Quarter 2 Exam Review

Sophia and Ethan are planning to get a pet that doesn't need feeding and can bask in the sunlight, requiring only a little watering now and then. Which pet should they choose?

• A producer, such as a fern.

• An herbivore, such as a cow.

• A predator, such as a squirrel.

• A parasite, such as a mosquito.

While playing at the ball field, Lily and Arjun notice the vibrant green color of the grass and trees. What does this lush green color reveal about these amazing organisms?

• Producers use photosynthesis to harvest energy from sunlight.

• Producers use the pigment chlorophyll to absorb the energy from sunlight.

• Producers absorb water through their roots to use in photosynthesis reactions.

• Producers get the matter that makes up their cells from water and carbon dioxide.

Imagine Ava and Sophia are marine biologists on a mission! They decide to return a sea star to the tidal pools. What exciting change might they observe?

• Biodiversity would increase because sea stars control prey populations, allowing more species to coexist.

• Biodiversity would decrease because sea stars control prey populations, allowing fewer species to coexist.

• Biodiversity would increase because sea stars increase prey populations, allowing more species to coexist.

• Biodiversity would decrease because sea stars decrease prey populations, allowing fewer species to coexist.

Imagine you're a detective in the tide pool ecosystem! Why is the sea star your prime suspect as the keystone species?

• Biodiversity increases when the sea star is present.

• Biodiversity decreases when the sea star is present.

• Biodiversity remains steady when the sea star is present.

• The effects on the ecosystem cannot be determined based on the data provided.

Zoe and Liam are conducting a fun experiment with the plant Elodea to see how it dances with oxygen bubbles! Predict how the number of oxygen bubbles will change as they move the light source closer or farther from Elodea.

• Oxygen bubble production will not change with distance from the light source.

• Oxygen bubble production will decrease as distance decreases.

• Oxygen bubble production will increase as distance increases.

• Oxygen bubble production will increase as distance decreases.

Luna and Aiden are on a quest to discover how a giant sequoia tree becomes one of the largest organisms on Earth. Can you help them figure it out?

• The tree absorbs water through its roots to make its own matter.

• The tree takes up carbon dioxide from the surroundings to make its own matter.

• The tree transforms the matter in sugar and oxygen through photosynthesis to make its own matter.

• The tree transforms the matter in water and carbon dioxide through photosynthesis to make its own matter.

Imagine you're on a thrilling adventure with Abigail, Michael, and Noah in the magical forests of Madagascar. What could happen if the enchanting Madagascar periwinkle and other magical plants vanished forever?

• increase in biodiversity and loss of species with specialized niches

• loss of biodiversity and increase in species with specialized niches

• loss of biodiversity and less resources for solving societal problems

• increase in biodiversity and more resources for solving societal problems

Arjun and Samuel are on an adventurous quest to study the biodiversity of bats in two mysterious ecosystems. Which ecosystem do you think is more diverse based on the intriguing pie charts they discovered?

• Ecosystem 2, because it has more total bats observed.

• Ecosystem 1, because there is a greater proportion of one species.

• Ecosystem 1, because it has the greatest number of bat species.

• Ecosystem 2, because the proportions of different bat species are similar.

Charlotte and Noah are on a mission to save the kelp forests! As sea otters, they know they're the superheroes of the ocean, keeping the sea urchin villains in check. What is the BEST way for them to protect their underwater kingdom's biodiversity?

• Improve the kelp habitat.

• Protect sea otters from hunting.

• Increase the sea urchin population.

• Raise and release sea otters into the wild.

In a lively forest ecosystem, Isla and Arjun are on an adventure to explore the food chain. They come across rattlesnakes and wonder, how do these slithery creatures affect the deer mice population?

• Rattlesnakes directly cause deer mice populations to decline.

• Rattlesnakes indirectly cause deer mice populations to decline.

• Rattlesnakes directly cause deer mice populations to increase.

• Rattlesnakes indirectly cause deer mice populations to increase.