Natural Selection

In a cold environment what would be some adaptive traits? Sellect all that apply.

• thick blubber

• thick fur

• thin fur

• strong muscles

Tags

NGSS.MS-LS4-4

The Asian shore crab invaded parts of the eastern coast of the United States about 15 years ago. The Asian shore crab preys on blue mussels. In the time since the Asian shore crab arrived, the average shell thickness of the blue mussel population has increased.

Which of the following is the most likely reason that this increase in shell thickness has occurred?

• Blue mussels with thick shells attract more crabs that mussels without thick shells.

• Blue mussels with thick shells grow in larger colonies than mussels without thick shells.

• Blue mussels with thick shells catch more food per day than mussels without thick shells.

• Blue mussels with thick shells survive and reproduce more successfully than mussels without thick shells.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

Which of the following statements best describes what will most likely occur to the moth populations in the image?

• The light moths will be captured by predators more easily than the dark moths, and the population of light moths will rise.

• The light moths will change their wing color to match that of the dark moths.

• The light moths will be captured by predators more easily than the dark moths, and the population of dark moths will rise.

• The dark moths will be captured by predators more easily than the light moths, and the dark moths will probably go extinct.

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

The process of organisms changing over time; organisms with traits better suited to their environment tend to survive and reproduce.

• Variation Mode

• Natural Selection

• Artificial Selection

• Gene Pool Analysis

Tags

NGSS.MS-LS4-4

What is the advantage of having different shaped beaks?

• To look different from other species.
• To be able to eat the food readily available in the environment.
• To protect itself against predators.
• To protect itself against prey.

Tags

NGSS.MS-LS4-2

Definition: competition

• inherited characteristic that increases chances of survival
• organisms with traits well suited to their environment survive and reproduce at a greater rate
• a growing population causes a scarcity of resources
• differences in the DNA sequence

Tags

NGSS.MS-LS2-1

NGSS.MS-LS2-4

Since the 1800s humans have stopped burning coal, and the trees have returned to their original color. Which moth will be more successful in this environment?

• Dark moth
• Light moth
• Both will be equally successful
• Neither will be successful

Tags

NGSS.MS-LS2-4

NGSS.MS-LS4-4

What is a mutation?

• a total of all biotic and abiotic things

• the time between when an organism is born and when they reproduce

• A change in the DNA sequence.

• an ancestor that two or more descendents have in common.

Tags

NGSS.MS-LS3-1

What is the purpose of all species including the Ground Finches of Galapagos Island?

• A species adapts to survive long enough to regenerate itself.

• A species adapts to survive long enough to reproduce.

• A generation that adapts long enough to stretch its traits such as the beak.

• A generation that adapts to revert back to the common ancestors' traits.

Tags

NGSS.HS-LS4-2

NGSS.HS-LS4-4

What is natural selection?

• a living individual that can carry out life processes

• Process by which an organism that better adapts to their environment survive and reproduce

• Process by which a community better adapts to their environment to give traits to one another within their generation.

• the time between when an organism is born and when they reproduce

Tags

NGSS.MS-LS4-2

NGSS.MS-LS4-4