Biology EOC 3

Genetic variation can aid in the survival of species when the environment changes. Which of the following is the best example of an organism with a genetic variation that could improve survival chances over time? 

• an ant that is resistance to pesticide
• a wasp that is infected with parasites
• a cactus that has no spines
• a mouse that has learned to avoid mousetraps

Methanogens, thermophiles, and halophiles are some of the most primitive life-forms found on Earth and thrive in very harsh environments. These unicellular, prokaryotic organisms most likely belong to which of the following kingdoms? 

• Fungi
• Eubacteria
• Protista
• Eubacteria

A lichen is composed of two organisms, a fungus and a cyanobacterium. The fungus provides a growing surface, moisture, and nutrients to the cyanobacterium. The cyanobacterium provides food to the fungus. This relationship is considered to be an example of which of the following? 

• Commensalism
• Mutualism
• Neutralism
• Parasitism

Having a standard taxonomic system benefits the scientific community by allowing scientists from all over the world to do which of the following?

• Have a common system for the classification of locations containing fossils
•  Use a similar system to classify the impact of removing species from ecosystems
•  Have a common understanding in the classification of organisms
• Understand how other scientists classify predator–prey relationships

Health-care workers are exposed to many different types of pathogenic and nonpathogenic microorganisms. Which body systems work together to protect the body from pathogens?

• Muscular and vascular
• Digestive and excretory
• Circulatory and immune
• Endocrine and reproductive

Tags

NGSS.HS-LS1-3

Which of these statements best explains the process of energy conversion that takes place in the mitochondria?

• Energy is required for carbon dioxide molecules to form six-carbon sugar molecules.
• Water molecules and radiant energy are necessary for anaerobic respiration to take place.
• Oxygen molecules release energy in the form of heat during combustion reactions.
• The energy in the bonds of glucose molecules is transferred to the phosphate bonds in ATP

Leaves are part of a plant’s shoot system. The xylem tissue in leaves transports —

• the bacteria needed for nitrogen fixation in root nodules
• the wax required to coat the surface of actively growing tissue
• the water and minerals that are absorbed by the roots
• the oxygen that regulates the rate of carbohydrate production

asad

• a
• b