<span>Some animals and plants are only known to us as fossils. By studying the fossil record we can tell how long life has existed on Earth, and how different plants and animals are related to each other.
Dats the answer^^^</span>
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Which substances are responsible for accelerating chemical reactions in cells? amino acids enzymes nucleic acids lipids.
Answer:
The correct answer is option A. Fish ladders
Explanation:
Fish ladders are a stair-like structure that gives the passage to the migrating fish to get around a dam to their destinations. As dams are an obstruction to fishes like salmon that migrate in the river upstream to breed, fish ladders have been created to allow the fish to get to their destinations by providing a passage around the dam.
Thus, the correct answer is option A. Fish ladder.
Change in gene frequency of ancient cockroaches led to the evolution of modern cockroaches.
I wish I could help ya, but unfortunately I have no clue what this biology question is.
