The answer is both minerals are dull non metallic minerals do not shine on their own
The structure of the plasma membrane;
The plasma membrane is composed of a bilayer of phospholipids. A molecule of phospholipid consists of two fatty acids and a phosphate group attached to a glycerol component. The fatty acid tails represent a hydrophobic region of the molecule, while the glycerol-phosphate head is hydrophilic. The phospholipids are arranged into a bilayer formation with the hydrophilic heads pointing to the outside and the hydrophobic tails pointing toward the inside. The plasma membrane is a barrier to most molecules. In plants, fungi, and bacteria, the membrane deposits cellulose or other polysaccharides on the outside of the membrane to create a cell wall, which it provides support to the cell.
Embedded in the phospholipid bilayer are various proteins and, in animals cells, cholesterol molecules. This mixture of molecules accounts for the fluid mosaic model of the plasma membrane, that is, a highly flexible lipid boundary impregnated with various other molecules.
The interactions of plasma membrane with the outside environment;
The plasma membrane is a selectively permeable membrane. Small molecules, like O2 and CO2, readily diffuse through the membrane. The movement of larger molecules is regulated by proteins in the plasma membrane. There are several kinds of these proteins. Channel proteins provide passage for certain dissolved substances. Transport proteins actively transport substances against a concentration gradient. The glycocalyx, consisting of the oligosaccharides from glycolipids, recognition proteins, and other glycoproteins, provides adhesion or
participates in cell-to-cell interactions. Receptor proteins recognize hormones and transmit their signals to the interior of the cell.
Various substances can be exported into the external environment by exocytosis. In exocytosis, substances are packaged in vesicles that merge with the plasma membrane. Once they merge with the membrane, their contents are released to the outside. In an opposite kind of procedure, food and other substances can be imported by
endocytosis. In endocytosis, the plasma membrane encircles the substance and encloses it in a vesicle.
Answer:
a) 
b)
c)
d) 
Explanation:
The correct question is
Organisms with the genotypes AABbCcDd and AaBbCcDd are crossed. What are the expected proportions of the following progeny?
a. A_B_C_D_
b. AabbCcDd
c. a phenotype identical to either parent
d. A_B_ccdd
Solution
In such question the probability for each allele pair is to be determines separately
For instance,
AA * Aa will produce AA, Aa, AA, Aa this means that all the the probability of getting both AA and Aa is 
Like wise when Bb and Bb are crossed, BB, Bb, Bb, and bb are produced. So the probability of getting dominant trait i.e BB or Bb is 
and recessive trait i.e bb is 
Chance to get homozygous bb only or BB only is
and chance of getting Bb is
Like Bb and Bb cross, the same will be the probabilities for Cc and Cc cross and Dd and Dd cross
Part A)
Part B)
Part C)
Part D)
Answer:
Hypothesis
Explanation:
In the scientific method used by scientist, The Hypothesis has a tentative or proposed explanation that gives report of an observed or measured phenomena. The hypothesis is usually based on previous observations which fails to be explained by available scientific theories. It is the starting point for further investigation that can be tested through experimentation.
Answer:
Answer is option (3).
"Blowing your nose may cause bruising and edema."
Explanation:
Nasal surgeries like septoplasty, rhinoplasty, sinus surgery, etc are usually performed to improve breathing, repair nasal injuries, correct deformities
, change the size or shape of the nose, correct sinus problems, etc.
After the surgery, the patient must follow certain instructions for at least 10 days. The instructions are;
- Avoid strenuous activity for at least two weeks as it may cause bleeding or increase swelling in the operated area.
- Avoid nose blowing after surgery as it may cause bleeding and spreading of infection into the eye. When the patient blows the nose after nasal surgery, the sinus pressure increases and results in increased pressure on the operative site which may cause bruising and edema. But it does not increase intracranial pressure or cause a fracture or decrease oxygen availability.
- Apply nasal saline sprays on each nostril frequently as it keeps the nose clean and clears all debris (dried blood) and maintains moisture in the nose. Also, the clearing of nasal passage results in increased oxygenation.
- Use nasal decongestants to reduce the swelling in the nose.
