It's controlled by the Hypothalamus.
The hypothalamus synthesizes and secretes certain hormones called releasing hormones which stimulate the secretion of pituitary hormones.
The hypothalamus gland uses the nervous system and secretes hormones which sends messages to the pituitary hormones.
A.
Sound absorption depends more on the thickness of a material than its color.
Answer:
Option (1), (3) and (5).
Explanation:
Positive feedback mechanism also exist in the environment that increases the causative effect of the environment. The environment can change the temperature, precipitation and other climatic conditions of the area.
The lack of moisture in Sahara desert and deforestation can cause the trees extinction. The temperature can be increased by the green house gases as the warm atmosphere causes evaporation. The snow gets melted due to increase in temperature and the ground becomes more darker.
Thus, the correct answer is option (1), (3) and (5).
Gene flow is the phenomenon of transfer of gene from one species/population to others. According to Natural Selection, more suitable (which fits best with the environment) gene/allele make the characteristic of that individual. So, it increases the ability to survive and reproduction
Hope this helps!
