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
posledela
3 years ago
7

Explain how the appearance of the chromatogram might change if the chromatographic paper were initiallywet with water or had com

e in contact with the skin
Biology
1 answer:
In-s [12.5K]3 years ago
4 0
Our hands have oils that will change the polarities of the substances when doing the chromatography. Since the purpose<span> of chromatography is to separate the compounds in a mixture we would end up with altered results.</span> The same goes for getting the paper wet.
You might be interested in
Plsss helppp meeeeeeeeee
goldenfox [79]
1. Platypus, Brown Bear, Lion, and House Cat.
2. Brown Bear.
3. House Cat.

In this graph you are basically going down the line (or up towards the house cat) looking at the qualities each animal has. So whatever is on the bottom (hair and mammary glands) all animals above it has it. If the quality passes the animal, the animal doesn’t have that quality.
Hopefully this explanation is clearer with the answers.
4 0
3 years ago
There are two types of pea plants: those that produce round seeds and those that produce wrinkled seeds. A single gene controls
Mkey [24]
Dominant, <span>if a dominant allele (wrinkled) and a recessive allele (round) are together, forming a heterozygous plant, any possible combination of alleles is possible when the plant breeds, so the seed with a wrinkled allele can still produce round seeds. </span>
3 0
3 years ago
Agents that paralyze skeletal muscle by simple competitive inhibition of acetylcholine at muscle receptor sites are called?
Fed [463]

Agents that paralyze skeletal muscle by simple competitive inhibition of acetylcholine at muscle receptor sites are called?

a. nondepolarizing

b. depolarizing

c. antagonizing

d. repolarizing

Answer:

a. nondepolarizing

Explanation:

As the nerve impulse arrives, the synaptic end bulbs of the motor neurons release acetylcholine in the synapse. Acetylcholine binds to its receptors present at the motor endplate. This results in the opening of an ion channel in the ACh receptor to allow the movement of the Na+ into the cell. This makes the inside of the muscle fiber more positively charged, that is, depolarized.

Depolarization triggers a muscle action potential. Drugs or chemicals that paralyze skeletal muscle by competitive inhibition of acetylcholine at muscle receptor sites are called non-depolarizing as they do not allow the acetylcholine to facilitate the depolarization of the muscle fiber.

3 0
3 years ago
A, b, c, d. first to answer gets brainliest
frozen [14]

Answer:

I'm pretty sure the answer is C

Explanation:

Sorry if wrong.

6 0
3 years ago
Read 2 more answers
The tissue(s) that is/are considered excitable because of the ability to generate electrical signals is/are called ________ tiss
REY [17]

Answer:

Muscle tissue and neural tissue

Explanation:

Excitability refers to the ability of muscle and nerve cells of the respective tissues to respond to a stimulus and generate an action potential. Both muscle cells and neurons respond to a stimulus and convert it into the action potential.

Action potential refers to the electrical signal. Propagation of action potential along the membranes of these cells results in muscle contraction and functioning of neurons.

The membrane potential of these cells changes in response to the stimulus and the changed potential is propagated to the other cells.

5 0
3 years ago
Other questions:
  • What kind of section would have to be made to cut the brain into anterior and posterior parts?
    11·1 answer
  • Severe weather is caused by temperature and which other two physical factors?
    8·1 answer
  • What is a point of view of an object used to determine another objects motion.
    7·1 answer
  • Use what you know about natural selection to fill in the blanks in the hypothesis. It should answer the lab question, “What is t
    8·2 answers
  • Which of the fallowing is the most serious effect of water pollution for humans?
    5·2 answers
  • cell membranes are made of phospholipids which form a hydrophobic barrier. How does water pass through the cell membrane?​
    7·1 answer
  • how do you think the hardness and density of a mineral that formed through metamorphism would compare to a mineral that formed t
    6·1 answer
  • To use less of a resource
    14·1 answer
  • What does newton's first law of motion benefits
    10·2 answers
  • Pooh had a colony of tiggers whose stripes went across the body. His American pen-pal, Yogi, sent him a tigger whose stripes ran
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!