EOC Biology Review

A reduction in which of these would lead to a decrease in all other populations?

• Coyote
• Grass
• Grasshoppers 
• Squirrel 

Tags

NGSS.HS-LS2-1

NGSS.HS-LS2-6

Which of these best explains the difference between the way animals and plants exchange gases with their environment?

• Animals use only photosynthesis, while plants use both photosynthesis and respiration
• Animals use only respiration, while plants use both photosynthesis and repiration
• Animals use both photosynthesis and respiration, while plants use only respiration
• Animals use both photosynthesis and respiration, while plants only use photosynthesis

What is the main function of a selectively permeable membrane?

• storage of water
• storage of chemicals
• breaks down molecules within the cell
• regulates what enters and leaves the cell

In a certain insect, round wings (R) are dominant to pointed wings (r). Which cross will produce the greates number of genotypic and phenotypic variations?

• rr X rr
• Rr X Rr
• Rr X RR
• RR X RR

Tags

NGSS.HS-LS3-3

Which of these best describes the initial change caused by a DNA mutation?

• a change in the swquence of base pairs 
• a change in the production of enzymes 
• a change in the number of nucleosomes within a cell
• a change in the number of hydrogen bonds between the bases 

Tags

NGSS.HS-LS3-2

Which of these best describes mutualism? 

• a relationship between two species where both species benefit
• a relationship between two species where neither species benefits
• a relationship between two species where one species benefits and one is not affected
• a relationship between two species where on species benefits and the other is harmed

Which abiotic factor limits the altitude at which plants can grow? 

• the presence of a parasite
• the temperature of the area
• the presence of herbivorous animals
• the concentration of bacteria in the soil

Tags

NGSS.MS-LS1-5

How many daughter cells are formed in meiosis? 

• 0
• 1
• 2
• 4

Tags

NGSS.HS-LS3-2

Which of these shows the steps by which proteins are coded and synthesized? 

• RNA-> DNA-> protein
• DNA-> RNA-> protein
• protein-> RNA-> DNA
• protein-> DNA-> RNA

Tags

NGSS.HS-LS1-1

Two gametes containing 20 chromosomes fuse during fertilization. How many chromosomes will the zygote? 

• 10
• 20
• 40
• 80

Tags

NGSS.HS-LS3-2