Use your brain power! or
1. Why do doctors advise you to have
yoghurt or buttermilk if you have
indigestion
abdominal
discomfort?
2. Sometimes, yoghurt becomes bitter
and froths up. Why does this
happen?
3. Which different milk products are
obtained at home by fermentation
of the cream from the milk?

•there must be variation for the particular trait within a population.

•the variation must be inheritable (that is, it must be capable of being passed on from the parents to their offspring).

•individuals with one version of the trait must produce more offspring than those with a different version of the trait.good

explanation:

compost can be added to topsoil as a:

pesticide

only about ten percent of the energy at one trophic level is passed on to organisms at the next trophic level. the remainder of the energy is used in life processes or lost as heat.

nb

explanation:

kj