The only one with two different alleles is d meaning it is heterozygous
D
Answer: it is chemical .
Explanation: because chemical change that results in the formation of new chemical substances. During the sun tanning, both vitamin D and melanin are produced. your welcome <3 .
The answer is A
Theory- a hypothesis or an educated guess that has yet to be proven by experiment<span />
Answer:
The magnifying power of this telescope is (-60).
Explanation:
Given that,
The focal length of the objective lens of an astronomical telescope, 
The focal length of the eyepiece lens of an astronomical telescope, 
To find,
The magnifying power of this telescope.
Solution,
The ratio of focal length of the objective lens to the focal length of the eyepiece lens is called magnifying of the lens. It is given by :


m = -60
So, the magnifying power of this telescope is 60. Therefore, this is the required solution.
The answer I had got was C x