All animals are

A) land-dwelling multicellular heterotrophs

B) capable of walking on legs

C) multicellular, heterotrophic and lack cell walls

D) unicellular or multicellular, heterotrophic and lack cell walls

Which two systems work together to provide cells with oxygen and remove carbon dioxide from them?

How many terms of the calvin cycle would be required for a plant to make one molecule of glucoses?

Which meninx is the deepest in its location?

Fluid found inside cells is called: a. intracellular b. extracellular c. intercellular d. interstitial

Which is an ion found in a glass of water? A. H+ B. N+ c. O- D. O2

When you eat a bag of cookies, your blood sugar level increases. As blood sugar levels rise, insulin levels increase to move the sugar into the cells and lower the blood sugar level. As the blood sugar level drops, so does the level of insulin.

Mendel's law of independent assortment has its basis in which of the following events of meiosis I?

Describe a procedure humans may have used to produce broccoli, which has small flowers and thick stems?

In the United States, mothers who live in poverty generally have babies with lower birthweight than those who do not live in poverty. The mean birthweight for babies born in the U. S. to mothers living in poverty is approximately 2800 grams.

Hypothesis on whether radiation has the same impact on coastal, forest, and desert areas