Two oval shaped tissues at the back of the throat that prevent infection by trapping pathogens that enter the nose and the mouth.

3). Which process can result in increased biomass for a plant: cellular respiration or photosynthesis? Where does the mass come from? What molecules are taken in by the plant cells?

The death of every member of a particular species is known as what?

Sponges are sessile how do they get food while staying at one place

Which of the following is a nonrenewable resource? O A. Animal species O B. Light energy from the sun O C. Natural gas O D. Mechanical energy from wind

Below are some different scenarios for the heritability of a trait and the selection differential in a population. which scenario will produce the largest response to selection?2

Water has a higher specific heat index than other common materials, so it takes a lot of energy to raise the temperature of water. How would this affect climate? A) Areas surrounded by water would have more snow.

Is pH=2 an acid, a base, or neutral

After one species disappears, the other species in the ecosystem

The level of which hormone increases after ovulation

What does sodium-potassium pump do?