The answer is C.) Sac. More formally known as the amniotic sac. It's also sometimes called the bag of waters.
Answer:
The emergence of new species from surviving ancestral species and both species continue to interact during a transition period is known as Sympatric Speciation.
Explanation:
Hybrid Zone is the area where two species continue to interact. Hybrid offspring are produced by two different species.
1) hybrid offspring
2) zones
3) reinforces
4) zones
5) Slow down
6) gradual speciation model
7) punctuated equilibrium
The answer is: [D]: "ammonia" .
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Answer: the three types of freshwater are swamp,bog and marshes
Explanation: similarities between them
They are all covered with shallow layers of water during some or all of the year.surface water comes from streams,rivers,lakes,ponds and oceans and the Earth's surface.
Difference between them
Bogs are found in cooler northern areas,tends to be acidic and contain many mosses
Swamps are many trees and shrubs and are found in the warm and humid southern United State
Marshes are usually grassy
The statement from the lab that best represents a conclusion for the investigation is that students who spend less time studying after school get lower math grades. Option D.
<h3>Aim and conclusion of investigations</h3>
In scientific investigations, conclusions are usually drawn from the aim and objectives of the investigations.
In this case, the aim of the investigation is to identify factors that affect the math grades of students. Math grades happen to be the dependent variable in this case.
Thus, the only conclusion that is more encompassing as far as the aim of the investigation is concerned is option D. That is, students who spend less time studying after school gets lower math grades.
More on research investigations can be found here: brainly.com/question/4118656
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