2. Dinosaurs appeared before mammals (a)
Answer:
The answer is "Option c".
Explanation:
In this question, the above choice is right, because the exponentially growing plot of even an individual is increasing steadily (to time mostly on the x-axis as well as the number of organisms mostly on the y-axis).
Answer:6 km/h
Explanation:
Given
Velocity of Sailboat is 
Velocity of ocean current is 
negative sign indicated it is opposite of Sailboat
Therefore, velocity of sailboat w.r.t ocean current is
Nucleus
Function : DNA Storage
It’s is the room where blue prints are kept
Mitochondrion
Function : Energy production
It’s is the power house
Rough Endoplasmic Reticulum (RER) function :Protein production; in particular for export out of the cell
It’s Primary production line - makes the toys
Lysosome
Function : protein destruction
It’s Recycling and security
