Answer:
red-shift and cosmic microwave background (CMB) radiation). One of the main pieces of evidence for the big bang is the observed motion of galaxies: The light from distant galaxies is redshifted, which indicates that they are moving away from us.
Explanation:
The redshift of distant galaxies supports the Big Bang theory. This redshift indicates that galaxies are moving away from us, suggesting the universe is expanding as predicted by the Big Bang theory.
Explanation:One piece of evidence that supports the Big Bang theory is the redshift of distant galaxies. This redshift is caused by the Doppler Effect, which is a change in the frequency or wavelength of a wave in relation to an observer who is moving relative to the wave source. In the context of the Big Bang theory, the redshift observed in light from distant galaxies indicates that those galaxies are moving away from us and that the universe is expanding, with distances between galaxies increasing over time. This is consistent with the Big Bang's prediction of an expanding universe beginning from a very high density and high-temperature state.
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What is the reason given for holding off
on the new techniques for extracting the
oil?
Answer:
Many companies are afraid to switch to new forms of oil extraction because they can either cost more or don't see in fixing the "Unbroken"
Explanation:
Most of this comes from a deep seated hatred of change in the human mind but also poses an economic scare of whether or no said companies will still maintain their profit margins.
How can a change to the population of one species affect an entire ecosystem?
please help!!
Changes to the population of one species can have cascading effects on other populations and the overall functioning of an ecosystem.
Explanation:Changes in one species' population can impact the entire ecosystem. For example, if the population of a predator species decreases, it can lead to an increase in the population of its prey species. This can result in a decline in the prey species' food source and eventually a decrease in their population as well.
Additionally, changes in one species can also disrupt the balance of other species that rely on or interact with it in the ecosystem. For instance, if a species suddenly becomes dominant in an ecosystem, it can outcompete other species for resources such as food, water, and shelter, leading to the decline or even extinction of those species.
This can cause a ripple effect throughout the ecosystem, impacting the abundance and distribution of other organisms, as well as the functioning of various ecological processes.
Overall, the interconnectedness of species within an ecosystem means that changes in one population can have cascading effects on other populations, ultimately shaping the structure and functioning of the entire ecosystem.
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Science question about nucleotide base pairs and dna, fill in the spaces
Answer: a) deoxyribose sugar
b) guanine
c) adenine
d) phosphate group
Explanation: A DNA is a double stranded nucleic acid molecule. The building blocks of DNA are the nucleotides. A nucleotide is consists of deoxyribose sugar, a nitrogenous base and a phosphate group. The nitrogenous bases found in DNA are Adenine, Thymine, Cytosine and Guanine. In DNA base pairing, Adenine pairs with Thymine while Guanine pairs with Cytosine. The structure of a DNA double stranded helix is like a ladder in which the bases form the steps or rungs while the phosphate group and deoxyribose sugar form the phosphodeoxyribose backbone. Deoxyribose is a pentose, a sugar with five carbon atoms.
The two complementary base pairs in DNA are adenine (A) with thymine (T), and guanine (G) with cytosine (C), which are connected by hydrogen bonds and critical for passing genetic information during cell division.
Explanation:The two complementary base pairs of DNA are adenine (A) with thymine (T), and guanine (G) with cytosine (C). These base pairs form the ladder-like structure of the DNA molecule. Adenine and thymine are connected by two hydrogen bonds, while guanine and cytosine are connected by three hydrogen bonds. This pattern of base pairing ensures that the genetic information is accurately passed on during cell division (mitosis). The base pairs are stacked within the DNA double helix structure, which was proposed by Watson and Crick, and they are stabilised by hydrogen bonds in a specific arrangement where a purine (A or G) pairs with a pyrimidine (T or C), ensuring the uniform diameter of the helix.
Answer the research question and hypothesize about the results of the addition of this invasive species. A) Biodiversity will remain constant and although the existing top level consumers will be wiped out, they will be replaced by other species. B) The sea lamprey will work through the food web, top to bottom. The old web will collapse and there will be a drastic decrease in biodiversity. C) The consumers with the purple and blue bands will become extinct. The producers and herbivores will dominate the ecosystem. Biodiversity will decline. D) The top level consumers will disappear and biodiversity will decline, but because of the complexity of the food web, it will sustain itself over time.
Biodiversity will remain constant and although the existing top level consumers will be wiped out, they will be replaced by other species.
What is Biodiversity?The variety of animals, plants, fungi, and even microorganisms like bacteria that make up our natural environment are all included in what is known as biodiversity. These various species and critters collaborate in complicated web-like ecosystems to keep things in balance and support life.
We run the risk of disturbing the balance of ecosystems and losing biodiversity as humans put more and more strain on the world by utilizing and consuming more resources than ever before.
According to the WWF's 2022 Living Planet Report, since 1970, the number of mammals, fish, birds, reptiles, and amphibians has decreased globally on average by 69%.
Therefore, Biodiversity will remain constant and although the existing top level consumers will be wiped out, they will be replaced by other species.
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what is the source of food for germinating seed?
Answer:
The three primary parts of a seed are the embryo, endosperm, and seed coat. The embryo is the young multicellular organism before it emerges from the seed. The endosperm is a source of stored food, consisting primarily of starches
Explanation:
Describe how plants, wind, and ice can
cause physical weathering.
Answer:
Explanation:
Physical weathering, also known as mechanical weather, is the process of rocks and minerals on Earth's surface breaking down or dissolving as a result of water, ice, salt, plants, animals or changes in temperature. Physical weathering does not change the chemical composition of the rock, just cracks and crumbles it into smaller pieces. After a rock has weathered, erosion occurs, transporting bits and pieces away. Finally a deposition process deposits the rock particles in a new place.
Physical weathering by plants, wind, and ice rock fragments to their new location. Water flowing quickly Ice wedges numerous rocks break as a result of ice plant roots can spread.
What is physical weathering?Physical weathering, often referred to as mechanical weathering, is the breakdown or dissolution of rocks and minerals on Earth's surface as a result of water, ice, salt, plants, animals, or temperature changes.
The granite just splits and crumbles into smaller pieces as a result of physical weathering, which does not alter the chemical makeup of the rock.
Erosion happens after a rock has weathered, carrying parts and pieces away.
Therefore physical weathering is caused by numerous rocks breaking as a result of ice wedging developing roots. In fissures, plant roots can spread.
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Where do the Sun's rays hit Earth's surface nearly at right angles?
Arctic Circle
Tropic of Cancer
equator
Tropic of Capricorn
Antarctic Circle
What distance was used to define the astronomical unit (AU)?
A) the average distance across the sun, its diameter
B) the average distance from the sun to Mercury, the closest planet
C) the average distance from the sun to Earth, our home planet
D) the average distance from the sun to Neptune, the farthest planet
The average distance from the sun to Earth
Explanation:
Astronomical unit is defined as the the average distance from the center of the earth to the center of the sun.It is represented by AU.The value is equal to a unit of measurement of 149.6 million kilometers. An Astronomical Unit is approximately equal to 93 million miles (150 million km). It's approximately 8 light-minutes.Astronomical units are usually used to measure distances in solar system.Hybridization _____.
occurs frequently in nature
is the process of gene combination in a lab
usually produces offspring that cannot reproduce
creates genetically identical offspring
Answer:
The correct answer is: c) usually produces offspring that cannot reproduce.
Explanation:
Hybridization, also knowns as selective breeding, is an artificial process that involves selecting parents with specific characteristics in order to obtain an offspring with the same traits.
Hybridization is very common and has been performed by humans for thousands of years: from selective breeding crop plants, to do so with dogs in order to create more desirable breeds.
Option A is incorrect because hybridation does not occur in nature, it is an artificial process.
Option B is incorrect because hybridation often happens when the selected parents are chosen to reproduce (by a human).
Option D is correct because an important amount of hybrids are sterile (for example: mules).
Option D is incorrect as well because the offspring is not identical: it shares a combination of genes from both parents.
Answer:
usually produces offspring that cannot reproduce
Explanation:
Hybridization is the process of crossing two organisms usually of different species, genus or families but of desirable characters to produce organisms known as hybrids.
Hybrid organisms combine the characteristics of both parents and because of the difference in genetic composition of the parents, they are often sterile and hence, cannot reproduce.
Therefore, hybridization usually produces offspring that cannot reproduce.
4. One example of a carbohydrate that stores
energy is sc.6.L.14.2
A.fat
B.Hair
C.keratin
D.sugar
Answer:
The answer to your question is D, Sugar
Final answer:
The correct option for a carbohydrate that stores energy is D. sugar, which includes glycogen, a polysaccharide used by animals for short-term energy storage.
Explanation:
Carbohydrates are fundamental biological molecules that serve various roles, including energy storage. An essential simple sugar, glucose, shows the compact and immediate energy supply carbohydrates can provide. However, for longer-term storage, animals use a polysaccharide known as glycogen. Glycogen is made from hundreds or thousands of glucose units and is particularly abundant in liver and muscle cells. It serves as an energy reserve and is utilized when the body is fasting to maintain metabolic balance. Unlike fats or proteins, glycogen can supply the energy quickly due to its more accessible structure for enzymatic breakdown. This is why glycogen is a primary form of energy storage in animals.
The correct option from the list provided that is an example of a carbohydrate that stores energy is D. sugar. The sugars, specifically in the form of glycogen, are utilized by our bodies for short-term energy storage. This is in contrast to fats, which serve as long-term energy reserves but are not carbohydrates.
A group of the same kind of organisms living in an ecosystem is called a
Answer:
Population
Explanation:
A population is a group of living organisms of the same kind living in the same place at the same time. All of the plant and animal populations living in a habitat interact and form a community. The community of living (biotic) things interacts with the nonliving (abiotic) world around it to form the ecosystem.
We can see here that a group of the same kind of organisms living in an ecosystem is called a population.
What is ecosystem ?An ecosystem is a complex community of living organisms (biotic components) interacting with each other and their physical environment (abiotic components) within a specific geographic area. It encompasses all the organisms, their physical surroundings, and the ecological processes that occur within that particular system.
Ecosystems can vary greatly in size and scope, ranging from small microcosms, such as a pond or a forest, to vast biomes, such as a tropical rainforest or a coral reef. They can exist in terrestrial (land-based) or aquatic (water-based) environments.
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These moth wings shown in the image below are all the same species.
The difference between their wings is an example
A.) Autotrophs
B.) Natural Selection
C.) Extinction
D.) Variation (traits)
Answer:
D) Variation
Explanation:
take a look at the moths, they each have something different and unique about them. Please give brainliest, i really need it thanks buckaroo :P
The correct answer is variation(traits).
What traits do moths have?
Compared with butterflies, moths have stouter bodies and duller colouring. Moths also have distinctive feathery or thick antennae.
What types of wings do moths have?
In moths, males frequently have more feathery antennae than females, for detecting the female pheromones at a distance. There are two pairs of membranous wings.
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ITEM BANK: Move to Bottom
Dominant Allele
1
Heterozygous Red
Homozygous Red
Homozygous White
Monohybrid cross
Recessive Allele
drag and drop answer here
drag and drop answer hete
drag and drop answer here
drag and drop answer here
RR
Rr
drag and drop answer here
Rr
Heterozygous Red- Rr
Homozygous Red-- RR
Homozygous white-- rr
Monohybrid cross- Rr
Recessive allele- homozygous white i.e rr
Explanation:
Heterozygous have 2 different alleles of a gene as both Red and white alleles are present in the example Rr.
Homozygous: If the 2 alleles at a locus is same then they are homozygous, it can be dominant as RR or recessive as rr.
Recessive gene are the ones that can be masked by the dominant genes as red is dominant on white.
Monohybrid cross is the result of cross between the individual having either homologous dominant or recessive genes or genotype. The result is generally masking the recessive allele resulting in dominant phenotypic trait but the genotype changes.
From the example given in question:
A cross between dominant red as RR
and a cross between recessive white as rr
The punnet square shows:
r r
R Rr Rr
R Rr Rr
it can be seen that all progeny are red but genotype changed to heterozygous red as Rr
What causes a rainbow?
A. Raindrops act like prisms and separate light into the spectrum.
B. The upper atmosphere acts like a prism and separates light into the spectrum. C. Clouds act like prisms and separate light into the spectrum.
Answer:
Option A.
Explanation:
Essentially, the cause of a rainbow is the reflection of sunlight through individual drops of water. Light enters the water and reflects from the opposite side of the water drop, bouncing back through the point of entry. Because the angle or refraction of the light changes as it bounces back.
Answer:
rainbow is a meteorological phenomenon that is caused by reflection, refraction and dispersion of light in water droplets resulting in a spectrum of light appearing in the sky. A
Explanation:
How are bacteria similar to fungi? How are fungi similar to animals?
Answer:
Bacteria is similar to fungi because the way fungi is made up us from bacteria. Fungi is similar to animals because fungi can be found on underwater animals.
What will happen when the global carrying capacity for humans is reached?
A) animals will go extinct
B) humans will go extinct
C) humans will not continue reproducing
D) human population will shrink
Answer:
I do think that it is B, but i'm not very sure.
Explanation:
Answer:
c i think
Explanation:
This is an issue related to an individual or a relationship that can potentially cause concern or conflict.
Answer:
Personal Issue is an issue related to an individual or a relationship that can potentially cause concern or conflict.
Which of the following plants most likely grew in the dark?
Write two examples of conclusions Mendel reached about inherited traits after completing his experiments with pea plants.
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Final answer:
Mendel reached two conclusions about inherited traits: the Law of Segregation and the Law of Independent Assortment.
Explanation:
Mendel reached two conclusions about inherited traits after completing his experiments with pea plants:
Law of Segregation: Mendel observed that the two alleles for each trait separate during the formation of sex cells. This means that each parent contributes one allele for a specific trait to their offspring. For example, when a plant with yellow smooth peas is crossed with a plant with green wrinkled peas, the resulting offspring will inherit one allele for pea color (either yellow or green) and one allele for pea texture (either smooth or wrinkled).
Law of Independent Assortment: Mendel found that the inheritance of one trait is not influenced by the inheritance of another trait. For instance, the alleles that code for different traits, such as pea color and pea shape, sort independently during meiosis. This means that the expression of one trait does not affect the expression of another trait in the offspring.
Some technologies have a number of negative effects. Witch is a negative outcome of the technology of vertical farming
"Potential unemployment" is a negative outcome of the technology of vertical farming.
Explanation:
Vertical farming is an activity where food is produced on vertically oriented surfaces. Rather than single-level farming of vegetables as well as other crops, such as in a field or greenhouse, this approach generates food in vertically stacked structures that are typically built into other structures such as a skyscraper, shipping container or repurposed store.
Disadvantages are like
Building may be very costly, and economic impact assessments have not yet been undertaken.It would be quite difficult and costly to paint. That would require higher costs of labor. It depends too much on technology and would devastate one day of loss of power.T/F: The ear is responsible for special senses
Answer: True
Explanation: The answer is true, I believe. Small hairs located in your ear are responsible for balance. When you move, these movements cause the hairs to bend.
Which of the following is considered a vestigial structure in humans?
-tail bone
-big toes
-spleen
-gall bladder
The tailbone is considered a vestigial structure in humans. The spleen and gallbladder are not considered vestigial as they have important functions.
Explanation:The tailbone is considered a vestigial structure in humans. It is the remnant of a tail that our ancestors had. While it does not serve any known function in humans, it provides attachment for certain muscles and ligaments.
The spleen is not considered vestigial because it plays important roles in the immune system, blood circulation, and storage of red blood cells.
The gallbladder is also not considered vestigial. It is a small organ that stores bile produced by the liver, which aids in the digestion of fats.
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During your summer internship at a laboratory, you are given the opportunity to view a chimpanzee zygote under a microscope. You see that it has 48 chromosomes. How many chromosomes would you expect to find in a chimpanzee’s egg cell?
Answer:
If the chimpanzee’s zygote has 48 chromosomes, one would expect to find 24 chromosomes in a chimpanzee’s egg.
Explanation:
In a living organism, somatic cells are diploid and possess the full chromosome load, while gametes -sex cells- possess half of the total chromosomes, they are haploid.
The zygote of any organism that reproduces sexually results from the union of a male gamete and a female gamete, so its chromosome load is complete.
This means that if the chimpanzee has 48 chromosomes in its cells, the female sex cell - the egg - has 24 chromosomes.
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Why do we find probability of deviation in biology ? And when can the null hypothesis be accepted
Answer: probability is used to predict the chance that an event is likely to occur at a particular chosen level of significance.
Null hypothesis is accepted in biology when the p value is less than 1%, statistically, when the value of p<0.01
Explanation:
Determing the significance level is decided by the researcher, often times, scientists commonly use the 0.05, 0.01, or 0.001 probability levels as cut-off values. For instance, in the example experiment, you used the 1% probability. Thus, P ≥ 0.01 can be interpreted to mean that chance likely caused the deviation between the observed and the expected values (i.e. there is a greater than 1% probability that chance explains the data).
If instead we had observed that P ≤ 0.01, this would mean that there is less than a 1% probability that our data can be explained by chance. There is a significant difference between our expected and observed results, so the deviation must be caused by something other than chance.
Explain why each chromosome must become two strands before the cell divides.
Answer:
To allow transcription enzymes to access the DNA strand
Explanation:
The DNA double helix is made up of two complementary strands wound around each other, and tightly packaged as chromosomes.
DNA and RNA polymerases promote either DNA or RNA synthesis by attaching free nucleases to parent strands (a), which are then unwound and isolated by helicases (b). DNApolys synthesize DNA in a 5'-3 ' direction; owing to its restricted flow, there are only two types of replication: continuous from the point of differentiation of chromosomes, fork, and discontinuous from the fork.
Answer choices:
a
inversion
b
duplication
c
translocation
d
deletion
Answer: Option A) Translocation
Explanation:
Translocation is the transfer of a chromosomal segment to another. Hence, it results in an interchange of genetic parts among chromosomes that are not similar (part of chromosome labelled 4 was translocated to the chromosome labelled 18)
why would it be important to also clean your cell phone
Answer:
so it won't get dirty
Explanation:
you don't want the Corona virus do you?
The Alligator and the Python are competing for top predator. What affect can the introduction of a non-native species have on an ecosystem?
Answer:
If a non native species got introduced then it would hurt the animals already there because there is no animals that are hunting it down. Also it would cause a imbalance in the food chain which can cause so animals to become extinct. If the animal is left unchecked then that animal can become the best in the food chain because nobody can get rid of it.
Explanation:
Use the diagram to identify the parts of the nervous system. Label A is pointing to the nervous system. Label B is pointing to the nervous system.
Answer:
Label A is pointing to the peripheral nervous system.
Label B is pointing to the central nervous system.
Explanation:
The nervous system is split into two parts: the central nervous system and the peripheral nervous system.
The central nervous system (CNS) processes and coordinates information in the body. It consists of the brain and spinal cord. The brain is responsible for sensory processing and decision making; it then sends messages down the spinal cord, which transmits these messages to the rest of the body.
The peripheral nervous system (PNS) refers to the rest of the body. It transmits information to and from the CNS. It is responsible for sensory input and movement (though motor control comes from the CNS). The PNS is further divided into two systems: the somatic system, which controls volutary movements and sensory information, and the autonomic system, which regulates involuntary functions.
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why do developing nations favor the construction of high dams
Answer: Small dams can be a sustainable and economic source of electricity, especially in rural areas. ... Because dams lead people to believe that floods are controlled, they lead to increased development of floodplains. When a large flood does come, damages caused are often greater than they would have been without the dam.
Explanation:
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