Answer:
The most recent common ancestor of all currently living organisms is the last universal ancestor, which lived about 3.9 billion years ago. ... 6,331 groups of genes common to all living animals have been identified; these may have arisen from a single common ancestor that lived 650 million years ago in the Precambrian.
M1V1=M2V2
M1 * (650 ml) = 0.675 M *450 ml
M1= (0.675 M * 450 ml) / 650 ml
M1= 0.467 M
All galaxies have a dense core of stars. Spiral galaxies, however, have arms that are often visible. There are two kinds of spiral galaxies: barred, where there appears to be a line running from arm to arm through the core, and <span>ordinary, where there is no bar. @Badbunnyhunny</span>
The secondary consumers will be able to survive, as well as decomposers, as they kill the primary consumers, which depends on the plants, and teaches them to their offspring
<span>tRNA docks on the A site before being transferred to the polypeptide in elongation.
One mnemonic to remember this is E (exit) site, P (polypeptide) site, and A (acceptor) site to remember the sites in a ribosome.</span>
