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scoundrel [369]
3 years ago
10

Scientific investigations can include both direct and indirect observations

Biology
1 answer:
77julia77 [94]3 years ago
8 0
If this is true and false, the answer is true. if not, please elaborate, hope this helps.
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Explain the connection between the beginning of life and the universal genetic code
GaryK [48]

The connection between the beginning of life and the universal genetic code is that they all started with a simple one celled molecule. The Universal genetic code is a common language for almost all organisms to translate nucleotide sequence of deoxyribonucleic acid that is DNA and ribonucleic acid that is RNA to amino acid sequences of proteins. All living Organisms have a genetic code generally represented by the sequence of nucleotides in their DNA.

8 0
3 years ago
Compare and contrast visible light and ultra violet rays coming from the sun. A) Ultraviolet waves are energy waves and light is
kari74 [83]

Answer:

C) Both are waves of energy, but ultraviolet waves cannot be seen.

Explanation:

Both visible light and ultraviolet are two manifestations of the same thing: electromagnetic radiation (which is, basically, energy in one of its forms). They both travel empty space as waves, but visible light has a longer wavelength, which means that the distance between succesive peaks of the wave is larger than that of ultraviolet radiation. Visible light just happens to have a wavelength in the range our eyes are capable of seeing, but ultraviolet has a shorter wavelength than that, therefore we cannot see it.

3 0
2 years ago
Can anybody please help me with this
gulaghasi [49]
Delta can also be an easy answer plus it is easy to remember
4 0
2 years ago
The cholera toxin, an AB exotoxin, attaches an ADP-ribose group to the host's stimulatory G factor (Gs). The normal function of
SCORPION-xisa [38]
<h2>b) option is correct </h2>

Explanation:

  • Some bacterial toxins cause disease by  altering the activity of G protein, cholera toxin is one of them
  • Cholera toxin catalyse ADP ribosylation of Gs and blocks GTPase activity thus Gs GTP become permanently active
  • Constitutive activation of Gs protein continuously induce adenylyl cyclase, cytosolic cAMP level rises that leads to activation of protein kinase A (pKA)
  • Activated pKA catalyse phosphorylation of two transmembrane proteins of intestinal epithelial cells:
  • CFTR cause excessive outflow of Cl- ion and Na+ H+ exchange cause efflux of Na+ ion, both enters in gut and form Na+ Cl-
  • Na+Cl- leads to outflow of water from the gut, resulting in diarrhea and dehydration and this condition may cause death of organisms due to loss of water and ions  
6 0
3 years ago
A red blood cell is losing water to its surroundings is in:.
Gelneren [198K]

Answer:

I do not know

Explanation:

You did not explain it well.

3 0
2 years ago
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