D.sensory neurons sense the presence of food and relay the information to the brain so that food can be moved and digested ib the digestive tract
A cartoon strip is a grouping of some drawings which is trying to put forward a message or a story in a humorous way.
<u>Explanation:</u>
A cartoon strip is a grouping of drawings masterminded in interrelated boards to show brief silliness or structure a story, frequently serialized, with content in inflatables and subtitles.
A cartoon strip, arrangement of nearby drawn pictures, typically orchestrated on a level plane, that are intended to be perused as an account or a sequential succession. The story is normally unique right now. Words might be presented inside or approach each picture, or they might be shed out and out.
Answer:
Option D, Zinc is higher on the activity series because there is clear evidence of a reaction.
Explanation:
It is very clear that a metal which is higher in activity will replace a metal having lower activity.
Since, Zinc has higher activity than copper, it is very sure that it in a copper chloride solution it will replace copper and produce zinc chloride solution leaving behind copper as residue.
Residues of copper is a clear evidence of reaction
The chemical equation for this reaction would be -
Hence, option D is correct
The microscopic observations of cells form the basis of the cell theory and the idea that all living things are composed of cells; cells are the structural and functional unit of living things.
Answer:
Explanation:
Although protons resemble other positive ions such as Na+ and K+ in their movement across membranes, in some respects they are unique. Hydrogen atoms are by far the most abundant type of atom in living organisms; they are plentiful not only in all carbon-containing biological molecules, but also in the water molecules that surround them. The protons in water are highly mobile, flickering through the hydrogen-bonded network of water molecules by rapidly dissociating from one water molecule to associate with its neighbor, Protons are thought to move across a protein pump embedded in a lipid bilayer in a similar way: they transfer from one amino acid side chain to another, following a special channel through the protein.
