V&A LT678

considering the thick brown fur of the back of the bear image, which of the following explains how this is a favorable trait for a bear living in Canada?

• the brown hair helps it blend into the green grass

• the brown hair look fierce and scares off predators

• the brown hair is thick and provides warmth

• the brown hair is water repellent

• the brown hair limits the damage done by lightning strikes

Tags

NGSS.MS-LS4-4

considering the front half of the bear, with the snowy environment behind it, which of the following does not fit as a trait that increases its survival?

• sharp claws to attack prey with

• water storing structures to survive dry periods

• white fur to blend in with the snowy environment

• blubber to stay warm in the snowy environment

Tags

NGSS.MS-LS4-4

these beetles exist in west Texas, where males in the species will fight each other for the right to mate with females. males with larger jaws tend to win these fights. which of the charts below best displays the trend we would see over many generations as a result?

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Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-2

NGSS.MS-LS3-1

the adaptation of large strong jaws appears/ evolves from smaller jaws because this trait leads to...

• cooler looking beetles that reproduce more than smaller jawed beetles

• tougher beetles that reproduce less than the smaller jawed beetles

• beetles that out-compete smaller jawed beetles, and reproduce more

• beetles with big jaws because the female beetles want their offspring to have bigger jaws

Tags

NGSS.MS-LS4-4

NGSS.MS-LS1-4

The graph above show the composition of the claw size in a population of sloths living in a forest. The size of claws only has two variations: 3 inch claws and 5 inch claws. Which of the following statements accurately describes trends seen in the graph?

• Over time the percentage of the population with 3 inch claws increases while the percentage of the population with 5 inch claws decreases

• Over time the percentage of the population with 5 inch claws increases while the percentage of the population with 3 inch claws decreases

• Over time the percentage of the population with both claw types increased

• Over time both of the variations of claw size held their same percentage of the populations

Tags

NGSS.MS-LS4-4

Which two of the following statements are a possible explanation for the shift in the percentage of both claw size variations?

• after generation 60 animals with the two different claw lengths were separated and didn’t mate with each other any more

• after generation 10 the sloths stopped using nail clippers, this helped them survive more

• after generation 10 there was a change to the environment that made having larger claws help them survive more

• when the data was first being collected 3 inch claws were a favorable trait

Tags

NGSS.MS-LS4-4

NGSS.MS-LS1-5

NGSS.MS-LS2-4

Sloths live for an average of 20 years. Based on that figure, the graph above, and our discussions of evolution and adaptations, would you say that the acquiring of adaptations is a fast or slow process?

• Fast

• Slow

Tags

NGSS.MS-LS4-4

Litter is the term used to describe the multiple offspring born at one time, we often see this word used to describe puppies or kittens.

based on the graph we can see that over time the litter size is (increasing or decreasing)

(a)  

Tags

NGSS.3-LS1-1

this is a multiselect question. please select 3 correct choices for your answer

• sweet smell

• spreading through the wind

• nectar/ honey/ some type of food source

• foul/ bad odor

• bright colors

Tags

NGSS.MS-LS1-4

variation means

• similarities

• differences

Tags

NGSS.MS-LS4-4

NGSS.MS-LS4-2