Sally bought some bird seed for the birds in her backyard. she noticed that the cardinals were not eating any of the seeds she put in the bird feeder. what would be a testable question sally could ask about the cardinals' feeding habits? a) how much do cardinals eat in one day? b) cardinals like sunflower seeds the best. c) what kind of seeds do cardinals like to eat best? d) why do cardinals like one kind of seed more than others?

The correct answer is C) What kind of seeds do cardinals like to eat best?

Explanation:

In science, a testable question is a question that can be answered through experiments or tests, and by following the scientific method. In the case of Sally, the best question for her is "What kind of seeds do cardinals like to eat best?" because this question addresses the main phenomenon she wants to study that is the cardinals' feeding habits or what cardinals eat. Also, this question is testable because Sally can discover the answer by placing different kinds of seeds and observing which ones Cardinals choose.

the answer is a or when it says crossing over

the cladogram shown here shows similarities and differences among several classes of vertebrates. anatomically, the four have limb structure as their common ancestor. we might separate the mammals from the other three classes because they a) divergent; do not lay eggs b) identical; are warm-blooded c) varied; a four chambered heart d) homologous; have mammary glands