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
kicyunya [14]
3 years ago
9

What are the four predominant elements in biology ?

Biology
2 answers:
belka [17]3 years ago
8 0

Answer:Carbon, Hydrogen, Oxygen and Nitrogen.

Explanation:

They make up 96% of the atoms that are in living things, so they would be considered major chemicals.

Alenkasestr [34]3 years ago
6 0

Answer:

The cells of living things are made mainly of four elements: carbon, hydrogen, oxygen and nitrogen. They make up 96% of the atoms that are in living things, so they would be considered major chemicals. However, depending on how you define major, other elements that only make up a few percent of cells can top the list.

Explanation:

You might be interested in
What is the outer surface of Schwann cell in adjective form
NARA [144]
I am not sure if this question means the adjective form or the adjacent form? However, a Schwann cell is a type of glial cell and its main function is to support neurons. Adjacent to the Schwann cell are nodes of Ranvier which are gaps in the myelinated axons, and are believed to assist in potential generation among other things.
7 0
3 years ago
Which would be an adaptation for living in the tundra
Slav-nsk [51]

Answer:

b. hibernation to lower metabolism in the winter

Explanation:

Tundra, besides the one I live in apparently, are very, very dry because of the cold. This means that it may be helpful to hibernate for the part of the year where it is even too cold for plants and other animals.

6 0
3 years ago
In a few sentences, describe how you would design an experiment to determine whether elephants can detect and interpret the call
miss Akunina [59]

"If I heard a herd of elephants talking to one another and being together regularly, I would capture their noises. Then I would play them into the ground at a separate spot far away from the herd of elephants. I would observe the elephants' reactions while I recorded them by playing various recordings through the ground (ex. if they freeze in place when they feel the vibrations, how they react afterwards, etc.). To compare and analyze the elephants' behavior, I would record this information and repeat the procedure several times."

Behavior- The reactions of a complete live organism to internal and/or external stimuli are internally coordinated behaviors.

To know more about the Behavior, click on the below link,

brainly.com/question/28272666

#SPJ4

3 0
1 year ago
Neurons, as with other excitable cells in the body, have two major physiological properties: ____________ and ____________. A ne
mars1129 [50]

Answer:

Neurons, as with other excitable cells in the body, have two major physiological properties: irritability and conductivity. A neuron has a positive charge on the outer surface of the cell membrane due in part to the action of an active transport system called the sodium potassium pump. This system moves sodium (Na+) out of the cell and potassium (K+) into the cell. The inside of the cell membrane is negative, not only due to the active transport system but also because of intracellular proteins, which remain negative due to the intracellular pH and keep the inside of the cell membrane negative.

Explanation:

Neurons are cells with the capacity to transmit information between one another and also with other tissues in the body. This information is transmitted thanks to the release of substances called <em>neurotransmitters</em>, and this transmission is possible due to the <em>electrical properties </em>of the neurons.

For the neurons (and other excitable cells, such as cardiac muscle cells) to be capable of conducting the changes in their membranes' voltages, they need to have a<em> resting membrane potential</em>, which consists of a specific voltage that is given because of the electrical nature of both the inside and the outside of the cell. <u>The inside of the cell is negatively charged, while the outside is positively charged</u> - this is what generates the resting membrane potential. When the membrane voltage changes because the inside of the cell is becoming less negative, the neuron is being excited and - if this excitation reaches a threshold - an action potential will be fired. But how does the voltage changes? This happens because the distribution of ions in the intracellular and extracellular fluids is very dissimilar and when the sodium channels in the cell membrane are opened (because of an external stimulus), sodium enters the cell rapidly to balance out the difference in this ion concentration. The sudden influx of this positively-charged ion is what makes the inside of the neuron become less negative. This event is called <em>depolarization of the membrane</em>.

6 0
3 years ago
Ehat did geegor mendel call the yellow trait ​
Damm [24]

Answer:

Mendel and Alleles

4 0
2 years ago
Other questions:
  • Digitalized info can be used by computers true or false
    12·1 answer
  • Real life examples of . Cytoplasm
    14·1 answer
  • Which of these statements is true about adaptive evolution? The ability to learn plays a key role in the process of adaptive evo
    14·1 answer
  • Which statement below is true? Group of answer choices Electron microscopes allow us to see true color of the specimen Only bact
    6·1 answer
  • A student needs to prepare 250 mL of a 0.550 M aqueous solution of sucrose, C 12 H 22 O 11 ( aq ) , which is used frequently in
    5·1 answer
  • What are energy-giving nutrients
    11·1 answer
  • Please and thank you!
    11·1 answer
  • In one of the first steps in Prophase I of meiosis,
    15·1 answer
  • Some plants require water, light, minerals, oxygen, and carbon dioxide to survive. These are examples of __________ that plants
    8·1 answer
  • Help please!! BRAINLIEST AND 10 POINTS!!
    9·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!