Answer:
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
Answer:
nitrogen is an important element of amino acids that make up proteins. Proteins provide structure and function to living organisms. my
Answer:option B
Adolescence is beginini as well as it ends.
Explanation:
Adolescence is a period in life that marks the beginning of puberty and end or termination of physical growth and development.
It is a stage of maturity in life, where physical growth occurs and change in cognitive thinking .
Adolescence is a period of transition between childhood and adulthood.
Adolescence had beginning and it has end.
Answer:
Plants absorb water in a large amount because water is the only medium which is present in a plant for the transportation of minerals. So, the plant absorbs a lot of water even if it is lose by transpiration.
Explanation:
Answer: The process of respiration produces energy for organisms by combining glucose with oxygen from the air. During cellular respiration, glucose and oxygen are changed into energy and carbon dioxide. Therefore, carbon dioxide is released into the atmosphere during the process of cellular respiration.
Explanation: