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saw5 [17]
3 years ago
5

Extracts of the rosy periwinkle, catharus roseus, have provided medicine with vincristine and vinblastine, drugs now available f

or treating cancer. the ability to find this species of plant and discover these drugs is a strong argument for
Biology
1 answer:
viva [34]3 years ago
5 0
The answer is preserving biodiversity. It can be well-defined as the biological changeability among all living plants and animals of the earth as an outcome of the evolution procedures and contains of three levels of biological diversity which are genetic diversity, species diversity and ecosystem diversity.
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Halophilic bacteria possess a pigment related to ____________ that absorbs solar energy to pump chloride ions, keeping them aliv
charle [14.2K]

Halophilic bacteria possess a pigment related to the plant's chlorophyll.

<h3>Halophilic bacteria</h3>

They are bacteria that live in high salt environments. They have a certain feature that enables them to pump out salts in order to maintain normal osmotic conditions in their bodies.

Halophilic bacteria are equipped with bacteriorhodopsin and halorhodopsin. These enable them to photosynthesize like plants. and generate the much-needed ATP for pumping out salts.

More on halophilic bacteria can be found here: brainly.com/question/12500605

#SPJ9

6 0
1 year ago
Gene expression in eukaryotes can be regulated at many different levels. List the different levels of regulation, and explain wh
Aneli [31]

Answer:

Transcription, mRNA (processing, transport, localization and stability), translation.

Explanation:

  • Transcription is regulated in two levels, though chromatin regulation (methylation and acetylation) to loose or increase histone's affinity to DNA and through cis and trans elements such as promoters, enhancers, and silencers (cis) to active/deactivate and RNA polymerase and transcription factors and co-factors (trans).
  • mRNA can be regulated using poly-A tails or 5'-caps to shorten or give them more time before they degrade, it could also be spliced to eliminate introns.
  • In the translation stage, the regulation occurs during the initiation through a scanning procedure that ensures the 40s ribosomal subunit bind correctly to the untranslated portion of RNA

Hope this information is useful to you!

4 0
3 years ago
Difference between incomplete and complete ventilation? any 4​
Temka [501]

Answer:

Due to exchange of gases i.e. normal and abnormal.

Explanation:

The main difference between incomplete and complete ventilation is the occurrence of normal and abnormal exchange of gases. The mechanism in which the exchange of gas happens completely without any difficulty is called complete ventilation. It is the process in which the required amount of oxygen is inhaled or inspired and appropriate amount of carbon dioxide is exhaled out of the body while on the other hand, incomplete ventilation is a mechanism in which exchange of gases is not normal.

7 0
3 years ago
Hello everyone y'all probably tried but can anyone answer this ? for me Why are acid and base indicators important? How could th
salantis [7]

Answer:acid and base indicators are used to estimate the pH of a solution

Explanation:

5 0
3 years ago
Koalas are marsupials that are found in eastern Australia. Although their ancestors lived mostly on the ground, modern koalas sp
juin [17]
Their fur color is very similar to the color of the bark on the eucalyptus tree.
6 0
3 years ago
Read 2 more answers
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