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
ioda
3 years ago
15

The evolution from vesicles to true cells was best facilitated by the development of (2 points) a membrane separating the cell f

rom its environment organic molecules:______.
a. such as carbohydrates and lipids self-replicating molecules,
b. such as RNA and DNA inorganic molecules,
c. such as nitrogen and oxygen
Biology
1 answer:
Tpy6a [65]3 years ago
6 0

Answer:

b. such as RNA and DNA

Explanation:

DNA and RNA represent essential molecules present in all organisms. These nucleic acids (DNA and RNA) are composed of large chains of nucleotides that function to synthesize proteins required for cellular processes and to produce cell structures. Both RNA and DNA are highly stable biomolecules capable of storing and transmitting genetic information, which has been a requisite for the evolution of modern cells. Moreover, it is important to note that DNA is a double-stranded molecule and therefore it is more stable than single-stranded RNA.

You might be interested in
Please Help Me ASAP!!
Zigmanuir [339]

Answer:

Evidence of metamorphism can be indicated by <u>flat, horizontal</u> layers within the rock.

Explanation:

Metamorphic rocks refer to rocks that are modified with heat or pressure, which change their physical and chemical properties. The main reason behind this modification is the rearrangement of the mineral crystals, which occurs due to their response to the previously-mentioned properties of heat and pressure.

There could be different types of evidence of metamorphism. However, the main evidence can be indicated by the presence of <u>flat, horizontal</u> layers within the rock, also known as foliation, a process that occurs when the pressure squeezes the minerals, leading to a flat, horizontal layer. Then, scientists could analyze the composition of these layers to identify minerals or even fossils within it.

6 0
3 years ago
The term pseudoscience refers to evidence that _____.
Nataliya [291]
The prefix pseudo means "not genuine", or fake. 
So your answer is: C. Pretends to be scientific, but actually is not.
6 0
3 years ago
Abiotic factors in an ecosystem does not include which of the following?
Lunna [17]
Unlike, biotic factors, abiotic factors are considered to be non living things and or objects. These usually are the components surrounding the environment for which the organism is found in and requires.

These include : water, soil, sunlight, nutrients and minerals etc.
5 0
3 years ago
What type of microscope would be best for viewing the samples you created in real life?
makkiz [27]

Answer:

The type of microscope depends upon the type of sample created.

For observing a sample just to check out its presence of any substance, you can use a simple microscope, and to observe a sample by its morphological features with varying objective lens, you can use compound microscope. To study deep details of the sample, a microscope of high magnifying power like electron microscope can be used.  

6 0
3 years ago
Explain why in osmosis, water moves from an area of low solute concentration to and area of high solute concentration.
Lana71 [14]

Answer:

In osmosis, water moves from areas of low concentration of solute to areas of high concentration of solute.So osmosis only occurs with a semipermeable membrane, and even with the membrane some water will move both sides. MORE water will move up the concentration gradient, thus there is a net flow up the gradient.

Explanation:

4 0
4 years ago
Other questions:
  • Does fungi have cell walls
    6·1 answer
  • Earthquakes are most abundant along the?
    8·1 answer
  • An immune complex is an aggregate of which of the following?
    9·1 answer
  • Before placing the potato in the beaker, the student used an electronic balance to determine the mass of the
    8·1 answer
  • Many different host factors can influence a person’s susceptibility or resistance to infectious disease. Some factors are associ
    5·1 answer
  • Where are proteins built? (short answer plz)
    10·2 answers
  • if one parents blood type is AA and the other is Bb, is it possible for them to have a child with blood type O?
    15·1 answer
  • A(n) ____________ is the outer part of the shadow that remains partially lit during an eclipse.
    12·2 answers
  • Which of the following is not true of neutron stars?
    12·1 answer
  • Produce their own food through photosynthesis also known as producers<br> *<br> 1 point
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!