shark

labeo rohita

locomotion

body balance

it is basically an organ system group of organs form 
together to form an organ ystem

so we could get two know more about them an see hot we are 
so call animal.

to know what they eat what they do

Studying the animal behaviour and habitat, leaves the
knowledge of how they affect the food chain and ultimately
the total environment

Animals are the living creature on the  Earth which also 
include Humans. So,their study will elaborate the 
significance behind their existence on the  earth.One can 
get the answer of an important question "What the nature 
satends for...?"

Cause u could learn about them and their habitat.
and is also a fun way to stay close to the wild animals.
i dont know it just seems fun, and a great experience.
i'm barely 16 years old but i know i want to be a 
zoologistm its just that i'm having a little trouble 
gettign there.
so if anyone knows and wants to help me my email is 
sbracho@aol.com if u wanna help me to be a zoologists.
by the way my name is sophia.

IT`S ESSENTIAL FOR TO KNOW ABOUT THE ANIMALS. WHY MEANS THE 
ANIMALS ALSO HAVING ( NERVOUS SYSTEM TO EXCRETORY SYSTEM)
SAME LIKE OUR HUMAN. SO TO KNOW ABOUT THEIR PHYSIOLOGICAL 
FUNCTION AND CHARACTERISTICS  WE HAVE TO STUDY THE ANIMALS.

 THIS WILL USEFUL FOR OUR ANY OUR PURPOSE MAINLY IN MEDICAL.

insulin

It is parathormone which raises blood Ca levels by
stimulating bones to release ca.
Calcitoning has an antoganistic effect....reduces blood Ca
levels.

Answer #2 (parathormone) is correct.  Answer #1 is 
incorrect; insulin is involved in glucose metabolism.

multiple sclerosis is a autoimmune  disease. it`s caused by 
theattack of the  body`s immune system.