The reason we can detect so many different odors is that each olfactory neuron is slightly different from the others, allowing for a wide range of odor sensations.

a. True

b. False

If energy can't be created according to the first law of thermodynamics, where does it initially come from? plants water the Sun

Contrast the Earth's three major layers.

What is the meant by the following statement the cell membrane is said to be "fluid"?

What is a DNA probe?

What some non-examples of nucleic acids?

Explain how the use of a chemical designed to kill grasshoppers could reduce the population of peregrine falcons.

The movement of water is able to transport minerals and nutrients. Which statement best explains why water is able to do this? A. Water is an excellent solvent. B. Water absorbs heat energy. C. Water has a density of one gram per milliliter. D.

Maintains a constant body temperature even when external temperature changes external temperature sets the internal temperature internal temperature constantly changes A. endotherm B. ectotherm C. poikilotherm

Which of the following statements regarding the control of C. botulinum in canned sauerkraut is not correct? a. salt in the sauerkraut inhibits the growth of C. botulinum bacteria b. an acidic pH (less than 4.

What are some careers involving animals? I want to become a vet, but are there other options?