Which polymers code for an organism’s traits? a)lipids, b)proteins, c)nucleic acids, d)carbohydrate?

C, Nucleic acids

Explanation:

The Deoxy ribosenucleic acid (DNA) is a molecule that contains in it, instructions required for an organism to function. A segment of this DNA ( a sequence of nitrogenous bases), which is the basic hereditary material, that codes for a specific protein is called a GENE. The genes are transcripted into messenger RNA (mRNA) which are later translated into a sequence of three nucleotides that codes for an amino acid, called CODONS. These codons forms an amino acid sequence (proteins) which are responsible for the phenotypic characteristics of an individual, called traits.

This process of gene expression commenced with DNA, which is a Nucleic acid, it can therefore be said that the Nucleic acid codes for the traits of an organism.

the bedroo..

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.