G8 TX Science Chapter Test: Chapter 8

Refer to the image to answer the question. Variations of traits within a population lead to adaptations. Which adaptation will likely occur in the population of tortoises shown over time?

• lighter shells

• longer legs

• longer necks

• bigger mouths

Tags

NGSS.MS-LS3-1

NGSS.MS-LS4-4

Refer to the table to answer the question. A scientist tested the effect of four different chemicals on plant cells. The table shows the results of the experiment. Which chemical had an effect on the plant cell's ribosomes?

• Chemical 1

• Chemical 2

• Chemical 3

• Chemical 4

Tags

NGSS.MS-LS1-2

Which statements describe functions of plant cell parts? Choose all correct answers.

• The cell membrane surrounds the plant cell's cytoplasm.

• The plant cell vacuole stores substances like water and starch.

• The plant cell cytoplasm determines what substances enter or leave the cell.

• The cell wall helps maintain the cell's shape and protects the cell from viruses.

Tags

NGSS.MS-LS1-2

An adaptation is a trait that helps an organism to survive or reproduce in its environment. Which terms describe types of adaptations? Select all correct answers.

• physiological

• structural

• behavioral

• variable

Which best describes the function of the Structure labeled P?

• provides support and protection

• site of protein production

• directs cell activity

• stores water and food

Tags

NGSS.MS-LS1-2

The diagram shows a chromosome. Which describes the relationship between this structure and inherited traits?

• It makes genes which are passed to offspring.

• It produces the proteins that generate inherited traits.

• It releases genes as needed to develop traits in offspring.

• It contains many genes which carry information about genetic traits.

Tags

NGSS.HS-LS3-1

The ptarmigan is a bird that lives in the Arctic Circle. It has several adaptations to help keep its feet from freezing. Which is a behavioral adaptation that helps the ptarmigan?

• Unlike most birds, the ptarmigan has feathers on its feet.

• A ptarmigan's claws grow longer in the winter to help it walk on top of the snow.

• Ptarmigans sit on their feet, covering them with their feathers to keep them warm.

• Special blood vessels in the ptarmigan's legs help to distribute warm blood to the bird's feet.

Which best describes a function of genes?

• They form the chromosomes that make up inherited traits.

• They express a trait and are then converted to chromosomes.

• They gather information about an organism’s environment to determine its traits.

• They carry genetic information about specific inherited traits from parent to offspring.

Tags

NGSS.HS-LS3-1

The bacteria were able to grow in plate Q because they had a (a)   trait that allowed them to survive the effects of the antibiotic.

• physiological
• structural

• behavioral

Tags

NGSS.MS-LS4-4

Which structure's function is to absorb light, and use its energy to make the sugar glucose?

• Structure P

• Structure Q

• Structure R

• Structure S

Tags

NGSS.MS-LS1-6