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ki77a [65]
2 years ago
9

Does anyone need help with something dealing with space science???

Biology
2 answers:
Sladkaya [172]2 years ago
6 0

Answer:

I think I am good thank you for asking?

Explanation:

Rzqust [24]2 years ago
4 0

Answer:

yah, what's is the effect of atmosphere of a planet with the escape velocity of that planet, and is the black hole like a portal, or?!

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How many oxygen molecules can one hemoglobin molecule transport?
Zigmanuir [339]

Answer:

four oxygen molecules

Explanation:

The hemoglobin molecule has four binding sites for oxygen molecules: the iron atoms in the four heme groups. Thus, each Hb tetramer can bind four oxygen molecules.

5 0
3 years ago
Innate immunity________.
labwork [276]

Answer:

The answer is A.

Explanation:

Since only 1 of the options is wrong, i assume you are looking for that one.

Two types of immunity systems, innate immunity and adaptive immunity. Adaptive immunity is formed when it is exposed to a harmful substance, vaccines for example create adaptive immunity.

Innate immunity is present at birth which consists our skin protects us physically, chemical substances in our blood that protect us from bacteria and infections and also our blood cells such as T cells.

Since innate immunity forms one of the first lines of defense in our immune system and is the first to respond to a threat in a few hours down to as little as minutes, it is not slower than adaptive immunity in its response to infections and pathogens.

I hope this answer helps.

4 0
3 years ago
Why might archaeologists unearthing the terracotta soldiers be at risk of lead exposure?
jekas [21]
Idk somebody tell me plz and add me on snap makiyah_cute no adults add me only 12 and older ✌
8 0
3 years ago
Almost all animals share the following characteristics except
Aleks [24]

The correct answer is A.

Animal cells do not have a  cell wall.

A cell wall is the rigid, outermost covering of plant cells and is made up of cellulose.  It is absent in animal cells. The cell wall is visible under a light microscope.

Animal cells are instead covered by a cell membrane. It is made up of lipids, proteins, and small amounts carbohydrates. It is a thin and delicate structure  that can only be seen using an electron microscope.

4 0
3 years ago
Read 2 more answers
Thale cress is a plant that is genetically engineered with genes that break down toxic materials. Which type of organism is desc
MArishka [77]
The correct answer for the given question above would be option B. Thale cress <span>is a plant that is genetically engineered with genes that break down toxic materials, so this would be a transgenic type of organism. By definition, transgenic organisms undergone genetic engineering wherein genes of a particular specie is modified or transplanted into another. Hope this helps.</span>
5 0
3 years ago
Read 2 more answers
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