Which of the following is a biotic factor of a water ecosystem?

a. green algae

b. sun energy

c. soil sediments

d. water temperature

Which population dispersion type seems to be employed most by humanity? Defend your choice

Abi measures the volume and weight of four objects and records his data in this table. Which object has the most mass? W X Y Z

Enzymes and acidic juices in the stomach, which break proteins down into smaller molecules, is know as

Down syndrome can occur: a. as a result of translocation during mitosis. b. most frequently in the offspring of men under the age of 40. c. most frequently in the offspring of women under the age of 40. d.

A patient (who suffers from asthma) has developed reddened blistered skin. which condition is she likely to be suffering from? vitiligo cellulitis alopecia eczema

What percentage of water is lost through the respiratory system? 5 to 10 percent 10 to 20 percent 35 to 50 percent 50 to 75 percent

HURRY! The cell membrane is selectively permeable because of its molecular structure. Based on this, which one of these would NOT diffuse directly through the cell membrane?

What is the net force on 2-kg skateboard accelerating at a rate of 2m/s2?

Which of the following is one effect storm waves have on a beach?

What is the process known as in which there is a change in one form such as a tadpole into a frog?