Chapter 1 key words

Question 1

Organism

Answer 1

A living thing

Question 2

Movement

Answer 2

An action by an organism or part of an organism causing a change of position or place

Question 3

Respiration

Answer 3

The chemical reaction in cells that break down turn glucose and oxygen into water, carbon dioxide, and energy for metabolism

Question 4

Metabolism

Answer 4

chemical reactions that take place in living organisms

Question 5

Sensitivity

Answer 5

The ability to detect and respond to changes in the internal or external environment

Question 6

Growth

Answer 6

A permanent increase in size and dry mass

Question 7

ry

Question 8

Dry mass

Answer 8

The mass of an organism after it has been killed and all the water removed from it

Question 9

R

Reproduction

Answer 9

The process that makes more of the same kind of organism

Question 10

Excretion

Answer 10

The removal of waste products of metabolism and excess substances

Question 11

Nutrition

Answer 11

The taking in of materials for energy, growth, and development

Question 12

Species

Answer 12

A group of organisms that can produce fertile offspring

Question 13

Fertile/infertile

Answer 13

Able to reproduce/not able to reproduce

Question 14

Genus

Answer 14

A group of species that share similar features and a common ancestor

Question 15

Organic substances

Answer 15

substances whose molecules contain carbon, and are made by living things

Question 16

Chlorophyll

Answer 16

Green pigment that absorbs energy from light to perform photosynthesis. Found in chloroplasts.

Question 17

Cellulose

Answer 17

A carbohydrate made up of fibers in a crisscrossing pattern, makes up the cell wall of plants

Question 18

Hyphae

Answer 18

Microscopic filaments, made of cells linked in a long line, that make up the main body of a fungus

Question 19

Decomposers

Answer 19

Organism that break down organic substances outside their bodies and release the nutrients for other organisms to use

Question 20

Pinna

Answer 20

Flap on the ouside of the body that directs sound into the ear

Question 21

Placenta

Answer 21

An organ that connects the growing fetus to its mother

Question 22

Mammary glands

Answer 22

Organs which produce milk to feed young

Question 23

Exoskeleton

Answer 23

Supportive structure on the outside of the body

Question 24

Terrestrial

Answer 24

Living on land

Question 25

Vestigial

Answer 25

Evolutionarily obsolete