Answer:variable interval
Explanation:
In operant conditioning, a variable-interval schedule is defined as that schedule in which a response is received after unpredicted time , because reinforcement has been administered in diffrent non fixed times. The response is slow and steady. Variable means non fixed time which means reinforcement can occur at any time , using various different time zone. Interval refers to time hence this means reinforcement is administered at various times.
Answer:
1. True
Proteins are frequently called the building blocks of life because they are found everywhere: in our cells, bones, muscles, blood, hormones, enzymes and more. It is thanks to proteins that our body has any sort of structure to it.
2.False
Tissues are groups of similar cells that have a common function. An organ is a structure that is composed of at least two or more tissue types and performs a specific set of functions for the body. Many organs working together to accomplish a common purpose is called an organ system.
3. False
Prokaryotes are unicellular organisms that lack organelles or other internal membrane-bound structures. Therefore, they do not have a nucleus, but, instead, generally have a single chromosome: a piece of circular, double-stranded DNA located in an area of the cell called the nucleoid.
4. False
False, blood cells don't have a rigid cell wall. Plants and Bacteria have rigid cell walls, but not blood cells!
Answer:
correct answer is option a and d
Answer:
Check explanation.
Explanation:
A border is a line showing the boundaries between states or countries. So, a border state can be likened to a state that marks the territory of one country. Border States are those states that do not that did not want to join Confederacy, they are also known for their involvement in slave trading. Some of the border states are Maryland, Delaware, West Virginia and so on.
The importance of the location of Maryland border and that of Delaware is that they both contributed to the success of the Union because of their loyalty towards the Union during the war. Also, these border states have good lands for the production of crops, they have fertile land for farming which also contributed immensely during the war.
<span>With the enactment in 1903 of the Terrell Election Law, which was amended in 1905-1906, a statewide direct-primary system for all state, district, and county elective offices was established and made mandatory for all parties that had received as many as 100,000 votes in the previous election; the requirement was later ...</span><span>Jun 12, 2010</span>
