BIOLOGY EOC

These diagrams show a variety of cells from the same organism. How can cells from the same organism have such different shapes and functions?

• As each cell differentiates, the DNA changes so that each type of cell has different DNA once it reaches maturity.

• Mutations in the cells' nuclei lead to new combinations of DNA, resulting in different shapes and functions in the different types of cells.

• During differentiation, different parts of the DNA in each type of cell are activated, resulting in the different structure and function of the cells.

• During differentiation, different types of cells produce proteins which destroy the nonactive DNA, leading to cell specialization.

Tags

NGSS.HS-LS1-4

Which statement best explains how sweating during exercise maintains homeostasis?

• It regulates mineral concentrations in cells.

• It regulates body temperature.

• It maintains water balance.

• It maintains sugar balance in cells.

Tags

NGSS.HS-LS1-3

What will most likely be the result if all of the mitochondria are removed from a plant cell?

• It will be unable to carry out respiration.

• It will lose water through osmosis.

• It will break down the ribosomes in the cell.

• It will be unable to photosynthesize.

Tags

NGSS.HS-LS1-7

NGSS.HS-LS2-3

What process best explains how a nerve cell and a muscle cell can both develop from the same fertilized egg?

• differentiation

• natural selection

• selective breeding

• genetic engineering

Tags

NGSS.HS-LS1-4

During strenuous exercise, body temperature increases. The body responds to the increase in temperature by sweating, which helps to reduce the body temperature. Which is demonstrated in this situation?

• excretion

• metabolism

• homeostasis

• synthesis

Tags

NGSS.HS-LS1-3

Before mitosis begins, which happens before the nucleus starts dividing?

• The cytoplasm separates

• The DNA replicates.

• The sister chromatids separate.

• The homologous chromosomes cross over

Tags

NGSS.HS-LS1-4

Two different populations of birds live in the same area and eat the same types of food. Which most likely describes the relationship between these two populations of birds?

• competition

• mutualism

• parasitism

• predator-prey

Tags

NGSS.MS-LS2-2

What will most likely happen if the human population continues to grow at current rates?

• There will be fewer natural resources available for future generations

• There will be an increase in nitrogen levels in the atmosphere

• There will be a decrease in water pollution

• There will be an increase in the number of strong hurricanes.

Tags

NGSS.HS-ESS3-1

NGSS.HS-ESS3-5

NGSS.HS-ESS3-6

___ & ___ are made up of a long chain of ________. 

• Proteins, lipids, nucelotides
• Nucleic acids, proteins, amino acids
• DNA, RNA, nucleotides
• Amino acids, nucleotides, lipids

Nucleotides include a 5-carbon ____, a phosphate group, and a _____ base.

• lipid, protein
• protein, nitrogen
• lipid, sugar
• sugar, nitrogen