BIOLOGY TEST

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Bio U8 Practice Test 2 A

1.

2.

3.

Why is the shape of an enzyme important?

In secondary succession, what happens first?

A bird builds its nest in a tree. What type of relationship does the bird have with the tree?

The shape allows the reaction to go faster.

The shape allows the enzyme to make a new substrate.

The shape allows the enzyme to bind with a specific substrate.

The shape allows the enzyme to make products.

Wind brings lichens and mosses.

Small shrubs establish themselves.

Soil is built.

Grasses and other annual plants establish themselves.

symbiotic

commensalism

parasitism

mutualism

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4.

5.

6.

What is the name of the organization level missing from this picture?

A model of DNA is shown. What does the arrow indicate?

A snake with the genotype of TTPp mates with another snake with the genotype ttpp. What is the probability that their offspring will have the genotype Ttpp?

cell

organelle

molecule

tissue

nucleotide

phosphate group

nucleic acid

deoxyribose sugar

75%

25%

50%

16.5%

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7.

8.

9.

10.

In order for complicated, self-replicating DNA to form, what do some scientists hypothesize happened first?

Fungi in an ecosystem decompose matter. Why is this important?

Generally, the more genetic diversity a species has, the greater its chance for long-term survival. This is due to which of the following?

Cars burn fossil fuels. How might this result in climate change?

Enzymes formed first.

Polymerization of amino acids happened in cold climates.

DNA formed as a result of natural selection.

RNA formed first.

Fungi return nitrogen and phosphorous into the soil that plant roots can absorb.

Fungi help produce atmospheric oxygen.

Fungi return glucose to the soil that plant roots can absorb.

Fungi help reduce atmospheric carbon dioxide.

Greater genetic diversity allows individuals to evolve.

Greater genetic diversity allows the strongest individuals to survive.

Greater genetic diversity allows populations to evolve.

Greater genetic diversity allows for more adaptations for changing environments.

Burning fossil fuels increases atmospheric carbon levels.

Burning fossil fuels decreases atmospheric nitrogen levels.

Burning fossil fuels decreases atmospheric carbon levels.

Burning fossil fuels increases atmospheric nitrogen levels.

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11.

12.

Which of these molecules represents a lipid?

Support in a muscle cell is provided by the ___.

Golgi apparatus

rough ER

cytoskeleton

lysosome

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13.

14.

15.

Which statement is true about mitosis?

Cancer cells are often a result of the disruption of what process in cells?

Which organism are important in primary ecological succession?

Mitosis results in four identical daughter cells.

Mitosis results in two unique daughter cells.

Mitosis results in four unique daughter cells.

Mitosis results in two identical daughter cells.

homeostasis

respiration

negative feedback

natural selection

soil and lichen

grasses and mosses

shrubs and trees

moss and lichen

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16.

17.

18.

Corals are animals that live in reefs. Healthy corals are covered in algae, which do photosynthesis. Which type of relationship does coral have with algae?

Animals move to get their food. Which body systems help animals move to get food?

The honeycreeper is a bird native to Hawaii. Its beak is especially adapted to pollinate certain native plants. The Japanese white-eye is an invasive species that harbors a fungus that has no effect on the Japanese white-eye but is deadly to the Hawaiian honeycreeper. Which statement is most likely true?

mutualism

competition

producer

consumer

digestive and skeletal

skeletal and muscle

skeletal and nervous

muscle and digestive

The honeycreepers will adapt to the fungus.

Honeycreepers will suffer a mass extinction.

Birds in Hawaii will suffer a mass extinction.

Both the honeycreeper and the plants it pollinates will be in danger of extinction if the honeycreeper does not adapt to the fungus.

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19.

20.

Useful energy is made in which organelle?

What type(s) of organisms is missing from this food web?

mitochondria in animals

mitochondria in plants

mitochondria in plants and animals

chloroplast in plants

producers

decomposers

producers and decomposers

microorganisms

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21.

22.

23.

24.

What plant response causes a sunflower to face a window?

Meiosis creates gametes that have which of the following?

What is one similarity between photosynthesis and respiration?

Which of these statements about the fossil record supports evolutionary theory?

photosynthesis

phototropism

photoperiodism

geotropism

double the number of chromosomes

homologous chromosomes

diploid cells

half the number of chromosomes

They both use carbon dioxide as a reactant.

They both use carbon dioxide as a product.

They both convert energy to a useful form.

They both require light energy.

The fossil record shows punctuated equilibrium.

The fossil record shows gradualism.

Generally, older fossils are found in lower layers of the geologic column and newer, more complex organisms are found in upper layers.

Generally, newer fossils are found in lower layers of the geologic column and older, more complex organisms are found in upper layers.

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25.

26.

The fossil record shows long periods of time where species stay the same followed by rapid evolution. This is an argument for what hypothesis?

Thermophiles are archaebacteria that live near volcanic vents. How does a thermophile differ from a euglenoid, a type of protist that lives in extremely toxic water?

gradualism

mass extinction

punctuated equilibrium

natural selection

The euglenoid has DNA.

The euglenoid has organelles covered with a membrane.

The thermophile has a cell membrane.

The thermophile has flagella.

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27. Identify Creature Y using the dichotomous key.

Creature X

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Creature Y

1 - a. Organism has a small head - go to 2 b. Organism has a large head - go to 3

2 - a. Organism has a narrow body - go to 6 b. Organism has a round body - go to 7

3 - a. Organism has a narrow body - go to 4 b. Organism has a round body - go to 5

4 - a. Organism has a curly antennae - go to 9 b. Organism has a straight antennae - go to 17

5 - a. Organism has short arms - go to 18 b. Organism has long arms - go to 19

6 - a. Organism has a curly antennae - go to 11 b. Organism has a straight antennae - go to 12

7 - a. Organism has a curly antennae - Roundus tricurlus b. Organism has a straight antennae - go to 8

8 - a. Organism has spots - Roundus trispottis b. Organism has no spots - Roundus squintus

9 - a. Organism has round eyes - Narrowus trifurrus b. Organism has narrow eyes - go to 16

10 - a. Organism has round eyes - Roundus diheadfuzzus b. Organism has narrow eyes - Roundus difuzzus

11 - a. Organism has round eyes - go to 15 b. Organism has narrow eyes - Narrowus trispottis

12 - a. Organism has short arms - go to 13 b. Organism has long arms - go to 14

13 - a. Organism has fur - Narrowus difuzzus b. Organism has no fur - Narrowus bareus

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28.

29.

14 - a. Organism has spots - Narrowus longspottis b. Organism has no spots - Narrowus tippus

15 - a. Organism has a tail - Narrowus trifuzzus b. Organism has no tail - Narrowus quadspottis

16 - a. Organism has two feet - Narrowus curlus b. Organism has three feet - Narrowus squintflippus

17 - a. Organism has spots - Narrowus dispottis b. Organism has no spots - Narrowus fuzzflippus

18 - a. Organism has a curly antennae - Roundus bareus b. Organism has a straight antennae - Roundus puffus

19 - a. Organism has two feet - go to 10 b. Organism has three feet - Roundus headfuzzus

Which stage of mitosis is shown in the picture?

What type of tissue forms the woody portion of an oak tree?

Roundus tricurlus

Roundus bareus

Roundus puffus

Roundus squintus

metaphase

prophase

telophase

anaphase

primary xylem

secondary xylem

secondary phloem

primary phloem

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30. Which two species are the most closely related?

shrew and wombat

beaver and elephant

shrew and rabbit

bat and manatee