Baumann's Science Review Question Preview (ID: 41913)
7th Grade Benchmark Review.
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Function or job of a chromosome
a) determine inherited traits
b) respiration
c) perspiration (sweat)
d) storage of food, water or waste
If a plant is “phototropic”, that means it bends toward ---.
a) light
b) gravity
c) water
d) Mrs. Baumann
Which is an advantage (+) of sexual reproduction? :)
a) diverse offspring better chance of survival (natural selection) when environment changes
b) uniform offspring are cuter
c) it is fast
d) it is efficient
Plants changing radiant energy into chemical energy during
a) photosynthesis
b) respiration
c) winter
d) an eclipse
How does a pre-existing cell make another cell (or how do cells reproduce)?
a) by division of pre-existing cells (it divides)
b) respiration
c) selective breeding
d) digestion
In a freshwater biome, ponds and nearby rivers have
a) ALL of the same plants and animals
b) SOME of the same plants and animals
c) NONE of the same plants and animals
d) Mermaids and dragons
Adaptations of the finches beaks and tortoises shells on the Galapagos Islands where caused by
a) natural selection
b) selective breeding
c) extinction
d) Mrs. Baumann
What do genes on chromosomes found in the nucleus do?
a) determine inherited traits
b) store water, food and waste
c) make glucose
d) transform chemical into heat/thermal energy
What oval shaped organelle uses sunlight to make food?
a) chloroplasts
b) mitochondria
c) vacuoles
d) lysosomes
Which would result in diverse offspring: (divers means different)
a) budding
b) binary fission
c) regeneration
d) sperm fertilizes egg
The cell organelle that absorbs oxygen and releases carbon dioxide (the lungs of the cell)
a) mitochondria
b) vacuole
c) cytoplasm
d) cell wall
The main function of the lungs is __.
a) respiration
b) perspiration
c) reproduction
d) digestion
Food, waste and other materials are TRANSPORTED to and from cells by which body system?
a) circulatory
b) respiratory
c) digestive
d) none of these answers is correct
Acids and enzymes break down food in __ digestion.
a) chemical
b) physical
c) mechanical
d) none of these answers is correct
During succession, stable trees and shrubs are found in which:
a) pioneer community
b) climax community
c) intermediate community
d) pioneer species
Which is the LEAST COMPLEX level of organization in living things?
a) cell
b) tissue
c) organ
d) organ system
Xylem is straw-like tissue in the stems of plants. What does XYLEM do?
a) transports water
b) photosynthesis
c) stores water, food, or waste
d) eat flies
High biodiversity is a _____ number of individual plants and animals, AND _____ different species in an ecosystem.
a) large, many
b) large, few
c) small, many
d) small, few
Warm blooded organisms maintain body temperature by transforming ______ energy of food into _______ energy
a) chemical, thermal/heat
b) kinetic, chemical
c) nuclear, electrical
d) electrical, solar
Stomach acid and saliva enzymes are used in what type of digestion that converts food into new substances?
a) chemical
b) physical
c) mechanical
d) none of these answers is correct
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