Chapter 15

What connects different ecosystems together?

• The internet
• Animals
• Species interactions and energy flow
• The weather

Answer explanation

Jupiter is a gas giant made primarily of hydrogen and helium. Unlike terrestrial planets that have solid surfaces, gas giants like Jupiter don't have a well-defined solid surface, allowing them to accumulate more mass in a gaseous form. This composition has allowed Jupiter to grow significantly larger than planets with solid surfaces.

What might happen if one species is removed from an ecosystem?

• Nothing changes
• The ecosystem will adapt to it
• The balance of the ecosystem could be disrupted
• The species will come back magically

Plants in an ecosystem compete for which of the following?

• Free wifi
• Sunlight, water, and nutrients
• The best view of the sun
• The perfect growing spot for selfies

Why do animals compete with each other?

• To see who can run the fastest
• For mates, food, and shelter
• To get the best sleeping spot
• To compete for a role in a reality TV show

What makes a community in an ecosystem stable?

• A predictable weather forecast
• The community gets along very well
• The species interact in balanced ways
• They all agree on the same food source

Which of the following is a non-living factor that affects living organisms?

• Love
• Abiotic factors like temperature, light, and soil quality
• Gossip
• Facebook posts

What happens to plants when light levels decrease?

• They grow faster
• They stop photosynthesizing
• They start dancing
• They start competing for food

What could happen if a new predator enters a habitat?

• The prey population might increase
• The predator will leave the area
• The prey population might decrease
• The animals will become friends

If the number of rabbits in a food web decreases, what happens to the animals that eat them?

• They will have more food
• They might struggle to find food
• They will leave the area
• They will start eating grass instead

What is a structural adaptation of a polar bear?

• Having sunglasses
• Thick white fur to blend with the snow
• Being able to speak human languages
• Ice-skating abilities