Answer:
Chlorosis is the yellowing of leafs due to lack of chlorophyll. It can affect any part of the plant that would have normally have chlorophyll. Its caused by damage or compacted roots, and many other things.
I believe that all members of one species form a population.
1/2 of a radioactive substance will remain after 3 half lives.
The temperature of the water after adding the chemical.
Transition from breast or formula feeding until solid food is vital for child's development. Children can learn skills while eating solid food and will be ready to try mashed cooked beans around 7-10 months old. For a 3 year old toddler,it is recommended around 3 tablespoons.