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>
Answer:
The correct option is A. mRNA.
Explanation:
mRNA is a single stranded RNA molecule, complementary to one of the DNA strands of a gene. Also known as messenger RNA, mRNA is synthesized in the nucleus and then exported to the cytoplasm, where the translation machinery (the machinery that actually makes the proteins), binds to the mRNA molecules and reads in them the code to produce a protein specific. During protein synthesis, an organelle called a ribosome moves along the mRNA, reads its sequence of bases, and uses the genetic code to translate each triplet of three bases or codon, into its corresponding amino acid.
<span>Flatworms possess excretory organs known as nephridia. Specifically as annelids, flatworms possess a variant known as metanephridia. This variant is defined by a cilia-lined funnel that opens into a coelom that empties through a anus to the outside of the organism.</span>
Answer:
The conversion of nitrogen can be carried out through both biological and physical processes. Important processes in the nitrogen cycle include fixation, ammonification, nitrification, and denitrification.
The answer would be car tired break up the ground, causing increased erosion. Rubber in a tire form can not get plants sick(unless it is carrying a disease), plants are used to dappled sunlight so that wouldn’t be a problem, increased fuel usage may be true however it is no concern to the park rangers
