Which statement is an example of variation within a species? picture attatched. A. Birds have wings, and so do butterflies.
B. Some squirrels are gray, and others are brown,
C. A lion roars and so does a tiger.
D. Dinosaurs are extinct but we know that they existed because of fossils.

Acertain species of fish can have either long or short fins. the allele for long fins is dominant over the allele for short fins. a heterozygous, long-finned fish is crossed with a homozygous, short-finned fish. of the offspring, will have long fins and be , and will have short fins and be .

Does any one know what blood tastes like

Which of th following is needed for cellular respiration to occur