During mammalian fertilization, two haploid gamete cells fuse to generate a diploid cell called a zygote. Each parent donates a set of chromosomes, yielding offspring that carry both a maternal and a paternal set of chromosomes. Each chromosome within the maternal set has a correlative chromosome within the paternal set that encodes for the same hereditary characteristics. These corresponding chromosomes are called homologous pairs. Diploid mammalian cells have

the correct answer to this question is #5

it's c.us forest service

the nitrogen cycle provides nitrogen to the ecosystem from the atmosphere, ground and oceans. nitrogen is an important component of complex molecules such as amino acids and nucleotides, which lead to the creation of proteins and dna, the building blocks of all life. plants absorb nitrogen in the form of ammonium, nitrate ion and, on rare occasions, as amino acids. animals receive nitrogen necessary for biological processes from feeding on living or dead organic matter.

essentially, one bacterial cell splits into two daugurer cells. bacterial offspring don't need or get care from their parents because they are in a sense their own parents. that said, some bacteria can and do depend on other bacteria especially in harsh environments such as bacterial microfilms in hot water tanks.