B) wavelength
Notice how Z goes from one wave's crest (top) to another's crest. Wavelength can also be measured from a wave's trough (bottom) to the next one's trough.
If the father had the gene BB (purebred & not carrying colourblind allele), then the answer will be a). All of their children will have normal vision with half of them carrying the colourblind allele.
If the father had the gene Bb (hydrid & carrying colourblind allele), then the answer will be d). 3/4 of their children would have normal vision whilst the last quarter would have colourblind males. This is due to them having to receive one colourblind allele from their mother on the X chromosome & one colourblind allele from their father on the Y chromosome.
Answer:
Watery clear spots that feel itchy are part of a condition called dishidrotic dermatitis
Explanation:
allergic reactions due to contact materials that have been attached, due to long-standing and repeated friction
Answer:
The abiotic factors are the non-living parts of an ecosystem.
This includes rocks, water, metal etc.
