10 mL of nutrient solution plus 1 mL of
bacteia suspension
10 mL of lysine de
nutrient solution p
of bacteia

What hypothesis is most likely being tested using the samples in the figure?
O The amino acid composition of the bacteria
O The ability of bacteria to survive in a lysine free environment
O The ability of bacteria to perform photosynthesis
O The ability of bacteria to survive in a test tube

as resources become scarce because of population growth, the growth decreases after few years due to lack of resources and food.

a physical change is being made.

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.