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

You are browsing Grade 9 questions. View questions in All Grades.

Kindergarten Grade 1 Grade 2 Grade 3 Grade 4 Grade 5 Grade 6 Grade 7 Grade 8 Grade 9 Grade 10 Grade 11 Grade 12 College

Browse Questions

Ninth Grade (Grade 9) Development and Reproduction Questions

You can create printable tests and worksheets from these Grade 9 Development and 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 Development and Reproduction
A zygote is formed when                                    .
  1. the process of meiosis is completed
  2. crossing over occurs during meiosis
  3. the egg is formed during meiosis
  4. the sperm fertilizes the egg
Grade 9 Development and Reproduction
Half the DNA of an individual is combined with the other half during the process of                       .
  1. chromosome segregation
  2. fertilization
  3. meiosis
  4. mitosis
Grade 9 Development and Reproduction
Female gametes are made in the                .
  1. ovaries
  2. testes
  3. uterus
  4. vagina
Grade 9 Development and Reproduction
Which process allows a mammal to continue to grow in size?
  1. death of cells
  2. mitosis of body cells
  3. cells growing in size
  4. decomposition of cells
Grade 9 Development and Reproduction
The union of an ovum and a sperm is                  .
  1. miscarriage
  2. fertilization
  3. amniocentisis
  4. ectopic pregnancy
Grade 9 Development and Reproduction
What is a zygote?
  1. a parasite
  2. an egg cell
  3. a sperm cell
  4. a fertilized egg
Grade 9 Development and Reproduction
How long do mammals protect their offspring? Select all the answers that apply.
  1. months
  2. years
  3. minutes
  4. hours
Grade 9 Development and Reproduction
Reproduction accomplished by a single organism is
  1. sexual.
  2. asexual.
Grade 9 Development and Reproduction
Which secondary sex characteristics occur in males during puberty?
  1. Onset of the menstrual cycle
  2. Softening of the skin along with widening of the hips
  3. Growth of body and facial hair along with deepening of the voice
  4. None of the above
Grade 9 Development and Reproduction
The                 is the organ that nourishes the embryo.
  1. fetus
  2. ovary
  3. placenta
  4. zygote
Grade 9 Development and Reproduction
Which statement describes the process of plant fertilization?
  1. A seed grows into a plant when buried.
  2. Pollen grains land on a plant’s flower.
  3. A flower turns into the fruit of a plant.
  4. A plant's egg joins with the sperm.
Grade 9 Development and Reproduction
Male gametes are made in the
  1. bladder.
  2. ovaries.
  3. penis.
  4. testes.
Grade 9 Development and Reproduction
In general, sexual reproduction requires two organisms.
  1. True
  2. False
Grade 9 Development and Reproduction
What is a new organism produced by a living thing?
  1. offspring
  2. cell
  3. stimulus
  4. organism
Grade 9 Development and Reproduction
Mitosis begins in a zygote after 30 hours.
  1. True
  2. False
Grade 9 Development and Reproduction
What 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
Grade 9 Development and Reproduction
With incomplete metamorphosis, organisms have
  1. egg, nymph, and adult stages.
  2. egg, larva, pupa, and adult stages.
  3. an adult form that has little resemblance to earlier stages.
Grade 9 Development and Reproduction
The process in which a blastocyst attaches to the wall of the uterus is
  1. follicle creation.
  2. implantation.
  3. ovulation.
  4. reproduction.
Previous Page 1 of 2 Next