Adaptations & Survival QBA2 Review

Juan wanted to become an expert bird watcher when he grows up. He decided to start by watching birds in his backyard. Juan lives in a heavily wooded area that has lots of fallen trees, but not much grass. There are no bodies of water nearby. Any bird living in Juan's backyard will need to be able to drill for insects in the trees.

Which bird beak is Juan most likely to see on a bird living in his backyard?

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NGSS.MS-LS4-2

Animals that live in the frigid regions of the North or South Pole must adapt to

special conditions. Some information about environmental conditions in polar regions is provided.

Which of these could be a helpful adaptation for an organism that lives in the North Pole?

• ability to fly or run fast

• strong legs to jump high

• thick fur and layers of fat

• hard shell around the body

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NGSS.MS-LS4-4

Loggerhead sea turtles are large turtles that live in the ocean and nest on the Florida coast. The female loggerhead sea turtle lays more than 100 eggs in the beach sand before returning to the ocean. When the baby turtles hatch, many are eaten by predators before they reach the water, and others are eaten by predators in the water. Only about 1 out of every 100 turtles survives to adulthood.

Which answer BEST explains how laying a large number of eggs is an important adaptation that helps these turtles to survive?

• Large numbers of eggs in one nest makes it easier to find.

• If a large number of turtles hatch, that ensures the turtles have lots of brothers and sisters to help them find food

• The more eggs that are laid, the higher the chance that more turtles will live to become adults

• A large number of eggs in one place makes it possible for the mother to lie on the eggs until they hatch

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A tiger’s fur is orange-brown with stripes. Its fur helps it hide in a field of brown grass. When another animal comes near, the tiger can jump out of hiding and attack it. A toad’s body is brown. It blends in with brown sand. A toad can hide from predators while it looks for insects to eat.

What is one way that a tiger and a toad are similar?

• Their skin is adapted for hunting at night

• Their skin keeps them cool in the sun

• They are both good swimmers

• Their color helps them hide to get food

Hurricane Andrew caused many animals in the Miami Zoo to become displaced. Two of the animals that lost their homes were the collared lemming, which has thick white fur and sharp claws, and the marsh rabbit, which has thin brown fur and is a strong swimmer. Both animals from the zoo were now free in a Florida forest.

Which animal would MOST LIKELY have a better chance of survival, and why?

• The marsh rabbit because its ability to swim helps it to scare away predators

• The collared lemming because its sharp claws help it grip the ice when walking

• The collared lemming because its thick, white fur helps it stay warm during the winter months

• The marsh rabbit because its thin, brown fur helps it blend into its environment and stay cool

A scientist that was studying a strand of pine trees in a south Florida forest noticed that after a drought, which is a period of time when the amount of rainfall is much less than normal, the tall pine trees died in larger numbers than the shorter pine trees. The scientist observed that 4% of the short pine trees in the area died during the drought, but 53% of the tall pine trees died during the same time period.

What can the scientist infer about the pine trees?

• The shorter trees that did better must have an adaptation that helps them survive during a drought.

• The short trees were most likely able to absorb more carbon dioxide out of the air

• Someone probably came into the forest and cut down all of the tall trees

• An invasive insect most likely killed the tall trees

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NGSS.MS-LS1-5

NGSS.MS-LS2-1

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Which of the following changes to the environment would most likely result in deer moving out of an area to a new habitat?

• a decrease in the number of predators

• a decrease in the numbers of disease carrying insects

• a loss of the kinds of plants they eat

• several winters with warmer temperatures

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