
Which is not an echinoderm?
A.)starfish
B.)sea urchin
<h2>C.)squid</h2>
D.)sand dollar

<h3>Starfish, sea urchin and sand dollars are echinoderm. </h3>
It would have a knock on effect
the flood possible would destroy vegetation, leads to a decrease in the numbers of primary consumers , then secondary an so forth.
<u>Full question:</u>
Which of the following is/are characteristic of the earth but not the moon? A. Molten core B. Plate tectonics C. Asteroid impacts D. Volcanoes
<u>Answer:</u>
Plate tectonics is characteristic of the earth but not the moon
<u>Explanation:</u>
Tectonic plate movements in Earth are forced by convection in the mantle-the hard mantle transits at rates of a some centimeters a year. The Moon’s mantle, too cool to travel easily, has no convection and no moving tectonic plate motions. More uncommon movements inside the Moon indicate fewer quakes. The few moonquakes that do happen are made fundamentally by gravitational tugs by Earth and Sun ).
The quantity and intensity (magnitude) of moonquakes is much less than the quantity and consequence of earthquakes. The feasible reason of this discrepancy is the Moon's smaller size and cooler interior. Earth is hot and active, manifested most dramatically in plate tectonics. The secret of plate tectonics is that the Earth has gaps between the continents, and so they can move around like a sliding block puzzle.
Answer:
Which of the following is not something organisms directly compete for in an ecosystem?
elevation is not directly competed for other than food, water, and mineral nutrients that are necessities which an organism depend on
Explanation:
The answer is ribose.
mRNA is actually messenger ribonucleic acid. As any other RNA (ribonucleic acid) it consists of a phosphate group, sugar ribose, and nucleobases (adenine, uracil, cytosine, guanine). So, it is called RIBOnucleic acid because it consists of sugar RIBOSE.
Take for example DNA - deoxyribonucleic acid. It is called DEOXYRIBOnucleic acid because it consists of sugar DEOXYRIBOSE.