Use LEFT and RIGHT arrow keys to navigate between flashcards;
Use UP and DOWN arrow keys to flip the card;
H to show hint;
A reads text to speech;
25 Cards in this Set
- Front
- Back
|
Compact Bone |
is the hard outer layer of bone. |
|
|
Spongy Bone |
is the interior region of the bone. |
|
|
Neurons |
the basic unit of the nervous system. |
|
|
Reflexes |
automatic movements in response to a signal |
|
|
Hormones |
chemical signals released by the organs of the endocrine system |
|
|
Reproduction |
the process by which new organisms are produced. |
|
|
Gametes |
Human reproductive cells |
|
|
Sperm |
Male gametes |
|
|
Ova |
Female gametes |
|
|
fertilization |
the process by which a sperm fertilizes an egg. |
|
|
zygote |
the cell that is formed when a sperm fertilizes an egg. |
|
|
Skeletal System |
protects the organs and works with muscles to allow bodily movement |
|
|
Eco System |
all the living and non living things in an area. |
|
|
Biotic Factors |
living things in an ecosystem |
|
|
Abiotic |
non living things in an ecosystem |
|
|
Climate |
describes the average weather conditions in an area over time. |
|
|
Atmosphere |
the layer of gas that surrounds the earth |
|
|
Soil- is it abiotic or biotic? |
abiotic |
|
|
What would happen to humans if we had no atmosphere? |
humans would not be able to survive |
|
The Sun is |
the source of energy on earth. |
|
|
Temperature is abiotic or biotic factor? |
abiotic factor p.226 |
|
|
Water |
all life on earth requires water p. 226 |
|
|
What gasses make up the atmosphere? |
|
|
What is the difference in the snow in December versus the snow in April? |
45.3 in diff |
|
|
N/A |
N/A |
