The main reason that most farmers use stem cuttings rather than just planting a seed is that a tree's genetic variation will occur. The seeds of many fruit trees tend to vary differently from the parent, because seeds themselves are produced by sexual reproduction (i.e they receive genes from a male and female to form). As they are a cross from two sets of genes, many fruit trees are not “true to seed”. Their seeds will produce a generally different variety of tree from the parent. When using stem cuttings, it's almost like a cloning process.
Answer:
species richness,
Explanation:
species richness_______ is the number of different species represented in an ecological community, landscape or region. _species richness, ______ is simply a count of species, and it does not take into account the abundances of the species or their relative abundance distributions.
The pericardial cavity separates the parietal and visceral pericardium
I wish I could help but I can I’m sorry so good night
Answer:
C. A concentration gradient must exist.
