A home heating system is to thermostat as the human body is to A. hormone-receptor complex. B. reproductive system. C. hypothalamus. D. target cells.

Which of the following statements correctly explains the fact that all seven of the pea plant traits studied by Mendel obeyed the principle of independent assortment?

Genes are ___. A - responsible for inherited traits B - units of coded DNA C - located in a specific place on a chromosome D - all of the above

Are tomato a simple, aggregate, or multiple fruit?

What pollutants from agriculture affect our groundwater?

Which type of molecule is fat? lipid carbohydrate protein nucleic acid

Biomes can be classified geographically.

What species is on top of the food chain eagle, mountain, or a mouse

Factors that do not affect the appearance of a coast from the water side include

Which of the following is a possible scenario that could lead to a new species? A tree frog needs to jump higher to escape predators. The frog's offspring jump higher due to the frequency of jumping by the parent.

Instinct is a changing, biologically inherited behavior pattern. T or F?