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
a_sh-v [17]
3 years ago
8

The structure of dna is held together by ?

Biology
1 answer:
daser333 [38]3 years ago
8 0

Answer:

B

Explanation:

nitrogenous bases on the two strands of DNA pair up, held together by weak hydrogen bonds.

You might be interested in
When in solution, a molecule that moves slowly across an artificial membrane moves rapidly across a plasma membrane. This molecu
labwork [276]

Answer:

b. active transport

Explanation:

Active transport -

It is the movement of the molecules across the membrane via a region of lower concentration towards the region of higher concentration , and in some cases , the flow is independent of the concentration .Its is known as active transport .

This process needs some amount of energy in the form of cellular energy .

Hence , the correct term for the given statement is active transport .

5 0
3 years ago
Is a group of species that includes an ancestral species and all of its descendants?
Alekssandra [29.7K]
A clade is a group of species that includes an ancestral species and all of its descendents
5 0
3 years ago
Which descriptions accurately apply to vascular plants? Check all that apply.
atroni [7]

Answer: have true roots, stems, and leaves

may have seeds

may not have seeds

have vascular tissue

Explanation:

some vascular plants have seeds and some do not.

they have vascular tissue such as xylem and phloem

they have true roots, stems, and leaves

6 0
3 years ago
Read 2 more answers
Dichotomous Key! Please help
inna [77]

Answer:

the presence of antennae

Explanation:

7 0
3 years ago
Read 2 more answers
all the major organs of the body are formed by the week 10 of gestation. which process makes it possible ?
deff fn [24]

<span>The process which makes it possible is Differentiation.</span>

<span> G</span><span>estation means the process by which something develops.</span>

<span>Differentiation means the development from the one to many.</span>

8 0
3 years ago
Other questions:
  • To protect biodiversity worldwide, many conservationists suggest that at least 10 percent of Earth's land be set aside as protec
    6·1 answer
  • Which letter below would represent Adenine?*<br>А, В, or C​
    13·2 answers
  • Where might a plant store carbohydrates ?
    13·2 answers
  • What happens to the centrioles during mitosis
    14·1 answer
  • What does the FDA think drug companies will do regarding voluntary label changes on antibiotics for livestock?
    8·1 answer
  • Diffusion takes place
    8·1 answer
  • What is the predominant mode of asexual reproduction in a sponge?
    15·1 answer
  • Your town is considering building a bridge across a large lake. Much of the town's drinking water comes from this lake. Before
    6·1 answer
  • What determines the categorization of fungi?
    15·1 answer
  • The graphic shows a model of a cell.
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!