ASVAB General Science Biology and Ecology Flashcards
6 cards from real ASVAB practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 6 ASVAB General Science Biology and Ecology flashcards as text
What type of ecological succession occurs on bare rock or new land where no soil exists?
Answer: Primary succession
Primary succession occurs in lifeless areas where there is no soil, such as after a volcanic eruption or on bare rock. It begins with pioneer species like lichens that help create soil over time.
Which cellular process converts glucose into ATP without using oxygen?
Answer: Anaerobic respiration
Anaerobic respiration (fermentation) is the process of producing ATP from glucose without oxygen. It is less efficient than aerobic respiration but allows cells to generate energy when oxygen is unavailable.
What is the function of the cell membrane?
Answer: Regulate what enters and exits the cell
The cell membrane (plasma membrane) is a selectively permeable barrier that controls the movement of substances in and out of the cell, maintaining homeostasis.
Which of the following best describes an ecosystem?
Answer: All living and nonliving things in an area interacting together
An ecosystem includes all living organisms (biotic factors) and nonliving components (abiotic factors) in a given area, along with their interactions.
What is the process by which water moves from roots to leaves in a plant?
Answer: Transpiration
Transpiration is the process by which water is absorbed by roots, moves up through the xylem, and evaporates from the leaves. This creates a pull that draws water upward through the plant.
Which kingdom includes organisms that are unicellular, prokaryotic, and lack a nucleus?
Answer: Bacteria
Bacteria (and Archaea) are prokaryotic organisms that lack a membrane-bound nucleus. They are unicellular and represent some of the oldest and most abundant life forms on Earth.