Man can contact tapeworm through
ingesting uncooked meat
from fish
from breathing
through contact
Correct answer is A
A cysticercus can survive for several years in the animal. Humans become infected by ingesting raw or undercooked infected meat.
What is the function of trichocyst in paramecium?
Movement
Defence
Excretion
Respiration
Correct answer is B
Trichocyst, a structure in the cortex of certain ciliate and flagellate protozoans, consists of a cavity and long, thin threads that can be ejected in response to certain stimuli. Trichocysts may be widely distributed over an organism or restricted to certain areas (e.g., tentacles, papillae, around the mouth).
The energy released by 1 gram of glucose is
6 kcal
4 kcal
5 kcal
3 kcal
Correct answer is B
Protein and carbohydrates both contain 4 calories per gram, while fat provides 9 calories per gram.
Which of the following animals is cold blooded?
Cat
Lizard
Whale
Bird
Correct answer is B
Reptiles are cold-blooded animals. This means that they cannot produce heat in their own bodies, and have to rely on their surroundings to keep warm. This is why most reptiles are found in hot or warm climates. Reptiles like snakes and lizards are this type of animal. Amphibians like frogs, toads, and salamanders are, too. Fish are also cold-blooded animals.
The role of the scolex in tapeworms is to
excretion
attachment
movement
breathing
Correct answer is B
An adult tapeworm consists of a knoblike head, or scolex, equipped with hooks for attaching to the intestinal wall of the host (which may be a human), a neck region, and a series of flat, rectangular body segments, or proglottids, generated by the neck.