BIOLOGY BASICS

DNA is located within the ___________ of a cell.

The study of heredity is known as

Which human activity most directly causes a significant increase in the amount of carbon dioxide in the atmosphere?

Throughout time, humans have created a variety of dog breeds by using a process known as

A group of organisms of the same species living in the same area at the same time is called?

The father of evolution, who developed the theory of natural selection, is

The basic unit of structure and function in living things is

Which group of organisms in an ecosystem breaks down dead material and recycle it back to the environment?

All living things need to maintain a stable internal environment, otherwise known as __________, in order to stay alive.

Which type of organism is also known as an autotroph because it can manufacture its own food?

Which disorder takes place when the immune system attacks a usually harmless environmental substance?

Which of the following is NOT a code letter associated with DNA?

Where in the human reproductive tract do sperm and egg unite (fertilization)?

Two kittens in a litter are genetically different from each other and from their parents due to

The basic building blocks of a protein are

Which component of blood helps to fight infection?

Humans have _______ chromosomes in all of their body cells.

Which life function is NOT necessary for an individual organism to stay alive?

The human body system that consists of glands and hormones is the

The organic compounds found in all living things that help to speed up chemical reactions are called