7th Grade Science-End of Year Review

Question 1

What are genes?

Accepted Answer

Strands of DNA

Question 2

An individual that belongs to a species

Accepted Answer

organism

Question 3

A phenotype is........

Accepted Answer

the physical expression of a gene combination

Question 4

All are physical changes except...

Accepted Answer

Eggs cooking

Question 5

What is a Community?

Accepted Answer

Populations that live together on a Defined Area

Question 6

Define physical changes

Accepted Answer

New substance isn't formed

Question 7

Heterozygous

Accepted Answer

a pair of genes where one is dominant and one is recessive, a pair of genes that are different.

Question 8

Red blood cells transport....

Accepted Answer

Oxygen to your body cells?

Question 9

Biotic or Abiotic ?

Accepted Answer

Abiotic

Question 10

the scientific study of heredity

Accepted Answer

Genetics

Question 11

What percentage will have heterozygous genotypes?

Accepted Answer

50%

Question 12

People don't interact with ecosystems

Accepted Answer

False

Question 13

A food chain starts with the sun

Accepted Answer

True

Question 14

Groups on the periodic table are arranged

Accepted Answer

Vertically

Question 15

Which body systems are dependent upon each other?

Accepted Answer

ALL of them

Question 16

What is a food web

Accepted Answer

many food chains that are connected

Question 17

What two systems help the body move

Accepted Answer

Muscular and skeletal

Question 18

In which 2 systems of the human body does most gas exchange occur?

Accepted Answer

Respiratory & circulatory

Question 19

What percentage will have dominant homozygous genotypes?

Accepted Answer

0%

Question 20

what is a periodic table

Accepted Answer

a table of the chemical elements arranged in order of atomic

Question 21

Which system controls all other systems in the body?

Accepted Answer

Nervous System

Question 22

Periods in the periodic table are...

Accepted Answer

rows

Question 23

Organ systems in the human body...

Accepted Answer

All work together

Question 24

Ecosystems with a high biodiversity are able to...

Accepted Answer

Recover from changes!

Question 25

Who made the periodic table?

Accepted Answer

Dimitri Mendeleve

Question 26

Is sunlight the main source of all ecosystems ?

Accepted Answer

True

Question 27

Cells make up...

Accepted Answer

kidney, All of the above, Brain, Lungs

Question 28

Define chemical changes

Accepted Answer

Chemical means a new substance is formed

Question 29

A proton has?

Accepted Answer

positive charge

Question 30

The atoms that create water,H20 are?

Accepted Answer

hydrogen and oxogen

Question 31

Cells are the building block of ?

Accepted Answer

Life

Question 32

genotypes and phenotypes are the same thing

Accepted Answer

False

Question 33

Cells are...?

Accepted Answer

The smallest living

Question 34

Biotic or abiotic?

Accepted Answer

abiotic

Question 35

Biotic or abiotic?

Accepted Answer

Abiotic

Question 36

Heredity is...

Accepted Answer

passing of traits from parent to offspring

Question 37

Body systems are made up of different...

Accepted Answer

organs

Question 38

contains heredity material

Accepted Answer

nucleus

Question 39

Homozygous dominant could be referred to by?

Accepted Answer

HH

Question 40

What is an electron?

Accepted Answer

Negatively charged subatomic particle around the nucleus

Question 41

What do genes control

Accepted Answer

growth, size, shape, or apperance

Question 42

A neutron has _____ .

Accepted Answer

No charge

Question 43

Ecosystems go into communities, communities go into populations, populations go into...

Accepted Answer

species

7th Grade Science-End of Year Review

Questions 43

7th Grade Science-End of Year Review

Questions 43