Euglenoids, dinoflagellates, and usually Diatoms are unicellular while brown algae, red algae and green algae may be multicellular. Photosynthetic pigments are found in all algae like chlrophyll a and yellow or orange carotenoids. Also, almost all algae is aquatic. Also, all algae are eukaryotes and the sex organs are unicellular in all algae.
Hey there!
Here is your answer:
<u><em>The proper answer to this question is "water vapor, carbon dioxide, methane, nitrous oxide</em></u><span><u><em>, and ozone".</em></u>
Reason:
<u><em>When the sun shoots the harmful heat rays (radiant energy)onto Earths atmosphere its get sucked from the ozone layer transforming the radiant energy into greenhouse gases! (making five types)</em></u>
<em>Therefore the answers are water vapor, carbon dioxide, methane, nitrous oxide</em><span><em>, and ozone.</em>
If you need anymore help feel free to ask me!
Hope this helps!
~Nonportrit</span>
</span>
Answer:
The claim is valid because the lac operon allows a bacterial cell to shut down a metabolic pathway if it is not immediately needed.
Explanation:
The lac operon is a cluster of genes which contain the same promoter sequence and are transcribed as a single messenger RNA (mRNA). This operon is inducible because the presence of lactose in the cell influences its transcription. Lactose can bind to the repressor of this operon, leading to a conformation change in the repressor, thereby preventing the repressor from binding to the operator and thus allowing transcription of the structural genes. After lactose addition, the β- galactosidase enzyme can break this carbohydrate into glucose and galactose, thereby there is no lactose able to bind with the repressor and therefore this operon shuts down. During transcription, the promoter of the lac operon binds both RNA polymerase and catabolite activator protein (CAP) and cyclic AMP (cAMP) complex.
A hypotonic solution is a solution in which there is a lower concentration in solutes (ex. salt) dissolved in the solvent (ex. water). A hypertonic solution would be one in which there is a higher concentration of solutes in the solvent.
