What can the presence of different types of fossils tell us about how this environment changed over time? a. This environment has been an ocean from long ago through more recent times.
b. This environment has slowly changed from being an ocean to a swamp to a forest.
c. This environment has gotten much cooler over the period of time represented by these fossils.
d. This environment has become covered with water.

B. the Environment has slowly changed from being an Ocean to a Swamp to a Forest.

Explanation:

makes the most sence when comparing it to the picture

b. This environment has slowly changed from being an ocean to a swamp to a forest.

Explanation:

As we can see, there are water creatures in the first picture, then there were frogs and dragonflies, which are commonly found in swamps (crabs too). We see tree leaves and frogs in the last picture, which are common in forests.

carbohydrates: (starches and sugars) composed of carbon, hydrogen, and oxygen.

lipids: (fats, oils, and waxes) are made of carbon and hydrogen atoms.

nucleic acids: contain hydrogen, oxygen, nitrogen, carbon, and phosphorus. they are polymers of nucleotides. a nucleotide has three parts, a 5-carbon sugar, a phosphate     (-po⬇️4) group, and a nitrogenous base.

proteins: made up of nitrogen, carbon, hydrogen, and oxygen. they are polymers of amino acids.

the answer is d (apex) good luck : ))