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
mr_godi [17]
3 years ago
7

How many electrons does beryllium have?

Biology
1 answer:
zlopas [31]3 years ago
7 0
There are four total electrons to balance out the four protons
You might be interested in
The ""preservationist ethic"" is associated with ______________ .
oksian1 [2.3K]

Answer: maintenance the health of the natural world. Through allocation,exploitation and protection

Explanation:

This involves the health state of the living organisms of the word :the vegaation, the aquatic organisms and ithe biodervasity.

3 0
3 years ago
On what basis have biologists determined that Archaea and Bacteria are not closely related?
Inga [223]
C. their DNA is very different
8 0
3 years ago
What are molecules and how are they used in running? Evidence
Karolina [17]

Answer:

Osmosis helps cells maintain homeostasis because a cell needs to maintain a specific water balance so that chemical reactions can take place. Osmosis can also be used to balance out the concentration of other molecules (such as sugar or salt) present on either side of a cell membrane.

Explanation:

Homeostasis is the ability of a system to regulate its internal environment through maintaining a stable, relatively constant set of properties such as temperature and PH. Key Terms homeostasis : The ability of a system or living organism to adjust its internal environment to maintain a stable equilibrium, such as the ability of warm-blooded.

Hope this helps.

4 0
3 years ago
List the layers contained in the atmosphere and describe what is in each layer.
lisabon 2012 [21]

Answer:

Exosphere -The exosphere layer is mainly composed of extremely low densities of hydrogen, helium, and several heavier molecules including nitrogen, oxygen, and carbon dioxide closer to the exobase. The atoms and molecules are so far apart that they can travel hundreds of kilometers without colliding with one another.

Thermosphere - The aurora (Northern Lights and Southern Lights) mostly occur in the thermosphere. The thermosphere is a layer of Earth's atmosphere. The thermosphere is directly above the mesosphere and below the exosphere. ... Temperatures in the upper thermosphere can range from about 500° C (932° F) to 2,000° C (3,632° F) or higher.

Mesosphere- Most meteors burn up in the mesosphere. A type of lightning called sprites sometimes appears in the mesosphere above thunderstorms. Strange, high-altitude clouds called noctilucent clouds sometimes form in this layer near the North and South Poles.

Stratosphere-The stratosphere is the second major atmospheric layer above the troposphere, extending in altitude from about 8 to 30 miles high. No weather occurs in the stratosphere. The statosphere contains over 15% of the total mass of the atmosphere, and is where the ozone layer is located.

Troposphere-The troposphere is the lowest layer of Earth's atmosphere, and is also where nearly all weather conditions take place. It contains 75% of the atmosphere's mass and 99% of the total mass of water vapour and aerosols.

i hope this helps, good luck :)

7 0
3 years ago
Pls help due tomorrow!!!!
fomenos

Answer:

At the beginning you start out with a lot of energy and stamina but as you progress, maybe five minutes in, you start to get out of breath. While breathing harder, you are trying to intake more oxygen and at the 10 minute mark you can feel your muscles burning a little bit and tire out more. At this point you are gasping for oxygen because your muscles are deprived of oxygen and you body makes lactic acids which you muscles can use instead of oxygen. By the end of it you are very tired.

Explanation:

Hope this helps! I am not sure how scientific of an explanation you wanted.

4 0
3 years ago
Other questions:
  • What aspect of chromosome behavior most clearly accounts for mendel's law of independent assortment?
    9·1 answer
  • PLEASE HURRY 10 PTS AND BRAINLIEST IF RIGHT
    14·2 answers
  • Which of the following do yeast produce during fermentation
    7·1 answer
  • HELPPPPPPPPP PLEASEEEEE
    11·1 answer
  • When active transport is moving molecules, it will allow molecules to move from?
    6·1 answer
  • O type blood contains what type of antigens?
    15·2 answers
  • Plsssss answer this question
    5·1 answer
  • The direction of force of Earth's magnetic field is from the geographic South
    7·2 answers
  • Why should we conserve wild animals?<br><br>Hurry up ​
    12·2 answers
  • La cantidad de energía que llegaría al cuarto nivel trófico en un ecosistema
    11·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!