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Hunter-Best [27]
3 years ago
15

Paneth cells ________. A. are absorptive cells in the small intestine B. secrete enzymes that kill bacteria C. are located next

to the lacteal in a villus D. are more common in the ileum than in the jejunum
Biology
1 answer:
dedylja [7]3 years ago
8 0

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.

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Answer:

carry information from one generation to another

5 0
3 years ago
Primate evolution and behavior, such as hunting skills, have been directed in part by the development of depth perception. What
Morgarella [4.7K]

Answer:

The answer is the placement of the eyes.

Explanation:

Developing depth perception through evolution for reasons such as hunting and movement was crucial in the survival of the species and it was made possible by the change in the location of the eyes to the front of the head. Because of the location of the human eyes and the distance of approximately 6 centimeters between them, they perceive slightly different images of the world and this also helps with the depth perception.

I hope this answer helps.

4 0
4 years ago
In a population with two alleles, B and b, the allele frequency of B=0.59. What would be the frequency of the heterozygotes if t
Levart [38]

Answer:

0.483

Explanation:

The given population is in Hardy-Weinberg equilibrium. If the gene has two alleles, the sum total of the frequencies of these two alleles will be one.  

Therefore, the total of the frequency of allele B and frequency of allele b will be 1. f(B) + f(b)=1

If the frequency of allele "B" is 0.59, then the frequency of allele "b" will be=1-0.59= 0.41

The frequency of heterozygous genotype in the population= 2pq

p= frequency of the dominant allele

q= frequency of the recessive allele

So, 2pq= 2 x 0.59 x 0.41 = 0.483

6 0
3 years ago
A tube worm is a creature that lives within the dark, hot, and mineral-rich conditions of a hydrothermal vent. Deep-sea bacteria
7nadin3 [17]

Answer:

How Giant Tube Worms Survive at Hydro thermal Vents. In a process called chemo-synthesis, symbiotic bacteria inside the tube worm use hydrogen sulfide spewed from the vents as an energy source for themselves and for the worms.

Explanation:

3 0
4 years ago
Example #2: Oil is poured into a glass water. The oil and water are mixed.
Over [174]

Answer:

C

Explanation:

im a mechanic i know this stuff

5 0
3 years ago
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