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Charra [1.4K]
3 years ago
6

Please help............................

Biology
2 answers:
Dominik [7]3 years ago
8 0
D- both involve moving substances across a membrane
Reasoning:
-Active transport moves against the concentration gradient ( low to high)
-Passive transport moves higher to lower concentration
Anvisha [2.4K]3 years ago
7 0

Answer:

D

Explanation:

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If the father is allergenic and the mother
Jobisdone [24]

Answer:

I think the correct qnswer for this question is 50% but it is not given in the option so the correct answer is 30 %

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5 0
2 years ago
Paneth cells ________. A. are absorptive cells in the small intestine B. secrete enzymes that kill bacteria C. are located next
dedylja [7]

Answer:  B. secrete enzymes that kill bacteria

Explanation:

Paneth cells, so-called because they were first described by Dr. Josef Paneth in 1888, are pyramidal cells, with the nucleus in the basal position, and with large granules in the apical position. Its first isolated specific product was the lysozyme, a bactericidal substance, by Alexander Flemming. These cells play an important role in innate immunity in the small intestine, producing a wide diversity of antimicrobial peptides and enzymes such as lysozyme itself, cryptidines, defensins and a lectin with bactericidal properties.

8 0
3 years ago
In guinea pigs, the color of the fur is determined by a single gene with two alleles control. The brown allele (B) is dominant o
Kipish [7]

Answer:

See

Explanation:

Given:

Brown allele (B) is dominant over the white allele (b).

It will be assumed that the alleles are not related to the X and Y chromosomes.

See attached diagram for details of the general case (for both homo-zygous and hetero-zygous parents)

For both parents hetero-zygous,

P1:

Genotype: Bb (100%)

Phenotype: brown (100%)

F1:

Genotypes : BB, Bb, bB and bb in equal proportions, i.e.

BB (25%), Bb (50%), bb (25%)

Phenotypes: 75% brown (from BB and Bb), 25% white (from bb)

8 0
3 years ago
How is erythrocytes an advantage in exchanging and carrying ​
elena-s [515]

Answer:

Shape of Red Blood Cells Erythrocytes are biconcave discs with very shallow centers. This shape optimizes the ratio of surface area to volume, facilitating gas exchange. It also enables them to fold up as they move through narrow blood vessels.

6 0
3 years ago
What kinds of environmental factors might cause the Marfan syndrome gene to affect two siblings very differently?
Nataliya [291]
Heart,eyes,blood vessels and skeleton people.
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2 years ago
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