Answer:
A
Explanation:
Im not 10p%sure but the chloroplast should be correct
A magnifying glass is an example of whikh type of microscope?
electron microscope
scanning microscope
compound light microscope
simple microscope
Mark this and return
Answer:
C) Compound Light Microscope
Which of the following would be considered a source of error in an Experiment
Answer:
only three house flies were collected for an experiment
Explanation:
i just did it :)
A brown coat is recessive in Labradors, while a black coat is dominant. If two hybrids are bred, what percentage of the offspring will have black coats?
A. 25%
B. 50%
C. 75%
D. 100%
Which statement is an example of mutualism?
O
A.
Bees sting other organisms when they sense danger.
B.
Bees pollinate flowers while obtaining nectar.
C.
Bees have black and yellow stripes that warn other organisms of danger.
OD.
Bees help maintain an ecosystem's native cacti species through pollination.
Reset
Next
ES
Mutualism is a relationship where both parties are benefited
B. Bees pollinate flowers while obtaining nectar.
The bees get nectar and the flowers get pollinated
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~Just a girl in love with Shawn Mendes
How do scientists collect data?
Answer:
Ask a questionCreate a hypothesisConduct an experiment and gather evidenceAnalyze the evidenceDoes it work/fit? (If not, go back to step 2)Communicate with others to see if the accept your idea. (If not, go back to step 2) Proteins, which are compounds made of nitrogen-rich amino acids, create waste products in the body of animals that must be eliminated. Which toxic compound is the primary concern of animal waste systems?
A. Urea
B. Ammonia
C. Ammonium
D. Nitrogen
Answer:
Ammonia is the most toxic waste. Urea is the least
What is hemoglobin in the blood?
Answer:
Hemoglobin is a protein contained in the red blood cells which transports oxygen to the tissues and body organs and carries carbon dioxide from the body organs and tissues back to the lungs.
Explanation:
Hemoglobin is a protein contained in the red blood cells which transports oxygen to the tissues and body organs and carries carbon dioxide from the body organs and tissues back to the lungs.
How did Alexander Fleming’s research solve a societal problem?
He developed ways to treat inherited diseases.
He advocated for regular hand washing to kill germs.
He discovered a new type of medicine that could treat infections.
He discovered the cause of mad cow disease, an emerging disease.
Answer:
The correct answer is the third statement.
Explanation:
Alexander Fleming was a Scottish biologist, pharmacologist, and botanist. He discovered Penicillin by accident in 1928. While performing research for determining the characteristics of staphylococci, he stacked all the research jars containing staphylococci in the corner of his lab and went to enjoy the holiday with his family.
After coming back, he witnessed that some of the jars had fungus surrounding them and the majority of staphylococci got eradicated. This marked the discovery of penicillin. It was a novel kind of medicine, which exhibited a tendency to treat infections. Thus, it can be concluded that he discovered a novel kind of medicine, which could treat infections.
Answer:
C
Explanation:
What would most likely happen if green plants were exposed to longer days of sunlight?
A. The mitochondria would produce less energy .
B. The chloroplasts would produce more energy.
C. The cell wall would become thicker.
D. The vacuoles would quickly shrink.
Answer: B. The chloroplasts would produce more energy.
how can mutation in a gene lead to a new trait in an organism ?
Answer: D. The mutated gene codes for a protein that causes a new trait
Explanation:
A mutation is a change in the DNA sequence that can occur from multiple causes. For example, by errors during replication or by the action of mutagens such as UV radiation, among others. When a mutation occurs, if not repaired, it can lead to the production of a different protein. This is because genes code for amino acids, which bonded together form proteins. A change in a DNA gene base can lead to code for a different amino acid (or even adding a new one or causing another to be lost). This alteration can lead to the synthesis of another protein involved in the expression of a trait, and giving rise to a different characteristic, which can be beneficial or harmful.
Hibernation enables an animal to save _____. range energy time space
Answer:
Energy
Explanation:
Hibernation allows an animal to save energy during a time in which there is not a large food source.
This generally occurs to carnivorous as well as omnivores in which their prey is "dead" during the time, or have migrated.
An example of an animal that hibernates during the winter is the Grizzly Bear, who generally eats to full before they hibernate for the winter.
~
Answer:
energy
Explanation:
Which statement accurately describes reproduction in animals
All animals can reproduce asexually, and some can reproduce sexually
All animals can reproduce sexually, and some can reproduce asexually
Animals only reproduce sexually
Animals only reproduce asexually.
Answer:
B
Explanation:
it just is trusttttttt
Animals can use both sexual as well asexual means for their reproduction. Some animals reproduce asexually through budding while others can reproduce through both sexual as well as asexual modes. Higher animals reproduce through the sexual mode of reproduction. So the correct answer is Option B.
Which animals reproduce asexually?Oligochaetes, planarians, sea stars, starfish, sharks, Crayfish, wasps, snakes like pythons, etc. are some of the animals that reproduce asexually. In the asexual mode of reproduction fusion of gametes does not occur and there is no change in the number of chromosomes of an individual. The same set of genes is passed on from the parent to the offspring and the newly formed offspring is an identical copy of its parent.
Some animals show an alteration between the sexual and asexual modes of reproduction. This is known as heterogamy. Examples of heterogamy include insects and rotifer.
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HELP ASAP!!!!Question 44 is an open-response question. Wild red 6 poin
wolves were once common in the southeastern United
States. As this area became more developed, the number
of wild red wolves was drastically reduced to about 20
individuals by 1967. These remaining wolves were
captured and bred. In 1987, some captive-born red wolves
were released into an area of North Carolina. Today, there
are more than 50 wild red wolves living in North Carolina.
a. Identify two ways development in the southeastern
United States most likely contributed to the decline of the
red wolf population. Explain each of your answers. b.
Compare the red wolf's genetic diversity before the
southeastern United States became more developed to the
red wolf's genetic diversity in 1967. Explain your answer. c.
Describe one other action, besides capturing and breeding,
that could increase the number of red wolves in the
southeastern United States. Explain how this action could
increase the number of red wolves.
a. The development of the southeastern part of the United States affected many species of animals, including the red wolves. The red wolves were seen as a species that is not useful and not wanted, and on top of that dangerous. Apart from the fact that the development led to destruction of the habitat of the wolves, so lot of them died out because of loss of habitat, the hunting played an even bigger role. As there were more and more people, and the encounters were becoming more often, and the wolves also had less food and started to attack the domestic animals, the hunters got activated and they almost killed the wolves to extinction, with only 20 individuals left.
b. Before the development of the southeastern apart of the United States, the red wolves were in relatively large number. This also meant that the genetic diversity was much greater among the red wolf population, resulting in healthy, stable, and strong population of this predator. When the situation came that only 20 individuals were left, then the genetic diversity shrinking to a very low level. Those 20 wolves did not had any other choice then to breed between each other, so in only couple of generations the genetic diversity become extremely low. That is very dangerous for a population, as if some of the individuals have some bad mutation or disease carrying with them, they can affect all the rest and the population may die out easily.
c. Apart from the capturing and breeding of the red wolves, the other method to increase their population is to reintroduce them into the areas where they once lived, under condition that it is a protected area. By reintroducing enough individuals so that the population can reproduce in a healthy manner, the red wolves population can easily and quickly reestablish itself in a natural manner, also contributing to restoring the natural order in their former habitat.
Consider the following hypothesis:
Soil type affects the germination of radish seeds.
Which of these should the experiment do in order to best test this hypothesis?
A.
Measure the rate at which radish plants grow after their seeds germinate
B.
Measure the average depth at which germinating radish seeds were planted
C.
Compare the percentages of radish seeds that germinate in different types of soil
D.
Compare the average numbers of radish seeds that germinate in different states
Answer:
C
Explanation:
You are testing the affects of different soils on the germination of seeds, therefore, you must compare different types of soil. The other answers don't have correlation to different types of soils, and are incorrect.
Answer: C. Compare the percentages of radish seeds that germinate in different types of soil
Explanation:
The hypothesis you are trying to prove is that the soil type affects the germination of radish seeds, to do this you would need to compare the germination rates of radish seeds in different soil types to see if there is an actual difference on the germination rates of the seed.
Creating new things to solve problems and improve life depends on the close interaction of which two fields?
A.science and technology
B.engineering and geology
C.conservation and research
D.medicine and surgery
Answer: A.science and technology
Explanation:
Science and technology is the correct option. Science include the knowledge of the natural processes and events that occur in the universe. It includes the predictions and explanations for the cause of natural processes. The technology include the collection or group of techniques and methods can be used for the synthesis of goods and services. The technology can be used for the accomplishment of objectives and for the purpose of scientific investigations.
The knowledge of science can be used and implemented to develop the technology. The technology can be used for the synthesis of new things and solving the problems associated with the daily life.
which will form an ionic bond?
A. A positive ion and a negative ion
B. Two positive ions
c. Any two atoms
D. Two carbon atoms
NEN
Answer:
A. A positive ion and a negative ion
Explain why autonomous underwater explorers (AUE) will provide entirely new kinds of information about ocean processes
Answer:
Oceanographers are already very skilled at gathering information about large-scale ocean processes, but small-scale processes have largely been inaccessible. ... They allow the deep ocean to be explored.
Answer:
Explain why autonomous underwater explorers (AUEs) will provide entirely new kinds of information about ocean processes.
The AUEs will allow scientists to gather information about local and small-scale processes for the first time to study ocean phenomena in greater detail.
Explanation:
Ocean Exploration
Edge 2020
Illegal fishing is thought to account for what percent of fish caught?
A. 10-20
B. 15-40
C. 20-50
D. 50-70
Thank you!
Illegal fishing accounts for a substantial portion of global fish catches, likely falling within the range of 15-40% based on studies and reports on under-reporting and the proportion of illegally caught seafood entering the United States.
Illegal fishing is a significant problem that affects marine ecosystems and economies around the world. According to research, the percentage of fish caught through illegal, unreported, and undocumented (IUU) fishing is substantial, contributing to over-exploitation and depletion of fish stocks. Considering the report by Agnew et al. in 2009 and the data on the under-reporting of global marine fish catches, it is reasonable to deduce that the percentage of fish caught through illegal means could be on the higher end of the provided options.
Additionally, taking into account that 25-30% of wild-caught seafood imported into the United States is illegally caught, as stated by Pramod et al. in 2014, and the significant under-reporting by as much as 50%, the range of illegal catch is likely considerable. Hence, the answer to the question of what percent of fish caught are due to illegal fishing is option B. 15-40%.
In humans, freckles (F) on the skin are dominant to no freckles (f). If two parents are heterozygous for the trait, which statement below best describes their chances of having a child with no freckles?
a
It would be extremely rare for the freckled parents to have a child without freckles because freckles are dominant.
b
The parents will most likely have three children with freckles before having a child without freckles.
c
Every time they reproduce, the parents have a one in four chance of having a child without freckles.
d
If the parents already have three children with freckles, then they are more likely to have a child without freckles.
Answer:
It might be C but sorry if I'm wrong
Two heterozygous parents for the dominant freckle trait (Ff) have a one in four chance of having a child with no freckles (ff) using a Punnett square to determine the probabilities.
Explanation:When considering whether two heterozygous parents can have a child with no freckles, we utilize a Punnett square to determine the possible genetic outcomes. Since freckles (F) are dominant over no freckles (f), a heterozygous individual will have one of each allele (Ff). When these parents have children, each parent has a 50% chance of passing on either the F or f allele.
Using a Punnett square to illustrate this, we would see that there are four possible genetic combinations for their child:
FF - Child with frecklesFf - Child with freckles (heterozygous like the parents)fF - Child with freckles (heterozygous like the parents)ff - Child with no frecklesThus, the correct answer is that every time they reproduce, the parents have a one in four chance of having a child without freckles (option c). This is because the chance for each genotype (FF, Ff, fF, or ff) is equal when both parents are heterozygous (Ff).
When the landmasses of the British Isles and Scandinavia are fitted together, mountain chains and rock types _____. form a nearly continuous belt do not line up match only in elevation show differing structure and ages
Answer:
form a nearly continuous belt
Explanation:
When the landmasses of the British Isles and Scandinavia are fitted together, mountain chains and rock types form a nearly continuous belt.
Answer:
form a nearly continuous belt
Explanation:
How do producers create energy for survival?
A. through photosynthesis
B. through decomposition
C. by eating animals
D. by eating plants
*A*
Common unused materials like water, carbon dioxide, and other minerals is used to make sugar through photosynthesis. They obtain the energy through the sugars.
Through photosynthesis create energy for survival.
How do energy producers make enough to survive?The process by which plants convert carbon dioxide, water, and sunshine into oxygen and sugar-based energy is known as photosynthesis.
What are the types of photosynthesis?There are two types of photosynthetic processes:
Oxygenic photosynthesis.Anoxygenic photosynthesis.To know more about photosynthesis :
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Which nutrient tends to cycle within a single ecosystem?
Answer:
Phosphorous
Explanation:
Phosphorous an essential nutrient in the ecosystem.
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A scientist discovers a new body between the orbit of Neptune and the Kuiper Belt. The object is round and travels in an orbit around Neptune with other space objects. The scientist claims that she has found a new dwarf planet. Where is the scientist’s error?
The error is that an object orbiting Neptune would not be classified as a dwarf planet because it does not orbit the Sun directly, which is a requirement for dwarf planet status.
Explanation:The scientist's error lies in identifying an object that orbits around Neptune as a dwarf planet. By definition, a dwarf planet must directly orbit the Sun, not another planet. According to the International Astronomical Union (IAU), a dwarf planet must satisfy certain criteria, including orbiting the Sun and having sufficient mass for its self-gravity to overcome rigid body forces so that it assumes a near-spherical shape. However, a key feature is that while a dwarf planet must have cleared the neighbourhood around its orbit, an object that is gravitationally dominanted by and in orbital resonance with a planet, as described in the scenario, would likely be considered a moon or satellite of that planet rather than a dwarf planet. The Kuiper Belt is a region beyond Neptune that includes trans-Neptunian objects (TNOs) and is replete with potential dwarf planets, like Pluto and Eris, which are in direct orbit around the Sun and not tethered to another planet's orbit.
5 Points
What is term for the process of gathering information through images taken
at a distance?
O
A. Global positioning
O
B. Topography
O
C. Remote sensing
O
D. Cartography
SUBMIT
electron movement around the nucleus of an atom is analogous to the way
Answer:
yes
Explanation:
extension of proton to electrons
Answer:
yes
Explanation:
Protons and neutrons make up the nucleus in the center of the atom. “Early on, we thought that electrons were revolving around the nucleus like planets,” Cooley said. If you add energy, electrons can move to a higher orbital level and then back again when the energy returns to normal.
7. Which of the following is NOT a reason that cells divide?
a. cells are too small to function
C. growth and development of an organisms
d. maintain proper surface area-to-volume ratio
The following is NOT a reason that cells divide - a. cells are too small to function
The major reasons for the cell division are as follows
Food, Waste, and Gas Exchange to ensure the survival of cell these toxic substance need to remove from the cell and to maintain a workable ratio of surface area to volume to allow an efficient transfer of materials in and out of the cell.GrowthIn order for an organism to grow, they must divide so they can get larger.Repair - cells requires continuous repairing.Reproduction or increase their number.Thus, The following is NOT a reason that cells divide - a. cells are too small to function
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Which of the following occurs as proteins form?
A. Chains of DNA codons and RNA anti codons form.
B. Specific codons pair with specific anti codons.
C. DNA strands form a backbone of sugar rings and phosphate groups.
D. Peptides bond to nucleic acid molecules.
Answer:
B. Specific codons pair with specific anti codons.
Explanation:
The nucleotide sequence of mRNA serves as a template for protein synthesis. During the process of protein synthesis, the mRNA nucleotide sequence is read in the form of triplet codons. The tRNA with the complementary anticodon sequence joins the mRNA.
There is base pairing between codon of mRNA and its complementary anticodon of tRNA followed by the formation of a peptide bond between existing amino acid on the ribosome and incoming amino acid carried by tRNA.
Question 20 of 20 :
Select the best answer for the question.
20. Which of the following is not a defining characteristic of plants?
O A. Plants are prokaryotic
O B. Plants are eukaryotic
O C. Plants have cell walls
O D. Plants contain chloroplasts for photosynthesis
Answer: Option A
Explanation: Plants are the group of eukaryotes that performs the process of photosynthesis. This is due to the presence of chloroplast that helps in trapping sunlight.
The radiant energy is converted into chemical compound known as glucose. Plant cell posses cell wall which acts a barrier between the pathogens, water, other harmful substances and plant.
The correct answer is option A
Which measurement unit represents volume?
liter
kilometer
square centimeter
centigram
Liter because you're measuring liquid.
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a substance that influences the reaction but does not participate in thereaction is a
Answer:
Catalyst
Explanation:
Catalyst is a substance that influences the reaction but does not participate in the reaction.