Though they are constantly changing, ecosystem are naturally BALANCED.
An ecosystem is said to be balanced, when the components of the ecosystem are in harmony. Two of the principal processes that usually throw ecosystems out of balance is pollution and hunting.
The purpose of crime scene photography is to provide a true and accurate record of the crime scene and physical evidence present by recording the original scene and related areas.
<span>The
most important estrogen is estradiol and the most important androgen is
testosterone.</span>
Testosterone
is the primary steroid male sex hormone. Its function is to control the development
of male reproductive tissues, to promote secondary sexual characteristics to
maintain health (the prevention of osteoporosis for example). It is synthesized
from cholesterol and it achieves its effects by binding to androgen receptors
on different tissues.
Answer is : b
Bilateral symmetry
