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Deffense [45]
2 years ago
7

Question 1(Multiple Choice Worth 2 points)(05.05 MC)How does the human immune system initially respond to a pathogen?

Biology
1 answer:
Rufina [12.5K]2 years ago
4 0

Immediately, the pathogen has been recognized:

Macrophages acts as the first line of defence by engulfing pathogens identified by antigens which will now present the antibody shape to a helper T cell.

The Helper T cells produce a signal to plasma and Memory B cells to yield antibodies that attach to the antigens. The cytotoxic cells that leads to cell death are activated by the helper T cells.

Antibodies helps to immobilize pathogen for macrophage to feed on.

if the pathogen comes back a 2nd time the memory cells helps in quick and efficient recovery by producing the specific B and T cells for the antigen.

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A "Cuckold bee" is a common term to describe several different kleptoparasitic lineages in Apoidea.
damaskus [11]

Answer:

True

Explanation:

In biology or animal behavior, the term cuckold refers to the act of invading a strange net. The term might be applied to different species that parasite other species. A very well known example is the cuckoos bird.

The Cuckold bees or cuckoo bees are many parasitic species belonging to the Apoidea taxon that characterize for invading nests of other bees.

Females lay their eggs in the cells of the host nest. Depending on the species, the intruding female might kill the owner larvae of the cell, or the emerging parasitic larvae is the one that can destroy the host using their highly developed mandibles as weapons.

As they develope, foreign larvae feed on the foodstuffs that the female owners of the nests bring for their own offspring.

8 0
2 years ago
What is a silurus glanis fish and what does it look like?
Vera_Pavlovna [14]
It is a wels catfish also called sheatfish it also looks like a catfish
6 0
3 years ago
When ants get food from plants and protect the plants from being eaten, what kind of relationship do these two species have? Plz
Mariana [72]

Answer:

Myrmecophytes, otherwise known as ant-plants, share a mutualistic relationship with a colony of ants. This is when two organisms of different species each benefit from the activity of the other. There are over 100 different genera of myrmecophytes that can be found across the world's tropical regions

Explanation:

4 0
3 years ago
A substance is very sour and has a ph of 4. what color would you expect it to turn a piece of litmus paper
Anika [276]
If a substance is very sour and has a ph of 4, then you would expect the litmus paper to turn into the shade of red. A substance that is sour and has a pH level that is below 7 would indicate that the substance is an acid or has acidic properties. For an acidic solution, the litmus would be red in color. If a blue litmus paper is used, then it would turn into red while if a red litmus paper is used, then it would remain as red. There is also a general type of litmus paper where the color change range from violet to red. A litmus is widely used in distinguishing acid and bases. It can be used in liquid solutions and in gas mixtures. <span />
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3 years ago
Is this correct? Brainliest involved a
ELEN [110]

Answer:

the answer B

Explanation:

3 0
2 years ago
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