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
erastova [34]
3 years ago
5

Why are chemical changes considered "unseen" ?

Biology
2 answers:
Zielflug [23.3K]3 years ago
6 0
Because they take place at an atomic level and are unable to be seen by the human eye
alexira [117]3 years ago
5 0
They are unseen because it is physically impossible to see a chemical change with a human eye.
You might be interested in
The following is what type of sentence? dogs and cats sometimes fight in a veterinarian's wating room.
Galina-37 [17]
The sentence <em>Dogs and cats sometimes fight in a veterinarian's waiting room </em>is A) a simple sentence.
A simple sentence has only one independent clause, and this sentence has only one independent clause (only one verb) so it has to be simple. 
8 0
3 years ago
Read 2 more answers
GUYS PLSS HELP if you know!!! ASAP!!
inessss [21]

Answer:

your answer is positive b

4 0
3 years ago
Read 2 more answers
One of the neurotransmitters can become decreased in the area of the corpus striatum. This results in the manifestations of Park
andrey2020 [161]

The question is incomplete as it does not have the options-

A) Gamma-aminobutyric acid (GABA)

B) Acetylcholine

C) Dopamine

D) Serotonin

Answer:

The correct answer will be option- Dopamine

Explanation:

Parkinson's disease is one of the movement disorders which gets worse with time. The disease is caused due to the degeneration of the neurons in the brain which are responsible for the body movement.

Although many brain areas are affected the most common result is due to the loss of neurons in the substantia nigra in which the neurons produce a neurotransmitter called dopamine which is responsible for the body movements.

Thus, Dopamine is the correct answer.

5 0
3 years ago
Read 2 more answers
Explain the difference between sexual reproduction and asexual reproduction. Explain either an advantage or disadvantage for
ira [324]

In asexual reproduction, reproductive organs aren't used but they're used.

advantage of sexual- A lot of genetic variation. since they have DNA of two parents. they can survive more and adapt more.

disadvantage of asexual- diversity is limited. Since the organism only gets the DNA of one parent, they wouldn't be able to really survive if something happened.They would easily be extinct.

Sorry I can't really cone up with better words but I hope you get the idea. it all comes down to natural selection really if you've learned about it. Hope it helped!!!

5 0
3 years ago
:-) :-) :-) :-) :-) :-) :-) :-) :-)<br> The question is in the picture below Please help
andre [41]

Answer:

BRYAN!!! stop cheating this is your teacher if you are caught again you will be getting a message home and a suspension

Explanation:

6 0
3 years ago
Other questions:
  • If a plant has a mutation and cannot produce Casparian strips, what process won't it be able to do?
    13·2 answers
  • What does it mean to be predisposed to getting cancer? if you inherit a mutated cell cycle gene, does that automatically mean th
    5·1 answer
  • What would happen if the gene for colored spots was not passed from a moth to its offspring
    7·1 answer
  • When two separate parent plant are involved in the pollination process
    7·1 answer
  • Extracapsular ligaments stabilizing the knee include ________. Extracapsular ligaments stabilizing the knee include ________. th
    6·1 answer
  • Principles of Ecology: Part 4 FANR/MARS 1100 Law of Tolerance Survival depends on _________________________ of many factors, whi
    11·1 answer
  • What does the word diversity mean
    9·1 answer
  • 1. Many plants get energy from sunlight. 2. heterotroph get energy by eating other organisms.
    13·1 answer
  • Where does respiration occur?
    5·1 answer
  • Which statement describes a process associated with meiosis?
    7·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!