Answer: 1000 nm
Explanation:
Bacteria are the type of biological cell. They constitute a large domain as they are found every where on the earth.
These are few micrometer in length which means 200-700nm . It depends on the type of the bacterial cell. The bacteria are the first organism that appeared on earth.
They are found in water, on land, desert, hydro thermal vent, snow et cetera. These are variable in shape.
Answer: Positive feedback loop
Explanation:
Even before the food reaches the stomach (before ingesting it), the glands of the stomach mucosa begin to release its gastric secretion. The main characteristic of this secretion is acidity, as measured by pH (one of the physiological variables).
This acidity is a result of the presence of hydrochloric acid, which is part of the secretion composition. In addition to it, water, pepsinogen (which will give rise to the enzyme pepsin) and the intrinsic factor. The acid has a function of the protection of the entire system by eliminating microorganisms. It is also responsible for the activation of pepsin (which only occurs with acid pH), the enzyme that digests proteins containing the amino acids leucine or phenylalanine or tryptophan or tyrosine.
The concept of Positive feedback loop states that the body tries to increase the value of a variable (acidity, in the case of pepsinogen) when it is below its optimal value (called a point adjustment) and decreases this value when it is above optimal.
Answer:
d) peduncular hallucinosis
Explanation:
One of the most striking symptoms of perpendicular hallucinosis is the existence of very vivid, colorful, and recurrent visual hallucinations. These hallucinations occur due to lesions of the brainstem and thalamus, which can influence a disinhibition of the lateral geniculate nucleus. The hallucinations provoked can be very debilitating for the person suffering from this illness and can completely disassociate him from reality.
Answer:
Cork is a natural cellular material of biological origin with an interesting and unique combination of properties. It has low density, buoyancy, very low permeability, low thermal coefficients, elasticity, and withstands large deformation without fracture under compression.
Explanation:
The cell needs to replicate its DNA before mitosis occurs because DNA replication ensures that each daughter cell will have the genetic information it will need to carry out its activities. The process is extremely important to make sure that each daughter cell receives a complete set of genetic information!
