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April 28, 2015

Homework Help: science help!!!

Posted by josh on Friday, October 18, 2013 at 2:08am.

1. Seahorses change color and swim together in predetermined ways before mating. These behaviors are called (1 point)
asexual reproduction.
sexual reproduction.
courtship rituals.
budding.
2. A male peacock displays his colorful tail feathers in order to (1 point)
increase the success rate of asexual reproduction.
increase the gestation period.
release gametes into his surroundings.
attract a mate.
3. What is the difference between internal and external fertilization? (1 point)
Internal fertilization occurs outside the male’s body, while external fertilization occurs inside the male’s body.
Internal fertilization occurs outside the female’s body, while external fertilization occurs inside the female’s body.
Internal fertilization occurs inside the male’s body, while external fertilization occurs outside the male’s body.
Internal fertilization occurs inside the female’s body, while external fertilization occurs outside the female’s body.
4. Which of the following is a disadvantage of external fertilization? (1 point)
Gametes are released into the surroundings.
Gametes may get washed away.
The developing zygote is protected.
Large numbers of eggs can be fertilized at one time.
5. Which of the following is an advantage of internal fertilization? (1 point)
Gametes are released into the surroundings.
Gametes may get washed away.
The developing zygote is protected.
Large numbers of eggs may be fertilized at one time.

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