Answer:
<h2>option b exothermic </h2><h3>explained here </h3>
Explanation:
Chemical reactions that release energy are called exothermic. In <u>exothermic</u><u> </u>reactions, more energy is released when the bonds are formed in the products than is used to break the bonds in the reactants. ... Endothermic reactions are accompanied by a decrease in temperature of the reaction mixture.
<h2>hope it helps please give brainliest plz follow </h2>
Answer:
See the answer below
Explanation:
The Chi-square (
) is calculated by the formula:
= 
where O = observed frequency and E = expected frequency
A standard dihybrid cross is expected to give 9:3:3:1 phenotypic ratio.
Phenotype O E
Round yellow 104 9/16 x 160 = 90 
= 2.18
Round green 27 3/16 x 160 = 30 
= 0.30
wringled yellow 27 3/16 x 160 = 30 = 0.30
wrinkled green 2 1/16 x 160 = 10 
= 6.40
Total value to two decimal places = 9.18
Degree of freedom = (n-1) = 4 -1 = 3
Critical value at 95% probabillity level = 7.815
<em>Since the calculated </em><em> si more than the critical </em><em> value, </em><em>the null hypothesis is rejected. </em>
Answer:
ribosomes
Explanation:
spamofletters ifjdndndndkxk
Answer:
The cascade amplifies the cellular signal, thereby receptor activation lead to potent responses
Explanation:
Usual signal transduction is produced by protein phosphorylation, this posttranslational modification activates signal transductors in order to bind receptors and ligands. In multicellular organisms, the signal transduction pathways regulate critical cellular processes including, for example, cell communication
