To avoid nutrient deficiency one must have a balanced diet. A balanced diet would be the one which includes all the nutrients. It includes
Macronutrients: carbohydrates (the source of energy), proteins and fats.
Micronutrients: vitamins and minerals.
One should include in their diet the following things: Cereals, pulses, fruits vegetables, milk, meat, oil and fats. The amount of nutrient intake varies with age and amount of physical activity done.
The twisty columns of the double helix are phosphate and sugar(deoxyribose), which are bonded by a covalent bond. Each nucleotide consists of one of each, and also a nitrogen base. The rungs are nitrogen bases, each nucleotide has one base, and one side of the ladder bonds to the other side of the ladder through hydrogen bonding of complementary base pairs. The base pairs of DNA are A-T and C-G
B. No is correct.
Only the plant cell has A cytoskeleton.
Answer:
(c) directional selection
Explanation:
Directional selection is a type of natural selection that occurs when members of a population of a species with a particular extreme phenotype is selected or favored against the other phenotypes when natural forces act on the population of a species. Individuals having the particular traits that are favored survive and become more common that others with traits that are less favored.
Directional selection may likely result in the species of butterflies in which darkly collared butterflies are not preyed upon, ensuring their survival, while the other butterflies with other colors will be phased out with time. Darkly colored butterfly will be selected for while the others will be selected against.
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