Biology Final

The sum total of the variety of organisms on Earth is referred to as

• Ecosystem

• Forest

• Biodiversity

• Agriculture

Tags

NGSS.MS-LS2-5

Which statement best explains why ecosystems must have a constant input of energy from the Sun during the growing seasons?

• The amount of solar energy will decrease in the winter.

• Most of the energy flows up to the highest trophic levels

• Energy is constantly lost as heat due to decomposition and respiration

• Photosynthesis allows plants to store solar energy as chemical energy.

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

Zooplankton are microscopic organisms in this ecosystem. Given the information in this food web, which change would most likely cause an increase in the zooplankton population in the lake?

• Removing the bass

• Adding more bass

• Adding more sunfish

• Adding more shad

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

After being gone for many years, wolves were reintroduced into Yellowstone National Park in 1995. Given the information in the food web, which species likely benefited the most from the return of the wolves?

• Deer

• Grasses

• Elks

• Gophers

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

NGSS.MS-LS2-2

Positive feedback is when the change caused by the stimulus is

• decreased
• non existant
• increased
• changes constantly

Tags

NGSS.HS-LS1-3

If the environment gets cold, we will often shiver in order to:

• keep body temperature the same as the external temperature
• decrease body temperature
• increase body temperature
• regulate blood pressure

Tags

NGSS.HS-LS1-3

Genotype refers to the ...

• physical expression of the genes
• the possible combination of alleles in a gene
• whether an allele is dominant or recessive
• how an organism will appear

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-2

A homozygous dominant dog with brown fur is crossed with a heterozygous dog with brown fur. What are the percentages of the possible genotypes?

• 100% BB
• 75% BB and 25%Bb
• 50 % BB and 50% Bb
• 50% Bb and 50% bb

Tags

NGSS.HS-LS3-1

NGSS.HS-LS3-3

What is the relationship between DNA and chromosomes?

• Chromosomes are made of DNA
• DNA is made of chromosomes
• DNA and chromosomes are the same thing.
• All of the above are correct

Tags

NGSS.HS-LS3-1

What is the correct amino acid sequence for the mRNA code AUGCCAGUAUGA

• Met-Pro-Ala-Val
• Met-Pro-Val
• Tyr-Gly-His
• Tyr-Gly-Arg-His

Tags

NGSS.HS-LS1-1