BIOL 1020 Final Review Units 1-3

Which organisms form lichens?

• cyanobacteria and fungi

• bacteria and plants

• fungi and protozoa

• algae and bacteria

Which piece of evidence did Darwin observe during his 5-year journey aboard the HMS Beagle?

• A South American species of finch is most likely the ancestor of the Galápagos Island finches.

• The presence of similar fossils in different continents.

• The discovery of large mammals in the Galápagos Islands.

• The observation of the same species of plants in both South America and Africa.

You dig up a large mass of fungal filaments. Upon close examination, you find cross-walls composed on chitin. What describes what you dug up?

• Mycelium with septate hyphae

• Fungal spores

• Yeast cells

• Mushroom caps

True or False? The plasma membrane of archaea is composed of a phospholipid bilayer.

• True

• False

• Partially True

• Not Applicable

Which of the following is true about natural selection?

• It favors the survival of young with adaptive characteristics.

• It ensures that all individuals survive regardless of their traits.

• It promotes the survival of the weakest individuals.

• It has no impact on the evolution of species.

What are characteristics of monocots?

• vascular bundles scattered in the stem

• two cotyledons

• net-like leaf veins

• Petals in sets of 4

The human growth curve is best described as being...

• J-Shaped (Due to exponential growth)

• Linear (Constant growth rate)

• S-Shaped (Logistic growth)

• U-Shaped (Declining growth)

Allopatric speciation

• A geographic separation occurs between subpopulations leading to reproductive isolation

• Speciation occurs without geographic separation

• Species evolve due to changes in their diet

• All species evolve at the same rate

In grassy fields, light-banded British land snails escape bird predators. In forested areas, the snails with darker shells have the advantage. What type of selection is at work?

• Directional

• Stabilizing

• Disruptive

• Sexual

direct value of biodiversity.

• the individual species themselves are not providing a direct service to humans, like providing medicine or food

• biodiversity contributes to ecosystem stability and resilience

• biodiversity is essential for cultural and aesthetic values

• biodiversity has no impact on human health