Trees produce oxygen in order for us to breathe. if we cut them down there is less oxygen for us.
in an area of wildlife many different animals survive off of trees. cutting down the trees could lead to the extinction of specific animals.
<span>The most primitive vertebrates whose reproductive pattern includes the amniotic eggs are the reptiles.
An amniotic egg is filled with amniote, which are these membranes that have fluid in them. They serve to protect the embryo and enable it to survive any harsh conditions that may harm it. These cells have protein shells as well as calcium that provide further protection.
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The answer is Echinoderms.
According to the Embryological studies, the most ancient chordates were closely related to the ancestors of the echinoderms. Echinoderms are members of the group Phylum Echinodermata of marine animals. Some known echinoderms are starfish, and sea cucumbers.
Answer:
Mass
Explanation:
The larger a star's mass, the shorter it's lifespan.
I hope this helps! ☺
The cell membrane is semi-permeable, kind of like a filter to let some molecules in and keep larger molecules out
