The fossil record
This supports Darwin's theory of evolution, which states that simple life forms gradually evolved into more complex ones. Evidence for early forms of life comes from fossils. By studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.There are gaps in the fossil record because many early forms of life were soft-bodied, which means that they have left few traces behind. What traces there were may have been destroyed by geological activity. This is why scientists cannot be certain about how life began.
Fossils provide a snap shot of the past and allow us to study how much or how little organisms have changed as life developed on Earth.
The answer is the T tubules.
Answer:
Mutation
Explanation:
A mutation is a change in the sequence of genetic letters, called bases, within a molecule of DNA.
Dinoflagellates are large group of flagellate eukaryotes (multicellular organisms) that constitute the group dinoflagellata. Red tides is a common name for alga bloom (large concentrations of aquatic microorganisms ) which when caused by a few species of dinoflagellate and the bloom takes on a red or brown color. Therefore, the answer to the question is red tides.
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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