Answer:
The suprachiasmatic nuclei enable the nervous system to respond to daily light/dark alterations through their stimulation of melatonin.
Explanation:
Melatonin is a hormone produced naturally by the body. Its function is to regulate the body's circadian cycle. This hormone is stimulated and begins to act by changing between a light environment and a dark environment. This stimulation interacts with the suprachiasmatic nuclei making the nervous system understand this change and luminosity of the environment and respond to the action of melatonin.
Answer:
The given statement is true.
The word homogenous means "of same kind". For example, homogeneous mixture is the mixture which has identical composition throughout the mixture.
In ecology, species homogeneity refers to the lack of biodiversity. Homogenous species or populations are those which have similar characters or traits such as hair color, eye color, fur coat, eating habits et cetera.
Answer:
The correct option is A. Algae
Explanation:
Algae is the best possible answer because the process of photosynthesis can be carried out only by plants, algae and cyanobacteria. Hence, option A is correct. These organisms are called autotrophs as they are capable of making their own food.
Other organisms like paramecium, arthropods and fungi are not capable of photosynthesis. These organisms like arthropods are called heterotrophs. They do not make their own food and feed on other organisms for food.
