Kinetics is the study of the speed of a chemical reaction some chemical reactions are fast others are slow sometimes chemists want to speed the slow ones up and slow the fast ones down
Answer: Option A "Choroid plexus".
Explanation:
Cerebrospinal fluid can be defined as the fluid that is found in the brain and spinal cord of human beings. It is a clear and colorless fluid.
The production of cerebrospinal fluid takes place by the specialized ependymal cells that lies in the choroid plexuses which is present in the ventricles of brain.
The amount of cerebrospinal fluid in a day is 500mL. This fluid acts as cushion that protects the brain from mechanical and immunological protection.
Hence, the correction answer is option A
It’s the second one I believe:)
Answer:
The options are missing in the question, the options are;
a. an archaean
b. a Paramecium
c. a yeast (fungus) cell
d. a grasshopper cell
The correct answer is A (an archaean)
Explanation:
Archaea and Bacteria are domains where prokaryotes are commonly found. Archaea and Bacteria as prokaryotes are unicellular organisms that lacks membrane-bound organnelles and a well defined nucleus, in the sense that unlike eukaryotic cells, a nucleus does not house their genetic material (DNA), instead their single circular chromosome is nakedly localized in a region called the NUCLEOID.
In addition, prokaryotic cells lacks many organnelles found in eukaryotic cells e.g mitochondria, Endoplasmic reticulum, lysosome etc. The few ones like ribosomes found in their cytoplasm are not enclosed by lipid bilayers called membranes.
The answer is A. Discharge.
