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Sedbober [7]
3 years ago
5

DNA is-

Biology
2 answers:
Sophie [7]3 years ago
4 0
D is the right answer
myrzilka [38]3 years ago
3 0

Answer:

d. all of the above

Explanation:

Deoxyribonucleic acid is a molecule composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids. Chromosomes are composed of DNA tightly-wound around histones.

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If you move a substance from one container to another and its volume changes oh, the substance is a? a) solid b) liquid c) gas d
rosijanka [135]

Answer:

d

Explanation:

With gases they escape into the atmosphere so u cant move it around withoulosing some. With liquids sometimes they get spilled or little bit gets left at the bottom of the original container

7 0
3 years ago
Read 2 more answers
Helps scientist study our universe and galaxies.
qwelly [4]

Answer:

D.) both a and c

Explanation:

Past observations made early in history as well as telescopes and space probes are very important in studying our universe and galaxies.

  • Space probes are increasingly gaining momentum as technological and scientific advancements are being made.
  • Telescopes are used to see or picture objects that are very far away in space.
  • Also, understanding the past records and historical data is essential for the study of the universe.

Microscopes are not used in galactic studies. They are only used to study the world of micro-organisms.

5 0
3 years ago
What happens when the motion of particles slows?
aliya0001 [1]
The substance is colder than it was because when particles move very quickly its either how or boiling so if its slow its cold and if it freezed the particles are well frozen
8 0
3 years ago
In a humoral or antibody-mediated immune response, specific B cells are stimulated by Helper T cells to help transform into plas
steposvetlana [31]

Answer:

An important feature that B-cells must have in order to become plasma cells and synthesize antibodies is increased rough endoplasmic reticulum in order to have the surface area needed for antibody production (option A).

Explanation:

The transformation of B cells into plasma cells to produce antibodies is a well known function of lymphocytes related to the immune response. This leads to a series of structural transformations in order to performs their function.

The rough endoplasmic reticulum (RER) has the function of contributing to protein synthesis, in conjunction with the ribosomes that are attached to it and the information of the mRNA.

<em>One of the changes experienced by B cells in their transition to plasma cells is the availability of larger RERs, in preparation for antibody synthesis, formed mostly by proteins</em>.

Learn more:

Plasma cells and humoral immune response brainly.com/question/1512036

5 0
4 years ago
Which of the following is a quality of building ledges and roofs in urban environments that lead birds to nest there?
vichka [17]

Answer: no clue

Explanation: yeah

7 0
2 years ago
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