The correct answer would be 4 I believe
Answer:
What contains genes that are the instructions for making proteins
Explanation:
The DNA code contains instructions needed to make the proteins and molecules essential for our growth, development and health. DNA? provides instructions for making proteins
Answer:
Option A
Explanation:
Thyroid is primarily caused by lack of iodine but there are other reasons as well that lead to increased size of the thyroid gland. Some of these reason is
a) over- or underproduction of thyroid hormones
b) Nodules in the glans
Some times, due to overstimulation immune system itself attack the thyroid gland thereby producing excess thyroxine and hence causing the thyroid to swell
Thus, Option A is correct
Answer: Ice cores.
Explanation: Ice cores are commonly studied by scientists to find out what the climate was like decades and centuries ago.