Answer:
B) A school of sunfish.
In biology, a population is a number of all the organisms of the same group or species who live in a particular geographical area and are capable of interbreeding
Answer:
Plant cells need to store water for future use, such as for photosynthesis, so they need a larger vacuole than animal cells.
Explanation:
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The element named after Thor, the Scandinavian god of war?
Thorium
Answer: Layer a is 500 million years old.
Explanation:
Trilobite is a member of the group of extinct arthropods found as fossils and they can be identified by the three-lobed as well as three segmented forms. These were the marine animals. These were appeared initially in the Cambrian Period. They used to live 542 million years ago so the fossils can be estimated to be aged of 500 above years old. These animals used to dominate in the sea area.
1) pathogen
2) viruses
Some bacteria are not harmful to your body hence not all of them are pathogens
