The instrument of choice would be the the clam shell sampler, which is also know as a grab sampler. Another instrument they use is the piston corer which is an open tube on a cable that gets dropped from a ship.
The genes that survive and flourish in a species are the strong ones. Strong genes evolve into the next generation, while weaker ones die.
B. It has a whip, like a tail
Explanation - Protists are unicellular organisms. Some multi-cellular organism might exist. Some protists have silica plated scales on their body surface like diatomaceous earth. They exhibit both type of respiration - aerobic and anaerobic. They mainly have parasitic mode of nutrition.
Protists also have flagella which they whip that in turn helps in their movement and this feature have made them to enter into the water body, example - euglena. Paramoecium have cilia on their entire surface that helps in their locomotion in water.
Producers make up more biomass than primary consumers because both primary and secondary consumers eat grass
