Students create a model to show how a swimming pool warms by convection, as shown. swimming pool
water
heater
Will the entire pool be warmed by only using one heater, and why?
Yes. The cold temperature will be transferred to the air because the warm water from the heater pushes against the cold water.
o Yes. The heater warms the water in the entire pool because it warms the water at the bottom, which circulates to the top.
O No. The heater will not be able to heat the entire pool because water is a poor conductor of heat.
O No. The water warmed by the heater remains at the bottom of the pool because it has more thermal energy,

1) gene flow

- it is described as the transfer of genes from one population to another population so that frequency of gene is increased.

-a zebra migrates to join a different herd of zebras.

2) natural selection

- a mechanism of evolutionary change in which individuals with advantageous traits survive and reproduce whereas the others ( those that can not adapt) eliminate from the population.

-competition for sunlight leads to taller trees.

3) mutation

- permanent change in the nucleotide sequence of dna ( genetic material) that could have harmful or useful consequences.

-the dna of a snake changes to make its venom stronger.

4) genetic drift - it is a random phenomenon ( that occurs by chance such as fire) that results in change in the gene frequency in a small population.    

-a grassfire randomly sweeps through a population of buffalo and kills most of the animals.

explanation:

the wires in the toaster turning red and the toast crisping and turning brown

1. the energy lost to disorder metabolism     -entropy

2. related to or possessing motion potential     -kinetic

3. all of the chemical reactions in an organism required for maintenance of the processes of life entropy     -metabolism

4. possible; ability to go into action or perform work kinetic     -potential

5. the study of energy and its transformations thermodynamics     -thermodynamics

the unequal cytoplasmic division that  results  in  one egg  and three polar bodies ensures that a fertilized  egg has  ample nutrients  forits journey  to  the uterus.