Answer: option A is the correct answer
Explanation:
Answer:
The Universe is the endless void of space that contains galaxies,black holes,asteroids,stars,planets and other astronomical bodies.
Explanation:
Because it's facts...
The molecule which is a complimentary copy of a section of DNA used for protein synthesis is called mRNA.
Is a branch of science concerned with the description, prediction, and understanding of natural phenomena, based on observational and empirical evidence.
Answer:
<h2>1. unconditioned stimulus, </h2><h2>2. loud noise</h2>
Explanation:
Such type of stimulus that is trigger by the neutral in nature is called a conditioned stimulus such as the sound of the bell and some other. Such type of stimulus that is biologically potent is called an unconditional stimulus such as the taste of food and some other things. When the biologically effective stimulus is used with neutral stimulus then the classical conditions are formed that are used in the learning process.