Which of these is not an example of intracellular communication?

a. dna in a cell replicates
b. heart cells contract together
c. water regulation by a cell's central vacuole
d. charged ions distributed across a plasma membrane

When mendel crossed a true-breeding short plant with a true-breeding tall plant all the offspring were tall. which term describes the gene for tallnes?

In 1992, hurricane andrew left a wake of destruction through florida. one victim of the storm was a reptile-breeding facility. over 900 burmese pythons were set free, and today thousands of pythons live in florida. these pythons are an invasive species, or a harmful species not native to the region. 1. what impacts do you think the burmese pythons might have on local ecosystems

What is the farthest destination to date for a human spaceflight mission?