Intro to Life Midterm (AP)

Homeostasis relates to _

• Survival

• Reproduction

• Both answers are correct

What causes changes in organisms?

• External stimuli

• Internal stimuli

• Both answers are correct

What are sensors?

• Receptors that detect changes in organisms

• Structures that process sensory information in organisms

• Structures that allow for appropriate responses to detected changes

• Molecules that reduce the likelihood of survival

• Tissues that reduce the likelihood of reproduction

What are control centers?

• Receptors that detect changes in organisms

• Structures that process sensory information in organisms

• Structures that allow for appropriate responses to detected changes

• Molecules that reduce the likelihood of survival

• Tissues that reduce the likelihood of reproduction

_ organisms contain control centers

• Complex

• Simple

• Both answers are correct

What are effectors?

• Receptors that detect changes in organisms

• Structures that process sensory information in organisms

• Structures that allow for appropriate responses to detected changes

• Molecules that reduce the likelihood of survival

• Tissues that reduce the likelihood of reproduction

What occurs in negative feedback? Select 2

• An organism’s conditions are returned to an ideal point

• An organism’s conditions are distanced from an original point

• A change is reversed

• A change is embraced

• Survival and/or reproduction is disrupted

Which of the following is a key feature of negative feedback?

• Once the change is reversed, the mechanism is shut down

• The change is embraced in an amplified manner with conditions changing rapidly

• Once the change is reversed, the mechanism is activated

• The change is embraced in a reduced manner with conditions changing slowly

• The organism suffers from the negative action of the mechanism

What occurs in positive feedback? Select 2

• An organism’s conditions are returned to an ideal point

• An organism’s conditions are distanced from an original point

• A change is reversed

• A change is embraced

• Survival and/or reproduction is disrupted

Which of the following is a key feature of positive feedback?

• Once the change is reversed, the mechanism is shut down

• The change is embraced in an amplified manner with conditions changing rapidly

• Once the change is reversed, the mechanism is activated

• The change is embraced in a reduced manner with conditions changing slowly

• The organism benefits from the positive action of the mechanism