Answer:
Whales = lungs
Clams = gills
Spiders = tracheal system
Answer:
when the salt outside of the paramecium is higher that the amount of salt inside a paramecium ,then they need all of the water they can get as a result they do not need contractile vacuole to contract.
ribosomes make protein which is found in cytosol.
lipids are present in the outer layer of the cell.
2. Nucleus
9. Cell Membrane
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Angiosperms<span> contain both seeds and flowers, while </span>gymnosperms<span> only contain seeds. </span>
Explanation:
Biodiversity means the diversity in different species which are dependent for nutrient involved in nutrient chain.by introducing many more cattle is not a diversity it will be a same species and it will only increase Biomass