Answer:
A: Cumulative recorder
Explanation:
B. F. Skinner was a psychologist, author, behaviorist and inventor of Operant conditioning chamber and Cumulative recorder. The purpose of cumulative recorder was to study the rate of operant conditioning. It is a process in which behavior of an organism is modified or an organism is conditioned to perform a specific behavior through giving punishment or reward.
For example: We teach a kid that he should not touch a hot stove because it will burn his hands, or we give him a box of candies to perform a specific task or behave in a certain way. Skinner used Cumulative recorder to find the effect of certain factors on behavior or response of an organism For example: the rate at which lever was pressed by a monkey to get bananas etc.
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<u>The eukaryotic cell differs from the prokaryotic cell in the following ways:</u>
- The eukaryotic cells have a <em>membrane-bound nucleus</em>, whereas the prokaryotic cell has a <em>non-membrane bound nucleoid</em>.
- According to the size, the eukaryotic cell is <em>large</em> when compared to the prokaryotic cell.
- The eukaryotic cell undergoes cell division through a process called <em>mitosis or meiosis</em>, whereas the prokaryotic cell divides through <em>fission or budding.</em>
- Membrane-bound <em>cell organelles</em> are present in eukaryotic cells whereas absent in a prokaryotic cell.
- The process of <em>gene expression</em> occurs in two different cell organelles (nucleus and cytoplasm) in the case of eukaryotic cells, whereas in the prokaryotic cell it occurs in the cytoplasm.
What grows inside of a flower?
Many things. does the image point to something specific? if not just put nectar.
