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TiliK225 [7]
2 years ago
11

Sodium (Na) ____ atomic # 11 atomic mass: 23

Biology
1 answer:
SVETLANKA909090 [29]2 years ago
7 0

Find # of electrons and draw them onto the Bohr model.

Assuming the atom has a neutral charge, the number of electrons equals the number of protons.  The number of protons is given by the atomic number, 11, so there are eleven electrons.

From the inner "ring" to the outer "ring":

1.  The first "ring", closest to the center of the atom, can take two electrons.

2.  The second "ring", level 2, can take the next six electrons.

3.  The rest of the electrons (three) can fit on the outermost ring.

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The site of intercellular communication between a neuron and another cell is the synapse. -interneurons are the most numerous ty
Paha777 [63]

The question is stated incorrectly. The correct question is as follows;

The site of intercellular communication between a neuron and another cell is the.

Answer:

Synapse.

Explanation:

Neurons have dendrites, cell body and axons. Millions of neurons are present in the nervous system. Different types of neuron are sensory neuron, motor neuron and interneuron.

Synapse may be defined as the gap between the two consecutive neurons. The junction between the two neurons that helps in the intercellular communication. The neurotransmitters are diffused directly and transmit information through these synapse.

Thus, the correct answer is synapse.

8 0
2 years ago
according to darwin’s theory of natural selection, individuals who survive are the ones best adapted for their environment. thei
Zigmanuir [339]

Answer:

Those individuals survive which are the best ones and are adapted to their environment. Their survival is due to the possession Of adaptations.

Explanation:

Those organisms which are survive in the harsh environment, it is mainly due to some adaptations which helps them to survive in an environmental condition which are not suitable for them and those organisms are removed from the environment which have no adaptations capabilities.

7 0
3 years ago
Your, mouth, esophagus, stomach, and intestines help to form which of the following? A: cell be: tissue C: organ or D: organ sys
Furkat [3]
They help form D organ system which is the
digestive system 
8 0
2 years ago
Read 2 more answers
Which factor below would be least likely to cause a mutation in the cells of an organism.
USPshnik [31]
A) A sound wave

The other 3 create mutations, are cells are hit by sound waves all the time and experience no mutations because of it



3 0
3 years ago
Explain how the fossil record indicates a long history of changing life forms.
sergey [27]
<h2><u>Answer:</u></h2>

Fossil: is preserved pre historic life form present under ground at high pressure for a long time.Animal die and burried under layers of sediments.

It provides evidence about the history of life on earth. It also shows  different groups of organisms, including species,that have changed over time. Because the formation of any fossil depends upon the precise combination of conditions.

As the world changes, plants and animals change with time . From fossils we compare organisms of modern time with ancient , the species we see today are very different from species that lived in the past. Thus, the fossil record can be used to show that organisms changed to meet new condition.


4 0
3 years ago
Read 2 more answers
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