Organism Structures and Functions

What sort of evidence must be gathered to support the idea that all living things are composed of cells?

• Comparisons should be made between non-living things and living things to determine any similarities in their structure.

• Samples of many kinds of living things should be examined under a microscope to identify the presence of cells.

• The functions of cells from many different living things should be monitored to see if they are identical.

• Non-living things should be examined to verify that the smaller parts of which they are composed are not cells.

Tags

NGSS.MS-LS1-1

Students conducted an investigation to provide evidence to support the idea that trees were made up of different kinds of cells. Which of the following provides evidence which would support this idea?

• Samples taken from different parts of any tree all contained cells.

• Cells from different parts of a single tree had varying structures and functions.

• Cells collected from one tree were different than cells collected from another tree.

• One cell collected from a single tree was made up of several different parts.

Tags

NGSS.MS-LS1-1

Students examined the smaller structures of living things and non-living things. Which of the following observations provides evidence that the smaller parts of living things, and not the non-living things, are cells? Smaller parts of living things --

• are tightly packed together with almost no space between them

• carry out functions that sustain life such as respiration

• are uniform in size and structure

• cannot be seen with the unaided eye but require a microscope

Tags

NGSS.MS-LS1-1

What is a way in which scientists can determine if a newly discovered object should be classified as living or nonliving?

• guess

• look for cells

• use a microscope

• count how many organisms

Tags

NGSS.MS-LS1-1

Organisms that consist of many cells

• cell

• unicellular

• multicellular

• organism

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-3

Which adaptation of the snowshoe hare provides warmth and camouflage in its cold and snowy environment?

• Long, flexible ears

• Large, brown eyes

• Thick, white fur

• Wide, strong feet

Which structural adaptation of a mountain goat would be an advantage for moving around on rocky ground?

• big ears

• sharp horns

• thick fur

• hard hooves

An adaptation that some plants have for surviving dry conditions is -

• producing waxy coating on stems and leaves

• changing colors of leaves in the fall

• having a long growing season

• growing tall and having many large leaves

How does the giraffes long neck help it survive in the African grasslands? This structure functions to help the giraffe -

• run very quickly

• reach tree branches

• drink from ponds

• hide from predators

Tags

NGSS.MS-LS4-4

What adaptation does a bear have that allows it to survive in a cold environment?

• Small ears

• Large teeth

• Hibernation

• Sharp claws

Tags

NGSS.MS-LS4-4