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Korolek [52]
3 years ago
7

You step on something in the yard resulting in a puncture wound that does not bleed freely. antigens from any microbes that ente

red the wound will most likely end up in the
Biology
1 answer:
Oduvanchick [21]3 years ago
6 0
Blood stream.

Once they enter that wound, it can be infected because germs ended up in the blood stream.
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Which of the following elements is likely to form a ionic bond with potassium
Igoryamba

 The element  that  is  likely  to form a ionic  bond  with potassium is  Cl  (answer A)


<em><u>Explanation</u></em>

Ionic   bond  -  is a  bond formed  when  a  metal  and  a  non metal react.

Metal loses  electron ( donate  electrons)  while  non metal   gains  electrons  ( accept  electrons)  to form  ionic  bond.

potassium  is a metal  while Chlorine(Cl)  is a non  metal.  They  react  to form an ionic  bond   by potassium  donating  1 electron  while  chlorine accept 1 electron.


8 0
3 years ago
This polysaccharide is the most abundant organic compound on
Mkey [24]

Answer:b. cellulose; cell walls of plants

Explanation: polysaccharides are polymers of monossacharides.they are the most abundant organic substance.it is found in the cell walls of plants . cellulose is a linear polymer of glucose residues.cellulose is an important component in the diet of herbivores and omnivores.they do not produce the cellulase enzyme for digesting cellulose.as a result,they depend on symbiotic relationship with bacteria and protozoa found in their stomach to produce cellulase.

3 0
3 years ago
Populations evolve for many reasons. Suppose there is a population of plants that have either purple flowers or white flowers, a
sattari [20]

Answer: natural selection

Explanation:Natural selection, gene flow, gene drift and mutation are the mechanisms for EVOLUTION.

The dominant purple allele must have been acquired from previous parent gene, by natural selection

Definitely the available   alleles from previous flower population were white and purple flowers. But, because the parents of purple flowers exhibit VARIATION, in their gene pool,  they showed dominance over  the recessive white colour flowers in the same population.  

◼ from Darwin’s observation and deduction, Organisms who acquired certain characteristics from variation  tend to survive than others, and therefore pass these inheritable characteristics to their offspring.

◼Thus the purple flowers dominated the population for the available resources, among the other flowers colours, (competitions) therefore it leads to a stable population in size after a period of time., while the white colour flowers are recessive

◼Darwin concluded that, variants of best adaptation will be selected for by natural conditions operating in the environment of the population at that particular period (natural selection).

Based on this, natural selection takes place, and the purple flowers with best variation will have selective advantage (dominance)above white colour flowers(recessive).

Consequently, they have higher survival rates compare to white flowers in the population this is   survival of the fittest by natural selection of purple flowers

The frequency of the white colour flower will reduced because of less manifestation of traits from generation to generation from reduced gene pool due to recessive trait, however the frequency of Purple flower will increase because the number of copies of allele of purple flowers is greater than the total number of all the flowers population( white flowers+purple)

5 0
3 years ago
What is the optimum pH for each enzyme
uysha [10]
It’s not the most visible by your picture. The correct answers are where the highest point of each line is because that is where the enzyme is working most efficiently.

Here are my answers but because of the unclear image , please check them with my explanation above:

Pepsin. = pH2
Salivary Enzyme = pH7
Trypsin = pH9
4 0
3 years ago
Which of the following describes the structure and function of the cell membrane?
mamaluj [8]

Answer:

A. The hydrophilic head groups of the lipid molecules are exposed to the outside of the cell and the cytoplasm, which is a water-like environment. The hydrophobic tails form an oily layer inside the membrane that keeps water out of the cell

7 0
3 years ago
Read 2 more answers
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