To make amino acids, proteins, and DNA. When organisms die, their bodies decompose bringing nitrogen into the soil on land or into ocean water.
Answer:
Prophase I of meiosis
Explanation:
A tetrad is the group of two homologous chromosomes that have each already replicated into a pair of sister chromatids, forming a foursome. This replication happens during interphase.
During prophase I of meiosis, homologous chromosomes pair up and form tetrads. This is prior to crossing over, which is the exchange of genetic material that happens between homologous chromosomes prior to the formation of gametes.
Answer:
The correct answer will be- seminiferous tubules of scrotum.
Explanation:
Spermatogenesis is the process of formation of male gametes or sperms. The process begins when spermatogonia in seminiferous tubules divide by mitosis and meiosis I and becomes primary spermatocytes and meiosis II and form secondary spermatocyte.
The secondary spermatocyte differentiates into sperms where the large Sertoli cells nourish the immature sperm. The sperms get stored in the epididymis where also they get nourished.
Thus, seminiferous tubules of the scrotum are the correct answer.
Answer:
Plants gain food from the sun by Photosynthesis,
Explanation:
The process by which green plants and some other organisms use sunlight to synthesize foods from carbon dioxide and water. Photosynthesis in plants generally involves the green pigment chlorophyll and generates oxygen as a byproduct
