PLS HELP THIS IS FOR A GRADE I WILL GIVE BRAINLYEST

1. As a result of deforestation, a forest environment changes to a desert environment. Identify the trait that is most likely to be naturally selected as a result of the environmental change described.


A. A nocturnal schedule

B. The ability to climb trees

C. A spotted coat

D. Thick fur


2. Which of the following describes the effects of natural selection on the traits of finch species of the Galapagos Islands?


A. The finch species on different islands all have very similar beak lengths and widths.

B. Each finch species evolved a beak that suits its island environment and food source.

C. The finch species on the different islands evolved long thin beaks to survive on the small seeds of the Galapagos.

D. Individual finches within each species evolved different beaks to contribute to genetic variation.


3. The polar bear lives within the Earth’s northern polar region. Unlike other bears who live on land, polar bears spend most of their time roaming the sea ice in search of food. It is here on the sea ice they hunt the major food source, the sea lion. Because of their dependence on the sea ice, polar bears are classified as marine mammals. As the sea ice is melting due to global warming, the polar bear is now considered a vulnerable species.

If this trend continues, which statement describes how the polar bear be affected?


A. They will have to hibernate longer.

B. They will be easier targets for predators.

C. They will live in the water instead of on land.

D. They will either adapt, migrate, or become extinct.


4. Saber Tooth Tigers were predatory mammals known for their large protruding saber-like teeth. They lived on the American Grasslands for over 40 million years. Saber Tooth Tigers are a member of a group of animals called “Megafauna.” Scientists believe their food sources were large herbivores. At the end of the last ice age (10,000 yrs. ago), they became extinct.

From the information given, what is the probable reason the Saber Tooth Tiger did not survive into modern times?


A. The Saber Tooth Tigers suffered from disease.

B. The Saber Tooth Tiger exhausted its food source.

C. The Saber Tooth Tiger could not adapt to environmental changes.

D. The Saber Tooth Tiger was hunted to the point of extinction by predators.


5. An oasis in a desert was very swampy. Two different species of frogs lived in the swamp. A chemical was spilled in the swamp. Some of the chemical is still found in the swamp. One frog species is now extinct. The species that survived is still found in the swamp. The surviving species probably had the ability to –


A. Move far away

B. Eat different insects

C. Adapt to the Chemical

D. Reproduce in high numbers.