Answer:
Explanation:
In a cross-section of an adult tree trunk, the outer layer that interacts with the environment is called periderm (Layer D). The second layer that follows the periderm is the phloem (Layer C). The next layer is the cambium, which produces phloem cells and xylem cells (Layer B). The secondary xylem follows the vascular cambium (Layer A) and finally, the medulla is located in the middle of the trunk.
The secondary xylem proceeds from the vascular cambium activity. Its cells are orientated in different ways composing the vertical/axial system and the horizontal/transversal system. The secondary xylem is essential to the tree growth in high because of its resistance and the capacity to transport water long distances. Secondary xylem functions are to transport water and minerals through its vessels and tracheids, to provide support and resistance to the plant, and to store reserve substances.
not sure what you mean, but I think you're talking about the bonds i suppose. Anti-parallel strands are connected by H-bonds, whereas the sugar and phosphorus are bonded by covalent phosphodiester bonds.
By performing this dance, successful foragers can share, with other members of the colony<span>, information about the direction and distance to patches of flowers yielding nectar and pollen, to water sources, or to new nest-site locations.</span>
Answer:
List of options to choose from to complete the question:
A. Aneuploidy
B. Polyploidy
C. Translocation
D. Monosomy
E. Duplication
The CORRECT ANSWER IS A.
A. Aneuploidy.
Explanation:
Aneuploidy results from unusual number of chromosomes in a cell, e.g a human cell with 45 or 47 chromosomes other than 46.
It's mostly seen in Trisomy e.g. trisomy 21 (Down syndrome), trisomy 13 (Patau syndrome) and trisomy 18 (Edwards syndrome).
