When the concentrations of estrogen and progesterone are low
Answer:
c) organisms must eat greater amounts at each lower level
Explanation:
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Generalizability is the process by which conclusions are drawn from a group of research results to create a scientific theory which is statistically probable. The conclusions drawn for example, from a study of a specific group in society can then be applied to a larger population to make a general conclusion. This can have issues based on the variables such as age, gender, location, which may provide less scope for the results; therefore if the study is not taken of a large enough cross-section of results, then it makes the generalizability limited.
Answer:
Homologous characters indicate descent through modification from a common ancestor.
Explanation:
Homologous characters have the same fundamental structures. They also share the same relations with adjacent structures, and they have the same embryological development.
These structures might show variations between organisms exhibiting them, according to their function and to the environment in which the organism lives.
These homologous characters are common in organisms related and that share a <u>common ancestor</u>.
For example, whales, humans, and horses all have the same bones in the same order, but they matured differently in later embryological development. This is an example of homologous characters.
Answer:
The cycle has no beginning and no end. Rocks deep within the Earth are right now becoming other types of rocks. Rocks at the surface are lying in place before they are next exposed to a process that will change them.
Explanation:
There is no beginning or end to the rock cycle, since all rocks on Earth can be influenced by the cycle and develop into new types.