Rhizobium:

feed on legumes

add nitrogen to soil

are a special type of bacteria

all of the above

Describe 5 life activities in order for all animals to survive

An egret eats insects stirred up by grazing animals. Which of these terms applies to the relationship between the egret and the grazing animal?

The Arabic word Sahel means

The presence of predators lessens the effects of (blank) among prey?

What is the weather of a certain area over a long period of time?

4 most common elements in an organism

What part of the sarcolemma contains acetylcholine receptors?

What happens to the water particles in a wave? The wave pushes the water particles forward. The water particles move in a circular pattern. The wind pushes the water particles down. The water particles move up through the wave.

Which scientists first discovered gene linkage on chromosomes?

One cubic centimeter is equal to one millimeter (mL). How many liters of water can a 1,800 cm^3 pan hold.