Answer: Hi.... I hope it helps!!
Skin Pigmentation in humans
Explanation: Polygenic inheritance- It is simply a single characteristic which is controlled by more than two genes. Human skin's color is determined by the amount of dark pigment it has which is melanin
. Minimum four genes are involved in the melanin production.
It is a case of continuous variation as the combination of melanin producing allele are responsible for degree of pigmentation
Answer:
Plant cells are enclosed by a rigid cell wall. When the plant cell is placed in a hypotonic solution, it takes up water by osmosis and starts to swell, but the cell wall prevents it from bursting.
Explanation:
Answer:
There are over 30 phyla dedicated to invertebrates. Major invertebrate phyla that you should know include porifera, cnidaria, platyhelminthes, nematoda, mollusca, annelida, arthropoda, and echinodermata
Explanation:
Explanation:
The Earth's magnetic field protects us by deflecting much of the incoming solar radiation. Without it, our atmosphere would be stripped by solar winds.
Satellites can and do suffer damage from solar storms, and without Earth's magnetic field, every electronic device could be exposed to high-energy particles from cosmic rays and the solar wind. If Earth lost its magnetic field, there would be no magnetosphere and no line of defense, even from weaker solar storms
Answer:
Essential bonding's are developed in the amino acids leading to formation of DNA. During cellular interaction they also provide pathways for active transportation.
Explanation:
Hydrogen bonding causes the folding of protein thereby stabilizing their structure and formation of DNA and essential bio products. These H+ bonds holds the double helix DNA molecule which zips and unzips during the cell division leading to the formation of cells with new genetic material. Also during cellular interaction and transfer of material through a permeable membrane, there is a proton oriented gated channel that causes active transport.
Hence, hydrogen bonds and van der Waals interactions are necessary for cells
