Midterm Review 2018 B Question Preview (ID: 45172)
Life Science.
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The lysosome is to the cell as the _______ is to a factory.
a) the boss
b) the security fence
c) janitor
d) the factory floor
What term refers to the movement of molecules from an area of higher concentration to an area of lower concentration?
a) collision
b) diffusion
c) active transport
d) concentration
Which term refers to the diffusion of water molecules through a selectively permeable membrane?
a) osmosis
b) engulfing
c) active tansport
d) passive transport
Which term refers to the movement of materials through a cell membrane without using the cell’s energy?
a) concentration
b) collision
c) active transport
d) passive transport
consumers that eat both plants and animals are called
a) herbivores
b) omnivores
c) carnivores
d) scavengers
The many overlapping food chains in an ecosystem make up a(n)
a) a food web
b) niche
c) energy pyramid
d) feeding level
All plants are
a) unicellular
b) heterotrophs
c) eukaryotes
d) prokaryotes
The smallest unit of ecological organization is a single
a) population
b) organism
c) community
d) ecosystem
The largest population that an environment can support is called its
a) carrying capacity
b) limiting factor
c) birth rate
d) death rate
Which organism is likely to be at the beginning of a food chain for a pond ecosystem?
a) sunfish
b) freshwater shrimp
c) paramecium
d) green algae
We get energy from food. The energy in the food first comes from
a) nutrients in the soil left by decomposers
b) the fertilizers used by farmers to make plants grow faster
c) the vitamins and minerals added by food manufacturers
d) the sun's energy trapped in food by producers
Which of the following is NOT used to make glucose in photosynthesis?
a) H2O
b) O2
c) CO2
d) light energy
The equation: CO2 + H2O + light energy ------- C6H12O6 + O2 is
a) cellular respiration
b) photosynthesis
c) fermentation
d) exocytosis
_________ trees produce seeds in cones and do NOT lose their leaves in the fall.
a) Tropical
b) Coniferous
c) Deciduous
d) Biotic
When a flea is living on a dog, the dog is the
a) parasite
b) host
c) predator
d) prey
Parasitism occurs when one organism benefits from an interaction and the other organism:
a) also benefits
b) is not affected
c) is negatively affected or killed
d) always dies
Grass that gains energy from the sun is an example of a
a) consumer
b) decomposer
c) parasite
d) producer
A major factor used to classify biomes is
a) the climate in the region
b) the sources of water present
c) the surface area of the region
d) the number of people that live there
Which organelle is the control center of a cell?
a) mitochondria
b) ribosome
c) nucleus
d) chloroplast
Animals that eat a variety of meats, fruits, and vegetables are
a) producers
b) herbivores
c) omnivores
d) carnivores
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