Science 2.1-2.2

Question 1

cell

Answer 1

the smallest functional and structural unit of all living organisms, usually consists of a nucleus, cytoplasm, and a membrane.

Question 2

Homeostasis

Answer 2

the maintenance of a constant internal state in a changing environment.

Question 3

Sexual reproduction

Answer 3

reproduction in which the sex cells from two parents unite to produce offspring that share traits from both parents.

Question 4

Asexual Reproduction

Answer 4

reproduction that does not involve the union of sex cells and in which one parent produces offspring that are genetically identical to the parent.

Question 5

metabolism

Answer 5

the sum of all chemical processes that occur in an organism.

Question 6

producer

Answer 6

An organism that can make its own food by using energy from its surroundings.

Question 7

Consumer

Answer 7

an organism that eats other organisms or organic matter

Question 8

Decomposer

Answer 8

an organism that gets energy by breaking down the remains of dead organisms or animal wastes and consuming or absorbing the nutrients.

Question 9

protein

Answer 9

a molecule that is made up of amino acids and that is needed to build and repair body structures and to regulate the processes in the body.

Question 10

carbohydrate

Answer 10

a class of molecules that includes sugars, starches, and fiber; contains carbon, hydrogen, and oxygen.

Question 11

lipid

Answer 11

a fat molecule or a molecule that has similar properties; examples include oils, waxes and steroids.

Question 12

phospholipid

Answer 12

a lipid that contains phosphorus and that is a structural component in cell membranes

Question 13

ATP

Answer 13

a adenosine triphosphate, a molecule that acts as the main energy source for cell processes.

Question 14

Nucleic acid

Answer 14

a molecule made up of subunits called nucleotides.

Question 15

water

Answer 15

makes up 70% of your cells

Question 16

Air

Answer 16

is a mixture of gasses, mostly nitrogen and oxygen, with some other gasses like carbon dioxide.

Question 17

Some organisms can live without air are called:

Answer 17

anaerobic :)

Question 18

water H2O

Answer 18

is made up of hydrogen and oxygen.

Question 19

A Place to live

Answer 19

often organisms compete for the best places to live. Space is limited, especially space that includes food, water, and other necessities.