Bears typically eat a mixture of plants and animal food sources. when a bear is unable to find meat, it will have a much lower fat intake, which will limit its supply of ( this would directly affect the ( and normal body functions. 1. amino acids, essential fatty acids, or glucose. 2. cell membrane, muscles, or bones.

Ans.

Fats are complex biomolecules, made up of long hydrocarbon chains. For bears, meat and fishes are main source of fats. Fats provide essential fatty acids to the body that play various biological roles, such as in energy storage functioning of bones, and insulating vital organs.

When a bear cannot find meat, it will show a much lower intake of fats. Lower fat intake would lead to limit the supply of essential fatty acids as these molecules are produced by the digestion of fats.

Essential fatty acids molecules help in proper growth and functioning of bones, as they are necessary for proper calcium metabolism. So, limited supply of essential fatty acids will directly affect the bones and normal body functions.

Thus, the correct options are 1). essential fatty acids and 2). bones.

the missing space is phylum

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.