Answer:
a) stomata
Explanation:
The stomata are little pores / doorways / openings that have the express purpose of allowing gases in and out. Without this, plants would not be able to fix carbon, which is essential in respiration.
Why not c or b: The xylem and phloem channel water through the plant, not gases.
Why not d: The cuticle is the waxy outer layer of the leaf meant to protect it, not allow gases through.
When people think about weather they think about short-term changes in the atmosphere.
B. The length of time over which the conditions are measured
Answer:
cords in walkway , horseplay, not locking and tagging out broke machines, tools not put away in proper place
Mrna and trna direct the cells to make the proteins needed out of amino acids
<span>A biochemist modified a protein so the amino acid lysine occurred where the amino acid aspartic acid previously occurred. this change could ...
</span>alter the protein's tertiary structure. Hope this Helps