In sexual reproduction, the genetic material of two individuals is combined to produce genetically diverse offspring that differ from their parents. Fertilization and meiosis alternate in sexual life cycles. What happens between these two events depends upon the organism. The process of meiosis, the division of the contents of the nucleus that divides the chromosomes among gametes, reduces the chromosome number by half, while fertilization, the joining of two haploid gametes, restores the diploid condition. There are three main categories of life cycles in eukaryotic organisms: diploid-dominant, haploid-dominant, and alternation of generations
<span>The onset should be at 2:30pm and peak and 4pm given that monitoring is performed every four hours. There is sometime for the body to process, and the peak lining up with the midpoint if the monitoring cycle makes the most sense.</span>
Answer:
the 1rst and 2nd
Explanation:
all fertile individuals can breed with one another and individuals vary genetically
Answer:
The binding of chemical messengers to receptors often results in a shape change, which affects receptor function.
Explanation:
Binding of specific chemical messengers to the corresponding receptors of target cells brings about change in the shape of the receptors. This structural change in the receptor results in the generation of the desired response. It reflects how the form and specific configuration of substances or biomolecules affect their functions.
For example, binding of neurotransmitters to the receptors present on neurons opens the associated ligand-gated ion channels to allow the movement of specific ions through it. In the absence of bound ligand, these channels are present in a closed conformation.
Scavengers help break down or reduce organic material into smaller pieces. These smaller pieces are then eaten by decomposers. Decomposers eat dead materials and break them down into chemical parts. ... They break down the organic material and recycle it into the ecosystem as nutrients.
