What is a hybrid tell me if you do

A hybrid is an animal or plant resulting from a cross between genetically unlike individuals,a picture is below as an example of a HYBRID

Also, a hybrid can be something changed after being created.

Hybrids can be; cars,animals and even people (nephilim).

I hope this helps

this is true, assuming that the allele is completely recessive and incomplete dominance is not a factor.

measuring light intensity

light meters can be used to measure light intensity. the meter is held at the soil surface and pointed in the direction of the maximum light intensity, and then the meter is read.

errors can be made when measuring light intensity by accidentally shading the light meter. the reliability of the results can be checked by taking many samples.