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Eighth Grade (Grade 8) Development and Reproduction Questions

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Grade 8 Development and Reproduction
The type of reproduction in which a cell duplicates exactly (for the most part) is
  1. sexual.
  2. asexual.
  3. homozygous.
  4. heterozygous.
Grade 8 Development and Reproduction
Sexual reproduction involves the creation of a new organism from
  1. a single parent.
  2. budding.
  3. two parents.
  4. splitting.
Grade 8 Development and Reproduction
What happens during budding?
  1. An egg cell is fertilized by a sperm cell, and the resulting cell develops into an offspring that is not identical to either parent.
  2. A new plant develops from a modified stem or root taken from a parent plant to form a genetically identical offspring.
  3. An organism produces a single, specialized cell that develops into a new, multicellular organism with the same genetic information as the parent.
  4. A new organism begins as a growth on the outside surface of the parent organism, and it eventually separates from the parent, creating a genetically identical individual.
Grade 8 Development and Reproduction
Humans reproduce asexually.
  1. True
  2. False
Grade 8 Development and Reproduction
What is a developing human from the two-cell stage through the eighth week of pregnancy?
  1. fetus
  2. placenta
  3. zygote
  4. embryo
Grade 8 Development and Reproduction
What is fragmentation?
  1. a unicellular plant breaking a leaf during photosynthesis
  2. a parent organism independently forming separate parts
  3. the breaking of glass in an ecosystem
  4. the separation of fragmented cells
Grade 8 Development and Reproduction
Which statement describes what happens during budding?
  1. An egg cell is fertilized by a sperm cell, and the resulting cell develops into an offspring that is not identical to either parent.
  2. A new plant develops from a modified stem or root taken from a parent plant to form a genetically identical offspring.
  3. An organism produces a single specialized cell that develops into a new multicellular organism with the same genetic information as the parent.
  4. A new organism begins as a growth on the outside surface of the parent organism, and it eventually separates from the parent, creating a genetically identical individual.
Grade 8 Development and Reproduction
With sexual reproduction, offspring cannot be identical to a parent.
  1. True
  2. False
Grade 8 Development and Reproduction
Only humans and other mammals produce sexually.
  1. True
  2. False
Grade 8 Development and Reproduction
There are nonliving organisms that can produce asexually.
  1. True
  2. False
Grade 8 Development and Reproduction
Jin observes an organism he has never seen before. He notices that the organism can undergo both sexual and asexual reproduction. Under what environmental conditions is the organism most likely to reproduce sexually?
  1. conditions that are favorable and constant
  2. conditions that promote the growth of many offspring
  3. conditions that enable the organism to obtain abundant nutrients and water
  4. conditions that make it difficult for the organism to get enough nutrients and water
Grade 8 Development and Reproduction
How do the two types of reproduction compare?
  1. They both require cells.
  2. They are not identical.
  3. They have different parents.
  4. All of the above
Grade 8 Development and Reproduction
How many types of reproduction are there?
  1. 1
  2. 2
  3. 3
  4. 4
Grade 8 Development and Reproduction
For transfer of sperms from male to female, the male inserts an organ A into the B of female. What are A and B?
  1. A. Scortum, B. Anus
  2. A. Penis, B. Anus
  3. A. Penis, B. Vagina
  4. A. Scortum, B. Vagina
Grade 8 Development and Reproduction
The male's testes produces a gamete X and the female's ovaries produce a gamete Y. What are X and T?
  1. X and Y are respectively ovum and sperm
  2. X and Y are respectively semen and sperm
  3. X and Y are respectively sperm and ovum
  4. X and Y are respectively sperm and estrogen
Grade 8 Development and Reproduction
Which of the following is a contraceptive method that prevents pregnancy even if there is a sexual intercourse?
  1. Condom
  2. Copper IUCD
  3. Both of them
  4. None of them
Grade 8 Development and Reproduction

This question is a part of a group with common instructions. View group »

If a rat births several offspring after fertilization, why will these offspring NOT be genetically identical to the mother?
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