Haploid is the term used when a cell has half the usual number of chromosomes. A normal eukaryote organism<span> is composed of </span>diploid cells<span>, one set of chromosomes from each parent. However, after meiosis, the number of chromosomes in </span>gametes<span>is halved.</span>
The factor that poses the greatest threat is loss of habitat. Have a nice day!
<span>The somatic nervous system is known as the voluntary nervous system, is a part of the peripheral nervous system. It consists of neurons that are associated with skeletal or striated muscle fibers. It affects voluntary signaling for many resion. A large part of the PNS is composed of 12 pairs of cranial nerves and 31 pairs of spinal nerves.</span>
Some cells have to give up reproduction
Answer:
Early cyanobacteria in stromatolites are thought to be responsible for increasing the amount of oxygen in the primeval Earth's atmosphere through their continuing photosynthesis. They were the first known organisms to photosynthesize and produce free oxygen.
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