Which of the following is true concerning cancer cells?

a. They evade the normal controls that trigger programmed cell death.
b. They must be attached to a substrate to divide in culture.
c. They exhibit density-dependent inhibition when growing in culture.
d. They stop dividing in culture when growth factors are depleted.

Aplant has an egg with 34 chromosomes how many chromosomes does a leaf cell of that plant have

Select all the correct answers. lactobacillus is a bacteria that live inside humans. these bacteria live on the nutrients from our bodies. they to keep our gut clean and healthy. s. typhi is a bacteria that enter our bodies through contaminated food. this bacteria causes infections in the body. based on this information, which two statements about the association between these bacteria and humans are true? a. lactobacillus shares a parasitic relationship with humans. b. s .typhi shares a parasitic relationship with humans. c. both lactobacillus and s. typhi share a parasitic relationship with humans. d. both lactobacillus and s. typhi share a mutualistic relationship with humans. e. lactobacillus shares a mutualistic relationship with humans, and s. typhi shares a parasitic relationship multiply chrse

Why can't you grow plants with adhesion water?