Electricity could be discovered using batteries based on zinc or lead, but without copper wiring it would remain little more than a scientific curiosity. Electric motors and generators require large amount of wiring, so they are impossible to build on large scale in this world
B because a new species adds more diversity to your ecosystem
<span>Protein is made up of building blocks called amino acids</span>
<h3><u>Answer;</u></h3>
d. before the Neogene era.
<h3><u>Explanation;</u></h3>
- <em><u>The Silurian Period was a third period of the Paleozoic Era that occurred from 443 million to 416 million years ago. This period occurred after the Ordovician Period and was then followed by the Devonian Period.</u></em>
- Silurian period is the period that many biologically significant events took place. There was a widespread radiations of crinoids, continued priliferation and expansion of the brachiopods and also the oldest known fossils of coral reefs.
Answer:subarachnoid space.
Explanation:Explanation: the cerebrospinal fluid is produced by the ventricles of the brain.it is the circulating fluids that surrounded the brain and the spinal cord.
These fluid supplies the brain and spinal cord with nutrients,removes wastes and protects spinal from trauma.
The lumps puncture is usually done to :
To determine any infection in theCNS (infalamtion of the brain amd spinal cord(meningitis).
To determine if there is bleeding in the CNS.
To Diagnose brain tumor or viral infection.
