ake a random sample of the sporophyte population in your dish by counting up to 50 individuals and identifying the phenotype. Remove the lid of the petri plate and carefully count the largest leaf in each of the plants, taking care to count each individual only once. What is the observed ratio in the F2 sporophyte generation

the menstrual cycle – higher tier. negative feedback mechanisms affect the production of hormones in the menstrual cycle. oestrogen also stimulates the release of lh (luteinising hormone) from the pituitary gland, which in turn controls the production of progesterone.

answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.