NC Biology EOC

The cell theory is...

• All living organisms are composed of at least one cell.

• building blocks of life. All cells come from

• All of the above

• Cells arise only from previously existing cells.

Tags

NGSS.MS-LS1-1

Which part of the cell is often called "the brain of the cell"?

• nuclear membrane

• endoplasmic reticulum

• nucleus

• mitochondria

Tags

NGSS.MS-LS1-2

A coyote captures, kills, and eats a rabbit. What type of symbiotic relationship is this?

• mutualism

• commensalism

• parasitism

• predation

The flower of the yucca plant provides the only location where the yucca moth can lay her eggs. In the process, the moth pollinates the yucca flower. What type of symbiotic relationship is this?

• mutualism

• commensalism

• parasitism

• predation

Tags

NGSS.MS-LS1-4

A tapeworm lives in the intestines of a dog. It absorbs food the dog has eaten and grows larger in the process. The dog becomes weaker from malnutrition. What type of symbiotic relationship is this?

• mutualism

• commensalism

• parasitism

• predation

Which process is used to make mRNA from the DNA in the nucleus?

• transcription

• translation

• replication

In RNA, Uracil pairs with ______. 

• cytosine

• adenine

• guanine

• thymine

Which statement describes an autotroph?

• It is an organism that makes its own food.

• It is an organism that eats other organisms.

• It is an organism that eats decaying matter.

• None of the above.

Which of these phrases describes the biotic factors of an ecosystem?

• the number of individual organisms in each trophic level of an ecosystem

• any living part of an environment

• an organism that eats only meat

Tags

NGSS.MS-LS2-2

NGSS.MS-LS2-4

Which of the following is the smallest unit of life that can carry out all life functions?

• the mitochondria

• the vacuoles

• the nucleus

• the cell

Tags

NGSS.MS-LS1-1

NGSS.MS-LS1-2