A variety of microorganisms live as symbionts in the human digestive tract. What determines whether their relationship with the human is parasitic or mutualistic?

whether their actions harm or benefit the human host

whether or not they gain energy from food that the human eats

their reproductive rate compared to the replication rate of human cells

their size compared to human cells

A population of seals live along the rocky shores of the northern coast of California. The seals hunt and eat fish that they catch in the water. As the population increases in size, which of these events becomes more likely to occur?

Competition for food acts to slow the growth rate of the population.

The seal population expands onto land, and the growth rate continues to increase.

A severe storm or a tidal wave acts to reduce the seal population by 25 percent.

Infectious diseases stop spreading through the population as the seals develop resistance to them.

Camille notices that the leaves of her pothos plant are drooping this morning. The leaves were not droopy yesterday. She decides the plant needs to be watered. What had Camille just done?

made an inference based on past experience and observation

calculated the probability of the plant's ability to survive without water

devised a controlled experiment about the effect of water on plant leaves

formed a hypothesis based on quantitative data she has collected

What property of a water molecule allows hydrogen bonds to form among adjacent molecules?

the polarity of the molecule, which involves a slightly negative oxygen atom and slightly positive hydrogen atoms

the strong covalent bonds that hold the oxygen atom to each hydrogen atom

the ionic bonds that form after the molecule separates into a hydroxide ion (OH – ) and hydrogen ion (H + ).

the small size of the two hydrogen atoms compared to the oxygen atom.

What is one way below that we can reduce the use of fossil fuels

Bike to school instead of driving

Reduce trash generation by recycling more.

Install a more efficient showerhead and faucet to decrease her water usage.

Using the food web what would happen if the eagle became extinct?

The frog population would increase.

The frog population would decrease.

The butterfly population would increase.

The snake population would decrease.

Which of the following would be the most likely effect, if there were a sudden increase in the cricket population?

There would be a decrease in the grass/flowers population.

There would be a decrease in the small bird population.

There would be a decrease in the mice population.

There would be an increase in the grass/flowers population.

Biotic factors are ___________.

non-living parts of an ecosystem

things that once were alive, but now are dead

not important parts of ecosystems.

Several different amino acids join together to form a protein. How do any two types of amino acids differ from one another?

the chemical structure of the R group in the molecule

the number of amino groups in the molecule

the number of carboxyl groups in the molecule

the number of chemical bonds formed by the central carbon atom

Midterm Review (25)

Quiz

•

Biology

•

9th - 12th Grade

•

Practice Problem

•

Medium

•

NGSS

MS-LS1-6, MS-LS2-1, MS-LS2-4

+9

Standards-aligned

Janine Dolce

Used 22+ times

FREE Resource

32 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the effect of an enzyme on the energy of a chemical reaction?

Enzymes increase the free energy of the products.

Enzymes decrease the free energy of the reactants.

Enzymes decrease the difference in energy between products and reactants.

Enzymes decrease the activation energy of the reaction.

Tags

NGSS.HS-PS1-5

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What BEST describes the role of light in the overall process of photosynthesis?

Light provides the energy for breaking apart sugars into small molecules.

Light provides the energy for assembling small molecules into sugars

Light accepts the energy that is released by small molecules.

Light accepts the energy that is released by sugars

Tags

NGSS.MS-LS1-6

NGSS.MS-LS1-7

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Choose the correct macromolecule to monomer

Iipid- sugar

Carbohydrate- amino acids

Lipid- fatty acids

nucleic acid- sugar

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

An example of a protein is:

sugar

enzyme

cell membrane

DNA

Tags

NGSS.MS-LS3-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Which type of macromolecule has the function of storing and transmitting hereditary or genetic information

Carbohydrates

Lipids

Protein

Nucleic Acids

Tags

NGSS.MS-LS3-1

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The process in which plants allow evaporation is called

condensation

transpiration

precipitation

runoff

Tags

NGSS.MS-ESS2-1

NGSS.MS-ESS2-4

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

The reactants of photosynthesis are:

Carbon dioxide & water

sugar & Oxygen

Oxygen and Nitrogen

Sugar & carbon dioxide

Tags

NGSS.MS-LS1-6

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Midterm Review (25)

32 questions

What is the effect of an enzyme on the energy of a chemical reaction?

What BEST describes the role of light in the overall process of photosynthesis?

Choose the correct macromolecule to monomer

An example of a protein is:

Which type of macromolecule has the function of storing and transmitting hereditary or genetic information

The process in which plants allow evaporation is called

The reactants of photosynthesis are:

The cells of all organisms contain DNA. In cells of which of the following groups is the cellular DNA enclosed in a nucleus?

e following structures are typically present in both plant and animal cells?

After her run, Aisha felt thirsty. Thirst was her body’s way of telling her she needed more water to maintain _____.

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