Answer:
ANTS
Explanation:
Is this right? Hope it is
Which two mineral samples would be most
difficult to distinguish from each other based on
their color, luster, and streak?
diamond
Talc is the softest and diamond is the hardest. Each mineral can scratch only those below it on the scale.
If there were less greenhouse gases, much of the infrared radiation that is converted to heat today would not be trapped in the earth's atmosphere. The earth's temperature would cool, and a new Ice Age would occur. Many plants and animals could not survive in this new condition, oceans would freeze, and weather patterns would change.
Hope that helped
Blood group o; a universal donor and blood group B
Answer:
The correct answer is D. production of new cell-surface proteins with a different molecular structure by each new generation
Explanation:
Trypanosomes infections is famous for evading the immune response of the body because it has the ability to make change in its variant surface glycoprotein having different molecular weight and this phenomenon is called antigenic variation.
So adaptive immune system is not able to recognize the trypanosome by its glycoprotein because the old surface glycoprotein against which the memory cells were produced previous time is now changed.
Therefore the immune system will not recognize the new generation of trypanosome with different variants of cell surface glycoprotein. Therefore the right answer is D.
