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Ninth Grade (Grade 9) Development and Reproduction Questions

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Grade 9 Development and Reproduction
Which of these are secondary sex characteristics that occur in males during puberty?
  1. Widening of the hips
  2. Softer skin
  3. Growth of body and facial hair, along with a deepening of their voice
  4. None of the above
Grade 9 Development and Reproduction
Grade 9 Development and Reproduction
Which process allows a mammal to continue to grow in size?
  1. Decomposition of cells
  2. Mitosis of body cells
  3. Cells growing in size
  4. Cells dying
Grade 9 Development and Reproduction
Which statement describes the process of plant fertilization?
  1. A flower turns into the fruit of a plant.
  2. A seed grows into a plant when buried.
  3. Pollen grains land on a plant’s flower.
  4. A plant's egg joins with the sperm.
Grade 9 Development and Reproduction
Grade 9 Development and Reproduction
Grade 9 Development and Reproduction
Grade 9 Development and Reproduction
Grade 9 Development and Reproduction
Incomplete metamorphosis                                                    .
  1. includes the egg, nymph, and adult stages
  2. includes the egg, larva, pupa, and adult stages
  3. adult form has little resemblance to earlier stages
Grade 9 Development and Reproduction
What is a zygote?
  1. A sperm cell
  2. An egg cell
  3. A fertilized egg
  4. A parasite
Grade 9 Development and Reproduction
Grade 9 Development and Reproduction
A zygote is formed when                                    .
  1. the process of meiosis is completed
  2. the egg is formed during meiosis
  3. crossing oer occurs during meiosis
  4. the sperm fertilizes the egg
Grade 9 Development and Reproduction
The union of an ovum and a sperm is called                  .
  1. Miscarriage
  2. Fertilization
  3. Amniocentisis
  4. Ectopic Pregnancy
Grade 9 Development and Reproduction
What is the function of the Fallopian tubes?
  1. The production of eggs
  2. The passing of the egg from the ovary to the uterus
  3. As a location where the fetus develops during gestation
Grade 9 Development and Reproduction
Grade 9 Development and Reproduction
Which is the primary purpose of seed dispersal?
  1. To begin photosynthesis in the seed coat
  2. To create a new colony of offspring plants
  3. To lure animals away from the parent plant
  4. To reduce competition with the parent plant
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