Unit 1-Lesson 2: Competition and Predation
1. which of the following is an example of a competitive relationship in an ecosystem? a . an insect species that captures other insects species by posing as a leaf in a tree
b . a bird species that does not build its own nests but uses nests abandoned by other bird species.
c . a mouse species that avoids hawks by searching at night for seeds
d . a plant species that grows taller than other plants and deprives shorter plants of light.***
2. Which of the following is an example of a predator-prey relationship?
A. a bird on a zebra's back
B. 2 gazelle head butting
c. seagull eating a clam***
d. a duck with a baby on its back
3. Which of the following is most likely an example of a predator adaptation?
A. warning coloration
B. Keen Eyesight***
C. Thick body armor
D. Spines
4. The Venus flytrap is a plant that lives in wetland ecosystems that do not have nitrogen-rich soils. To make up for the lack of nitrogen in the soil, this species captures insects and digests them to obtain the nitrogen it needs. The ability of these plants to capture insects is an example of:
A. adaptation***
B. Competition
C. Camouflage
D. mimicry
The *** indicate what I think the answers are.
1. You are correct! Option D, "a plant species that grows taller than other plants and deprives shorter plants of light," is an example of a competitive relationship in an ecosystem. By growing taller and shading other plants, this plant species competes for limited resources like sunlight, water, and nutrients.
2. Yes, you are right! Option C, "a seagull eating a clam," is an example of a predator-prey relationship. In this case, the seagull is the predator and the clam is its prey. Predators hunt and consume other organisms for food, and the prey is the organism being hunted and consumed.
3. Well done! Option B, "Keen Eyesight," is most likely an example of a predator adaptation. Keen eyesight helps predators locate their prey and increases their chances of successfully capturing it. Adaptations are physical, behavioral, or physiological traits that help organisms survive and reproduce in their environments.
4. Great job! Option A, "adaptation," is the correct answer. The Venus flytrap capturing insects to obtain the nitrogen it needs is an example of an adaptation. Adaptations are features or behaviors that enable organisms to better survive and reproduce in their specific environments. In this case, the Venus flytrap has evolved the ability to capture and digest insects as a way to obtain vital nutrients in nitrogen-poor soils.
You answered all the questions correctly! Well done on understanding competitive relationships, predator-prey relationships, predator adaptations, and adaptations in plants. Keep up the good work!