Unit 2 & 3

Movement of molecules from an area of high concentration to low concentration, as shown in the image, is known as -

• Diffusion

• Cellular Respiration

• Decomposition

• Adaptation

Tags

NGSS.MS-PS1-5

Which cell types are eukaryotic? (You may select more than one)

• Plant

• Bacteria

• Animal

• Virus

Prokaryotic cells contain...

• no DNA

• no nucleus

• no ribosomes

• the exact same structures as eukaryotic cells

Which process creates 2 exact copies of the original parent cell?

• Mitosis

• Meiosis

• Sexual Reproduction

• Both mitosis and meiosis

Tags

NGSS.HS-LS1-4

The diagram shows a DNA molecule. DNA can best be described as -

• being flat like a sheet of paper

• being rod-shaped

• having a double helix shape

• a single strand with two nitrogen bases

Tags

NGSS.HS-LS1-1

A change in the genetic makeup of an organism is called ___.

• an adaptation

• evolution

• a mutation

• natural selection

Tags

NGSS.MS-LS3-1

Which cell is most likely a plant cell?

• Cell A

• Cell B

• Cell C

• Cell D

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

A student examines a model of a plant cell with a structure (X) labeled. What is the name and function of structure X?

• Nucleus - controls all the functions of the cell

• Chloroplast - produces sugar for the cell through the process of photosynthesis

• Golgi Complex- packages and sends materials around the cell

• Mitochondrion - converts food & oxygen into usable energy

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-1

If a typical human body cell has 46 chromosomes, meiosis will produce sex cells (gametes) with how many chromosomes?

• 23

• 46

• 92

• 4

Tags

NGSS.MS-LS3-2

In rabbits, black fur (B) is dominant over white fur (b).  If a hybrid black rabbit mated with a purebred white rabbit, what percentage of the offspring will have black fur?

• 100%

• 25%

• 75%

• 50%

Tags

NGSS.MS-LS3-2