functions.
Explanation:Essential nutrients are compounds that the body can't make or can't make in sufficient quantity. They include the following main types:
Vitamins: They are necessary for the normal growth and development of the body. Examples include vitamins A, C, D, E, K, and the B vitamins.Minerals: They are crucial for several body functions, such as building strong bones and teeth, maintaining a regular heartbeat, and producing hormones. Examples include calcium, phosphorus, potassium, sodium, and trace minerals like iron and zinc.Protein: They are the building blocks of life, essential to growth and repair in the body.Fats: They serve many functions, including helping to build cell membranes, and are a source of energy.Carbohydrates: They are the body's main source of energy.Water: It's needed for digestion, absorption, transportation, dissolving nutrients, elimination of waste products, and thermoregulation.Learn more about Essential Nutrients here:
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The correct option is 3.
Essential nutrients include vitamins, minerals, water, certain amino acids, and fatty acids, but not enzymes. Vitamins and minerals are micronutrients. Water, amino acids, and fatty acids are macronutrients.
Explanation:The essential nutrients that the human body requires include vitamins, minerals, water, certain amino acids, and essential fatty acids such as the omega-3 alpha-linolenic acid and the omega-6 linoleic acid. However, enzymes are not considered to be essential nutrients because they are synthesized by the body, rather than obtained from food or drink. Vitamins, which can function as coenzymes, and minerals, which can act as cofactors, are both considered micronutrients, along with some amino acids. Water as well as amino acids, and fatty acids, are macronutrients.
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The complete question is given below:
Essential nutrients include all of the following except:
vitaminsmineralsenzymeswaterWhich of the following is not an impact of wildfires?
a air pollution
b. erosion
C. water pollution
d. none of the above
Please select the best answer from the choices provided
Answer: none of the above answer is d
Explanation:
why is chlorophyll not able to capture the energy in green light
All plants have chlorophyll-a which blocks(reflects) green light and absorbs red and blue wavelengths. It seems like it would be more efficient for plants to absorb green light since energy is most powerful from the sun through green wavelengths. However, the chlorophyll-a in chloroplasts actually defend the plant from harmful damage of the TREMENDOUS amount of power from the sun transmitted in green wavelengths.
SO CHLOROPHYLL-A PROTECTS PLANTS FROM TOO MUCH ENERGY IN GREEN LIGHT.
Scientific reasoning requires a circular way of thinking based on gathering and evaluating evidence.
True or False? If false what words make this statement true.
Scientific reasoning does not require a circular way of thinking, but rather a linear and iterative approach known as the scientific method. This involves making observations, forming a hypothesis, conducting experiments, evaluating evidence, and refining or discarding the hypothesis based on the results. These steps are repeated as necessary until a satisfactory answer is found.
Explanation:The statement that 'scientific reasoning requires a circular way of thinking based on gathering and evaluating evidence' is False.
Scientific reasoning actually requires a linear and iterative way of thinking, known as the scientific method. This involves making observations, forming a hypothesis, conducting experiments, gathering and evaluating evidence, and refining or discarding the hypothesis based on the results. Steps in the process are repeated as necessary until a satisfactory answer or explanation is found.
For instance, a scientist studying the effects of a new drug might start by observing its effects on lab rats, forming a hypothesis on how it might affect humans, conduct experiments to collect data, and then analyze that data to make conclusions. If the data does not support the hypothesis, the scientist would then refine the hypothesis and repeat the process.
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What does it mean when a mineral has a definite chemical composition? Select 2 choices
Answer: Option (2) and (4)
Explanation: Minerals are the building blocks of rocks and they are comprised of a certain range of chemical substances whose variety of forms and their arrangements are in a preferred orientation.
They occur naturally and these chemical substances are in specific quantity, containing atoms of one or more element.
For example, gold and silver.
I WILL GIVE BRAINLIEST FOR FIRST ANSWER
Look at this picture of a trilobite. These animals were once present in the ocean but now they are completely extinct. What is a likely cause of trilobite extinction?
A. They failed to develop vestigial organs that would have helped them survive.
B. They were no longer able to acquire the necessary characteristics for survival in a changing environment.
C. Something changed to limit and finally abolish their success in this environment.
D. Something changed that brought these creatures onto land in a slightly different form.
Answer:
The answer is C
Explanation:
Something changed to limit and finally abolish their success in this environment.
The answer that is most likely true is B due to the over arching idea of the lovely natural selection
Which tide occurs during a full or new Moon and is characterized by an extra-high tide caused by the straight-line arrangement of the Sun, Moon, and Earth?
A. low
B. neap
C. spring
Answer:
c. spring. When the sun, moon, and Earth are in alignment (at the time of the new or full moon), the solar tide has an additive effect on the lunar tide, creating extra-high high tides, and very low, low tides—both commonly called spring tides.
The rock in the picture is rhyolite, an extrusive igneous rock. Based on its appearance, how would you classify this rock?
please and thanks!
Answer:
A. Felsic
Explanation:
The rock would be classified as a FELSIC rock based on its appearance.
To classify a rock based on its appearance, we would rely more on the features we can observe when we look at it. Some of the features are colour and mineral grains. We can also use its feel, cleavage, and some other physical properties.
Looking at the picture, the rock is light coloured. The mineral grains also have a fine texture because the mineral boundaries cannot easily be resolved by naked eyes.
A light coloured igneous rock is said to be FELSIC with a rich composition of silica and feldspars. Mafic igneous rocks are usually dark and have low silica contents.
From the texture of the mineral grains, we know the rock is an extrusive rock. It must have formed on the surface or very close to the surface. This implies that, the minerals could not grow into larger crystals. They cooled rapidly on encountering surface temperatures.
A rock of this type is a Rhyolite. The intrusive equivalent is granite. Granite differs from Rhyolite because they have large mineral crystals. They are both felsic.
In which location would be rate of soil erosion most likely be higher than the rate of soil formation? A. A river delta B. A steep slope C. A tropical area with moderate rainfall d. A temperature forest
Answer:
B. A steep slope
Explanation:
The rate of erosion is the highest on barren lands and on steep slopes. The steep slopes are much more easy to erode because the gravity is pulling downwards, and the angle of the slope is helping that a lot. Also, the steeper the slope is, the less vegetation there is, thus the soil usually is not protected from erosion. When there's rain, snow, stronger winds, they manage to pull down the soil with ease as there's nothing that is an obstacle to stop them. That results in gradual leveling up of the slope, constantly losing on height, and eventually being totally flattened.
Final answer:
The rate of soil erosion is likely to be higher than the rate of soil formation on a steep slope due to more runoff and less vegetation to hold the soil in place.
Explanation:
The location where the rate of soil erosion would most likely be higher than the rate of soil formation is B. A steep slope. This is because soil can only develop where surface materials remain in place and are not frequently moved away by processes such as mass wasting. Steep slopes usually have more soil erosion due to several factors: more runoff of rainwater, less water infiltration, and less vegetation to anchor the soil. This results in little or no soil as the formation cannot keep up with the erosion. Other locations like river deltas, tropical areas with moderate rainfall, and temperate forests have mechanisms that help in soil accumulation or experience a balance between soil formation and erosion.
Describe the differences in biodiversity between the tropical rainforest and the arctic tundra.
Answer:
Explanation:he differences between the forest and the tundra are the climates,animals and plants.The tundra's climate is very cold while the forest is warmer and the tundra receives little sunlight whereas the forest receive direct and constant sunlight.the animals living in the tundra includes the arctic fox,snowy owl,caribou,ermine and polar bear and some tropical forest animals are the howler monkeys,sloths,jaguars,parrots and toucans.there are only a few plants that grow in the tundra.Some of them are the arctic moss,arctic willow,bearberry and pasque flower.These are the differences between the tropical forest and the tundra.
The two most diverse biomes are the tropical rain forests and the tundra biome.
The following are the differences in biodiversity between the tropical rainforest and the arctic tundra:
• The arctic tundra is classified as the cold icy desert, while the tropical rainforest is the wet climate group.
• In the Arctic tundra, the plains do not support trees, however, one can witness some bushes here and there, while the tropical rainforests are lush green comprising all the major kinds of trees and vegetation.
• The prime difference in biodiversity in the tropical rainforests and the Arctic tundra is the warmer temperatures and more rainfall, which allows more species to survive. While the Arctic regions exhibit the least vegetation and life due to extreme weather conditions that are temperature below the freezing points.
• Some of the species found in the Arctic regions are arctic moss, polar bear, arctic fox, arctic willow, and arctic hare. While the tropical rainforests comprise tall trees and animals like anteaters, sloths, lemurs, and others.
Thus, there is a vast difference in the biodiversity of the tropical rain forests and the Arctic tundra.
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There are several problems with classifying organisms into six kingdoms of life. One problem is that _______ aren't well defined and are very diverse. In addition, any eukaryotes that don't fit into other kingdoms are placed in this kingdom.
Answer:
The given blank can be filled with protists.
Explanation:
The organisms or species coming under the kingdom Protists are mainly unicellular, however, they also do comprise certain kinds of multicellular species. As mentioned in the question, the eukaryotes, which do not snug in other kingdoms are kept in this kingdom. As a consequence, even the members of the kingdom Protists do not share much of the similarities, as it comprises diverse species.
Blood Type in Humans is an example of: A The fact that there can be more than two alleles for a trait in a species. B There are only two alleles for a trait. C Each individual can have more than two alleles for a trait.
Answer:
Im sorry if i late but the answer i believe is C. if i wrong let me know!
What are the products of cellular respiration in a living tissue culture when maintaining in a glucose solution with adequate oxygen
Answer:
The answer is
aerobic respiration and the products of that are Carbon Dioxide and Water.
Glucose and oxygen react to form ATP. Water and carbon dioxide are released in the form of byproducts.
What is cellular respiration?Cellular respiration is a sequence of chemical processes that break down glucose to generate Power, which can then be used as energy to power a variety of reactions all through the body.
Cellular respiration consists of three major steps: glycolysis, the citric acid cycle, and oxidative phosphorylation.
Cellular respiration is the process by which organisms (animals and plants) decompose sugar in the presence of oxygen in order to release energy in the form of ATP. As a byproduct of this process, carbon dioxide and water are produced.
Thus, during culture of living tissues, with glucose and adequate oxygen, the products of cellular respiration will be water and carbon dioxide.
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1. Ash from a volcanic eruption decreases the amount of available solar energy for a region. How will a decrease in available sunlight most likely affect ecosystems of this region?
1Points
A
Decomposer populations will increase, causing a decrease in consumer populations.
B
Decomposer populations will increase, causing an increase in consumer populations.
C
Producer populations will decrease, causing a decrease in consumer populations.
D
Producer populations will decrease, causing an increase in consumer populations.
2. A male pistol shrimp with protective eye tissue pockets mates with a female shrimp without protective eye tissue pockets. All of the offspring have eye tissue pockets. What is the most reasonable conclusion that can be made about the eye tissue pocket trait in pistol shrimp?
1Points
A
It is a recessive, autosomal trait.
B
It is a dominant, autosomal trait.
C
It is a trait that results from multiple alleles.
D
It is a trait that results from incomplete dominance.
3. A farmer observed that an increase in the nitrogen content of the soil in a field was followed by an increase in producer productivity. What does this observation most likely indicate about the relationship between nitrogen and the producers in the field?
1Points
A
Nitrogen was a biotic factor.
B
Nitrogen was a limiting factor.
C
Nitrogen became a surplus resource.
D
Nitrogen became a selection pressure.
Answer:
C
Explanation:
Volcanic eruption spews volcanic ash into the atmosphere that lingers and blocks out sunlight for months. This causes photoautotrophs to decrease in population numbers due to the inability to photosynthesize. This will negatively affect the heterotrophs that depend on the autotrophs for energy.
Answer:
B
Explanation:
There are usually dominant and recessive alleles. The dominant alleles mask the expression of the recessive allele. Therefore, whenever an offspring has a dominant allele of a gene, it will be expressed whether in homozygous or heterozygous form.
Answer:
B
Explanation:
A limiting factor is an element whose abundance affects the growth and distribution of a population of a species in an environment. In this case, increasing the levels of Nitrogen in the environment increases the population size and vice versa.
(Apex) perception falls to the ground and eventually ends up in the ocean. which of the following is the most direct way for the water to get from the soil to the ocean?
A. by the way thermohaline circulation within the aquifer
B.by way of a recharge zone with a low percolation rate
c. by way of closed watershed
D. by way of an watershed
Answer:
The answer is B. by way of an open watershed.
Explanation:
The most direct way for the water to get from the soil to the ocean is by way of a recharge zone with a low percolation rate.
What is the ocean?The ocean is the body of salt water that covers 70.8% of the water of the earth. The ocean water is interconnected to each other and different places have different names given.
Thus, the correct option is B.by way of a recharge zone with a low percolation rate.
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which type of molecule that can be found in living things lack carbon atom
water molecule is one of few molecule that lack carbon atom
h2o
Answer: Water
Explanation:
The most important component of living beings is water. The structure of the water molecules contains hydrogen and oxygen.
The molecules are arranged in such a way that hydrogen and oxygen molecules are bind together by hydrogen bonding.
The water molecules does not contains carbon atoms in it. It only has hydrogen and oxygen molecules.
It is found in all the living forms as it is very important for the survival of living organism.
Which of the following is a benefit of urban development?
A. Development of economic centers
B. Development on agriculture land
C. Decrease in biodiversity
D. Depletion of freshwater
A. Development of economic centers
Answer: A. Development of economic centres.
Explanation:
Urban development is associated with establishment of the economic centers which are the source of generation of money like buisness offices, and finance government offices which checks the allocation of money in the entire urban area.
Hello, hope u guys are having a good day! I need some help on this science! Thank you! Water cycle.
I'm in 6th grade
Which of these stages of the water cycle were you able to observe in your model?
What is the energy source in your model and what does it represent?
Did you observe evapotranspiration in your model?
If yes, where? If no, how could your have demonstrated it?
Where in your model does condensation occur more rapidly? How do u know?
Please guys, I have been stuck on this science portfolio for ever now, and I need help, I don't understand, I researched everything, my last choice is you guys! Thank you!
Answer:
https://scied.ucar.edu/activity/12597/print-all
Here's a site it might help, the question and answers are at the bottom
Explanation:
Evolution is a process by which species change over the years. Various views explaining how evolution takes place have been proposed by scientists across the decades. Though most of these theories have been discarded, those of two scientists have been supported by different segments of the scientific community.
Jean-Baptiste Lamarck proposed the theory of inheritance of acquired characteristics to explain the process of evolution. It suggests that an organism can change itself willfully and pass on the acquired characteristics to the next generation or its offspring. Individuals develop traits that are useful and discard others that are not according to a predefined plot. Lamarck combined these two thoughts in his theory and substantiated them by evidence. One piece of evidence cited by him was that of the giraffe’s long neck. He said that giraffes stretched their necks to reach leaves on branches of high trees, and this gradually lengthened their necks over time. This acquired trait of a long neck was inherited by their offspring, and thus all giraffes now have long necks.
If you were to debate Lamarck today about his theory, what core concept in biology would you rely on?
A) Organisms lacking favorable traits will become extinct.
B) Mutations do not result in beneficial genetic variation.
C) Traits cannot be chosen willfully, but are randomly inherited from our parents.
D) Environmental stresses cause organisms to change, regardless of their genetic make-up.
Answer:
C) traits cannot be chosen willfully, but are randomly inherited by our parents
Final answer:
To debate Lamarck, I'd argue that traits are inherited through genetic information and changes are due to random mutations and natural selection, not the inheritance of acquired traits. Current scientific consensus disproves Lamarck's ideas, which conflict with the random and non-purposeful nature of evolutionary change.
Explanation:
If I were to debate with Jean-Baptiste Lamarck today about his theory of evolution, the core concept in biology I would rely on is C) Traits cannot be chosen willfully, but are randomly inherited from our parents. Lamarck's idea that traits acquired during an organism's life can be passed on to its offspring has been largely discredited by modern genetics and the understanding of heredity mechanisms. Instead, traits are inherited through genetic information contained in the DNA, and changes in traits from generation to generation are often due to random mutations and the process of natural selection, not the inheritance of acquired characteristics.
Moreover, Lamarck's assertion that species evolve according to a predefined plot suggests a purposeful direction in evolution, which contradicts the random nature of mutations that drive evolution in the theory of natural selection. Current scientific consensus maintains that while the environment can affect how genes are expressed (epigenetics), the idea that physical changes acquired during an organism's lifetime can be directly inherited is incorrect. This foundational principle in evolutionary biology, demonstrated through extensive research and experimentation, would be the basis of my argument against Lamarck's hypothesis of the inheritance of acquired traits.
What domain and kingdom do all invertebrate animals belong to
Answer:
Domain: eukaryotic
Kingdom: Animal
Explanation:
The Animalia kingdom constitutes the group of eukaryotic, heterotrophic, multicellular and tissue organisms, characterized by their capacity for locomotion, their embryonic development and the absence of chlorophyll. Animalia is a kingdom comprised in the Eukaryota domain.
Taxonomically, eukaryotic, is the domain (or empire) to which the organisms formed by cells with a true nucleus belong.
Invertebrate animals belong to the Eukarya domain and the Animalia kingdom. They account for about 95 percent of Animalia species. The largest phylum within this group is Arthropoda, which makes up about 85 percent of all known species.
Explanation:All invertebrate animals belong to the domain Eukarya and the kingdom Animalia. Invertebrates, which include animals without a backbone, make up approximately 95 percent of all species in this kingdom. This group encompasses a diverse range of species from 32 different phyla, perhaps most notably the phylum Arthropoda, which comprises around 85 percent of all known species and is dominated by invertebrates like insects, spiders, and crustaceans.
The domain Eukarya is characterized by organisms that have cells with a nucleus and other membrane-bound organelles. The kingdom Animalia, within this domain, includes all eukaryotic, multicellular, heterotrophic organisms that ingest their food and often develop into motile creatures with a fixed body plan. Among the distinctive features of members of the animal kingdom are the presence of differentiated tissues such as nerve, muscle, and connective tissues.
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