Polyploidy (more than two complete sets of chromosomes) is not rare among plants. For example, pollen grains may reach female flowers via animals or wind. In some cases, pollen grains from species with 4 complete sets of chromosomes will have 2 sets of chromosomes. Pollen grains may fuse with a female reproductive organ with 1 set of chromosome (so, female plant must have 2 sets of chromosomes). The resulting zygote will have 2 + 1 sets of chromosomes, so the plant will have 3 complete sets of chromosomes.
The greatest current threat to the loss of the Earth's biodiversity is global warming. This is because when the ice melts, the cold comes down to us and makes us have rainy summers and very early snow and cold springs and cold autumns. And when the ice melts enough, water will start to come down and flood countries and cities, such as Manhattan. Scientists are predicting that California will break away from America.
Answer:
There are lots of transitional organisms in the fossil record though it does take very specific and precise conditions for a fossil to be preserved, a deer that dies in a field will not end up in the fossil record so we are looking at a small sampling of the evidence (and a good thing too or there wouldn't be anywhere to walk with all the bones laying around)
Explanation:
Answer:
1. During the__ Attachment ____stage, enzymes digest cell wall and membrane material so that the viral nucleic acids can enter into the host cell.
2. During the ___ Penetration __ stage, the capsid of virus combines with receptors on the host cell's plasma membrane.
3. During the__ Biosynthesis ____stage, viral nucleic acids and capsid components are produced.
4. During the ___ Release __ stage, lysozyme enzyme is produced, is rupturing the cell membrane and releasing viral particles.
5. During the___ Maturation ___stage, viral nucleic acids and capsid components are assembled to produce viral particles.
Explanation:
I have attached picture explanation whole lytic cycle.
