Which statement correctly explains a symbiotic relationship? A
Mutualism is a relationship in which intestinal bacteria produce Vitamin K in humans.

B
Parasitism is a relationship in which a spider crab is camouflaged with seaweed on its back.

C
Commensalism is a relationship in which a blood-sucking mosquito feeds on the blood of a dog.

D
Predation is a relationship in which a plant grows taller in bright sunlight than in a shaded area.

1. environmental factors, such as ph and temperature, can affect the function of an enzyme. a. true b. false 2. which of the following is an organic molecules (ex. vitamins) that an enzyme? a. coenzyme b. product c. active site d. substrate 3. how do enzymes effect the speed of a chemical reaction? a. they speed it up b. they slow it down c. they have no effect on the speed of a reaction 4. during a chemical reaction, an enzyme is used up so that it can only be used one time. a. true b. false 5. which of the following results from a chemical reaction that is catalyzed by an enzymes? a. active site b. product c. substrate d. coenzyme

Why is excretion necessary to maintain homeostasis?

What is the surface temperature of the ocean where hurricanes form? greater than 80 celsius approximately 27 celsius at least 76 celsius less than 10.5 celsius