A contractile vacuole<span> is a sub-cellular </span>organelle<span> involved in </span>osmoregulation<span>. It is found in </span>protists<span> and in </span>unicellular algae<span>.
</span>Plasmolysis<span> is the process where cells lose water in a </span>hypertonic<span> solution.</span><span>
</span>Crenation<span> from modern Latin </span><span>meaning scalloped or notched from popular Latin </span>crena<span> meaning notch
</span>
By the Pollution of the ocean can kill plant and animal life near by and those who eat those plants and animals
Answer:
Scientist count the world humans population with an organization called The United Nations Population Division (UNPD),
Explanation:
Which keeps track of the world population, projects that the world's human population will hit 7 billion on Halloween Day 2011. Admittedly, that is just an estimate: There's no way to know exactly how many people are alive at any given moment, and the true date that humanity's ranks will surpass 7 billion could come in the weeks or months before or after Oct. 31. Nonetheless, the UN's guess is the best there is.
Answer:
Roads and traffic affect wildlife populations in three major ways, by (i) increasing mortality, (ii) decreasing habitat amount and quality and (iii) fragmenting populations into smaller sub‐populations which are more vulnerable to local extinction.
Explanation:
