Question 1

Which of the following is a shared synapomorphy that unites all animals within the animal kingdom?

Accepted Answer

Multicellularity with specialized tissues

Question 2

Fungi play a crucial role in ecosystems due to their morphology. Which adaptation allows fungi to efficiently absorb nutrients from their environment?

Accepted Answer

Development of hyphae with high surface area

Question 3

During the Cambrian explosion, several major milestones in animal evolution occurred. Which of the following best describes one of these milestones?

Accepted Answer

Development of bilateral symmetry and complex body plans

Question 4

Which equation would you use to model exponential population growth in a species with unlimited resources?

Accepted Answer

$$N_{t+1} = N_t + rN_t$$

Question 5

A population of deer in a forest is limited by food availability. Which type of population regulation is this an example of?

Accepted Answer

Density-dependent regulation

Question 6

Which of the following best describes the difference between fundamental and realized niches?

Accepted Answer

Fundamental niche is the full range of environmental conditions a species can tolerate, while realized niche is where it actually exists due to competition and other biotic factors

Question 7

Which of the following is NOT a type of interspecific interaction found in ecological communities?

Accepted Answer

Autotrophy

Question 8

A researcher observes that a bird species forages in a way that maximizes energy intake per unit time. Which behavioral ecology concept does this illustrate?

Accepted Answer

Optimal foraging theory

Question 9

Which of the following equations represents logistic population growth, where $$K is $$the carrying capacity?

Accepted Answer

$$\Delta N = rN \left(1 - \frac{N}{K}\right)$$

Question 10

Which of the following is a major threat to biodiversity caused by human activity?

Accepted Answer

Habitat destruction

Question 11

Which process is responsible for the cycling of carbon between the atmosphere and living organisms?

Accepted Answer

Photosynthesis and cellular respiration

Question 12

In a food web, what is the role of a keystone species?

Accepted Answer

A species whose impact on its community is disproportionately large relative to its abundance

Question 13

Which of the following best describes the concept of net primary productivity (NPP) in an ecosystem?

Accepted Answer

The energy available to consumers after producers have met their own metabolic needs

Question 14

Which of the following is an example of a density-independent factor affecting population size?

Accepted Answer

A severe drought

Question 15

Which of the following is a plausible consequence of anthropogenic global climate change on ecosystems?

Accepted Answer

Altered species distributions and reduced ecosystem function

Question 16

Which of the following is a correct sequence of trophic levels in a terrestrial food chain?

Accepted Answer

Producer → Primary consumer → Secondary consumer → Tertiary consumer

Question 17

Which of the following is a real-world example of mutualism?

Accepted Answer

Bees pollinating flowers while obtaining nectar

Question 18

Which of the following best describes the process of ecological succession?

Accepted Answer

The gradual change in species composition in a community over time

Question 19

Which of the following is a strategy that can help mitigate the major threats to biodiversity?

Accepted Answer

Establishing protected areas and wildlife corridors

Question 20

A population of rabbits has a birth rate of 0.2 per year and a death rate of 0.1 per year. What is the per capita growth rate $$r$$?

Accepted Answer

$$r = 0.1$$

General Biology II: Final Exam Study Guide – Fungi, Animal Diversity, Ecology, and Ecosystems

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