Answer:
As of July 2017, the International Union for Conservation of Nature (IUCN) lists <em><u>455</u></em> critically endangered fish species. Hope this helps!
Adult sponges are mobile none sessile animals
Quinine is used to treat malaria and its symptoms (B). It works by killing the organisms that cause malaria (Plasmodium falcipartum). Keep in mind its only used to treat malaria, but not to prevent it.
Answer:
A - It allows for genetic variation among organisms.
Explanation:
Its basically sex or sexual reproduction. Which later allows for genes to spread and vary. Which create families in animals and humans.
Because Meiosis is Sexual Reproduction
<em>Hope</em><em> </em><em>this</em><em> </em><em>Helps</em><em>!</em>
<em>:</em><em>D</em>
Answer:
Streptomycin and Erythromycine.
<u>Streptomycin:</u> inhibit protein synthesis by combining irreversibly with 30s subunit mRNA.Thus the normal synthetic sequences is disrupted.
Streptomycin does not stop protein synthesis in eukaryotic cells because it does not bind to eukaryotic ribosomes.
<u>Erythromycine:T</u>he Erythromycine inhibits protein synthesis through interference with the binding 50s subunit ribosome.
Erythromycin does not estop protien synthesis in eukaryotic cells because it does not binds to eukaryotic ribosome.Specificity towards prokaryotes relies upon the absence of 50S ribosomes in eukaryotes.
Antibiotics block processes that occur in prokaryotic cells but not in eukaryotic cells that's why they not affect ekaryotes.
Explanation:
Antibiotics are simply chemicals that kill prokaryotic cells but do not harm eukaryotic cells. They are natural chemicals produced by fungi and bacteria that act to control their bacterial competitors.
Antibiotics block processes that occur in prokaryotic cells but not in eukaryotic cells that's why they not affect eukaryotes.
There are different classes of antibiotics inhibit different steps of prokaryotic life cycle.
<u>Streptomycin and Erythromycin </u>are group of antibiotics that inhibit protein synthesis of bacteria.They are specifically effective against prokaryotes does not inhibit protien synthesis of eukaryotes.
