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Test Description: Reproduction
Instructions: Answer all questions to get your test result.
1) When a planarian (a type of worm) gets cut in half, usually each half grows back into a complete worm over time. This most closely resembles
A
asexual reproduction of a single-celled organism
B
sexual reproduction of a single-celled organism
C
sexual reproduction where each half represents one parent
D
asexual reproduction where a mutation has occurred
2) In an environemnt that undergoes frequent changes an organism that reproduces sexually will have an advantage to those that reproduce asexually becuase the sexually reproducing organisms produce
A
more offspring in each generation
B
identical offspring
C
a new species with each generation
D
offspring with more variety
3) Body cells of a fruit fly contain eight chromosomes. In some cells only 4 chromosomes are present. This is a direct result of
A
mitotic cell division
B
differentiation
C
mieotic cell division
D
internal fertilization
4) The human reproductive system is regulated by
A
carbohydrates
B
hormones
C
restirction enzymes
D
antigens
5) The structure that provides nutrients and gas exchange for a developing embryo is the
A
ovary
B
placenta
C
gamete
D
stomach
6) Which hormone does not regulate human reproductive cycles
A
testosterone
B
estrogen
C
insulin
D
progesterone
7) sexual reproduction results in
A
genetically identical offspring
B
decrease in biodiversity
C
increase in chromosome number in the offspring
D
recombination of offspring
8) Asexual reproduction produces offspring that each contain
A
less genetic information that the parent
B
a new combination of genetic information
C
genetic information from one parent
D
genetic inforamtion from two parents
9) Which statement best explains the significance of meiosis in teh evolution of a species
A
meiosis produces eggs adn sperm that are alike
B
equal numbers of egg and sperm are produced during meiosis
C
meiosis provides chromosomal variation in the gametes produced by an organism
D
the gametes produced by meioisis ensure the continuation of a species throguh asexual reproduction
10) Which structure in correctly paired with its function?
A
placenta; storage of released eggs
B
testes; produce sperm
C
ovary; provides milk for a newborms
D
uterus; produces estrogen
*select an answer for all questions
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