Biology 1
This branch of Biology deals with interactions among and between organisms and their environment.
a. Ecology
b. economy
c. ecosystem
d. biome
a. ECOLOGY
Each of the following is an abiotic factor in the environment EXCEPT
a. rainfall
b. soil type
c. temperature
d. plant life
d. PLANT LIFE
When a predator easts its prey, how much of the energy from the prey is transferred into the biomass of the predator?
100%
25%
10%
50%
10%
The cycling of elements/molecules between living and nonliving parts of the ecosystem are
a. community
b. decomposers
c. biogeochemical cycles
d. carnivores
c. BIOGEOCHEMICAL CYCLES
What flows through a food chain
a. heat
b. vitamins
c. energy
d. water
c. ENERGY
The combined portions of Earth in which all living things exist is called the
a. biome
b. Biosphere
c. population
d. atmosphere
b. BIOSPHERE
Which is a biotic factor that affects the size of a population in a specific ecosystem?
a. type of soil in the ecosystem
b. average temperature of the ecosystem
c. concentration of oxygen in the ecosystem
d. number and kinds of predators in the ecosystem
d. number and kinds of predators in the ecosystem
Ants keep herbivores away from acacia trees. Acacia trees provide ants with food and shelter. This is an example of
a. predation
b. parasitism
c. mutualism
d. commensalism
c. MUTUALISM
What is used to indicate the flow of energy in the food chain?
a. --- hash marks
b. = equal
c. --->. Arrow
d. ^ up arrow
c. --->. Arrow
Sunlight doesn't reach the deep ocean, microbes have evolved a process called
a. methane
b. chemosynthesis
c. photosynthesis
d. evolution
b. CHEMOSYNTHESIS
All of the members of a particular species that live in one area are called a(n)
a. biome
b. population
c. community
d. ecosystem
b. POPULATION
The relationship between a rabbit and a snake is?
a. predation
b. parasitism
c. mutualism
d. commensalism
a. PREDATION
Tapeworms live inside dog intestines and use nutrients the dog takes in. The tapeworms make the dog sick and weak. This is an example of
a. predation
b. parasitism
c. mutualism
d. commensalism
b. PARASITISM
What is the third trophic level called
a. producers
b. primary consumers
c. secondary consumers
d. Tertiary consumers
d. TERTIARY CONSUMERS
Mutualism is a relationship in which both species benefit
True.
False
TRUE
What is the original source of almost all the energy in most ecosystems?
a. water
b. carbon
c. sunlight
d. carbohydrates.
c. SUNLIGHT
The symbiotic relationship between a flower and the insect that feeds on its nectar is an example of
a. predation because the insect feeds on the flower
b parasitism because the insect lives off the nectar from the flower
c. mutualism because the flower provides the insect with food, and the insect pollinates the flower.
d. commensalism because the insect does not harm the flower and the flower does not benefit from the relationship
c. mutualism because the flower provides the insect with food, and the insect pollinates the flower.
Birds nesting on the branches of trees get a safe place for raising their young. The trees are unaffected. This is an example of
a. predation
b. mutualism
c. parasitism
d. commensalism
d. COMMENSALISM
Which of the following best describe a plant?
a. Autotrophs
b. Heterotrophs
c. Quaternary
d. decomposers
a. AUTOTROPH
What consumers eat tertiary consumers
a. Quaternary consumers
b. Herbivores
c. primary consumers
d. Secondary consumers
a. QUARTERNARY CONSUMERS
Which of the following is not a nitrogenous base in RNA?
a. Adenosine
b. Thymine
c. Cytosine
d. Guanine
d. THYMINE
The carrying capacity of a population is the minimum number of individuals that is needed to prevent a population from disappearing.
TRUE or FALSE
FALSE
Organisms that cause decay by breaking down dead matter into raw nutrients are called
a. autotrophs
b. heterotrophs
c. decomposers
d. omnivores
c. DECOMPOSERS
Which body system is responsible for decision making and motor skills?
a. Nervous System
b. Muscular System
c. Digestive System
d. Cardiovascular system
a. Nervous System
This is a close relationship between two different species of organisms living together
a. Commensalism
b. Mutualism
c. Symbiosis
d. Parasitism
c. SYMBIOSIS