Zoology Quiz Part 17

___________ is any of a group of steroid hormones containing 18 carbon atoms produced chiefly by the ovary and placenta but also by the testis and adrenal gland of all vertebrates.





Painless killing of a person or animal suffering from an incur- able disease is





The iron-containing, red, respiratory pigment of vertebrates and a few invertebrates that transports oxygen is





_________ is the organ which produces gametes in animals and in some produces hormones too.





___________ is the term is used to describe a disease which spreads quickly to affect a large proportion of the population.





The period during which an embryo develops in the uterus of a mammal, from the time of conception to birth is called





The scientific study of heredity, that is, the passing on of characteristics from parents to their offspring is





___________ is any of a group of steroid hormones containing 18 carbon atoms produced chiefly by the ovary and placenta but also by the testis and adrenal gland of all vertebrates.





_________ is a small pouch-like organ that stores bile secreted from liver and in humans it is a pear- shaped sac that rests on the underside of the right portion of the liver.





The science dealing with the various races of mankind, their distribution relationship, culture and activities is





_________ is an organ which secretes specific chemical compounds such as enzymes or hormones.





Science dealing with the selective genetic improvement of the human race is





Drugs which promote or increase the elimination of secretions from the respiratory tract by coughing are





A mammalian embryo on it’s inter stages when the main features are clearly recognizable is called a. Incorrect b. Correct c. Incorrect d. Incorrect





An enlargement of all or part of the thyroid gland, which appears as a smooth swelling at the front of the neck is






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