Question 21.

 

The Tomato Hornworm is the caterpillar stage of the five-spotted hawkmoth. the objects seen on the back of the caterpillar are wasp eggs. When the larvae hatch they will feed on the worm. Which term best describes the relationships between the wasps and the tomato hornworms?

 

A. Mutualism

B. Competition

C. Predation

D. Symbiosis

 

Question 22

 

What is the one way in which energy flow differs from chemical cycling?

 

A. Energy flow is unidirectional; chemical elements can be recycled

B. Energy can enter but cannot leave an ecosystem; chemical elements can leave but cannot enter an ecosystem

C. Energy flows from lower to higher trophic levels; chemicals cycle from higher to lower trophic levels

D. Energy can both enter and leave an ecosystem; chemical elements always remain within a single ecosystem

 

Question 23

 

Why do Some scientist argue that viruses are non living?

 

A. Viruses evelve

B. Viruses are able to reproduce

C. Viruses have an organized and complex structure

D. Viruses are not made of cells

 

Question 24

 

Which of the following activities decreases greenhouse gasses in the atmosphere

 

A. Cutting down trees

B. Driving gasoline-powered vehicles

C. Using electricity from coal power plants

D. Planting trees

 

Question 25

 

How does high heat impact most enzymes

 

A. Enzymes activity is decreased due to hydrolysis

B. Enzymes are inactivated due to denaturation

C. Enzymes activity is increased due to saturation

D. Since enzymes are temperature independent activity will remain the same

 

Question 27

 

 

if life on another planet were fundamentally like life on earth, the macromolecules of living things would be based on which element?

 

A. Carbon

B. Hydrogen

C. Nitrogen

D. Oxygen

E. Phosphorus

 

Question 28

 

Which of the following statements best describes the relationships between photosynthesis and respiration?

 

A. Photosynthesis occurs only in plants and respiration occurs only in animals

B. Respiration is anabolic and photosynthesis is catabolic

C. Photosynthesis stores energy in complex organic molecules, while respiration releases it.

D. ATP molecules are produced in photosynthesis and used up in respiration

E. Photosynthesis produces energy, respiration uses energy

 

Question 29

 

You have formulated a hypothesis. Pineapples contain more vitamin C. than oranges. to test this hypothesis you measure vitamin C levels in 20 oranges and 20 Pineapples from trees that were grown in the same orchard under the environmental conditions, ( temperatures, rain, sunlight) select all the statements that are true about this experiment

 

A. The control group in the experiment is the oranges

B. The type of fruit is a controlled variable

C. The independent variables is temperatures

D. The dependent variables is the vitamin C levels in the pineapples and oranges