Answer: "To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport mechanisms do just this, expending energy (often in the form of ATP) to maintain the right concentrations of ions and molecules in living cells."
Answer:
point mutation, change within a gene in which one base pair in the DNA sequence is altered. Point mutations are frequently the result of mistakes made during DNA replication, although modification of DNA, such as through exposure to X-rays or to ultraviolet radiation, also can induce point mutations
Option B. does not require the intake of carbon dioxide.
Becacuse, celullar respiration takes oxygen and produces carbon dioxide.
Cellular respiration involves both plants as animals.
Cellular respiration does not uses chlorophyl.
Photosynthesis is an energy conversion.
Answer:
b
Explanation:
the worm is living while the leaf is not
