8th Unit 3 Reproduction, Heredity, and Growth, Lesson 4 Quiz

Which behavior most directly increases reproductive success in animals?

• A female butterfly flaps her wings to reject a courting male.

• A bird pretends to have a broken wing to lure away predators.

• A male penguin keeps an egg warm for two months.

• A male ostrich performs a dance to attract females.

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Many factors can affect the growth of crops. Which of these examples describes how a genetic factor can influence the growth of crops?

• Farmers have found that aerating, or adding more oxygen to the soil, helps their peanut crops grow better.

• Farmers find that their potatoes grow larger when the water that they use to irrigate with has a higher acidity.

• Farmers notice that many strawberry plants have died after a late frost.

• Farmers have found a way to grow oranges that are resistant to disease so that more make it to harvest.

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Heavier female black bears produce more offspring. Which statement describes a genetic factor that might negatively affect a female black bear’s reproductive success?

• Long, curved claws help the bear climb tree trunks and dig open insect mounds.

• Powerful legs allow the bear to chase prey at speeds up to 30 miles per hour.

• The bear can digest fruits easily but has difficulty digesting fats.

• Binocular vision gives the bear excellent depth perception.

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Which of these best describes successful animal behaviors?

• They are beneficial for survival and reproduction.

• They are influenced by genes and experience.

• They are only instinctive and genetic.

• They involve thinking, reasoning, and problem solving.

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A gardener wanted to grow pumpkins to show in the state fair. She planted a variety of pumpkin seeds in several locations throughout her yard. At the end of the growing season, she had some pumpkins that were small and some that were giant. Which factor could not have contributed to the variety of size between pumpkins?

• The pumpkin seeds came from pumpkins with different genes.

• The pumpkin seeds were all planted on the same day.

• Some pumpkins were grown in the shade and some in the sun.

• The pumpkin seeds were planted in different locations.

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Which of these is not a factor that influences animal growth?

• availability of food

• inherited diseases

• gravitational force

• genetic information

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Which parenting behavior does not increase the probability that offspring will survive?

• protecting young from cold weather

• abandoning young before eggs are hatched

• producing milk to feed young

• guarding young from predators

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A beautyberry is a type of shrub that grows well in the southern United States. Some students have a small beautyberry shrub that is growing near their school. They record the number of berries, ripe or unripe, and the number of flowers at different times throughout the year.

Which statement best explains what is shown in their data?

• The beautyberry relies on one type of animal to eat the berries.

• The beautyberry increases its chances of reproduction because its berries do not all become ripe at the same time.

• The beautyberry relies on wind to spread its seeds.

• The beautyberry uses asexual reproduction to make new plants.

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Which of these behaviors results in the highest percentage of reproduction?

• An adult teaches its offspring how to eat scorpions.

• A dog urinates on fire hydrants and several trees.

• A sea turtle lays large quantities of eggs deep in the sand.

• A bird decorates its nest with colorful forest items.

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Which of these is a courting behavior that can increase a male's probability of reproductive success?

• A chimpanzee learns to use a tool by watching another chimpanzee.

• A male gorilla displays strength and vocalizations to females.

• Male and female robins sit on their eggs to keep them warm until they hatch.

• A group of birds flies to a new location with more food resources.

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