Answer: A) Two atoms share electrons so they can fill their outer shells
Explanation: A covalent bond is a type of bond formed by sharing equal number of electrons between two non-metal atoms so that both of them can attain a stable octet or duplet structure of noble gases.
In covalent bonding, there is no loss or gain of electrons between atoms. For example, the formation of chlorine molecule, chlorine atom has seven electrons in its outermost shell, remaining one electron to attain an octet structure of noble gases. Two chlorine atoms share one pair of electron, each chlorine atom donating one electron to form a pair so that each atom in the chlorine molecule attains an octet structure..
I'm pretty sure italy, england, spain, portugal, ireland.
The root cap is a small structure but one that serves a very important function for a plant. Protecting the root apical meristem allows for primary growth in the root, which paves the way for lengthening of the plant as well as cell specialization.
Answer:
The value of the expression is as follows:
a = 10; B = 2.5; c = 7
Explanation:
a = 4B = 3 + c = 10
Step 1
split equation into parts, then we have
3 + c = 10
c = 10 - 3
c = 7 (the value of c is 7)
Step 2
Rewrite equation as a = 4B = 10, then split again
4B = 10
Then, B = 10➗ 4
B = 2.5 ( the value of B is 2.5)
Step 3
Take the last part of the equation
a = 10 (the value of a is 10)
Note the "equal sign =" put whatever is on the left hand side to be equal to the right hand side
Answer:
C) esophagus - moves air from the nose into the lungs
Explanation:
The oesophagus is a muscular tube with a sphincter valve at each end. Its main function is to transport food and fluid, after being swallowed, from the mouth to the stomach.This is propelled from the pharynx into the oesophagus, and towards the stomach in a peristaltic waves. The peristalsis also pushes food along the alimentary canal
