Answer:
Question 13 - c. exons
Question 14 - c. introns
Explanation:
Its me again the person that made the question. I know the answer. I did it and got a 77.7%
I didn't get a good score. But I moved on to Mandatory 2 Step.
The answer I put on all my questions are the answers I used to get a 77.7%
The correct answer is option C, that is, behavioral isolation.
The phenomenon of behavioral isolation takes place when two populations possess the tendency of interbreeding, but exhibit distinctions in courtship rituals or other kinds of behavior. For example, the western and eastern meadowlarks are very identical birds whose habitat overlap in the middle of the United States.
However, the members of the two species will not mate with each other, possibly as they use different songs in order to fascinate males. The eastern meadowlarks will not respond to the songs of western meadowlarks, and vice versa.
A force of 8 N will be required.
<h3><u>Explanation:</u></h3>
Mechanical advantage is defined as the ratio of output force from a system to the input force into the system. A machine which has the mechanical advantage more than 1 means it requires less force to give more force as output. Similarly, when the mechanical advantage for the machine is less than 1,it means more force is required to give to achieve a less one.
Here in the question, the mechanical advantage of the pulley is 2.
Output force required to pull the sack of potatoes upto kitchen is 16N.
Mechanical advantage = Output force / input force.
Or, 2= 16 / input force.
So input force = 
So a force of 8 N will be required to pull the pulley.
<span>Cell structures that plant and animal cells don't share are _____. a cell wall peroxisomes a large central vacuole lysosomes vesicles chloroplasts ribosomes golgi complex cytoskeleton.</span>
