In 1-6 below, a directional term (e. g., distal in 1) is followed by terms indicating different body structures or locations (e. g., the elbow/the shoulder). In each case, choose the structure or
location that best matches the directional term given.
1. Distal—the elbow/the shoulder
4. Superficial—the skeleton/the muscles
2. Lateral—the shoulder/the breastbone
5. Proximal—the knee/the foot
3. Superior—the forehead/the chin
6. Inferior—the liver/the small intestine

i have to report this, it doesn't relate to biology

the answer is d. chordata

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.