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USPshnik [31]
3 years ago
11

The ancestors of elephants inhabited every continent except Antarctica and Australia. But the Asian and African elephants are th

e only ones to survive. Why?
Biology
1 answer:
Natasha_Volkova [10]3 years ago
3 0
The correct answer should probably be Natural selection. Those elephants could not adapt to the environment unlike those in Asia and Africa and eventually became extinct.
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Which of the following terms is used to describe the steady breeze of particles flowing out from the sun?
STALIN [3.7K]
<h2>Answer:</h2>

The term is <u>solar wind</u>.

<h2>Explanation:</h2>

The breezy particle which is produced from the corona region of the sun is called as Solar wind.  It is made up of electrons, protons and alpha particles with kinetic energy. Implanted inside the sunlight based breeze plasma is the interplanetary attractive field.  

The sun oriented breeze shifts in thickness, temperature and speed after some time as the sunlight changes. Its particles can get away from the Sun's gravity on account of their high vitality coming about because of the high temperature of the crown, which is caused due to source of origin called corona.

8 0
3 years ago
Which of these describes passive immunity? A.It occurs on the binding sites of antibodies. B.It is immunity that occurs after yo
DENIUS [597]

Answer:

C

Explanation:

Becuase fom a vaccine you are recieving antibodies by another animal or human donor.

D is unlinkely since it describes how the mother is nursing the baby, so nothing directly mentioning of the baby recieving any antibodies. The other options also talk about how the body creates its own antibodies, which isn't passive immunity.

3 0
2 years ago
Match each rock with the correct description.
Sergio039 [100]

Answer:

quartizide - 5

limestone - 1

shale - 3

basalt - 4

sandstone - 2

correct me if im wrong.

8 0
3 years ago
Read 2 more answers
Check your understanding. Which items did you
s2008m [1.1K]

RNA nucleotides form complimentary base pairs with DNA bases.  Hydrogen and sugar-phosphate bonds form and the mRNA is synthesized.

Explanation:

The process of mRNA formed by DNA is called transcription. The genes coding for the protein is present on DNA as a nitrogenous base or nucleotides.

Transcription takes place inside the nucleus with the assistance of major enzyme RNA polymerase. In transcription 5'to3' single strand of RNA is synthesized which is complementary to the 3'to5' strand of DNA. The sequence of DNA has promoter sites which will be recognized and DNA will unzip to form transcription bubble. Several transcription factors and enzyme will be required to synthesize mRNA.

This mRNA after some modification would become primary transcript and pass on to the cytoplasm where protein synthesis will take place.

8 0
3 years ago
What type of nosocomial infection is likely to arise from intravenous catheterization?
mrs_skeptik [129]

Answer:

The correct answer is c. Bacteremia

Explanation:

Nosocomial infection is a hospital-acquired infection. Intravenous catheterization is majorly used in hospitals for therapeutic purposes like drug administration, blood sampling, etc.  

These catheters are one of the major causes of nosocomial bacteremia in patients. Bacteremia is the condition in which bacteria is present in the blood.

So these catheter can be contaminated with bacteria which came from a patient and when they are used in another patient without proper sterilization they can transfer these bacteria to other patients blood which then cause nosocomial bacteremia.  

8 0
3 years ago
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