In fruit flies, long wings are a dominant trait (L) and short wings are a recessive trait (l). Two fruit flies that are heterozygous for the long wings trait mate. The cross produces 180 offspring. How many of the offspring are expected to have short wings? 0
45
90
180

25% of the offspring, or 45 (B).

Explanation:

If they are heterozygous, they are Ll and Ll.  Put it in a Punnet square, the l and l match up in 1/4 squares to make 25% of the total flies.

45

Explanation

because 25% of the flies eat on it

explanation:

okay now i don't know this but for the pints nothing else to say bye

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.