Science CAST Review

Is the natural interconnection of food chains and a graphical representation of what-eats-what in an ecological community.

• Abiotic Factor

• Biotic Factor

• Food chain

• Food Web

Answer explanation

Review topic: Ecosystems

Tags

NGSS.MS-LS2-3

An individual animal, plant, or single-celled life form.

• Organism

• Habitat

• Population

• Community

Answer explanation

Review topic: Characteristics and organization of life

Tags

NGSS.MS-LS1-3

NGSS.MS-LS1-1

What type of cell is this?

• Animal

• Human

• Plant

• Chloroplast

Answer explanation

Cell wall, large vacuole, and chloroplasts mean that this is a plant cell.

Review topic: Cells and organelles

Tags

NGSS.MS-LS1-1

What is a chloroplast used for?

• To contain the DNA

• To remove the waste

• To make proteins

• To allow photosynthesis to occur

Answer explanation

Review topic: Cells and organelles

Tags

NGSS.MS-LS1-2

NGSS.MS-LS1-6

Which organelle contains the DNA?

• Chloroplast

• Nucleus

• Ribosomes

• Mitochondria

Answer explanation

Review topic: Cells and organelles

Tags

NGSS.MS-LS1-2

NGSS.MS-LS3-1

Which organelle makes protein?

• Chloroplast

• Nucleus

• Ribosomes

• Mitochondria

Answer explanation

Review topic: Cells and organelles

Tags

NGSS.MS-LS1-2

How many chromosomes are in each cell in our bodies?

• 23

• millions

• 36

• 46

Answer explanation

Review topic: Genetics

What is the probability of getting (gg) for the offspring?

• 100%

• 75%

• 50%

• 25%

Answer explanation

Review topic: Genetics

Tags

NGSS.HS-LS3-3

Dad has dimples (DD) but mom does not (dd). Can they have children with no dimples?

• yes

• no

Answer explanation

Review topic: Genetics

Tags

NGSS.MS-LS3-2

The graph below shows the movement of an object at several points in time. What is the average speed of the object?

• 0.5 meters per minute

• 2 meters per minute

• 25 meters per minute

• 50 meters per minute

Answer explanation

The first lattice point is (5,10). So, in 5 minutes, the object has traveled 10 meters. Because this is a proportional relationship, we can divide y by x. 10/5 = 2, so the slope is 2 meters/minute.

Review topic: Rate of change/slope

Tags

NGSS.MS-PS3-1