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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
sexual reproduction of a single-celled organism
B
asexual 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
identical offspring
B
a new species with each generation
C
more offspring in 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
differentiation
B
mieotic cell division
C
internal fertilization
D
mitotic cell division
4) The human reproductive system is regulated by
A
antigens
B
carbohydrates
C
restirction enzymes
D
hormones
5) The structure that provides nutrients and gas exchange for a developing embryo is the
A
gamete
B
placenta
C
ovary
D
stomach
6) Which hormone does not regulate human reproductive cycles
A
testosterone
B
progesterone
C
insulin
D
estrogen
7) sexual reproduction results in
A
recombination of offspring
B
increase in chromosome number in the offspring
C
decrease in biodiversity
D
genetically identical offspring
8) Asexual reproduction produces offspring that each contain
A
genetic inforamtion from two parents
B
genetic information from one parent
C
less genetic information that the parent
D
a new combination of genetic information
9) Which statement best explains the significance of meiosis in teh evolution of a species
A
the gametes produced by meioisis ensure the continuation of a species throguh asexual reproduction
B
meiosis provides chromosomal variation in the gametes produced by an organism
C
meiosis produces eggs adn sperm that are alike
D
equal numbers of egg and sperm are produced during meiosis
10) Which structure in correctly paired with its function?
A
placenta; storage of released eggs
B
ovary; provides milk for a newborms
C
testes; produce sperm
D
uterus; produces estrogen
*select an answer for all questions
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