Answer:
Pavlov was studying salivation in dogs as part of a research program on digestion.
Explanation:
Ivan Pavlov discovered the concept of conditioning of reflex actions in dog when he was conducting a study on salvation in dogs.
He noticed that the dog (he was experimenting) start salivating as it hears the footstep of assistant that brings food. This made Pavlov to discover conditional stimulus.
Here the conditional stimulus was the sound of foot steps of assistant (as this was associated with the food) and the conditional response was salvation.
In normal cases, food is an unconditioned stimulus that produces unconditional response i.e salvation in dogs.
Hence, the correct statement is
"Pavlov was studying salivation in dogs as part of a research program on digestion."
Answer:
only 30 amino acids will be correct in the protein
Explanation:
A frameshift mutation will affect the amino acid that is mutated plus all the other amino acids after the mutation. This is because in a frameshift mutation a base pair or base pairs are either inserted or deleted. The whole sequence will shift causing the codon sequences to be coded for the wrong protein.
Answer:
It prevents population from growing too large.
Explanation:
The answer is clathrin-coated vesicles
Answer:
The tissue that always has an apical and a basal surface is epithelial tissues.
Explanation:
Epithelial tissues: It is a thin tissue which is covering all the exposed part of the body. They are helping in the formation of inner lining of the mouth, secretory glands, digestive tract, hollow parts of the organs such as heart, eyes, ear, lungs, etc.
Cells which making up epithelia closely bound to another through a specialized structure is known as tight junction. They are free from the nervous and blood vessels and are supported by the connective tissue is known as basement membrane. They have polarity with a basal domain which is facing the basement membrane and the apical surface facing the lumen present on the organ or the external environment.