Answer:
The beetles gland stores enough hydroquinone and hydrogen peroxide to allow the beetle to release its chemical spray roughly 20 times. Thus pulsed mechanism is beneficial for the beetle survival because the system uses pressure instead of muscles to eject the spray at a constant velocity, saving the beetle energy.
40 individuals emigrate, 0 individuals die, 10 individuals are born, 28 individuals immigrate would result in decrease in population showing negative population growth.
Explanation:
Negtaive population growth is a term used when individuals leaving the population is more than new individuals in the population.
Individuals would leave the population by two means:
either they die or emigrate from other places to join in.
The following scenario will be analysed by the formula provided to know the negative growth in population:
population growth = (birth rate + immigration) - (death rate + emigration)
putting the values in the equation:
first case:
immigrated individual = 14
emigrants = 0
new born = 14
died = 14
population growth = (14+14)-(14-0)= 14
second case:
immigrants = 28
emigrants = 40
new born = 10
died = 0
population growth= (10+28)-(0+40)= - 2
third case:
immigrants = 0
emigrants = 12
new born = 17
died = 5
population growth = (17 +0)-(5+12) = 0
fourth case:
immigrants = 0
emigrants = 19
new born = 25
died = 4
population growth:(25+0) - (19+4) =3
In second case the population growth has become negative. The value of population growth is -2.
Answer:
-Climate is the usual temperature, weather, humidity, wind, etc of a part of the earth. (The United States Climate is generally a cold winter and hot summer.).
-Climate change can effect an ecosystem because if an ecosystem has been used to this specific climate for years and it gets switch all the organism that have acclimated to that climate has a chance or death. (Like Global Warming, if the earth warms up from its usual temperature everywhere species will have to move and forced out of there homes. Some will even become extinct because of it.)
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.