1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
muminat
3 years ago
15

Which substance is a nuclear acid

Biology
1 answer:
Oksana_A [137]3 years ago
7 0
If you meant nucleic acid, it would be DNA or RNA
You might be interested in
What are the functions of leaves? (Select all that apply.) PLEASE ANSWER ASAP AND GET 25 POINTS
Fantom [35]

The main function of a leaf is to produce food for the plant by photosynthesis. Chlorophyll, the substance that gives plants their characteristic green colour, absorbs light energy. The internal structure of the leaf is protected by the leaf epidermis, which is continuous with the stem epidermis.

Conifer Leaf.  

Microphyll Leaf.  

Megaphyll Leaf.

A leaf is an above-ground plant organ and it is green. Its main functions are photosynthesis and gas exchange. A leaf is often flat, so it absorbs the most light, and thin, so that the sunlight can get to the chloroplasts in the cells. Most leaves have stomata, which open and close.

The two main functions performed by the leaf are photosynthesis and transpiration. Photosynthesis is the process by which green plants make their food from carbon dioxide and water in the presence of sunlight.

8 0
3 years ago
The meselson-stahl experiment demonstrated that dna replication produces two dna molecules each composed of.
PtichkaEL [24]

The meselson-stahl experiment demonstrated that dna replication produces two DNA molecules each composed of the nitrogen isotopes.

<h3>What was the conclusion of the meselson-stahl experiment?</h3>

Based on observations and experimental results, Meselson and Stahl concluded that DNA molecules can reflect semi-conservatively. Investigation of semi-conservative nature of replication of DNA or the copying of the cells, DNA failed to cease there.

1958, Matthew Meselson and Franklin Stahl carried out an test on E. coli which divides in 20 minutes, to take a look at the replication of DNA. 15N (heavy) and 14N (normal) are isotopes of nitrogen, which may be outstanding primarily based totally on their densities through centrifugation in Caesium chloride (CsCl).

Read more about the Caesium :

brainly.com/question/6061477

#SPJ4

8 0
3 years ago
Can someone help me describe these rocks pls
Anna11 [10]
They are all rock with different size and shapes and are located in different areas possibly in the same areas but they all have there own unique textures from the photographs and 3 of them look like maybe a fossil of some type of when the dinosaurs where still around and the rocks on the top left corner look smooth and are a small type of igneous rocks. That have been soothed over the years.
6 0
3 years ago
If u are good at science please help (biomass)
lord [1]
don’t click :) it’s a
7 0
3 years ago
A graduate student finds an organism in a pond and thinks it is a freshwater sponge. A postdoctoral student thinks it looks more
yaroslaw [1]

Answer:

Look for cell walls under a microscope.  Fungal cells have cell walls, and animal cells do not.

if there are fungal cells in it, its fungus.

7 0
3 years ago
Other questions:
  • what can carbon atoms do that makes them different from atoms of the five other common element of life
    11·1 answer
  • Which sentence supports the main idea that online shopping has made shopping easier and more convenient?
    9·1 answer
  • The cell responsible for secreting the matrix of bone is the__________a. osteoclast. b. chondroblast. c. chondrocyte. d. osteobl
    11·1 answer
  • A marine ecologist has constructed the conceptual model shown in the diagram. Which prediction can be made from using this model
    14·1 answer
  • DNA consists of subunits or building blocks, known as ?
    12·2 answers
  • A key difference between simple sugars and more complex sugars (disaccharides and polysaccharides) is that simple sugars:
    12·2 answers
  • What are the main functions of the human skeletal system
    8·2 answers
  • Water strider able to walk on the surface of the lake
    5·2 answers
  • if the atmosphere is 21% oxygen and the cornea contains 15% oxygen, which direction will more of the oxygen molecules travel: in
    7·1 answer
  • I'm strong and non-living.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!