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Karolina [17]
3 years ago
13

The immune system tries to stop invasions by foreign agents by either killing cells directly or by

Biology
2 answers:
salantis [7]3 years ago
7 0
Directly The immune system is designed to defend the body against foreign or dangerous invaders. Such invaders include

Microorganisms (commonly called germs, such as bacteria, viruses, and fungi)

Parasites (such as worms)

Cancer cells

Transplanted organs and tissues

To defend the body against these invaders, the immune system must be able to distinguish between

What belongs in the body (self)

What does not (nonself or foreign) normal immune response consists of the following:

Recognizing a potentially harmful foreign antigen

Activating and mobilizing forces to defend against it

Attacking it

Controlling and ending the attack

If the immune system malfunctions and mistakes self for nonself, it may attack the body’s own tissues, causing an autoimmune disorder, such as rheumatoid arthritis, Hashimoto thyroiditis, or systemic lupus erythematosus (lupus).
Oliga [24]3 years ago
7 0
Some immune cells kill it by phagositos. Some of them(T cells,B cells) kill them via producing antibodies
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Biologist use what to create a cladogeam and why
Fynjy0 [20]

Answer:

DNA/ Traits

Explanation:

they trace species origins back and find common point and every time they do, they connect them on the line, creating something that looks like "branches" google "cladogram"

8 0
3 years ago
Which process occurs as a zygote divides to form a multicellular embryo?
Snezhnost [94]

Answer: meiosis

Explanation:

7 0
3 years ago
What type of snake is this?
Rashid [163]
I think that is a common garden snake
7 0
3 years ago
The PCR primer ‘D7S820’ is used to amplify the D7S820 locus. Using this gel below, determine whether each person (M1, P1, P2, C1
Ahat [919]

Answer:

1) M1 is heterozygous since it contains 2 bands, which means that it contains one recessive and one dominant allele

P1 is homozygous for this locus, since it contains a single band or is known to be homozygous for the locus or gene.

P2 is hetozygous for this locus because two bands appear in which each band represents one allele for the gene.

ChildC contains two gel bands, representing two alleles and is therefore heterozygous

P1 is the father of the child C1, if we look at the gel, each father shows a similar band, one coinciding with the mother and the second with the father p1

As for the paternity study, the PCR test is not useful, since it provides asymmetric results, thus only one strand information will be provided, and because the DNA is double-stranded, a more complete study is required.:

3 0
3 years ago
What is the most common blood type? What is the least common blood type
stiv31 [10]
Hello,

What is the most common blood type?: The most common blood type would be O Positive (O+). About 39 percent of the population has this blood type.

What is the least common blood type?: The least common blood type would be AB Negative (AB-). About 1 percent of the population has this blood type.

Thanks,

-Detector
5 0
3 years ago
Read 2 more answers
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