Ca

Which would most likely cause an entire species to become extinct?

• disease

• predators

• competition for food

• limited genetic variation

Tags

NGSS.MS-LS4-4

Which best describes an inherited trait that gives an organism a survival advantage in its particular environment?

• an adaptation

• an offspring

• a mutation

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4

Which best represents an adaptation that allows ducks to survive aquatic ecosystems?

• Ducks have big beaks

• Ducks have waterproof feathers

• Ducks have small feet

Which ecosystem is more likely to survive a change in the environment?

• One with High biodiversity

• One with Low biodiversity

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

List the steps of the scientific method

d

e

f

c

b

a

Form a hypothesis

Analyze results

Ask a question

Draw conclusions

Conduct experiment

Communicate results

Tags

NGSS.MS-LS1-5

NGSS.MS-PS3-4

What is the atomic number of Calcium (Ca)?

• 18

• 20

• 22

• 24

Which of the following is the correct electron configuration for Calcium (Ca)?

Tags

NGSS.HS-PS1-1

Calcium is essential for which of the following biological functions?

• Vision

• Blood clotting

• Respiration

• Digestion

Which compound is formed when Calcium reacts with water?

• Calcium oxide

• Calcium hydroxide

• Calcium carbonate

• Calcium sulfate

Tags

NGSS.MS-PS1-2

What is the common oxidation state of Calcium in its compounds?

• +1

• +2

• +3

• +4

Tags

NGSS.HS-PS1-1

NGSS.HS-PS1-2