Cancer The use of drugs to treat a disease.
Chemotherapy
A mass of abnormal cells.
Fill in the blanks with the correct words.
Cancer is something like a weed . It can overrun
cells. There are more than
types of cancer and it can occur
in the body. Cancers are often named for the part of the body they
in, such as
cancer begins in the lungs.
Cancer begins when something Damages a portion of the DNA in a chromosome. Cells will begin to divide in an uncontrolled
way, spreading through the body.
Steps to How Cancer Spreads
Step 1
Cells break off from tumor and enter the
bloodstream

Astudy by solloch and et. al., in 2017, gives the map above which shows the frequency of alleles with a ccr5-delta32 mutations over 87 different countries. this mutation deletes the presence of a co-receptor (ccr5) on the outside of human t-cells (lymphocytes). some viruses, such as the one responsible for the black death and human immunodeficiency virus (hiv), require this receptor for attachment to host cells during the infection process. the black death was an epidemic that passed over northern europe during the 14th century killing nearly 60% of europeans. according to this information, which explanation best explains why northern europeans show a greater immunity for hiv than some other parts of the world?

On a spring day, a middle-latitude city (about 40? north latitude) has a surface (sea-level) temperature of 10 ? c. if vertical soundings reveal a nearly constant environmental lapse rate of 6.5 ? c per kilometer and a temperature at the tropopause of –55 ? c, what is the height of the tropopause?

The recycling of water from the ground via runoff or transpiration through plants back into the atmosphere is known as part of the question 6 options: hydrogen cycle nitrogen cycle transpiration water cycle