Biology 22-23 Final

Which helps maintain a dog’s homeostasis?

• eating

• hunting

• sleeping

• panting

Which defines a hypothesis? 

• accepted idea

• educated guess

• observed inference

• testable explanation

The basic unit of structure for all living things is called a

• molecule

• cell

• tissue

• organism

A theory that states that:

(1) organisms are made of one or more cells;

(2) cells are the basic unit of life;

(3) cells come only from other cells

• Cell Theory

• Cell Law

• Theory of Evolution

• Law of Thermodynamics

a cell without a nucleus or other membrane-bound organelles

• Prokaryotic Cell

• Eukaryotic Cell

• Animal Cell

• Plant Cell

Which is an example of mutualism?

• a peacock courting and mating with a peahen

• crayfish and minnows resting under the same rock

• a fish protecting a shrimp, who builds a burrow for the pair to share

• two snake species with similar markings advertising their toxic venom

Which organelle produces protein for a cell?

• endoplasmic reticulum

• nucleus

• Golgi apparatus

• ribosome

Which organelle is called the "powerhouse of the cell"?

• nucleus

• mitochondria

• vesicle

• ribosome

Which of the following statements are principles of the cell theory? Select all that apply.

• Cells are the basic unit of life.

• All living organisms are composed of cells.

• Cells come from preexisting cells.

• Cells contain membrane-bound organelles.

• Cells contain DNA and a plasma membrane.

The central structure that defines the cell is called the

• ribosome

• vacuole

• mitochondria

• nucleus