Kevin is studying predator-prey interactions. One day he notices a spider eating a cricket caught in its web. Later that day, a bird eats the spider. How many consumers has Kevin observed directly in this scenario?

The passageway leading to the tympanic membrane is the:

What are the similarities and differences between a biosphere and a community?

What are the different proteins used in the Plasma Membrane?

What is the water cycle? O A) It is the storing of water under, on or above the Earth's surface. OB) It is the removal of water under, on or above the Earth's surface. It is the continuous movement of water under, on or above the Earth's surface.

The diastolic blood pressure is the pressure when the heart contracts. a. True b. False

plants contain lignified conducting cells.

What do male and female gametophytes produce, respectively?

Energy is released from atp when? a. Adenine bonds to ribose b. A phosphate group is removed

How are frog bones similar to trees?

In domestic cats, each somatic cell has 38 chromosomes. How many chromosomes would be found in the egg of a female domestic cat? A. 19 B. 76 C. 8 D. 38