Explanation:
The experimenter alters the independent variable with the hopes of collecting data about how the dependent variable changes in response.Other variables have to be controlled so that any changes of the dependent variable are attributed to the known independent variable.
Once the lymph<span> is pulled into the </span>lymph<span> vessels it </span>flows<span> through the nodes and </span>lymph<span> organs, where the </span>lymph<span> is filtered and enhanced. </span>
"The result of fertilization is a cell (zygote) capable of undergoing cell division to form a new individual. The fusion of two gametes initiates several reactions in the egg. ... The most important result of fertilization is egg activation, which allows the egg to undergo cell division."
Over utilisation of resources is the unlimited and careless use of any resource or utility. It refers to the excessive use of something to a point that in return we are deteriorating the resource. It can also be termed as exploitation or sustainable use. In the 21st century, we must focus on sustainable development and not over-utilisation of resources.
