Unit 1 Biology

Which characteristic of living things is BEST shown by vultures feeding on a carcass?

Cells that do not contain a true nucleus are called _______ cells.

An organ system is a group of organs that

A group of cells that work together perform a similar function is called a(n)

Over a period of years, insect pests become resistant to insecticides, thus demonstrating

Which of the following molecules is responsible for inheritance?

Cell specialization in multicellular organisms allows cells to

What statement best explains why birds fly south for winter?

A gecko might move from a cool shady spot to a warm sunny spot because

The process by which organisms keep their internal conditions relatively stable is called

Hundreds of tiny boxes are visible when a slice of plant is under the microscope, demonstrating

Changes within organisms over time allow species to adapt to changing environments is

The cells of multicellular organisms are often

Life's basic unit of structure and function is the

An inherited trait that helps the organisms survive and reproduce in its environment is