30 points and

hiv is a disease that reduces t cell production in the immune system. would hiv increase or decrease a person's chance of developing cancer cells?

a. the person's chances would increase because t cells can destroy cancer cells.

b. the person's chances would increase because t cells prevent cancer cell division.

c. the person's chances would decrease because t cells create lymph, which reduces cancer cell growth.

d. the person's chances would decrease because t cells are especially susceptible to becoming cancerous.

What causes eclipses? check all that apply. earth's rotation on its axis moon's shadow covering the sun earth's shadow covering the moon earth's orbit and moon's orbit occasionally aligning the moon and sun's gravity pulling in the same direction

Draw a simple labelled diagram if a collenchyma tissue

We live in the cenozoic era, and scientists know more about this era and the epochs it's divided into than any other time period. why is this? a. we know more about the cenozoic era because this is the only era that has had a wide diversity of species living on earth. b. we know more about the cenozoic era because the planet's poles reversed magnetic fields at the beginning of this era. c. we know more about the cenozoic era because fossils don't exist to document previous eras. d. we know more about the cenozoic era because this is the most recent time period in the history of the earth, and we have more information available to study.