Baumann's Big Science Questions Question Preview (ID: 48410)
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Cells are the least complex level of organization, and cells come from
a) pre-existing cells, by cell division
b) water
c) spontaneous generation (just appear)
d) germs
Least complex level of organization in humans
a) cell
b) tissue
c) organ
d) organ system
Xylem is a tissue in plants that
a) transports water
b) transport food (glucose sugar)
c) absorbs carbon dioxide
d) releases oxygen
Main function of respiratory system
a) exchanges oxygen and carbon dioxide
b) produces oxygen
c) excretes waste
d) movement
Vacuoles in a cell
a) store water, food and waste
b) release energy from food
c) photosynthesize
d) control reproduction
structure means part, function means
a) job
b) color
c) reproduction
d) type or kind
Uses light energy to make food for a plant (chemical change)
a) chloroplast
b) pre-existing cell
c) vacuole
d) organ system
Nutrients (food), waste and other materials are all transported through the body by the
a) circulatory (cardiovascular) system
b) excretory system
c) respiratory system
d) digestive system
All cells use energy and excrete waste. Mitochondria use oxygen and excrete CO2 during
a) a chemical change: chemical energy becomes thermal and mechanical energy
b) a physical change that releases body waste making cells smaller
c) the chemical change of photosynthesis: light/radiant energy into chemical energy/food
d) a chemical change: thermal energy becomes nuclear and radiant/light energy
Shivering warms the body. Sweat (perspiration)
a) cools the body's temperature
b) warms the body's temperature
c) increases your heart rate
d) causes heavy breathing
Which results in offspring different from parent cells (not an identical clone)
a) a sperm cell fertilizing an egg cell
b) any cell splitting/dividing
c) hydra budding asexually
d) skin cells dividing to repair a cut in skin
Heredity is
a) genetic material (DNA) passed from generation to generation
b) the storage of food, water and waste
c) light energy being transformed to chemical energy
d) using energy and excreting wastes
Chromosomes are sometimes x-shaped, with stripes called genes that
a) determine inherited traits
b) control body temperature
c) transform chemical energy to mechanical and thermal energy
d) use energy and excrete wastes
Primary succession is ecological succession that begins in a place that ________________________.
a) does not have soil
b) does not have rock
c) already has simple plants such as moss
d) already has soil
Which of the following is an example of ecological succession?
a) gradual change from a pioneer community to a climax community
b) primary succession
c) secondary succession
d) all of these are correct
What are two kinds of ecological succession?
a) Climax community and pioneer community
b) Pioneer species and pioneer community
c) Primary and Secondary
d) Biotic and Abiotic
How much energy is transferred up one trophic level of the energy pyramid.
a) 100%
b) 10%
c) 90%
d) 50%
Galapagos island finches and tortoises all developed traits through natural selection. What occurs during the process of natural selection?
a) Organisms choose mates from other species.
b) Breeders cross organisms with desirable traits that human prefer.
c) Only the fittest, best adapted organisms survive long enough to reproduce.
d) Organisms remain exactly the same over many generations, there is no change over time..
Which of the following best describes the role of decomposers in an ecosystem?
a) They produce their own food using sunlight
b) They consume other organisms for energy.
c) They break down dead organisms and waste to return nutrients to soil.
d) They are carnivore and considers apex predators (top of the food chain)
Groundwater is
a) water found along Earth's surface, like lakes, rivers, ocean
b) water found below Earth's surface, like in aquifers
c) the top of the saturated zone of the water table
d) water flowing down a mountain
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