Lesson 11 - Traits for Reproduction

Which of these is a way that musk oxen care for their offspring?

• Musk oxen will form a circle around their offspring when they sense danger

• Musk oxen will build a shelter for their offspring to keep them warm.

• Musk oxen will send their offspring into the wild shortly after they are born.

• Musk oxen will have many children to increase the chance of their survival.

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Which of these is NOT true of the chances of offspring survival

for species that lay many eggs?

• Many eggs are likely to not hatch at all.

• Many eggs are likely to be eaten before they hatch.

• Many offspring are likely to be eaten soon after they hatch.

• All offspring are likely to survive because they are cared for in greater numbers.

How is sound an example of courtship behavior?

• All animals use sound to communicate with their potential mates

• All animals use sound to intimidate their rivals

• Some animals use sound to attract a mate of the same species

• All animals use sound to warn others species away from their potential mates.

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Why would a mother sea turtle lay 1,000 eggs instead of 10?

• The more eggs she lays, the more important she becomes to her community.

• The more eggs she lays, the more likely each one is to hatch.

• The more eggs she lays, the more mates she is likely to a􀀯ract.

• The more eggs she lays, the more likely it is that her offspring will survive.

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Which of these is true of how plants use pollen to reproduce?

• Pollen is only transferred by the wind blowing it to neighboring plants.

• The male part of a flower produces pollen

• Pollen is large and difficult to transfer between plants.

• When pollen reaches the male part of a flower, a seed can form.

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How are a peacock's feathers a physical trait for reproduction?

• A peacock uses its feathers to attract a female

• A peacock uses its feathers to carry its offspring

• A peacock uses its feathers as a shield to protect its offspring

• A peacock uses its feathers to warn predators away from its offspring.

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Courtship behavior is any behavior or way of acting that

• leads to the growth of an animal's community.

• guaranteers that an animal finds a mate

• helps a animal find food and shelter

• helps an animal attract a mate.

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Which of these is a benefit of taking care of offspring?

• Taking care of offspring guarantees that the offspring will have similar traits for survival.

• Taking care of offspring means the odds of each offspring’s survival is greater.

• Taking care of offspring means it is easier to find food.

• Taking care of offspring means that every one of them will survive.

Which of these is an example of an animal’s physical trait for reproduction?

• a dog's coat color

• a lion' roar

• a kangaroo’s pouch

• a dolphin's fin

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How do fireflies use flashing lights as a behavioral trait for reproduction

• the flashing lights attract predators

• the flashing lights attract more mates when they flash very quickly.

• the flashing lights are used to communicate in ways similar to language.

• the flashing lights attract mates of the same species.

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