Answer:
a fertilized egg- zygote
separation of two ends of an old cell- cytokinesis
union of egg and sperm- fertilization
egg-producing organ in lower plants- archegonium
Answer:
It shows that biodervasity is important for sustainable ecosystem for existence of the earth.
.Biodervasity ensures that each specie has a role to play in an ecosystem irrespective of the size.)
The story also shows that plant species have different medicinal purposes,and without plants human will not be able to get the needed medicines.
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Explanation:
Pepsinogen, a digestive enzyme ,is secreted by the chief cells in the gastric mucosa.
The answer is glucose and and 02 .
Answer:
The benefits provided by forest ecosystems include: goods such as timber, food, fuel and bioproducts. ecological functions such as carbon storage, nutrient cycling, water and air purification, and maintenance of wildlife habitat. social and cultural benefits such as recreation, traditional resource uses and .
