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vlabodo [156]
3 years ago
11

The first strands of DNA were observed through which microscope? tunneling microscope simple microscope compound light microscop

e electron microscope
Biology
2 answers:
pickupchik [31]3 years ago
8 0
Technically, X-ray crystallography, which is like an unfocused electron microscope, was first used to see DNA structure. Scientists today use more refined electron microscopes for researching DNA and its structure.
Norma-Jean [14]3 years ago
5 0

Technically, X-ray crystallography, which is like an unfocused electron microscope, was first used to see DNA structure. Scientists today use more refined electron microscopes for researching DNA and its structure

Explanation:

The electron microscope is a kind of microscope that uses a beam of electrons to produce an image of the specimen. It is acceptable of important special magnifications and has a greater resolving power than a light microscope, providing it to see much smaller objects in precise detail.

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With the help of labelled diagram explain the menstrual cycle in adolescent girls​
MissTica

Answer:

it is diagram okk

Explanation:

female reproductive system undergoes some changes and those changes repeat at interval of every 28-30 days. this repetative changes are called menstrual cycle. it is natural process, controlled by four hormones. those four hormones follicle stimulating hormone,luteinizing hormone, estrogen and progesterone. one of several follicle in ovary starts to develop along with oocyte present in it,under effect of follicle stimulating hormone. developing follicle secrets estrogen. endometrium of uterus starts to regenerate under effect of estrogen. it bursts under effect of luteinizing hormone and oocyte is released. this is ovulation. remaining tissues of burst follicle forms corpus luteum. corpus luteum starts to secrets progesterone. endometrial glands secrets their secretion under effect of progesterone. such endometrium is ready for implantation of embryo.

7 0
3 years ago
How does the term “selectively permeable” apply to a membrane?
Vladimir79 [104]

Answer:

Explanation:Selectively permeable means a membrane allows the passage of some molecules or ions and inhibits the passage of others. The capacity to filter molecular transport in this manner is called selective permeability

6 0
2 years ago
Read 2 more answers
Identify a probable reason that the dark moths survived while the light moths did not.
kirill [66]

Answer:

This question has little context, but I understand what you are trying to say.

The reason why dark moths survived while light moths weren't able to survive is due to the dark moths having conditions that allowed them to camouflage better than the light moths. An environmental condition that would allow this would be the dark moths and the light moths living in the same dark environment.

Explanation:

7 0
3 years ago
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Which of the following pairs is not a correct monomer/polymer pairing?
ahrayia [7]
C, triglyceride and cellulose

triglycerides make up lipids. cellulose is not a lipid, but a carbohydrate. carbohydrates are made from sugars :)
8 0
3 years ago
Construct a food web
Otrada [13]

Answer: can u like add a picture or tell me what its about

Explanation:

6 0
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