Question

1. which of the following describes k - strategists? a. produce thousands of eggs with low survival rates b. few offspring with high parental care c. short lifespan and rapid reproduction d. many offspring with little parental care 21. which type of data is 4.2 inches of rainfall? a. quantitative b. qualitative c. relative d. subjective 22. koalas depending on eucalyptus trees are considered: a. omnivores b. specialists c. generalists d. decomposers 23. which of the following is a scavenger? a. oak tree b. vulture c. grasshopper d. deer 24. what is competitive exclusion? a. when one species eliminates another from a niche b. when predators switch prey c. when two species share resources equally d. when parasites kill their host 25. which energy type is lost between trophic levels? a. chemical b. heat c. light d. mechanical 26. what is natality? a. reproductive potential b. population size c. death rate d. birth rate 27. what do decomposers do? a. break down dead organisms and recycle nutrients b. absorb sunlight for energy c. hunt prey d. consume only plants 28. which sphere includes rocks and soil? a. hydrosphere b. cryosphere c. geosphere d. atmosphere 29. which sphere includes all water on earth? a. geosphere b. hydrosphere c. atmosphere d. biosphere 30. which is an abiotic factor? a. grass b. fish c. temperature d. bacteria 31. which curve shows exponential growth? a. s - shaped curve b. j - shaped curve c. flat line d. linear curve

Explanation:

• Question 20: K - strategists have few offspring but high parental care to ensure offspring survival.
• Question 21: '4.2 inches of rainfall' is numerical data, so it is quantitative.
• Question 22: Koalas that depend only on eucalyptus trees are specialists as they have a narrow food - source niche.
• Question 23: Vultures feed on dead animals, making them scavengers.
• Question 24: Competitive exclusion is when one species out - competes and eliminates another from a niche.
• Question 25: Heat energy is lost between trophic levels due to metabolic processes.
• Question 26: Natality is defined as the birth rate.
• Question 27: Decomposers break down dead organisms and recycle nutrients back into the ecosystem.
• Question 28: The geosphere includes rocks and soil.
• Question 29: The hydrosphere includes all water on Earth.
• Question 30: Temperature is an abiotic factor, while grass, fish, and bacteria are biotic.
• Question 31: A J - shaped curve represents exponential growth.

Answer:

1. B. Few offspring with high parental care
2. A. Quantitative
3. B. Specialists
4. B. Vulture
5. A. When one species eliminates another from a niche
6. B. Heat
7. D. Birth rate
8. A. Break down dead organisms and recycle nutrients
9. C. Geosphere
10. B. Hydrosphere
11. C. Temperature
12. B. J - shaped curve