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adoni [48]
3 years ago
6

8. How is penicillin used?

Biology
1 answer:
Tom [10]3 years ago
5 0

Answer:

O to kill bacteria that cause disease

Explanation:

penicillins are a group of antibiotics used to treat a number of bacterial infections.

hope this helps!

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In a species of birds, having wide wings (W) is dominant to having thin wings (w). Which of the following genotypes is INCORRECT
Nadusha1986 [10]

Answer:

The options including the genotypes are not included. On a general note, three genotypes that are possible for this trait including their phenotype is:

WW- Wide wings

Ww- Wide wings

ww- thin wings

Explanation:

This question involves a single gene coding for wings width in a certain bird. The allele for wide wings (W) is dominant over the allele for thin wings (w). This means that allele 'W' will always mask the expression of allele 'w' in a heterozygous state.

There are three possible genotypes considering this trait.

WW- homozygous dominant genotype which wings will be phenotypically wide because it contains a combination of same dominant alleles.

Ww- heterozygous dominant genotype which wings will be phenotypically wide because I this combination of alleles, the W allele will always express itself phenotypically over allele 'w' considering the dominance of W.

ww- homozygous recessive genotype which wings will be phenotype thin because it contains a combination of same recessive alleles.

N.B: a recessive trait will only be expressed in a homozygous condition.

4 0
4 years ago
What type of molecules are shown moving across the membrane?
jeka94
I believe that would be small polar and nonpolar molecules.
Hope it helps!
8 0
3 years ago
Looking at the graph (photo attached), what is the independent and dependent variable?
Paha777 [63]

Answer:

independent: food

dependent: mass grain

Explanation:

8 0
2 years ago
Which of the following statement(s) is/are TRUE about Red Blood Cells (RBCs)? a) A normal RBC has a nucleus RBCs' production is
olga_2 [115]

Answer:

RBCs' production is controlled by erythropoietin.

Mature RBCs are released into the bloodstream after approximately seven days RBCs are produced in the bone marrow

Explanation:

The hormone erythropoietin is produced and released in the bloodstream by peritubular interstitial cells of kidneys. The function of erythropoietin is to increase the number of the precursors of red blood cells and thereby to stimulate the production of red blood cells in the bone marrow. When the oxygen supply to body cells is reduced, the hormone erythropoietin stimulates the development of proerythroblasts into reticulocytes and thereby increases the RBC production.

RBCs are produced by the process of erythropoiesis and take about seven days to become mature and to be released in circulation to serve the function of oxygen delivery. The maturation of RBCs also includes the loss of most of the organelles such as the nucleus and mitochondria to accommodate hemoglobin protein. The life span of circulating RBCs is about 100-120 days.

4 0
3 years ago
When telephoning patients who have not returned to the office for normal maintenance and recall appointments, several of the pat
Fittoniya [83]

The aspect and areas of the dental office that should be assessed is the customer service units. The patient- dental assistant relationship should be enhanced.

<h3>Who is a dentist?</h3>

A dentist is an individual that specialises in diagnosis, treatment and prevention of diseases that is associated with the gum, teeth and mouth.

When creating a list of improvement that would enhance the dental office setting, the customer service unit should be assessed. This is because it is the point where the patient and the dental assistant has first point of contact.

The manner of approach of the dental assistance to these patients needs to be improved as patients who are not well received can stop coming to the clinic.

Learn more about dental care here:

brainly.com/question/15384481

#SPJ1

5 0
2 years ago
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