FREE BIOLOGY AND STUDY GAMES ABOUT UNIT 8 EXAM

PDF Download

FREE BIOLOGY AND STUDY GAMES ABOUT UNIT 8 EXAM

QUESTIONS

Actual Qs and Ans Expert-Verified Explanation

This Exam contains:

-Guarantee passing score -34 Questions and Answers -format set of multiple-choice -Expert-Verified Explanation

Question 1: Carnivores

Answer:

Eats other consumers

Question 2: Autotroph

Answer:

An organism that obtains organic food molecules (ex: glucose) without eating; first trophic level in an ecosystem

Question 3: Secondary consumer

Answer:

An organism that eats the first consumer; a carnivore or omnivore

Question 4: Primary consumer

Answer:

An organism that eats plants or other autotrophs; a herbivore or omnivore

Question 5: Logistic growth

Answer:

Population growth that levels off as population size approaches carrying capacity

Question 6: Carrying capacity

Answer:

The maximum population size that can be supported by the available resources; symbolized as K

Question 7: Commensalism

Answer:

A relationship between two organisms in which one organism benefits and the other is unaffected

Question 8: Inorganic

Answer:

Not consisting of or deriving from living matter; ex: ammonia, hydrogen sulfide, methane

Question 9: Herbivory

Answer:

An interaction in which an organism eats parts of a plant or algae

Question 10: Chemosynthesis

Answer:

The process of using energy derived from inorganic molecules to produce carbohydrates or food

Question 11: Detritivore/ decomposers

Answer:

A consumer that derives its energy and nutrients from nonliving organic material such as corpses, fallen plant material, and the wastes of living organisms

Question 12: Mutualism

Answer:

A symbiotic relationship in which both organisms benefit

Question 13: Endotherm

Answer:

An organism that is internally warmed by a heat-generating metabolic process; warm blooded

Question 14: Limiting factor

Answer:

A factor that restrains growth of a population

Question 15: Photosynthesis

Answer:

The process of using energy from sunlight to produce carbohydrates or food

Question 16: Density-dependent factor

Answer:

Are factors where the effects on the size or growth of a population vary with the density of the

population itself; ex: competition for resources, predation, or disease

Question 17: Biotic factor

Answer:

Living component of an ecosystem

Question 18: Keystone species

Answer:

A species that is not necessarily abundant in a community yet exerts strong control on community structure by the nature of its ecological role or niche

Question 19: Parasitism

Answer:

A symbiotic relationship in which one organism, the parasite, benefits at the expense of another, the host, by living within or on the host

Question 20: Population

Answer:

A group of individuals of the same species that live in the same area

Question 21: Community

Answer:

All the organisms that inhabit a particular area

Question 22: Ectotherm

Answer:

Ectotherm

Question 23: Invasive species

Answer:

Species that have been introduced, or moved, by human activities to a location they do not naturally occur and cause ecological problems

Question 24: Trophic level

Answer:

A feeding level in an ecosysem

Question 25: Cellular respiration

Answer:

The process of breaking down organic molecules to produce ATP

Question 26: Omnivores

Answer:

Eats both consumers and producers

Question 27: Exponential growth

Answer:

Growth of a population in an ideal, unlimited environment; represented by a J-shaped curve when population size is plotted over time

Question 28: Biodiversity

Answer:

The variety of life in the world or in a particular habitat or ecosystem