Question 1

Which of the following best describes the trade-off between growth and reproduction in organisms?

Accepted Answer

Bigger adults have more offspring, but taking longer to grow increases the risk of not surviving to reproduce.

Question 2

According to the energy budget diagram, what is the primary allocation of total energy intake after maintenance needs are met?

Accepted Answer

It is divided between growth and reproduction as surplus energy.

Question 3

Which life history strategy is most likely to be found in a stable, crowded, and predictable habitat?

Accepted Answer

Equilibrialist

Question 4

What is the expected survivorship curve for an equilibrialist species?

Accepted Answer

Type I

Question 5

Which reproductive strategy maximizes fitness when parental survivorship is low?

Accepted Answer

Semelparity

Question 6

In the context of ecological succession, which type of species typically colonizes an area first after a disturbance?

Accepted Answer

Opportunist species

Question 7

Which of the following is NOT a trait of an opportunist species?

Accepted Answer

Large offspring

Question 8

If an organism invests heavily in a single reproductive episode and produces many small offspring, which life history strategy does it most likely follow?

Accepted Answer

Semelparity

Question 9

Which equation best represents the relationship between total energy intake ($$E_{total}$$), maintenance ($$E_{maintenance}$$), and surplus energy ($$E_{surplus}) $$available for growth and reproduction?

Accepted Answer

$$E_{total} = E_{maintenance} + E_{surplus}$$

Question 10

Which of the following scenarios best illustrates a reproductive trade-off?

Accepted Answer

A species produces many small offspring with little parental care.

Question 11

Why do giant pandas need to eat large amounts of bamboo daily?

Accepted Answer

Bamboo has very low nutritional quality, requiring high intake to meet energy needs.

Question 12

Which prediction is supported if giant pandas have a digestive tract similar to carnivores?

Accepted Answer

Adaptation to bamboo diet has occurred without major changes in digestive tract morphology.

Question 13

Which of the following best describes the relationship between annual survival and generation time?

Accepted Answer

Species with higher annual survival tend to have longer generation times.

Question 14

In primary succession, what is the starting point for community development?

Accepted Answer

Bare rock

Question 15

Which of the following is a trait of equilibrialist species?

Accepted Answer

Longer lifespan and larger offspring

Question 16

What is the main difference between semelparity and iteroparity?

Accepted Answer

Semelparity involves a single reproductive episode, while iteroparity involves multiple episodes.

Question 17

Which of the following best explains why early successional species are typically opportunists?

Accepted Answer

They can rapidly colonize empty spaces due to fast growth and high fecundity.

Question 18

If a population of fairy shrimp in a vernal pool exhibits semelparity, what does this mean for their reproductive strategy?

Accepted Answer

They reproduce once and then die.

Question 19

Which of the following equations correctly expresses fecundity ($$F) as $$the product of the number of reproductive episodes ($$n) $$and the number of offspring per episode ($$o$$)?

Accepted Answer

$$F = n 	imes o$$

Question 20

Why might giant pandas be constrained to have a carnivore-type digestive tract despite their herbivorous diet?

Accepted Answer

Their evolutionary ancestry as carnivores limits morphological changes in their digestive system.

Life History Strategies, Energy Budgets, and Resource Allocation in Organisms

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