Answer: I think it's c im sorry if it's wrong
Explanation: I took the test on Monday
<span>Lithogenous sediments are formed due to the weathering(wind, rain, freezing) process.This sediments consists consists of small particles of oceanic volcanoes and weathered particles as a result of ionic bond between the metals and silicate ions while b</span>iogenous sediments as the name suggests is as a result of insoluble remnants of past life such as both, teeth and shells.The main types of biogenous sediments are Calcareous (calcium carbonate) and <span>siliceous(silica).</span>
Answer:
- Cell mediated immunity uses what type of WBC to attack and kill the infected cell? <u>T-cells</u>
- <u> Helper T </u>or <u>Killer T cells</u> are released that cause the cell to lyse or <u>undergo apoptosis.</u>
Explanation:
White blood cells or leukocytes are integral to cell-mediated immune function in the human body. T cells are produced in bone marrow, and mature in the thymus. They recognize antigens on virus-infected cells and target them for attack; antigens and receptors fit together to allow for identification.
- Helper T cells aid in activating other immune cells, along with eliminating cells infected by pathogens; they release cytokines
- Killer T cells produce special toxins (perforins and then cytotoxins) that lead to cell lysis and programmed cell death or apoptosis.
3 A hydrogen bond
Forms between two molecules that have H-O, H-N, or H-F