Xylem is a plant tissue made up of special hollow, tubular cells that are
stacked end to end throughout the stem of the plant. Xylem allows plants
to survive by providing which of the following functions? *

a) Absorbing nutrients from the soil

b) Producing chlorophyll for photosynthesis

c) Transporting water from the roots to the leaves

d) Releasing water vapor into the atmosphere

Which statements correspond to cellular respiration? co2 diffuses passively into the cell. co2 diffuses passively out of the cell. co2 must be pumped out of the cell. o2 diffuses passively when produced inside the cell. o2 diffuses passively when converted to co2. o2 is pumped in and forces co2 out.

What was dr. willem johan kolff’s first step in using the scientific process to invent the hemodialysis machine? he built the machine and tried it with various patients, collecting data about its effectiveness. when a patient’s kidneys failed, he wondered if it would be possible to perform kidney functions with an external machine. he researched and collected data about numerous patients who exhibited symptoms of kidney failure. he drew conclusions from studies of various symptoms of kidney failure, and drew a design for the ideal external blood-processing machine.

Involving transcription and translaton. explain the causes and effects of damage to the genetic code.