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
Annette [7]
3 years ago
7

Each stage of the sleep cycle lasts about how long? an hour 30 minutes 15 minutes 90 minutes

Biology
1 answer:
zalisa [80]3 years ago
8 0
Hey You!

There are 5 stages of the sleep cycle, and each stage lasts about 5-15 minutes long (usually around 10-15, though).

And that's youd answer! ^
You might be interested in
Free energy in the cell creates disorder. Cells harness free energy to drive unfavorable reactions by using Activated Carrier Mo
Tcecarenko [31]

Answer:

G

Explanation:

NADPH (Nicotinamide Adenine Dinucleotide Phosphate) and ATP (Adenosine Triphosphate) are forms in which energy is stored in metabolic reactions

5 0
3 years ago
How do the tides affect organisms that live in tidal waters?
4vir4ik [10]
<span>Tides and currents carry nutrients, moderate temperatures, and influence conditions in numerous ecosystems. The relationship between society and tides and currents is obvious as coastal cities built to withstand prescribed levels of tidal surge are now being impacted by record breaking tidal surges, and the building of solid coastal structures do not allow waves to dissipate energy on land but deflect their energy to other coastal areas along the shore.

hope this helps</span>
7 0
3 years ago
Read 2 more answers
Fossil fuels can be burned to power vehicles like cars, but they can also be used to:
Musya8 [376]

Explanation:

Generate electricity Fossil fuels can be burned to power vehicles like cars, but they can also be used to:generate electricity

5 0
2 years ago
Read 2 more answers
Theodor W. Engelmann illuminated a filament of algae with light that passed through a prism, thus exposing different segments of
WARRIOR [948]

Answer:

The correct answer is C and Engelmann conducted this experiment to prove relationship between algae and the rate of photosynthesis.

Explanation: First we must talk about 3 facts:

1) Prism scatters the white light into different wavelengths.

2) Photosynthesis, 6 carbon dioxide and 6 water molecules are consumed and 6 oxygen and 1 sugar molecule is synthesized using light energy.

6CO2 + 6H2O → C6H12O6 + 6O2

3) Aerobic bacteria breaks down sugar while using oxygen and produces water and carbon dioxide in simplified terms.

So with this experimental setup a researcher can understand the rate of the photosynthesis by increased accumulation of aerobic bacteria near algae  in certain wavelengths since they uses oxygen and tend to move close to the oxygen source (<u>see figure</u>). In this experiment there are no ways to measure heat (B), there is no known relation between wavelength of light and aerobic respiration since it can happen even in the dark (A) and finally there are no ways to measure carbon dioxide (D).

5 0
3 years ago
When the term biceps, triceps, or quadriceps forms part of a muscle's name, what does it tell you about the muscle? the muscle h
tekilochka [14]

Answer:

The muscle has two, three, or four origins, respectively.

Explanation

  • A muscle is an organ composed of muscle tissue that contract to facilitate a particular movement
  • biceps,triceps and quadriceps  are types of skeletal muscles since they use bones as levers
  • <em><u>They differ in that; the biceps have two origins, triceps have three origins and quadriceps have four origin.</u></em>
  • <em><u>Bicep is a two headed muscle thus said to have two origins ,triceps have three muscle heads and therefore have three separate origin attachment point while quadriceps are made of four muscles heads hence have four origins. </u></em>
6 0
3 years ago
Other questions:
  • A numerical description of the outcome of an experiment is called a
    13·1 answer
  • Which question can be answered using the scientific process ?
    9·2 answers
  • Do brain cells live longer than all of the cells in your body
    15·1 answer
  • Sediments with a large amount of sand are most likely at:
    15·1 answer
  • An arthropod's exoskeleton performs all of the following functions except
    10·2 answers
  • Need answer quick please thanks
    15·1 answer
  • ASI
    10·1 answer
  • HELP ME PLEASE ANSWER BOTH 13 and 14 is u can
    8·1 answer
  • What are the six factors that determine feeding of rabbits?
    9·1 answer
  • A rabbit population's birth rate is 200 rabbits born/year. The death rate is 150 rabbits dying/year.
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!