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
Paraphin [41]
3 years ago
10

How does light travel?

Biology
2 answers:
ELEN [110]3 years ago
3 0
D, light can travel in the air or a vacuum and the speed is constant whether the light source is stationary or moving.
Butoxors [25]3 years ago
3 0

Answer: The correct answer is option(D).

Explanation:

Light travels in a straight line as a wave. It does not require any medium or material to travel like sound waves which means it can travel in vacuum.The speed of the light  from the special theory of relativity is a constant value of  34\times 10^{8} m/second.

Hence, the correct answer is option (D).

You might be interested in
What is the function of the central nervous system?
katrin2010 [14]
The answer is D) all of the above
3 0
3 years ago
In muscle cells, fermentation produces _____.
algol13

Answer:

The correct answer is E. Lactate and NAD+

Explanation:

Fermentation occurs in anaerobic condition and in humans, most of the energy is provided by aerobic respiration but when the body needs a lot of energy in a very quick time like in sprinting then muscles use lactic acid fermentation to gain energy.

After the consumption of all stored ATP during intense work, our body starts lactic acid fermentation to gain ATP. In lactic acid fermentation, the pyruvate molecule that was produced during glycolysis is converted into lactate molecule. In this process, NADH is oxidized to NAD+.  

Therefore in lactic acid fermentation lactate and NAD+ are produced. So the correct answer is E.

8 0
4 years ago
What’s your favorite vehicle and why
vodomira [7]
Bmw i8 because i just like the way they sound and look
6 0
3 years ago
Read 2 more answers
Hormone X activates the cAMP second messenger system in its target cells. The greatest response by a target cell would come from
zvonat [6]

Hormone X activates the cAMP second messenger system in its target cells. The greatest response by a target cell would come from applying a molecule of cAMP to the extracellular fluid surrounding the cell.

<h3>What is cAMP?</h3>

This is an intracellular second messenger molecule, which regulates activity of hormonal action.

the cAMP stands for cyclic adenosine monophosphate.

<h3>What is a second messenger molecule?</h3>

The molecules that transfer the signal received from the cell surface to the target hormone are called the second messenger molecules.

Learn more about extracellular fluid here:- brainly.com/question/7938474

#SPJ4

3 0
2 years ago
A certain first-order reaction a → b is 25% complete in 42 min at 25°c. What is the half-life of the reaction?
yan [13]

Answer:

t_{\frac{1}{2}} = 101.16 minutes

Explanation:

For a First order reaction, the rate constant is determined by

k = \frac{2.303}{t} log \frac{a}{a-x}

Where

k= rate constant

t= time required for a reaction

a= initial concentration

x= amount of reactant decomposed in time t

a-x= amount of reactant left after time t

Let the initial concentration be 100

Then

x = 25\\a-x = 75

Substituting the given values in above equation, we get -

k = \frac{2.303}{42} log \frac{100}{75} \\

k = 6.85 *10^{-3}

Also,

k = \frac{0.693}{t_{\frac{1}{2}} } \\t_{\frac{1}{2}} = \frac{0.693}{6.85 *10^{-3}}\\

t_{\frac{1}{2}} = 101.16 minutes

Read more on Brainly.in - https://brainly.in/question/6804668#readmore

7 0
4 years ago
Other questions:
  • During the Period (when dinosaurs lived), do you think they were more plants or animals in Saudi Arabia or in the US Why? (I NEE
    7·1 answer
  • What best explains why angiosperms are the most diverse and successful plant group today
    6·2 answers
  • Definition of chromosomes?
    5·1 answer
  • In some cattle, the genes for red hair and for white hair are codominant. Cattle with alleles for both red and white hair have b
    6·2 answers
  • 1. Zygomycetes reproduce asexually through the haploid spores formed in , or sexually through diploid nuclei formed in .
    12·1 answer
  • Which of these would have the lowest kinetic energy?
    13·2 answers
  • What can we say about the
    14·1 answer
  • How did this change the way you think about cities of the future?
    14·1 answer
  • How much higher might sea level rise by 2100
    6·1 answer
  • Similarities between photosynthesis and cellular respiration
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!