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valkas [14]
3 years ago
9

What is a the cell theory

Biology
1 answer:
nirvana33 [79]3 years ago
3 0

Answer:

Cell theory states that living things are composed of one or more cells, that the cell is the basic unit of life, and that cells arise from existing cells.

Explanation:

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Can someone answer this please :)
IrinaK [193]
The answer will be for you U
7 0
3 years ago
What is free nitrogen?
UNO [17]

Answer:

Nitrogen thet cannot be used by organisms. C.

Explanation:

Free nitrogen is simply molecular nitrogen (N2). Nitrogen, in its molecular form, consists of two nitrogen atoms bound together with a tripple bond. Because it is very stable, N2 is typically nonreactive, and takes a lot of energy to break them apart. Among these are the amino acids necessary for life to begin and which are the building blocks DNA is made from. Basically, any nitrogen that is in an organic compound is considered “fixed” nitrogen and N2 is considered to be “free” nitrogen

5 0
3 years ago
Read 2 more answers
Duchenne muscular dystrophy is a serious condition caused by a recessive allele of a gene on the human x chromosome. the patient
dedylja [7]
Duchenne muyscular dystrophy is caused by a mutation on the X chromosome, so a male gets it from his mother's X, if she is a carrier. The male child gets a Y and no X from his father, so the disease is always transmitted through the X from the mother. If a female gets Duchenne muscular dystrophy she has to have two X chromosomes, one from a carrier mother and another from from an affected father. This is virtually impossible because most males die before childbearing age and there is no way a female child can get an X from a man who does not live long enough to procreate. About eight percent of carrier women do show some muscle weakness, but they do not have the disease. 
6 0
3 years ago
Prochlorobacteria are primitive, photosynthetic bacteria that are used in the manufacture of dairy products.
lesya692 [45]

Answer:

(b) - False

Explanation:

Prochlorophyte bacteria are photosynthesizers and have the same chlorophyll found in algae and vegetables, studies claim that these bacteria are the most abundant beings on the planet, accounting for half of all photosynthesis performed in the oceans.

Prochlorophyte bacteria can be divided into <em>Prochloron</em>, <em>Prochlotrix</em> and <em>Prochlorococcus</em> genera.

However, <u>prochlorobacteria</u> are not responsible for the production of dairy products, in which the most associated bacterial genera are <em>Lactobacillus</em> and <em>Streptococcus</em>. This last statement implies that alternative b is the correct one.

4 0
3 years ago
If liz exhibited symptoms of impaired work performance, general fatigue, pale skin, depressed immune function, impaired cognitiv
satela [25.4K]

Answer;

-iron-deficiency anemia.

Liz is likely to be suffering from iron-deficiency anemia.

Explanation;

- Iron deficiency anemia develops when body stores of iron drop too low to support normal red blood cell (RBC) production. It may be caused by the Inadequate dietary iron, impaired iron absorption, bleeding, or loss of body iron in the urine.

4 0
3 years ago
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