In horses, the trotter characteristic is dominant to the pacer characteristic. A male trotter mates with three different females, and each female produces a foal. The
first female, a pacer, gives birth to a foal that is a pacer. The second female, also a
pacer, gives birth to a foal that is a trotter. The third female, a trotter, gives birth to
a foal that is a pacer. Determine the genotypes of the male, all three females and
the three foals sired.

we would need to see the picture to answer it

b tumor cells have a cell wall instead of a membrane

explanation:

tumor cells different from normal cells because tumor cells have a cell wall instead of a membrane.

the alkaline earth metals (beryllium (be), magnesium (mg), calcium (ca), strontium (sr), barium (ba), and radium (ra)) are a group of chemical elements in the s-block of the periodic table with very similar properties: shiny. silvery-white. hopefully this ? i didn't fully understand the question