A frog has experienced complete metamorphosis from a tadpole.

True

False

Consider the terms egg, sperm, and sporophyte. Which process links egg and sperm directly to sporophyte?

If a cell has a deficit of DNA, what are two events could happen

A specialized neuron ending that detects changes in pressure in the skin is functioning as:

The alveoli are tiny air sacs in the lung. They have a relatively large surface area and thin walls. This structure allows -

In the fetal heart, the lungs are deflated and the fetus receives oxygen from its mother across the placenta through the umbilical cord. There is an opening in the wall between the left and right side of the fetal heart.

Which of the following best describes a noncontact force? A. a force that is able to act at a distance B. a force that must be physically touching the object it acts on C. a force that always pulls objects backward D.

Which type of energy used on earth comes directly from the sun

Aldosterone is secreted in response to changes in: select one: a. blood potassium levels. b. blood calcium levels. c. blood pressure. d. body temperature. e. blood glucose levels

How does a mutation in dna cause a disease that affects multiple organs?

Dylan is on a strict vegan diet. He doesn't consume meat, fish, eggs, or dairy products. Which nutrient is difficult to obtain naturally from a vegan diet