Homeostasis Storyline

This cell organelle helps organisms maintain homeostasis by controlling what substances may enter or leave cells.

• vacuole
• nucleus
• cell membrane
• cell wall

Human impacts that have caused changes in ocean pH include:

• Burning of fossil fuels

• Deforestation

• Agricultural runoff

• All of the above

Oceans become more acidic because:

• they absorb more carbon dioxide from the atmosphere.

• they release more oxygen into the atmosphere.

• they increase in temperature.

• they decrease in salinity.

The purpose of photosynthesis is to:

• produce oxygen and glucose

• consume carbon dioxide and water

• generate energy for plants

• absorb sunlight for growth

The purpose of cellular respiration is to:

• produce oxygen

• generate energy in the form of ATP

• create glucose

• store carbon dioxide

What do sea otters eat?

• Seaweed

• Fish

• Crabs

• Sea urchins

What happens if sea otters are removed from the ocean ecosystem?

• The ecosystem becomes more balanced

• Kelp forest ecosystems may suffer due to unchecked sea urchin populations

• There is no significant impact on marine ecosystems

• Increased fish populations due to fewer predators

How do organisms respond to biotic/abiotic factors and internally regulate themselves?

• Through behavioral changes

• By altering their genetic makeup

• Maintaining homeostasis

• None of the above

An organism that can make its own food

• autobot

• heterotroph

• autotroph

• heterobot

Location inside of a plant cell where the process of photosynthesis occurs.

• nodules

• stomata

• chloroplasts

• chlorophyll