IT Chapter 3 Review

1.Marine biologists study organisms that live in bodies of water. Below are two types of fish the biologists have been studying: a puffer fish and an angel fish.

Why does the puffer fish have the traits of spikes but not the angel fish?

• The puffer fish is older than the angel fish. Only old fish have spikes.

• The angel fish lost its spikes when fighting with another fish.

• The fish live in two different environments.

• The fish inherited different traits from their parents. 

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Which of the following best explains why the puffer fish has spikes?

• The puffer fish inherited the trait of spikes from its parents.

• The angel fish is too skinny to have spikes.

• The puffer fish get the spikes from its environment.

• The puffer fish is an organism and the angel fish is not.

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Lizards come in many colors. Three lizards, all different colors, live in an environment where there are mainly bright green leaves. Below is the data collected by scientists on the survival of different-colored lizards in this environment.

Based on the data collected, which lizard survived the best in this environment?

• The brown lizards survived the best because they camouflaged with the leaves.

• The red-brown lizards survived the best because they camouflaged with the leaves.

• The green lizard survived the best because it can camouflage in the leaves.

• They all survived the best because they all camouflaged with the leaves.

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How is it possible for two puppies to have different traits if they share the same parents?

• They got the traits from people from a long time ago.

• They got their traits from looking at each other.

• They got the exact same genes from both parents.

• They got different genes from their parents.

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Sometimes a zebra may be exiled from its herd.

Which of the following may happen to a zebra that no longer is a part of a herd?

Select the two correct answers.

• The zebra will not be protected from predators.

• The zebra will be able to protect itself from predators.

• The zebra will easily be able to hunt.

• The zebra might be eaten by predators.

• The zebra can camouflage into the grass.

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Entomologists (scientists who study insects) have been observing the alarm sounds of cicadas. Cicadas are insects with long wings that make a loud rattling sound with their bodies when predators are near. Entomologists have noticed that the cicadas are no longer making their rattling sound when they are scared. They have also noticed the following:

•The bird population in the area has increased in the last few weeks.

•Birds are known predators of cicadas.

How does not rattling their bodies help the cicadas survive in their environment? In your response, be sure to provide evidence to support your claim.

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