In Systema Naturae, Linnaeus classified nature into a hierarchy. He proposed that there were three broad groups, called kingdoms, into which the whole of nature could fit. These kingdoms were animals, plants, and minerals. He divided each of these kingdoms into classes.
It was developed by Swedish botanist Carolus Linnaeus in the 1700s. He tried to classify all living things that were known at his time. He grouped together organisms that shared obvious physical traits, such as number of legs or shape of leaves.
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Answer:
Option 3: the cells express different genes.
Explanation:
While all cells contain the same genes (the DNA does not change based on cell function), cells can choose to express different genes during the differentiation process so they become specialized for different functions.
In this case, skin cells may begin to develop with high concentrations of strengthening proteins such as keratin and collagen, in order to carry out their main functions e.g. to act as a strong barrier against parasites, bacteria, etc.
Whereas muscle cells may have less of these proteins because their function is different, and instead may focus on developing more mitochondria to provide energy to carry out their main jobs (movement).
Answer: The correct answer is- Theory.
Hypothesis can be described as an assumption or proposition, which is made on the basis of certain evidences without knowing the real truth about it. It is tested further for investigation about the proposed explanation with the help of repeated experiments (using certain protocols).
When it becomes supported by repeated experimentation, it is converted into theory.
Thus, theory is the right answer.
B.)Gross anatomy refers to parts of an animal that are not properly functioning, whereas microscopic anatomy refers to healthy parts.
C.)Gross anatomy refers to parts of an animal that can be seen with the naked eye, whereas microscopic anatomy needs magnification to be seen.
D.)Gross anatomy refers to parts of an animal that are dependent on one another, whereas microscopic anatomy is the parts that are independent.
a. scales
c. lipids
b. hair
d. tibia
b. partly moveable joints.
c. movable joints.
d. none of the above
Answer:
Dolphins and fish share a distant, common ancestor.
Explanation:
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