Mendel's Law of Segregation states that: MCQ with Answer and Explanation

Explanation:
Deforestation, the removal of trees and vegetation, exposes the topsoil to wind and water, leading to severe soil erosion and loss of fertility. Afforestation, the planting of trees in barren areas, increases biomass and helps in carbon sequestration, as trees absorb atmospheric CO2 during photosynthesis, mitigating global warming. Most plastics are synthetic polymers that are non-biodegradable, persisting in the environment for hundreds of years and causing pollution. Thus, statements 1 and 2 are correct.

Explanation:
Proximal convoluted tubule reabsorbs glucose, amino acids, and most water. Bowman’s capsule surrounds glomerulus; filtrate lacks proteins and cells; collecting duct concentrates urine.

Explanation:
Essential fatty acids are polyunsaturated fats that the human body lacks the enzymes to synthesize, so they must be consumed in the diet. The two primary essential fatty acids are linoleic acid (an omega-6 fatty acid) and alpha-linolenic acid (an omega-3 fatty acid). They are precursors for other important lipids like arachidonic acid and are crucial for cell membrane structure and eicosanoid synthesis. Palmitic and stearic are saturated fats.