During periods of intense exercise, cells do not receive enough oxygen to perform the normal process of aerobic cellular respiration. as a result, the cells resort to anaerobic respiration, which produces only 1/20th of the energy produced during the aerobic process. this alternative version of cellular respiration produces lactic acid as waste, which results in muscle soreness. which of the following statements does the above information support?
a
cellular respiration is affected by sugar production.

b.
cellular respiration is affected by cell hydration.

c.
cellular respiration is affected by the availability of reactants.

d.
cellular respiration is affected by temperature.

the answer is C i would know because i just did it.

estuaries are the partially enclosed coastal bodies of brackish water formed at the mouth of sea where river meets an ocean. it is a transition zone between river and sea water so estuaries are influenced to both marine environment such as tides, waves and to riverine such as flow of fresh water and sediments. the mixing of sea and fresh water provide high level of nutrients, making estuaries a high product habitats.

many estuaries suffers degradation from a variety of human activities like erosion from deforestation, overgrazing, overfishing, drainage and eutrophication.

so from the above statement answers will be

1. false as estuaries are formed due to both brackish and freshwater.

2.true, due to high productivity estuaries are breeding ground for many marine species.

3. direct and indirect activities of man that contribute to pollution and deposition of sediments.

the answer is d. embryo