SSA Review Day1 Practice

The diagram shows a simple food chain.

Which statement supports the ecosystem represented by the food chain?

• It can support more panthers than deer.

• It can support more deer than panthers.

• It can support the same number of panthers as it can deer.

• The amount of grass does not affect the ecosystem.

Tags

SC.8.L.18.4

Individuals within a population have slightly different traits. How do these differences improve the likelihood that the population will survive?

• Variation allows the population to produce offspring that will survive into adulthood.

• Variation allows the population to create new genes to survive a significant change in the environment.

• Variation allows the population to survive changes in the environment because traits that are suited to the new environment already exist in the population.

• Variation allows individuals who are very different from the rest of the population to reproduce more successfully than “normal” individuals.

Tags

SC.7.L.15.2

The diagram shows the changes over time in a population of mice in the wild. Which statement best describes why the mouse population changed over time?

• The light mice are preyed upon more than the dark mice because they are more visible to the hawks.

• The light mice are more attractive to the other mice and therefore reproduce more successfully than dark mice.

• The dark mice are selected less than the light mice because they are less tasty to the hawks

• The dark mice are easily spotted by hawks, so dark mice reproduce more rapidly to maintain the population size.

Tags

SC.7.L.15.2

A species of rodent is living in a moist forest climate. Over time, the climate becomes drier and more desert-like. Which of these adaptations likely will improve the rodent’s chances of survival in its changing environment?

• The rodent is active only at night.

• The rodent eats only a specific type of berry.

• The rodent lives above ground in damp areas.

• The rodent has dark hair, small ears, and is active during the day.

Tags

NGSS.MS-LS4-4

Within a food web, there are usually many different food chains. A particular organism may be a part of many different food chains. This global food web includes elements from a meadow ecosystem that interacts with a marsh ecosystem.  Which of these is a food chain that is part of the global food web?

• meadow grass → rabbit →

  fox →

  hawk

• marsh grass → snail →

  small fish →

  hawk

• marsh grass → grasshopper →  mouse →

  fox

• meadow grass → grasshopper → praying mantis → small fish

Tags

SC.8.L.18.4

Scientists suspect that modern horses have different dietary habits than horses that lived long ago. Which of the following would be best for a scientist to do to determine whether the dietary habits of horses have changed over time?

• Compare the teeth of modern horses to fossilized teeth from ancient horse

• Study the overall anatomy of a modern horse

• Compare the teeth of modern horses to the teeth of modern donkeys

• Study the diet of modern horses

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2

In eukaryotic nuclei, DNA and proteins are packaged into organized cellular structures known as _______.

• Gametes

• Vacuoles

• Diploids

• Chromosomes

Tags

SC.7.L.16.1

The diagram shows illustrations of fossilized forefeet and molar teeth from horses that lived during different time periods. The diagram also shows how the body shape and size of horses has changed over time. This fossil evidence provides support for the idea that:

• modern organisms within a species are identical to their ancestors.

• ancient species are now extinct and modern species have spontaneously generated.

• modern organisms have evolved from earlier species.

• changes can only occur in a species' feet and teeth.

Tags

NGSS.MS-LS4-1

NGSS.MS-LS4-2