Staar Biology

Natural selection is

• survival of the fittest

• humans change

• two species are the same

• more animals survive

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

NGSS.MS-LS4-4

What is a change in an organism that allows for it to survive in its environment?

• homologous

• vestigial

• variation

• adaptation

Tags

NGSS.MS-LS1-5

NGSS.MS-LS4-4

What is a producer?

• an organism that gets energy from eating other organisms

• an organisms that uses sunlight to make its own food

• an organism that gets energy from eating dead organisms, non-living material or waste

• an organism that uses chemical energy to make its own food

Tags

NGSS.MS-LS1-6

NGSS.MS-LS2-3

succession that occurs in an area with no soil

• ecological succession 

• primary succession 

• secondary succession

• pioneer speciles

How do lichens contribute to primary succession?

• Lichens decompose organic matter from animals and plants

• Lichens begin to break down rock to form soil

• Lichens are nitrogen fixing bacteria

• Lichens convert carbohydrates into fossil fuels.

Tags

NGSS.MS-LS2-3

After a forest fire, an ecosystem would start regrowth through -

• primary succession

• secondary succession

• climax community

• limiting factors

Tags

NGSS.MS-LS2-3

What are the three main parts of a nucleotide?

• carbon, hydrogen, and oxygen

• phosphate, sugar, and nitrogen base

• phosphate, sulfate, and nitrate

• adenine, thymine, and uracil

NUCLEOTIDES ARE THE BUILDING BLOCKS OF...

• CARBOHYDRATES

• LIPIDS

• NUCLEIC ACIDS

• PROTEINS

Tags

NGSS.MS-LS3-1

Guanine bonds with ______________.

• Adenine

• Guanine

• Cytosine

• Thymine

Adenine bonds with ______________.

• Guanine

• Thymine

• Cytosine

• Adenine