What is the lithosphere composed of? Question 3 options:

1. inner core and outer core

2. mantle

3. crust and the outer core

4. crust and the upper mantle

What is predation?

Which of the following information could be included in the description of a grasshopper's niche, but not in a description of its habitat?

1. Which of the following cells is phagocytic? a. Plasma cell b. Macrophage c. B cell d. NK cell

The LDL receptor is a receptor for: a. apolipoprotein B. b. receptor-mediated endocytosis of LDL. c. cell signaling via activation of adenylate cyclase. d. apolipoprotein B and receptor-mediated endocytosis of LDL.

54:04 Which statement best explains why water is essential for all living things? Water makes up 65% of human beings. Water is an essential component of blood Water covers 75% of Earth's surface. Water is necessary for cellular functions

Passive transport is the act of a molecule moving freely down its concentration gradient. true or false

Identify and explain three major issues that cut across psychology

Which of the following is an unsegmented acoelomate worm? a. flatworm b. annelid c. roundworm d. echinoderm

Dog breeders maintain the purity of breeds by keeping dogs of different breeds apart when they are fertile. This kind of isolation is most similar to which of the following reproductive isolating mechanisms? A. mechanical isolation B.

From the time of my beginning, my part was made of fibrous material called collagen, which is secreted by