Modern birds have feathers and can fly. when paleontologists discovered a fossil of archaeopteryx, a dinosaur with feathers, they suggested perhaps it could fly. what big idea in biology did they apply in this situation?

Which of the following cells would have a different genetic composition than the other three in an animal with a diplontic life cycle? a. neuron b. bone c. cell kidney d. cell gamete

What is a geologic time column?

Which of the following chemicals is first produced by the Calvin Cycle?

What provides energy to muscles

Which phase of the bacterial growth curve, involves more cells dying than reproducing?

Where in the brain are structures with endocrine function located

What would happen to a grape placed in a bowl with highly concentrated sugar water

A guest drinking a glass of champagne may have a higher BAC than a similar guest drinking a glass of red wine because

1. Over time, the mushrooms that grow in a certain forest have been overharvested by humans. As a result, the number of mushrooms in the area has decreased dramatically. Fewer forest trees will become infected with harmful Dutch elm disease.

Why are semi-synthetic penicillins more widely used instead of the natural penicillin g?