Biomes, Ecological Succession, Biodiversity

The figure shows two spotted salamanders. They are the same species of salamander, but they live in different areas. Which of these terms is used to describe the difference between them?

• Variation

• Extinction

• Population

• Overpopulation

Tags

NGSS.MS-LS4-4

Which of the following statements about biodiversity is TRUE?

• More Biodiversity —> Less chance for an ecosystem to sustain itself

• More Biodiversity —> Better chance for an ecosystem to sustain itself

• More Biodiversity —> Less species in an ecosystem

• More Biodiversity —> More population in an ecosystem

Tags

NGSS.MS-LS2-4

NGSS.MS-LS2-5

A community of all living and non living things that live and interact in a particular area is known as a(n)

• ecosystem

• food web

• niche

• species

A scientist observed three very different ecosystems. Her observations are recorded in the table below. Based on her observations, what can you infer?

• Ecosystem B has too many different species to sustain itself.

• Ecosystem C has the best chance of sustaining itself because it has few species.

• Ecosystem B has the best chance of protecting itself from outside stress compared to A and C.

• Ecosystem A has the best chance of protecting itself from outside stress, compared to Ecosystem B and C.

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Which organism would MOST LIKELY be adapted for life in a desert environment?

• A bright red, tree frog

• A dark, green crocodile

• A large, white rabbit with long, thick fur

• A small, tan coyote with very short, thin fur

Tags

NGSS.MS-LS2-1

NGSS.MS-LS4-4

A group of scientists were studying a particular species of crab found on oceanic islands. The marks on the map below show the location of every crab of this species on three different islands. What is one conclusion you can make based on the information on the maps?

• The crabs only live on big islands.

• The crabs only live on islands with a lot of rainfall.

• Southern beaches are good habitats for the crabs.

• All parts of the island are good habitats for the crabs.

Tags

NGSS.MS-LS2-1

Which of the following is an example of natural selection?

• Hummingbirds drinking nectar from a plant.

• Whales and dolphins swimming to the water’s surface to breathe.

• Sloths making their homes high in trees to protect themselves from predators.

• Brown-colored lizards surviving and reproducing because they are better able to camouflage themselves from predators.

Tags

NGSS.MS-LS4-4

A gradual change over time in a species that enables the species to better survive its environment is known as a(n)

• Adaptation

• Habitat

• Population

• Competition

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-2

Which of the following statements about variations in a species or population is TRUE?

• Variations help species and populations survive.

• All organisms in a population have the same variations.

• Physical variations are the only traits that help species or populations survive.

• Behavior variations are the only traits that help species or populations survive.

Tags

NGSS.MS-LS4-4

NGSS.MS-LS1-5

NGSS.MS-LS3-1

Which of the following is NOT a reason organisms migrate?

• To reproduce

• To get more food

• To avoid being eaten by predators

• To find a more suitable climate