General Science Flashcards
The basic unit of life is
the cell
When a plant undergoes photosynthesis, one of the by products is
oxygen
Why is the nucleus so important to a living cell?
it controls the most of the activities of the cell
Which of the following do not have organelles?
bacteria
Which of the following is not an example of a fruit?
Potato
Which of the following terms can be used to describe a bird?
vertebrate, warm blooded
Why are decomposers important to an ecosystem?
they make nutrients available for plants to use
Which of the following is the part of the skeletal system that protects the spinal cord?
vertebrae
A bruise on your skin is the result of which of the following?
broken capillaries
The function that moves food from one part of the digestive system to another is called
peristalsis
Which of the following words are all associated with the nervous system?
hypothalamus, pons, cortex
Which of the following is the name for the space between two nerve cells where an electric charge transmits information?
synapse
Which of the following states is likely to have the greatest biodiversity?
florida
which of the following represents what happens to ultraviolet radiation from the sun when it reaches the Earth’s atmosphere?
some of it is absorbed by the ozone layer
Which of the following properties of a sound wave affects how loud or soft the sound is?
amplitude
The major force causing sea floor spreading, continental drift, and collision of continental plates is
convection currents in the mantle
When two tectonic plates converge and one rises above the other, which of the following are likely to form?
volcanoes
Breaking waves or breakers that occur near the shoreline are caused by which of the following conditions?
friction between the wave trough and the bottom of the ocean
How long does it take for the Earth to make one revolution around the sun?
1 year
An eclipse of the sun occurs under which of the following conditions?
the moon is between the sun and the Earth
Earth’s greenhouse effect is caused by which of the following conditions?
heat from the sun that is trapped by atmospheric gases
Which of the following can hold the most moisture?
warm air
When a prevailing wind reaches a mountain range, what happens to the air?
it rises and cools, causing condensation
The process of erosion is linked to the formation of which of the following types of rocks?
sedimentary
Scientists believe that the universe is expanding because of which of the following indicators?
the red shift in the spectra of stars
