CSI Wildlife Review

A keystone species fills a unique ecological niche and therefore carries unique functions in an ecosystem

• True

• False

What is species diversity?

• the different animals in an area

• the different habitats in an area

• the different plants in an area

• the different living things (plants and animals) in an area

Tags

NGSS.HS-LS2-6

NGSS.HS-LS4-5

What is a keystone species?

• A species that helps to hold an ecosystem together

• A species that lives in or around rocks

• Keys and stones have nothing to do with ecology

• A keystone isn't a living thing, it's just a stone

Tags

NGSS.HS-LS2-6

If the number of elephants killed was reduced to 25,000, what percentage of the elephants (total population 470,000) would be killed each year?

• 10%

• 5%

• 20%

• 15%

Tags

NGSS.HS-LS2-7

An alternate form of a gene.

• Gene

• Chromosome

• Allele

A cell structure that contains genetic information along strands of DNA.

• Allele

• Chromosome

• DNA

Tags

NGSS.HS-LS1-1

Pattern of DNA fragments obtained by examining a person's unique sequence of DNA pairs.

• DNA Fingerprint

• Allele

• Chromosome

A method of separating molecules, such as DNA, according to their size and electrical charge.

• Electrophoresis

• DNA Fingerprint

• DNA Probe

Segment of DNA in a chromosome that contains information used to produce a protein or an RNA molecule.

• Gene

• Allele

• Chromosome

Tags

NGSS.HS-LS3-1

A method used to rapidly make multiple copies of a specific segment of DNA.

• PCR (Polymerse Chain Reaction)

• Electrophoresis

• DNA Probe