| Your Results | Global Average | |
|---|---|---|
| Questions | 5 | 5 |
| Correct | 0 | 3.05 |
| Score | 0% | 61% |
Which of these is not a phase in cell division?
megaphase |
|
cytokinesis |
|
interphase |
|
anaphase |
Cell division is the process by which cells replicate genetic material in the nucleus and consists of several phases, beginning with interphase and ending with cytokinesis.
Which of the following is the smallest component of an element that still retains the properties of the element?
neutron |
|
atom |
|
molecule |
|
element |
An atom is the smallest component of an element that still retains the properties of the element.
During the water cycle, water enters the atmosphere as a gas through which process?
precipitation |
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evaporation |
|
both evaporation and transpiration |
|
transpiration |
The water (hydrologic) cycle describes the movement of water from Earth through the atmosphere and back to Earth. The cycle starts when water evaporates into a gas from bodies of water like rivers, lakes and oceans or transpirates from the leaves of plants.
Small rocks shed by asteroids and comets that reach the earth are called:
shooting stars |
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meteors |
|
meteorites |
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meteoroids |
Smaller rocks shed by asteroids and comets are called meteoroids. When these rocks reach Earth's atmosphere, they burn up in the mesosphere and become meteors. If a meteor manages to reach the Earth, it is called a meteorite.
In the food chain, bacteria and fungi convert the organic matter in the dead bodies of plants and animals into simple nutrients. Bacteria and fungi are:
producers |
|
primary consumers |
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scavengers |
|
decomposers |
Decomposers (saprotrophs) are organisms such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals into simple nutrients.