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Motion and Motion Graphs: Mastery Test
Lorr's family is on a road trip. They split their drive into the five legs listed in the table. Find the average velocity for each leg of the trip. Then
arrange the legs of the trip from lowest velocity to highest.
Leg Distance (km) Time (min)
А 15
10
B
20
15
C С
24
12
D
36
9
E
14
14
leg A
leg B
legc
leg D
leg E
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many other transport proteins, often called pumps, move materials against a concentration gradient. active transport drives molecules across a membrane from a region of lower concentration to a region of higher concentration. this process, shown in figure 5.1, uses transport proteins powered by chemi- cal 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.

friedrich meischer discovered it in white blood cell