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
ASHA 777 [7]
2 years ago
13

. What is the first step of thermonuclear fusion within the Sun to form helium-4?

Biology
2 answers:
torisob [31]2 years ago
5 0

Answer:

a nucleus of Deuterium (2H)

Explanation:

formed from two protons with the emission of an antielectron and a neutrino. In the basic Hydrogen fusion cycle, four Hydrogen nuclei (protons) come together to make a Helium nucleus.

RSB [31]2 years ago
4 0

Answer: a nucleus of Deuterium (2H)

Explanation: pls give me brainliest.

You might be interested in
In tropical climates, why is there heavy vegetation but poor soil?
Georgia [21]
Answer - B

Reason - Since the area is in the tropics there will be time to time heavy precipitation, which over time the decomposed nutrients will get washed down into a run off and depleted.
5 0
3 years ago
Discuss why biologists might have a difficult time classifying this organism
Scrat [10]

Answer:

Explanation:Explanation: Classification of organisms is a hard task cause many organisms have their differences and similarities, whereby making it very complicated in classifying organisms.. All living organisms are classified into groups based on very basic, shared characteristics

8 0
3 years ago
Clout gang I neeeed helpppppppppp
Leona [35]
<span>
What do you think that a very wide space between two contour lines means?


</span><span> B.MOUNTAIN TOP</span>
7 0
3 years ago
The intermediate filaments of a neuron are also called __________
grigory [225]

answer: Neuro filaments

explanation:

Neurofilaments (NF) are intermediate filaments found in the cytoplasm of neurons. Together with microtubules and microfilaments, they form the neuronalcytoskeleton. They are believed to function primarily to provide structural support for axons and to regulate axon diameter, which influences nerve conduction velocity.

5 0
3 years ago
Why is a person with type AB blood able to receive a blood transfusion from a donor with any of the major blood types (A, B, AB,
Alisiya [41]

Answer:

ABO blood grouping system is based on presence or absence of three types of antigen on red blood cells. A and B blood group have A and B antigens respectively. AB blood group has both A and B antigens. O blood group does not have any antigen.

A body with particular blood type will consider other blood group foreign ( because it has different antigen ) and produce antibodies against it. A person with blood type A can not be given B type blood because the antibodies in his body will destroy RBCs with B antigen which may even prove fatal.

AB blood type person can receive blood from both A and B blood groups because he has antigens for both of them so it will produce antibodies for neither of them. He can also receive O type blood because O blood does not have any antigen so it can be given to any person without incompatibility reaction.  

However, AB individual can only donate blood to AB individual because his blood cells have both A and B antigens. So, he can only donate blood to an individual who does not produce antibodies for both A and B blood groups and that would only be another AB blood type individual.

3 0
3 years ago
Other questions:
  • Refer to Animation: Fluid Mosaic Model. Although the phospholipid molecules can be in constant lateral movement, they very rarel
    8·1 answer
  • Suppose you wanted to determine whether you had adequately sampled the species richness of a given amphibian community. Which re
    13·1 answer
  • Help pls!!!!!.........
    6·1 answer
  • Which of the following is true about protein molecules? A. Protein molecules are made up of strands of DNA joined together by am
    14·1 answer
  • Jaleel and Lisa are simplifying the expression 2 (x minus 2) + 2 as shown. Jaleel's Method 2 (x minus 2) + 2 = 2 x minus 4 + 2 =
    15·1 answer
  • Functions of the roots include,___
    10·2 answers
  • Energy is released during chemical reactions that occur in
    11·1 answer
  • According to the article, which best describes Nikki’s life before she experienced cyberbullying? She was somewhat socially awkw
    13·2 answers
  • What is the probability for an average star to supernova?​
    12·1 answer
  • Why do you think the ecological footprint of bangladesh is so small why is it so large for people in the united states?
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!