For giving you understanding ; we need Free O2 but Oxygen is also available in H20 right why dont we use it !!
As the early atmosphere was reducing as there was no free oxygen but it was later produced by chemoautotrophic bacteria !! Living thing release O2 in atmosphere thus making it oxidising in nature and then life evolves !!
Answer:
A) Food enters the mouth
B) Esophagus
C) Stomach
D)Cecum
E) Feces is expelled
Explanation:
The food is ingested through the mouth and and then it is transported through the esophagus to the stomach from where it reaches the small and large intestine and then it is finally expelled as undigested or waste foo product.
Based on the above brief explanation, the flow chart depicting food movement are as follows -
a) Food enters the mouth
b) Esophagus - known as the food pipe
c) Stomach
d)Cecum - it is a small pouch connected to small and large intestine.
e) Feces is expelled through rectum
Answer:
Because asthma is aninheirited trait most of the time. It makes it hard to breath when active and need air. It brings mucus in the lungs and cloggs most of the lungs. Making it hard to breath.
Explanation:
Organisms such as producers who make their own food.
How to remember: "auto" means they make it automatically by their own.
You need organisms like some are in plants and without Plants how will the animals eat
