He smiled. "I don't know. It's the nth cellular descendant of some
plant that once grew on Earth."
She touched a dial she had adjusted. "And on this one you reduced the
fluid flow into it, and switched the output to another unit I've never
seen it connected to."
"Same thing. The input corresponds to the difference between the dry
and rainy seasons."
"But things grow faster with more water."
"They do, unless it happens to be a cactus."