Life Exam Review

When Dakota sees his newborn cousin for the first time, he is surprised to see that his cousin's skin and eyes have a yellowish color. Dakota's aunt tells him that this happens when the organ that filters a person's blood does not work properly. Which organ is MOST likely causing Dakota's cousin to look yellowish?

• heart

• liver

• lungs

• pancreas

The Florida scrub jay is a bird found only in the scrub habitat of Central Florida. Efforts are being made in Florida to preserve the scrub habitat by limiting development by humans and maintaining natural conditions. Which may occur over time if the Florida scrub habitat is NOT preserved?

• The scrub jays may become extinct.

• The scrub jays may move to live in a coastal habitat.

• The scrub jays may learn to live in any habitat that replaces the scrub habitat.

• The scrub jays may have offspring with changed features to match a new habitat.

During recess, Renee scraped her knee, so the nurse put a bandage on her skin. Which of the functions below that are normally provided by skin is now being provided by the bandage?

• preventing dehydration

• regulating body temperature

• keeping bacteria out of the body

• sensing when her skin has been touched

A scientist has a rock sample that he says was under water at one time. Which statement is evidence to support his claim?

• The scientist is an expert on rocks.

• The rock has fish skeleton fossils inside it.

• Many people agree with the scientist's claim.

• Other scientists believe the rock was under water, too.

Which structure in a plant has a function similar to the function of a skeleton in a mammal?

• exoskeleton

• flower

• leaf

• stem

During dry seasons, alligators make deep holes in the wetlands. Why has the alligator adapted to make a hole its home during these seasons?

• to protect eggs in its nest

• to provide a habitat to other animals

• to cool off during the hot temperatures

• to stay warm during the cool temperatures

Which method would work BEST to make a direct observation about today's outside temperature?

• use of a radio

• use of a thermometer

• use of an Internet report

• use of a weather forecast

Scientists studied a population of harvest mice living in a small area. Some mice have dark-colored fur, and some mice have light-colored fur. The graph below shows how the number of mice with each type of fur color changed over five years.

• An environmental change killed off most of the plants that the mice eat.

• An environmental change allowed an invasive species to be introduced.

• An environmental change reduced the amount of water available to the mice.

• An environmental change caused one fur color to be more visible to predators than the other.

Which plant structure is MOST similar in function to a lizard's eggs?

• flowers

• pollen

• seeds

• stem

Amphibians are able to exchange oxygen and carbon dioxide through their smooth, moist skin. Which of these organs has the same purpose?

• heart

• liver

• lungs

• stomach