Bats, frogs, crocodiles, and dogs all have a bone called the humerus in each forelimb. What does this suggest about their ancestry

What feature of cell theory is best demonstrated in the image

The circles, or orbits, for electrons are called energy levels. each level can hold only a certain number of electrons. add electrons to each level until you can't add any more. how many electrons can each level hold?

Match the following items 1. rr 2. rr 3. identical alleles 4. unlike alleles 5. rr ()homozygous, recessive ()homozygous definition ()heterozygous, dominant cell ()heterozygous definition () homozygous, dominant cell