Want to see correct answers?
Login or join for free!
  Biology Worksheets
Looking for Biology worksheets?
Check out our pre-made Biology worksheets!
Share/Like This Page
Filter By Grade

Ninth Grade (Grade 9) Human Reproduction Questions

You can create printable tests and worksheets from these Grade 9 Human Reproduction questions! Select one or more questions using the checkboxes above each question. Then click the add selected questions to a test button before moving to another page.

Previous Page 1 of 2 Next
Grade 9 Human Reproduction
What controls the start (onset) of puberty?
  1. Saliva Gland
  2. Thyroid Gland
  3. Pituitary Gland
  4. Adrenal Gland
Grade 9 Human Reproduction
When does conception or fertilization occur?
  1. a dominant gene overrides a recessive gene.
  2. sperm from a male unites with an egg from a female.
  3. an egg matures in a female's ovary.
  4. all 23 pairs of chromosomes are present.
Grade 9 Human Reproduction
How are blood and nutrients carried from the mother to the developing fetus?
  1. placenta
  2. fallopian tubes
  3. endometrium
  4. umbilical cord
Grade 9 Human Reproduction
What are the overall physical changes that occur in male and female bodies during puberty called?
  1. premenstrual symdrome.
  2. estrogen
  3. secondary sex characteristics
  4. testosterone
Grade 9 Human Reproduction
Grade 9 Human Reproduction
How many chromosomes do spermatogonia in humans have?
  1. 46 Chromosome
  2. 23 Chromosomes
  3. 2 Chromosomes
  4. 44 Chromosomes
Grade 9 Human Reproduction
Grade 9 Human Reproduction
What is fertilization?
  1. Joining of a sperm
  2. Joining of a sperm and egg cell
  3. Joining of an egg cell
Grade 9 Human Reproduction
A zygote is a
  1. two-celled embryo
  2. solid ball of about 50 cells
  3. blastocyst
  4. fertilized egg
Grade 9 Human Reproduction
Approximately how long does it take for childbirth occur, from fertilization to birth?
  1. Approximately nine months
  2. Three trimesters
  3. Approximately 280 days
  4. All of the above
Grade 9 Human Reproduction
Another name for identical twins is                .
  1. Chromosome
  2. Monogyzotic
  3. Dizyogotic
  4. Conception
Grade 9 Human Reproduction
Which of the following is a function of the placenta?
  1. mixing the blood of the mother and fetus
  2. protecting the fetus from any drugs or alcohol in the mother's body
  3. providing nutrients to the fetus
  4. cushioning and protecting the fetus
Grade 9 Human Reproduction
Grade 9 Human Reproduction
What is Vulva?
  1. humans, animals, or plants.
  2. the external parts of the female genital organs
  3. The period between the infection of a individual
  4. any large groups of submicroscopic agents
Previous Page 1 of 2 Next
You need to have at least 5 reputation to vote a question down. Learn How To Earn Badges.