Save Question 89 (1 point) A species is defined as: Question 89 options: organis

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Question 89 (1 point)

A species is defined as:

Question 89 options:

organisms that live together.

organisms that live in the same area at the same time.

a group of similar organisms whose members freely interbreed with one another.

all of the organisms that live together in an area, plus the physical environment that they live in.

all organisms at a given trophic level within a particular community.

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Question 90 (1 point)

Light is the energy source for which process?

Question 90 options:

respiration

glycolysis

mitochondria

chemosynthesis

None of these choices

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Question 91 (1 point)

Which of the following organisms are capable of cellular respiration?

Question 91 options:

green plants

bacteria

carnivores

algae

All of these choices are correct

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Question 92 (1 point)

Carbohydrates are not:

Question 92 options:

stored potential energy.

made mostly of nitrogen and carbon.

broken down by cellular respiration.

made by producers.

used by decomposers.

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Question 93 (1 point)

Which of the following is a producer?

Question 93 options:

nutrient-rich water

a rabbit

an alga

a fungus

a saprotroph

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Question 94 (1 point)

Decomposers are:

Question 94 options:

bacteria and fungi.

consumers.

saprotrophs.

heterotrophs.

All of these choices are correct

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Question 95 (1 point)

Energy cannot be created or destroyed, but it can be converted from one form to another…

Question 95 options:

second law of thermodynamics

first law of thermodynamics

theory of relativity

first law of centrifugation

energy transformation

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Question 96 (1 point)

What category would carnivores fall into?

Question 96 options:

heterotrophs

tertiary consumers

omnivores

secondary consumers

tertiary consumers and secondary consumers

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Question 97 (1 point)

What are the monomer 'building blocks' that make up proteins?

Question 97 options:

A.    Monosaccharides

B.    Glycerol molecules

C.    Amino acids

D.    Fatty acids

E.    Cholesterol molecules

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Question 98 (1 point)

Consider some sugar dissolved in water. Which term best describes the water?

Question 98 options:

A.    Solute

B.    Solvent

C.    Product

D.    Reactant

E.    None of the above

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Question 99 (1 point)

What kind of bond holds two water molecules to each other?

Question 99 options:

A.    Polar covalent bond

B.    Hydrogen bond

C.    Ionic bond

D.    Non-polar covalent bond

E.    None of the above

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Question 100 (1 point)

Each of the following items is a lipid except

Question 100 options:

A.    Cholesterol

B.    Cellulose

C.    Triglyceride

D.    Phospholipid

E.    Steroid

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Question 101 (1 point)

Temperature is a measure of

Question 101 options:

A.    The potential energy in a substance

B.    How fast the molecules in a substance are moving

C.    The energy lost from a substance to its surroundings

D.    How much heat is being absorbed by a substance

E.    All of the above

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Question 102 (1 point)

Select the statement that is ***incorrect***

Question 102 options:

A)    Cells contain either DNA or RNA, never both

B)    Cell are the smallest living things

C)    Most cells can divide to produce new cells

D)    All living organisms are composed of at least one cell

E)    All cells are either prokaryotic or eukaryotic

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Question 103 (1 point)

Students are designing an experiment to see if changes in pH have an impact on the action of enzymes. Which is the best hypothesis?

Question 103 options:

a. Will an acidic pH have an effect on enzyme action?

Will an acidic pH reduce the action of an enzyme?

c. The pH of the solution along with the temperature of the solution will have an effect on the reaction.

d. A change in pH will produce fewer bubbles of oxygen.

e. A pH above 7 will produce fewer bubbles of oxygen than a pH at or below pH 7.

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Question 104 (1 point)

The correct, chemically balanced equation for photosynthesis is:

Question 104 options:

12CO2 + 6H2O + RADIANT ENERGY -> C6H12O6 + 12O2.

6CO2 + 12H2O + RADIANT ENERGY -> C6H12O6 + 6H2O + 6O2.

12O + C6H12O6 + 6H2O -> 6CO2 +12H2O + ENERGY.

12O2 + C6H12O6 + 12H2O -> 6CO2 + 12H2O + ENERGY.

6O2 + C6H12O6 + 6H2O -> 6CO2 + 12H2O + ENERGY.

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Question 105 (1 point)

The correct, chemically balanced equation for cellular respiration is:

Question 105 options:

12CO2 + 6H2O + RADIANT ENERGY -> C6H12O6 + 12O2.

6CO2 +12H2O + RADIANT ENERGY ->C6H12O6 + 6H2O + 6O2.

C6H12O6 + 12 H2O -> 6CO2 +12H2O + ENERGY.

12O2 + C6H12O6 + 12H2O -> 6CO2 + 12H2O + ENERGY.

6O2 + C6H12O6 + 6H2O -> 6CO2 + 12H2O + ENERGY.

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Question 106 (1 point)

A secondary consumer would eat:

Question 106 options:

tertiary consumers.

fungi.

bacteria.

herbivores.

lions.

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Question 107 (1 point)

A primary consumer would eat:

Question 107 options:

secondary consumers.

plants.

Bacteria.

herbivores.

rabbits.

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Question 108 (1 point)

Decomposers provide mineral nutrients for:

Question 108 options:

heterotrophs.

autotrophs.

the second trophic level.

the third trophic level.

omnivores

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Question 109 (1 point)

A chemotherapy drug affects the enzyme DNA polymerase. In which part of the cell cycle does it inhibit cell division?

Question 109 options:

A)    Metaphase

B)    S phase

C)    G1

D)    Cytokinesis

E)    Prophase

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Question 110 (1 point)

The majority of climate scientists believe that the current change in climate is caused predominantly by ________.

Question 110 options:

a) an enhancement of the greenhouse effect

b) a decreased reliance on fossil fuels for energy

c)    a thinning of the ozone layer

d)    a melting of the polar ice caps

e)    an increase in solar radiation

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organisms that live together.

organisms that live in the same area at the same time.

a group of similar organisms whose members freely interbreed with one another.

all of the organisms that live together in an area, plus the physical environment that they live in.

all organisms at a given trophic level within a particular community.

Explanation / Answer

Question 89- its ans is - a group of similar organisms whose members freely interbreed with one another.(they can reproduce by sexula reproduction method they will also share characters at morphological as well as physiological level.)

Question 90- we know that respiration use oxygen, glycolysis is a process where glucose change into pyruvate at cytoplasm while further processes are take place in mitochondria. chemosynthesis use methane in place of light so none of the above answer is right.

Question 91- we know cellular respiration is a series of different process to breakdown larger biomolecule and produce energy. they take place in various orgenalls of the cells but basic purpose of respiration to produce energy it can be aerobic or anaerobic so here we can say all of these choices are correct.

Question 92- Carbohydrates made from C, H O they breakdown by cellular respiration they can be be degradable by bacteria, made by producer they also stored energy but not contain N so its correct answer is made mostly of nitrogen and carbon.

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