Science 7 Quarter 2 Examination Reviewer Part 3

Welcome to the comprehensive second-quarter multiple-choice examination reviewer designed to sharpen the skills and knowledge of students across grades 7 to 10. This meticulously crafted resource aims to provide a thorough understanding of the diverse subjects covered during this quarter.

This reviewer encompasses a wide array of subjects and topics that are fundamental to each grade level's curriculum. From the foundational concepts in mathematics to the intricacies of language arts, sciences, and social studies, this resource aims to aid students in reinforcing their understanding and mastering the essential concepts.

Science 7 Quarter 2 Examination Reviewer Part 3

Choose the letter of the best answer in each questions.

1. What do you call to the part of the flower that supports or holds the anther up?

A. Filament

B. Pollen

C. Stamen

D. Style

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Option D

2. Which of the following parts of the flower refers to the sex cells produced by the ovary?

A. Anther

B. Ovules

C. Style

D. Pollen grains

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Option D

3. Which of the following does NOT belong to the group?

A. Filament

B. Ovary

C. Stigma

D. Style

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Option A

4. In what organ of the plant does the reproduction occurs?

A. Flower

B.Leaf

C. Roots

D. Stem

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Option B

5. Which of the following organisms uses pollination as its mode of sexual reproduction?

A. Frog

B. Rabbit

C. Spirogyra

D. Gumamela flower

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Option A

6. Which of the following refers to the male reproductive part of a flower?

A. Petal

B. Pistil

C. Sepal

D. Stamen

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Option DA/p>

7. Which species can produce offspring that are genetically different from their parents?

A. A species that has few variations

B. A species that reproduces sexually

C. A species that reproduces asexually

D. A species that competes with a similar species

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Option A

8. In what part of the flower are the pollen grains produced?

A. Anther

B. Filament

C. Ovary

D. Stigma

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Option A

9. Which of the following statement/s differentiate/s asexual from sexual reproduction?

I. In sexual reproduction, two parent cells are needed to produce new individual.

II. In asexual reproduction, only one parent cell is needed to produce new individual.

III. In sexual reproduction, only one parent cell involved, while in asexual reproduction, two parent cells are involved.

A. I and II

B. II and III

C. I and III

D. III only

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Option D

10. Alexander plants a group of seeds that all came from the same plants. When seeds grow and bloom, the resulting flowers are different sizes and colors. What can Alexander conclude from his experiment?

A. Alexander used soil that had other seeds in it.

B. The species of plants must reproduce sexually.

C. The species of plants must reproduce asexually.

D. The flowers changed colors because of its environment.

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Option A

11. Flowers are the reproductive organs of plants. How will you differentiate flowers from the reproductive organs of animals?

A. Flowers need pollinators like bees to reproduce; animals do not.

B. Flowers are shed from time to time; nothing is shed from animal

C. Flowers have male and female parts; animals have either male or female parts.

D. There is no difference between flowers and the reproductive organs of animals.

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Option C

12. Jhen was asked by her science teacher to give an example of an organism that can reproduce sexually. She answered yeast. Is Jhen correct about her answer?

A. No, because yeast needs one parent cell to reproduce.

B. Yes, because yeast needs one parent cell to reproduce.

C. No, because yeast needs two parent cells to reproduce.

D. Yes, because yeast needs two parent cells to reproduce.

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Option C

13. A sperm cell unites with an egg cell to form a zygote. Which process is taking place?

A. Asexual reproduction

B. Fertilization

C. Pollination

D. Vegetative propagation

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Option B

14. How would you compare sexual reproduction and asexual reproduction?

A.Asexual reproduction has many forms while sexual reproduction has only two.

B. Sexual reproduction produces offspring that are identical to the parent while asexual reproduction produces offspring that are not identical to the parent.

C. Asexual reproduction happens only in plants while sexual reproduction happens only in humans.

D. Sexual reproduction requires two parent cells to form an offspring while asexual reproduction needs only one parent cell to produce offspring.

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Option A

15. A plant needs water, radiant energy, minerals, oxygen, and carbon dioxide to live. How are these requirements needed by plants categorized?

A. Climate

B. Minerals

C. Biotic components

D. Abiotic components

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Option C

16. Which of the following represents an abiotic component of the environment?

A. Flowing lava

B. Cat nursing its young

C. Sprouting mongo seeds

D. Growing grasses on mountain

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Option B

17.Which of the following are needed in setting up an aquarium as a mini ecosystem?

A. A number of fish and water only

B. Combination of water, sand, soil and light

C. Population of fish, snails, and plants only

D. Communities of different species of organisms, water, sand, soil, and sunlight

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Option A

18. On which abiotic factors would varieties of fish and seaweeds rely for their survival?

A. Insects and sun

B. Water and corals

C. Water and temperature

D. Solid particles and temperature

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Option A

19. Which of the following is an abiotic factor produced by plants?

A. Flower

B. Fruit

C.Oxygen

D. Stem

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Option D

20. Which ecosystems below would you find the highest rate of photosynthesis?

A. Aquarium which contained water, fish, and plants

B.Fish pond which comprised of mud fish and water lily

C. Forest surrounded by tall trees, ferns, shrubs and animals

D. Lake comprises of different varieties of fish, alligators, and water cabbage

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Option D