<u>B. Secondary xylem</u> tissue makes up most of the wood of a tree.
<h3><u>What exactly is secondary xylem?</u></h3>
Secondary xylem is a sort of xylem produced by secondary growth. During initial growth, in contrast, the primary xylem develops. As a result, the secondary xylem is linked to the primary xylem by lateral growth as opposed to the vertical extension.
The kind of cambium that gives rise to each difference is another point of differentiation. The vascular cambium produces the secondary xylem, while the procambium produces the primary xylem.
Unlike trees and shrubs, non-woody plants lack secondary xylem. It gives such plants mechanical support by depositing lignin into their cell walls, thickening them. Compared to the major xylem, the secondary xylem is made up of tracheids and veins that are shorter and wider. In comparison to the primary xylem, it is also richer in xylem fibers.
Possible growth rings in the secondary xylem (or annual rings). Sapwood and heartwood are two differentiators of the secondary xylem in big woody plants.
Learn more about secondary xylem with the help of the given link:
brainly.com/question/703995
#SPJ4
The recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.
<h3>What is a recessive phenotype?</h3>
A recessive phenotype is a phenotype which expresses the recessive trait of a gene.
The recessive phenotype is always h0m0zygous for that triat to be expressed.
In the Hardy-Weinberg equilibrium equation, the allele and phenotype frequencies are given as follows:
where;
- p^2 is the h0m0zygous dominant phenotype frequency
- 2pq is the heterozygous phenotype frequency
- q^2 is the h0m0zygous recessive phenotype frequency
Therefore, the recessive phenotype is used first to determine the q squared value because it is only expressed when h0m0zygous.
Learn more about recessive phenotype at: brainly.com/question/22117
Hello there!
38. A) Wavelength
39. True
40. B) Alfred Wegener
41. False
42. False
43. ?
44. B) Conduction
45. C) Convection
Hope this helps!
Answer:
Dry heat will always be a lower temperature than moist hea
Advantages of Dry Heat sterilization
Reliable, nontoxic.
Low cost and is easy to install.
As the instrument remains dry after sterilization, there are no chances of corrosion.
Not harmful to the environment.
Disadvantages of the Dry Heat Sterilization
It requires more time for sterilization.
Exposure to the higher temperature may be harmful to the instrument.
Explanation:
