Question

The pollen grains contain two nuclei, do you think they may have formed if we assume
that pollen grain may have started as a single cell stage?​

Answer 1

Answer:

There are three main types of soil: sand, silt, and clay. The best soil for most plants for optimum growth is a rich, sandy LOAM. Loam is an even mixture of the three main types of soil. In most cases, you will need to amend your soil with compost.