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Grace [21]
3 years ago
13

At times during a month, there is no moon visible from earth, even on a clear night. Which phase of the moon is this?

Biology
1 answer:
Pani-rosa [81]3 years ago
3 0
First quarter. I hope this is helpful
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The same, unknown bacteria is isolated from 20 sick individuals. Their samples were grown in culture and then placed in 10 healt
AleksAgata [21]
<h2>Koch's Postulates.</h2>

Explanation:

The next step should be isolate the microorganism from the mice and check if it is identical to the original microbe.

According to Koch's postulates, a microbe can be considered as a causative agent of a disease only after all the following are established:

  • The microorganism should be present in all the organism suffering from the disease.
  • The isolated microorganism should be grown in pure culture.
  • The organism grown in the culture should be reintroduced in the susceptible but healthy host.
  • Finally the microorganism must be re-isolated from the experimental host an cultured to see whether it is identical to the original specific microorganism.

4 0
3 years ago
Read 2 more answers
If organisms A, B, and C belong to the same class but to different orders and if organisms D, E, and F belong to the same order
zalisa [80]

Answer:

Any combination of D, E and F

Explanation:

Since A, B, and C belong to different orders, and D, E and F belong to the same order, the latter are more closely related and thus are expected to show a greater degree of structural homology. They are closer to their common ancestor than A, B and C.

7 0
3 years ago
Is there a Genetic Basis for Adapting to Life at High Altitudes? A team of scientists from the United States and China set out t
Oliga [24]

Answer:

Looking at tibetan highlanders who thrive at high altitudes- normally that would make us sick- they have adapted, 60% oxygen- could pose huge health issue (live with 10% less oxygen in blood than us)

Explanation:

Evolutionary adaptations- involve a change in the genetic makeup to help individuals survive in environment. Tibetans have adaptations to let them function at high altitudes

7 0
3 years ago
Brandon burns and christina santhouse lost neurons due to injury and/or surgery. one potential application of _____ could be to
anzhelika [568]

The answer is a stem cell.  there is the unspecialized cell that generates or capable of renewing themselves through cell generation. Stem cells are important for living organisms for many reasons. In the 3- to 5-day-old embryo, called a blastocyst<span>, the inner cells give rise to the entire body of the organism, including all of the many specialized cell types and organs such as the heart, lungs, skin, sperm, eggs and other tissues.</span>

8 0
3 years ago
Which of the following is the coenzyme that functions as an electron carrier in photosynthesis?
faltersainse [42]

Answer:

The correct answer is C. NADP⁺

Explanation:

NADP+ is the coenzyme that acts as the electron carrier during the photosynthetic process. The electron that is released from the splitting of water pass through the electron transport chain and at the end of the chain the electron is received by an electron carrier called NADP+.  

So this passing of electron causes the transport of H ions in the thylakoid lumen from the stroma and when these ions come back through ATP synthase it forms ATP. Then these NADPH and ATP are used in the Calvin cycle to fix the CO2 into complex form. Therefore the correct answer is C. NADP⁺.

8 0
3 years ago
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