Answer:
D
Explanation:
As more trees(wood) are cut down the forest can replenish it self, the animals(biodiversity) numbers in the forest are decreasing because they don't have the resources they had before to survive.
D. <span>a cell that has one complete set of chromosomes</span>
The number of covalent bond an element can form depends on the number of electrons it has in its outermost shell (valence electrons). Carbon has four valence electrons, therefore, it can form maximum of four covalent bonds in an organic compound.
Well, nothing exists between the air and the water surface. ... The final process, radiation, is causing the winter-time air temperatures over water to be warmer than the winter-time air temperatures over land. The heat of the ocean is being given off (radiated) into the air, thus making the air substantially warmer.
<span>Basically, retrotransposons is transcribed
then reverse transcriptase produces a double-stranded DNA copy of the element
which is then inserted into the genome. In addition retrotransposons cont are
related to retroviruses that all carry pol and some contain gag. It is a none
encode env thus they can be reverse transcribed and inserted into host DNA but
are unable to produce viral particles. However a typical DNA transposon
transposed through consevative or replicative transposition. Thus these DNA
transposons are a group of transposable elements that can move in the DNA of an
organism via a single or double-stranded DNA intermediate. They have been found
in both prokaryotic and eukaryotic organisms. </span>
