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poizon [28]
3 years ago
7

Pathogen A has an ID50 of 50 particles, pathogen B has an ID50 of 1,000 particles, and pathogen C has an ID50 of 1 × 106 partic

les. Which pathogen is most virulent?
pathogen A
pathogen B
pathogen C
Biology
1 answer:
klemol [59]3 years ago
6 0

Answer:

Option A, pathogen A

Explanation:

ID50 is a way to measure the virulent efficiency of a pathogen. ID50 for a pathogen depicts the number of pathogens required to infect or cause the associated disease with in 50 percent of any population sample.

This means that 50 pathogens A can infect 50 percent  of any sample population.

While 1000 pathogen B and 1000000 pathogen C are required to infect 50 percent  of any sample population.

hence, Most virulent pathogen is Pathogen A

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Connect the importance between meiosis and the process of sexual reproduction. Is it possible to survive without your reproducti
Aleksandr [31]
It must be known that there is an interdependent relationship between meiosis and sexual reproduction. During sexual reproduction, meiosis generates a genetic variation in the offspring because it randomly shuffles genes across chromosomes and then randomly segregates half of those chromosomes into each gametes. These two gametes or sex cells then fuse randomly to form a new organism. One of the key factors in evolutionary fitness and biological diversity is genetic variation. This can be made possible through reproductive cells undergoing meiosis since such process has specialized sex cells split and multiple after copulation.

To answer the question if is it possible for a human to survive without a reproductive system, the answer is yes.

Reproductive organs of both men and women are vital to create a child. But it must be noted that both can live without them. There are situations that sometimes necessitates the removal of such organs especially if he or she is inflicted with cancer or other diseases.
4 0
3 years ago
According to the phylogeny tree, which two phyla are most closely related? Chordata and Mollusca Cnidaria and Nematoda Annelida
devlian [24]
<h2>Answer:</h2>

Option C is correct.

C. Annelida and Arthropoda

<h2>Explanation:</h2>

Annelida and Arthropoda are the phyla belong to the kingdom Animalia. In these both phylum animals are consist of segmented bodies. But the animals in Annelida consists of a hydrostatic skeleton whereas the animals in Arthropoda consist of exoskeleton made up of chitin.


6 0
3 years ago
Read 2 more answers
I WILL GIVE BRAINLIEST! This is for 9th Grade Honors Biology... You need to place the words from the word bank in the correct or
Lera25 [3.4K]

Traits included physical features such as flower color. Today, these factors are called <u>alleles</u>.  Mendel developed the hypothesis that some factors could be dominant, while others were <u>recessive</u>. According to his theory, a dominant factor is expressed when <u>only one factor is presen</u>t in the offspring. On the other hand, a <u>recessive</u> factor expresses its <u>phenotype</u> when <u>both factors are present</u> in the offspring. Today, the term<u> genotype </u>refers to the combination of factors possessed by an organism.

  1. alleles
  2. recessive
  3. only one factor is present  
  4. recessive
  5. phenotype
  6. both factors are present  
  7. genotype

7 0
3 years ago
Identify the correct sequence of the following events.(a) Myosin generates a power stroke.(b) Ca+ binds to troponin.(c) ATP rech
Brums [2.3K]

Answer:

b, d, f, a, e, c

Explanation:

Ca+ binds to troponin -> Troponin removes tropomyosin from G actin -> Myosin binds to actin -> Myosin generates a power stroke -> the sarcomere shortens -> ATP recharges the myosin head

5 0
3 years ago
What is the function of the structure labeled Y?
Rashid [163]

Hey there!

I'm assuming it's pointing to the wall in between the two sections of the heart.

We can go over the function of the blue section and red section of the heart. Though I must admit I am not well versed with hearts of birds, I will assume this is similar to a human one. The blue section <u>receives blood from the body which doesn't have any oxygen left in it,</u> and the red section <u>receives blood from the lungs, newly oxygenated.</u> This sector in between separates these two sections, and separates oxygen-poor blood and oxygen-rich blood.

Thus, your answer is option D.

Hope this helps, feel free to let me know if you have any additional questions about this specific problem!

3 0
3 years ago
Read 2 more answers
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