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Midterm Review

Total questions: 52

Worksheet time: 39mins

Name
Class
Date
1.
What step does every scientific experiment begin with?
a)
hypothesis
b)
question/problem
c)
procedures
d)
conclusion
2.
A series of steps used by scientists to solve a problem or answer a question. 
a)
scientific method
b)
recipe
c)
data collection
d)
metric system
3.
This variable in an experiment is the one being changed by the scientist. 
a)
dependent variable
b)
independent variable
c)
data
d)
control group
4.
If you increase the amount of spinach you eat, then you will increase the iron in your blood. 
What's the dependent variable?
a)
increase the amount of iron in your blood
b)
spinach you eat
5.
If I listen to Mr. Castro's instructions, then I will have less accidents in the lab. What is the independent variable?
a)
Yes
b)
Maybe
c)
Listening or not listening to instructions
d)
Likelihood of having an accident in lab 
6.

What is the correct order for this food chain?

a)

Owl, Mouse, Grasshopper, Grass

b)

Grass, Mouse, Owl, Grasshopper

c)

Grass, Owl, Grasshopper, Mouse

d)

Grass, Grasshopper, Mouse, Owl

7.

What do herbivores eat?

a)

Animals

b)

Plants and Animals

c)

Plants

d)

Dead Animals

8.

Which of these organisms is the producer?

a)

Owl

b)

Mouse

c)

Grasshopper

d)

Grass

9.

What do omnivores eat?

a)

Animals

b)

Plants and Animals

c)

Plants

d)

Dead Animals

10.

Place the levels of environment in the correct order.

a)

biome, biosphere, population, organism, ecosystem,community

b)

organism, ecosystem, biosphere, population, community, biome

c)

organism, population, community, ecosystem, biome, biosphere

d)

population, community, organism, biome, ecosystem, biosphere

11.

Group of the same species.

a)

Community

b)

Ecosystem

c)

Population

12.

What type of relationship is this?

a)

parasitism

b)

mutualism

c)

commensalism

d)

competition

13.

symbiotic relationship in which both organisms benefit

a)

competition

b)

mutualism

c)

predation

d)

commensalism

14.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
15.

symbiotic relationship in which both organisms benefit

a)

competition

b)

mutualism

c)

predation

d)

commensalism

16.
Organisms that breaks down and absorbs nutrients from dead organisms 
a)
consumer
b)
trophic level
c)
decomposer
d)
species
17.
An illustration that uses arrows to show the MANY possible directions in which matter and energy can pass through the organisms in an ecosystem.
a)
Food chain
b)
Food web
c)
Energy Pyramid
d)
Succession Map
18.
What is a producer?
a)
an organism that gets energy from eating other organisms
b)
an organisms that uses sunlight to make its own food
c)
an organism that gets energy from eating dead organisms, non-living material or waste
d)
an organism that uses chemical energy to make its own food
19.

A new species of snake was introduced to a tropical region. Scientists then noticed a steady decline in the presence of field mice and an increase in the number of snakes. Which of these is the most likely explanation about why the population size of each animal changed?

a)

The snakes introduced to the region dominated the habitat, forcing the mice to find another place to live.

b)

The mice became prey to the introduced snakes, allowing the snake population to increase but decreasing the mice population.

c)

The snakes introduced to the region competed with the mice for food, allowing the snake population to increase but decreasing the mice population.

d)

The people in the surrounding area set traps that killed the mice, allowing the snakes to live without any predators and therefore to increase in number.

20.

The highest concentration of life exists in the top 200 meters of ocean water. What is the most important factor that influences the concentration of life?

a)

amount of gases at the surface

b)

amount of nutrients in the water

c)

large number of predators at lower depths

d)

amount of sunlight

21.
During which stage do clouds form?
a)
condensation
b)
evaporation
c)
precipitation
22.
Which stages does liquid water from the ocean turn into water vapor?
a)
condesantion
b)
evaporation
c)
precipitation
d)
run off
23.
Which stage does ground water try to return to the ocean or soak into the ground?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
24.
Which stage does the #2 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
25.
Which stage does the #3 show in the diagram?
a)
condensation
b)
evaporation
c)
precipitation
d)
run off
26.
What is the water cycle?
a)
the 3 forms of water
b)
the movement of water on, above, or below the surface of the Earth
c)
when water melts
d)
when clouds form
27.
Which is the opposite of condensation?
a)
runoff
b)
evaporation
c)
precipitation
d)
transpiration
28.
What does NOT produce carbon dioxide?
a)
Photosynthesis
b)
Burning Fossil Fuels
c)
Animal respiration
d)
Plants decaying
29.
Which of the following removes carbon from the atmosphere?
a)
Combustion
b)
Respiration
c)
Photosynthesis
d)
Death
30.
Respiration is the process by which animals take in _____ and release _____. 
a)
photosynthesis, air
b)
carbon, oxygen
c)
oxygen
d)
oxygen, carbon dioxide
31.
What are the products of photosynthesis?
a)
water and carbon dioxide
b)
oxygen and glucose
c)
oxygen and carbon dioxide
d)
oxygen and water
32.
Which gas is removed from the atmosphere during photosynthesis?
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
carbon dioxide
33.
The main source of energy for all life comes from ____.
a)
the Earth
b)
the moon
c)
the sun
d)
the food we eat/make
34.
What is the "waste" gas (product) produced during photosynthesis?
a)
oxygen
b)
nitrogen
c)
helium
d)
hydrogen
35.
The purpose of cellular respiration is to produce ?
a)
energy
b)
oxygen
c)
sugar
d)
protein
36.
The waste gas given off by cellular respiration is?
a)
oxygen
b)
carbon dioxide
c)
nitrogen
d)
methane
37.

The basic building blacks from which all living organisms are made are

a)

cells

b)

DNA

c)

chromosomes

d)

Amoeba

38.

It is true, not all cells have a true nucleus, but all cells must have some sort of

a)

DNA

b)

Cytoplasm

c)

Osmosis

d)

Call Wall

39.

This part of the cells controls what moves in and out

a)

cell wall

b)

cell membrane

c)

Cytoplasm

d)

organelles

40.

Many celled organisms are called

a)

unicellular

b)

multicellular

c)

bicellular

d)

tricellular

41.

Single celled organisms are called

a)

unicellular

b)

multicellular

c)

bicellular

d)

tricellular

42.

Which of the following statements is part of the cell theory?

a)

All living things are made up of one or more cells.

b)

Cells are the basic units of living things.

c)

All cells come from pre-existing cells.

d)

All of these

43.

According to the information in the given chart, what type of cell is cell X?

a)

bacteria cell

b)

plant cell

c)

animal cell

d)

prokaryotic cell

44.

Ian is looking at a cell using a microscope. He sees a nucleus and a large vacuole in the center of a cell. What type of cell is he most likely looking at?

a)

animal cell

b)

plant cell

c)

blood cell

d)

human cell

45.

These are

a)

plant cells

b)

animal cells

c)

bacteria cells

46.

Which of the following is true about cells?

a)

Cells have specialized components that perform different, specific functions.

b)

A cell’s components are all identical and perform the same function.

c)

Cells have specialized components that all perform the same functions.

47.

Which of the following statements is true?

a)

All multicellular organisms have skeletal systems.

b)

All multicellular organisms have specialized cells.

c)

All multicellular organisms have circulatory systems.

d)

All of these

48.

What are the 8 levels of Classification in order?

a)

Domain, Kingdom, Phylum, Class, Order, Family, Genus, Species

b)

Order, Domain, Phylum, Class, Family, Genus, Species, Kingdom

c)

Family, Domain, Genus, Kingdom, Phylum, Class, Order

d)

Class, Family, Kingdom, Genus, Phylum, Order, Domain

49.

What is the smallest and most specific group in the classification system?

a)

species

b)

domain

c)

kingdom

d)

Genus

50.

What is the largest and most general group that an organism is classified into?

a)

Domain

b)

Kingdom

c)

Species

d)

Family

51.

In a scientific name, what group does the FIRST name identify?

a)

Genus

b)

Species

c)

Kingdom

d)

Domain

52.

In a scientific name, what does the SECOND name identify?

a)

Genus

b)

Species

c)

Kingdom

d)

Domain

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