Homeostasis and Feedback Mechanisms

Which of the following best describes homeostasis?

• The ability to produce heat and maintain a constant internal temperature

• Maintaining a completely unchanging internal body state

• The process of adjusting internal body conditions within a narrow range to maintain optimal functioning

• The ability to rapidly change internal body conditions to adapt to external changes

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NGSS.HS-LS1-3

If the environment gets to cold, we often shiver in order to

• Get frost bite

• Increase body temperature

• Lower body temperature

• None of the above

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NGSS.HS-LS1-3

Which of the following best describe a negative feedback loop

• A system where a change in a variable triggers a response that amplifiers the change further

• A system where a change in a variable triggers a response that counteracts the initial change bringing they system back to its set point

• A process that always leads to a rapid and drastic change in the system

• A mechanism that only functions in extreme conditions

Tags

NGSS.HS-LS1-3

What phase is the cell in

• Prophase

• Anaphase

• Metaphase

• Telophase

Tags

NGSS.HS-LS1-4

A cell with 18 chromosomes undergoes mitosis. Each daughter cell has _______ chromosomes

• 9

• 18

• 36

• 10

Tags

NGSS.HS-LS1-4

Cytokinesis begins after which phase

• Anaphase

• Metaphase

• Prophase

• Telophase

Tags

NGSS.HS-LS1-4

What structure attaches to the chromosomes and is responsible for their movement during mitosis

• Nucleolus

• Nuclear membrane

• Spindle

• Cytoplasm

Tags

NGSS.HS-LS1-4

Which answer gives the stages of mitosis in the proper chronological order

• Anaphase prophase metaphase telophase

• Metaphase anaphase telophase prophase

• Prophase metaphase anaphase telophase

• Interphase prophase anaphase telophase

Tags

NGSS.HS-LS1-4

what phase of mitosis

• Anaphase

• Metaphase

• Prophase

• Telophase

Tags

NGSS.HS-LS1-4

what does label two show

• Centromere

• Centriole

• Chromatid

• Chromatic

Tags

NGSS.HS-LS3-1