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Natali5045456 [20]
3 years ago
6

What is responsible for identifying foreign invaders and remains in the system for a long period of time? A. Antigens. B. Red bl

ood cells. C. Lymph nodes. D. Axons. Will mark brainliest This is for Science
Biology
2 answers:
GarryVolchara [31]3 years ago
5 0
I think it is a good luck i hope i am right
Dima020 [189]3 years ago
3 0
Ok, so this is simple. I'll define each one.
Axons: Part of the nerve cell... Not this one!
Lymph nodes: Part of the throat that filters germs... Nope!
Red blood cells: These fight off intruders... NOPE!
Antigens: <span>a toxin or other foreign substance... YUP!!!</span>
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kirill [66]
It is a that is what I think
8 0
3 years ago
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Which best describes a gamete?
Natalija [7]
The answer would be C. A haploid cell.

Gametes are haploid cells made by meiosis. Male and female gametes fuse together during fertilization and form the diploid zygote.
6 0
3 years ago
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Which choice forms the organic portion of soil?
irina1246 [14]

Answer: The dead plants form the organic part of the soil.  This is because when plants die off they become dirt and mulch which is good for the plants. This is why people make a big deal out of compost. It is because it is healthy and organic for plants.

7 0
3 years ago
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Dimples and long eyelashes are both autosomal dominant traits. If a woman with no dimples, who is heterozygous for long eyelashe
leva [86]

Answer:

a) aaBb

b) Dimples and short eyelashes

c) 50%

d) 25%

Explanation:

Let the gene for dimples be A

Let the gene for eyelashes be B

a) Woman has no dimples (aa) and is heterozygous for long eyelashes (Bb) so her genotype : aaBb

b) Man is heterozygous for dimples (Aa) so he will have dimples and it is already given that he has short eyelashes (bb)

When aaBb X Aabb :

        aB         ab

Ab  AaBb    Aabb

ab   aaBb    aabb

c) Out of the four possible combinations, aaBb and aabb will be born without dimples so this couple has 50% chance to produce a child without dimples.

d) Only aabb will be born without dimples and without long eyelashes so the couple has 25% chance to produce a child without dimples and without long eyelashes.

8 0
3 years ago
Use the flow chart in the Student Guide to identify the minerals, then move the stickers to the rocks.
stealth61 [152]

Answer:

rock1 Granite

rock2 gneiss

rock3 marble

rock4 obsidian

rock5 slate

rock6 conglomerate

Explanation: Im just big brains

8 0
2 years ago
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