I think that the correct answer is reactants of photosynthesis.
Answer:
d. this is one part of the cell cycle.
Explanation:
D. Muscus and cilia trap pathogens
have a good day!
Answer:
Means to increase drag and prevent sinking is the correct answer.
Explanation:
Plankton avoid sinking by increasing their surface area and decreasing their density. Spines slow down sinking by adding surface area without increasing density. Defense against predation would be to sing below. Not the opposite.
Renewable energy refers to the provision of energy via renewable resources which are naturally replenished fast enough as being used. it includes e.g. sunlight, wind, biomass, rain, tides, waves and geothermal heat.