Cacti grow in the desert, which is a very hot climate. Not the best for both gaining and maintaining water supplies, due to the fact that water becomes vapour very quickly in conditions such as a desert (unless we're talking about polar deserts).
Keeping their stomata closed during the day stops water vapour from escaping their cells. While this does inhibit growth and stop new water molecules from entering, it allows the cactus to maintain a healthy amount of water within itself.
Water will cool down the organism
Answer:
Not all members of a species are the same. Every species exhibits_____ . For example, some beetles are green, while others are brown.
VARIATION
Not all individuals in a population will survive to reproduce. Those that do, pass their _____, to their offspring.
TRAITS;GENES
Zooplankton size variation:
1) picoplankton<span> - measure less than 2 micrometers
2) </span>nanoplankton -<span> measure between 2-20 micrometers,
3) </span>microplankton -<span> measure between 20-200 micrometers,
</span>4) mesoplankton - <span>measure between 0.2-20 millimeters,
</span>5) macroplankton<span> - measure between 20-200 millimeters,
6) </span>megaplankton - <span>measure over 200 millimeters (almost 8 inches). </span>
