Mastery Machine

A population of beetles has individuals that are either green or brown, depending on certain genes. The green beetles are best able to hide from predators in lush, green vegetation. The brown beetles, on the other hand, are best able to hide on bare, brown soil. A period of drought reduces the amount of plant growth one year. How is this change most likely to affect the beetle population?

• The number of brown beetles will decrease.

• The number of brown beetles will increase.

• The number of green beetles will increase.

• The number of green beetles will decrease.

Tags

8.11B

Scientists gathered the following data on lizard populations for several years. The results are shown in the table. Which environmental factor most likely contributes to the change in lizard population? 

• increase in available water and food

• increase in shelter

• increase in predators

• increase in light

Tags

8.11B

Identify the characteristics that can be inferred about this animals niche as a nocturnal predator.

• Hunts live prey at night
  Tree dweller
  Excellent night vision
  Grasping talons

• Hunts live prey at night
  Eats Fruit
  Tree dweller
  Scavenges from dead carcases

• Catches most prey at midday
  Eats fruit
  Tree dweller
  Grasping talons

• Eats Fruit
  Tree dweller
  Catches most prey at midday
  Grasping talons

Tags

8.11B

How do oil spills affect the environment?

• They do not affect the environment.

• They have a minimal impact on the environment.

• They pollute the environment and reduce populations of organisms.

• The pollute the environment but increase populations of organisms.

Tags

8.11B

Which letter represents amplitude? (a)  

• A

• B

• C

• D

• E

Tags

NGSS.MS-PS4-1

Why does a can collapse when a vacuum pump removes air particles from the can?

• The force from pressure inside the can and force from atmospheric pressure outside the can are balanced.

• The force from pressure inside the can and force from atmospheric pressure outside the can are unbalanced, atmospheric pressure is greater than internal pressure.

• The force from pressure inside the can and force from atmospheric pressure outside the can are unbalanced, atmospheric pressure is less than internal pressure.

• Balanced and unbalanced forces are not the reason the can collapsed.

Tags

NGSS.MS-PS2-2

A 1.00 L volume of dry air is sealed inside of a round flask and brought to a temperature of 50.0°C in a hot water bath. If the pressure gauge reads 3.60 atm, which mathematical routine would you use to successfully determine the number of moles of gas in the sample of air?

• n = (3.60 atm) (1.00 L) / (0.0821 L·atm / mol·K) (50.0 K)

• n = (0.0821 L·atm / mol·K) (50.0 K) / (3.60 atm) (1.00 L)

• n = (3.60 atm) (1.00 L) / (0.0821 L·atm / mol·K) (323 K)

• n = (0.0821 L·atm / mol·K) (323 K) / (3.60 atm) (1.00 L)

Which of the following diagrams correctly illustrates the reaction mixture after the reaction goes to completion?

Tags

NGSS.HS-PS1-7

What is the primary function of a 'Mastery Machine' in scientific research?

• To automate data analysis

• To enhance human cognitive abilities

• To simulate natural phenomena

• To improve experimental accuracy

Which scientific principle is most likely to be utilized by a 'Mastery Machine' designed for data interpretation?

• Heisenberg's Uncertainty Principle

• Bayesian Inference

• Newton's Third Law

• Mendelian Genetics