<span>Increased activity of merocrine sweat glands
Merocrine refers to the exocrine glands (or cells) whose secretions are excreted outside of the cell from the secretory cells, then into an epithelial-walled duct(s), and finally onto the surface of the body. Merocrine secretions from the sweat glands are specifically called eccrine.
Sweat glands are structures of the skin that produce sweat in order to cool the body upon evaporation of the sweat. As a person grows older, his sweat glands become less active. This could impair perspiration or sweating, and increases the risks of overheating in the elderly. </span>
The answer is b. hypothalamus.
Hypothalamus is a ventral part of diencephalon. It has many functions including control of hunger, thirst, body temperature, sleep, parenting behaviors, and circadian rhythms.
When an <span>animal </span>is not hungry, and it needs for food are satisfied, is called satiety. There is satiety center responsible for hunger. The center is located in hypothalamus.
Answer:
The three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart.
Explanation:
In Anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
I. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
II. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
All amphibians and reptiles except for crocodiles (having four-chambered heart) have three-chambered hearts, which typically comprises of a partially divided ventricle and two atria.
Hence, the correct statement about the three-chambered hearts of amphibians and nonbird reptiles is that, the three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart due to the partially divided ventricle.
If the comet were to strike the planet, the impact energy would be about 300 times that of the asteroid collision that was thought to have caused the Cretaceous-Tertiary extinction that killed the dinosaurs about 65 million years ago.
The mitotic phase. It includes both mitosis and cytokinesis
