Answer:
A natural ecosystem has a diverse amount of species and plants, whereas artificial ecosystems are limited.
Explanation:
Natural ecosystems are self-sustaining and result from spontaneous natural reaction, while artificial ecosystems require the assistance of humans.
Answer:
During gas exchange oxygen moves from the lungs to the bloodstream. At the same time carbon dioxide passes from the blood to the lungs.
Answer:
The mean weight of the progeny is
grams
Explanation:
Given -
Mean fruit weight of tomato plant (M1)
g
Narrow sense heritability (h2)
g
Mean weight of tomato plant selected for artificial selection (M0)
g

Substituting the given values in above equation, we get -

The mean weight of the progeny is
grams