Classify each description as applying to either heterochromatin or euchromatin.

Explain how sequences of amino acids in proteins can be used to reveal relationships among organisms.

2points what do bacteria have in common with the cells of other living organisms?

Which of the following is an example of competition a. the leaves of a tree prevent a small shrub from getting sunlight. three species of birds feed a different heights in the same tree. b. three species of birds feed at different heights in the same tree c. zebra and giraffe’s feed on different grassland plants d. cats living in two different homes eat the same brand of cat food.