Now it is your turn. be sure to design an experiment that you can conduct with materials you have on hand or that you can acquire easily. you will need to complete the experiment, recording observations and data. you will submit your assignment in a lab report.
sample topics to experiment with include:
what effect will adding sugar have on the viscosity of water and how do different materials affect capillary action also how does adding salt affect the freezing point of water how does temperature change affect water's cohesion?
how does temperature change affect surface tension?
i'm sorry it's so long but me will give 30 points.

eukarya because is is like alche and b is bacteria and d is animals

explanation:

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

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.