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
Andrei [34K]
3 years ago
13

10. Which of these statements is correct about the circulatory system?

Biology
1 answer:
aalyn [17]3 years ago
5 0

Answer:

  • all are true
<h2>mark brainleast plz please </h2>
You might be interested in
In gel electrophoresis DNA molecules migrate from _____ to _____ ends of the gel.
masha68 [24]

Answer:

b, negative ... positive

Explanation:

Gel electrophoresis is  a method used in molecular biology for DNA analysis. This method includes the separation of DNA fragments through the gel according to their size or shape under the influence of aplid electric current. Since the fragments of DNA are negatively charged, they will move from negative to positive end.

Small fragments will move faster than larger ones.

One of the major source of error is contamination of the DNA sample. This refers to the presence of foreign DNA in the sample of interest. As a consequence, the gel will have more bands.

Another errors might appear as a result of wrong concentration of the gel, wrong buffer pH, high/low concentration of dye etc.

8 0
3 years ago
Explain why hair is a derived character for clade mammalia but having four limbs is not. for which clade is four limbs a derived
Vsevolod [243]
For the answer to the question above, I think the answer is simply because <span>four legs characteristic is not special to mammals but the hair that is something more important and special characteristic of the mammals, that's why. I hope this helps
</span>
5 0
3 years ago
Which statement describes how diffusion works? answer for edgenunity ​
Gelneren [198K]

Answer:

Diffusion is the movment of particles from an area of high concentration to a low concentration down a concentration gradient

7 0
3 years ago
Briefly differentiate "White Matter" &amp; "Grey Matter".
evablogger [386]

Answer:

The CNS, or central nervous system is comprised of neurons, the cell units that form it. These cells, in turn, are formed by their cell bodies, the dendrites on them and the terminal ends of the axons, which are like the connectors, or roadways, for neurons. When viewed on a microscope, brain tissue, particularly, looks stained with two different colors: grey, or pinkisk, for the grey matter, and whiter for the white matter, which are the axons. This is basically why the two are called grey matter and white matter of the CNS.

So one difference between these two matters is the color they display when viewed. The second is the parts of the neuron that form the two; while the white matter is formed from the neuronal axons, the grey matter is formed by the dendrites, cell bodies and axonal terminals. A third differentiation is that most synaptic activity takes place in the grey matter, while most conduction of information from the cell bodies is performed by the axons.

8 0
3 years ago
Please answer quickly!
kirill [66]
By looking at the diagram, and my knowledge of Punnett squares, i would say B. 4:16
4 0
3 years ago
Other questions:
  • Label given to current generation of 18 to 25?
    5·2 answers
  • Your immune system consist of what that fight disease
    15·1 answer
  • What is the name of the enzyme that joins individual nucleotides?
    13·1 answer
  • Suppose you want to take pictures of your friend's soccer game. You'll be preparing your camera. How should you do it?
    8·1 answer
  • Producers are the most important biotic factor in an ecosystem<br><br>true or false?
    6·1 answer
  • The properties of an unknown element are listed below.
    14·1 answer
  • TIME REMAINING
    7·2 answers
  • What is the process of mitosis?
    7·2 answers
  • Are cell membranes in plant or animals or both?
    10·1 answer
  • What happens when a greater number of people use resources? tragedy of the commons
    14·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!