<span>Many of the plant catalog pages or botanist's sketches of plants can be viewed at museums because of their beautiful detail and exact color variation. Botanists are able to draw such detailed-images because of their intricate knowledge on the structure of plants.</span>
The organs are known as Vestigial organs. The evolution from land-dwelling animal to the marine animals has led whales as well as dolphins, to lose hind limbs. The pelvic and leg bone serves no purpose in them and just provide the anchorage to muscles
Sympathetic nervous system is activated in this situation.
This branch of nervous system is activated when any individual encounters stressful or dangerous situation.This is responsible for 'fight or flight' response.
It takes place by activating adrenal gland which releases specific hormones adrenaline and nor adrenaline also called as catecholamines . These hormones are responsible for the appropriate physiological response to the situation.
Fracking sites release a toxic stew of air pollution that includes chemicals that can cause deserve headaches, asthma symptoms, childhood leukemia, cardiac problems, and birth defects(it can also cause cancer). Fracking increases economic activity, employment, income and housing prices.
