1.if you look in your mouth which system can you see?

a.digestive b. muscular c. respiratory d. none of the above

2.which scientist is not associated with the study of cells
a.anton van leeuwenhoek b.robert hooke c.albert einstein d.robert brown

3.the system in an organism works independently.
a.true b.falls

4.which of these is not caused by microorganisms.
a.sprained ankle b.measles c.tooth decay

5.which of these terms does not belong.
a.poisons b.cells c.organs d.tissue

6.which of these is not true about microorganism.
a.they are harmful b.they reproduce c.they feed & grow

7.which of the following will result from a drastic change in the biotic and abiotic factors of a habitat
a.new habit will exist
b.source of food will increase
c.weather will be affected d.size of population of living things will increase or decrease

8.which of these object is not found in the biosphere of earth
a.bald eagle b.great white shark c. core of the earth d.amazon rainforest

9.competition,predation, and symbiosis are all types of ___.
a.biotic relationship
b.commensalism c.mutualism
d.parasitism ​