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
olasank [31]
3 years ago
12

Which of the following best describes scientific theory?

Biology
1 answer:
STatiana [176]3 years ago
6 0

D.

Theories always change. That's why science always changes

You might be interested in
Which symptom is unique to amyotrophic lateral sclerosis (als) and is not observed in multiple sclerosis (ms)?
Nonamiya [84]

ALS is a rapidly progressive and fatal neuromuscular disease. MS is a scarring and hardening of the sheath around the nerves in the brain, spinal cord, and optic nerve. MD is a muscular disorder with specific kinds of MD involving different muscles in the body. MD is almost exclusively hereditary

<h3>What is Amyotrophic lateral sclerosis (als) ?</h3>

The motor neurons steadily degrade and eventually die as a result of ALS. The brain, spinal cord, and all the muscles in the body are connected by motor neurons. When motor neurons are destroyed, they stop communicating with the muscles, which prevents the muscles from working.

  • Five to ten percent of all ALS cases are familial, meaning the patient gets the illness from a parent. Typically, only one parent needs to have the disease-causing gene to have familial ALS.

Learn more about Amyotrophic lateral sclerosis here:

brainly.com/question/14863487

#SPJ4

4 0
1 year ago
The ____ system is like a chemistry lab which breaks down complex proteins and starches into simple chemicals
Elena-2011 [213]
The answer would be C. Digestive
The <em />circulatory system <em>circulates</em> the blood and lymph throughout the body. The excretory system <em>excretes</em> the body wastes.
7 0
3 years ago
LET'S CHECK
Daniel [21]

Answer:

I.

4) The deoxygenated blood then travels through the veins and enters the right side of the heart.

1) The blood leaves the heart through the aorta.

2) The blood travels throughout the body via the arteries to the capillaries.

3) In the capillaries, the exchange of nutrients and gases occurs. Oxygen is absorbed by the cells while carbon dioxide is released into the blood.

II.

2) Exchange of gases happens as oxygen is received by the blood and carbon dioxide is released.

1) The deoxygenated blood flows from the right side of the heart to go to the lungs.

3) The oxygenated blood then returns to the left side of the heart.

Explanation:

4 0
3 years ago
Identify the main difference between prokaryotes and eukaryotes.
ryzh [129]

Answer:

Prokaryote slack a nucleus and membrane bound organelles while eukaryotes have a nucleus and membrane bound organelles

Explanation:

None of the other answers make sense and also I took bio this year. Hope this hellped

Give me brainliest?

5 0
3 years ago
. What does it mean that the nitrogen gas needs to be "fixed"?
spin [16.1K]

Answer:

Nitrogen cycle

Explanation:

Nitrogen fixation is the process by which atmospheric nitrogen is converted by either a natural or an industrial means to a form of nitrogen such as ammonia. In nature, most nitrogen is harvested from the atmosphere by microorganisms to form ammonia, nitrites, and nitrates that can be used by plants.

4 0
3 years ago
Other questions:
  • Which region of the operon does the repressor bind to?
    10·2 answers
  • What process causes your feet to feel hot when you walk on a hot surface
    8·1 answer
  • Why do plants make sugars inside their cells
    13·2 answers
  • How is gametes defined as a scientic form. Is it in which it is for example, dominant trait Aa and recessive trait aa are bred t
    15·1 answer
  • 4. When one nucleotide contains adenine, what type of base is the adenine attached to on the
    11·2 answers
  • Help will give brainliest
    11·1 answer
  • 4. What is the mass of N2H4 gas in a 350.0 mL container at 50.0 °C, if the pressure of the gas is
    11·1 answer
  • Why is it important to know the pH of different solutions?
    15·1 answer
  • The male tubes that transport sperm from the testes are called?
    6·2 answers
  • How to cross trihybrids
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!