Biology Quiz 4

Goats tend to be less susceptible to heat stress than animals like cows, donkeys, and buffalos. They can tolerate more summer heat. A healthy adult goat can survive in temperatures ranging from below -18°Celcius and above 38°Celcius.

Thyroid gland is the largest endocrine gland of our body. It is located in the front of the neck, wrapped around the windpipe (trachea). It plays a major role in the metabolism, growth and development of the human body.

Allantois of Embryo helps in excretion. The allantois is a hollow sac-like structure filled with clear fluid that forms part of a developing amniote's conceptus (which consists of all embryonic and extra-embryonic tissues). It helps the embryo exchange gases and handles liquid waste.

BCG (Bacille Calmette-Guerin) vaccination is to be given to a newborn child within six months. This vaccination provides consistent protection against tuberculosis (TB) disease. It is recommended for all babies soon after birth up to 1 year old (for some specific areas).

Pheromones are chemicals released by one species of animals in order to attract the other members of the same species. They are capable of acting like hormones outside the body of the secreting individual, to affect the behavior of the receiving individuals.

The giraffe is a quiet animal that seems to have very little to say. Therefore, many assume that the giraffe is dumb.

Brailing is the process of preventing the birds from flying. It is nothing but a piece of tiny ropes of clothes used to cover the bird's wing. So that the bird lost its balance to flight.

Sweat glands in mammals are primarily concerned with thermoregulation. Its main function is to control body temperature. As the water in the sweat evaporates, the surface of the skin cools.

Glaucoma is a disease of the eyes. It is a group of eye conditions that damage the optic nerve, the health of which is vital for good vision. This damage is often caused by abnormally high pressure in the eye.

Dengue viruses (DENV) are the causative organism of dengue fever. They are transmitted to humans through the bite of an infected Aedes species mosquito.