The activation of the suprachiasmatic nucleus is stimulated by the presence of the light waves. This activation leads to the release of the hormone serotonin. Serotonin promotes the wake cycle of the person along with his internal clock. However, when the light is absent, then the pineal gland, which is present at the top of the middle of the brain, secretes the hormone melatonin. The melatonin regulates the sleep cycle of the person.
Hence, the blanks can be filled with 'serotonin and melatonin' respectively.
<h2>Plasma Osmolarity </h2>
Explanation:
- Osmolarity is the quantity of milliosmoles/liter (mOsm/L) of arrangement. It is the centralization of an osmotic arrangement. This is the normal bedside estimation utilized in clinical settings for osmotic action. Model: Plasma and other body liquid osmolarity: 270 – 300 mOsm/L.
- Plasma osmolality is an approach to gauge the electrolyte parity of the body. Osmolality (estimated by an osmometer in a clinical research center) is actually not the same as osmolarity, which can be determined dependent on the deliberate sodium, urea, and glucose centralization of the plasma. Osmolality is a proportion of osmoles of solutes per kilogram of an answer where osmolarity is a proportion of osmoles per liter of dissolvable.
They are buried in the core of the structure.
False.
It can either be called Dependent or Independent variable.
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Answer:
The correct answer is C. Mammals can produce milk for their offspring.
Mammals are the members of class mammalia. The word mammalia was derived from Latin word "mamma" which means "breasts" as they had a unique feature i.e. presence of mammary glands.
These glands were evolved from a special types of sweat glands and became specialized in the production of milk, especially in females.
They help the mothers in providing nourishment to the offspring.
Other features of mammals may include four chambered heart, hair and fur, three middle ear bones, etc.
Explanation: