Question 3 1 pts
At the beginning of 7th grade, Brandon took the FitnessGram pre-test in
PE and was disappointed in how he did on the push-up test. He was a
football player and knew that having better upper body strength would
help him become a better player. He decided that he was going to try to
do 30 correct push-ups on the post-test, which was three months away.
Brandon did several upper body exercises at home three times a week.
Every other Monday, he recorded how many correct push-ups he could
do without stopping, and on the FitnessGram post-test, he was able to do
30! Which statement describes how Brandon's goal was time-bound?
O The post-test was three months away.
O Every other Monday, he recorded how many push-ups he could do without
stopping.
O He was a football player, and upper body strength is important in football.
He did upper body exercises at home three times a week.

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

so here is the information for current research:

-nrel's geothermal analysts, scientists, and engineers perform a full range of research from developing advanced methods of locating and accessing geothermal resources to exploring innovative technologies to extract and produce clean energy from the heat of the earth

and here is the information for the technology of geothermal energy:

-it's clean and sustainable

-resources of geothermal energy range from the shallow ground to hot water and hot rock found a few miles beneath the earth's surface, and down even deeper to the extremely high temperatures of molten rock called magma

-almost everywhere, the shallow ground or upper 10 feet of the earth's surface maintains a nearly constant temperature between 50° and 60°f (10° and 16°c)

-geothermal heat pumps can tap into this resource to heat and cool buildings

-a geothermal heat pump system consists of a heat pump, an air delivery system (ductwork), and a heat exchanger-a system of pipes buried in the shallow ground near the building

-in the winter, the heat pump removes heat from the heat exchanger and pumps it into the indoor air delivery system

-in the summer, the process is reversed, and the heat pump moves heat from the indoor air into the heat exchanger

-the heat removed from the indoor air during the summer can also be used to provide a free source of hot water