Viruses, although not considered to be alive, attack host cells and cause disease. the attack of a host cell is necessary for the virus to survive for all of the reasons listed except one. that is
a) they cannot synthesize proteins because they lack ribosomes and must use the ribosomes of their host cells to translate viral messenger rna into new proteins.
b) they cannot produce or store energy in the form of atp and have to get their energy from the host cell.
c) they parasitize the host cell for basic molecules like amino acids, nucleotides, and lipids.
d) they lack dna so they must use the dna of the host cell

Zoe decided to measure the hand length of each of her classmates. first she marked a line across each student's wrist and lined up a ruler from this mark to the top of the middle finger to measure the length. then she recorded the measurements in the table below. marla did this the same way for each classmate, and then zoe used this ruler to measure each straight line and record the data below. this data is invalid. what is the most likely reason why it is invalid? the ruler is marked in centimeters, but zoe recorded data in inches. the range of lengths is too wide, so zoe must have misread the ruler. marla’s complicated measuring procedure was overly confusing. marla could have been inconsistent while drawing outlines of fingers.

What statements describe a host organism?

There is a liquid capsule inside a cup full of liquid. the cup full of liquid has salt in it and the liquid capsule has no salt in it. in which direction will the solvent flow? a. the salt does not have to move b. from the capsule to the larger cup c. equally between the capsule and the cup d. from the larger cup to the capsule