1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
Lelu [443]
3 years ago
9

Stromatolites (pictured here) are rocky structures that generally form in shallow waters from the binding of sediment by microbi

al biofilms. Stromatolites are typically hypothesized to be formed from the presence of cells that bind these grains together. If the appearance of the stromatolites in the fossil record were to indicate the emergence of life on earth, which cell types would most likely be responsible for their formation? A) Prokaryotic cells B) Eukaryotic yeast cells C) Eukaryotic plant cells D) Eukaryotic animal cells
Biology
2 answers:
Valentin [98]3 years ago
4 0

eukaryotic plant cells is correct ans

grigory [225]3 years ago
4 0

Answer:

prokaryotic cells

Explanation:

You might be interested in
You discover a new type of gland associated with the skin. Chemical analysis of the product shows a secretion has a pH of 4, con
vagabundo [1.1K]
<h2>A) option is correct </h2>

Explanation:

Skin has two types of sweat glands: eccrine and apocrine

Eccrine glands occur over most of the body and open directly onto the surface of skin whereas apocrine glands open into the hair follicle, leading to the surface of the skin and develop in areas abundant in hair follicles, such as on scalp, armpits and groin

The eccrine gland is controlled by the sympathetic nervous system and regulates body temperature

In some animals, when internal temperature rises the eccrine glands secrete water to the skin surface, where heat is removed by evaporation

Eccrine glands when active are considered major thermoregulatory devices

Smaller mammals, such as rodents, cannot endure dehydration and hence possess no eccrine glands at all

3 0
3 years ago
Eating a small serving of a food that is very acidic might present something of a paradox to your stomach because
Reptile [31]
 the presence of food in the stomach typically causes release of gastrin, but low pH inhibits release of gastrin.
6 0
3 years ago
Convert 30 ft to cm .......................................
Anon25 [30]
914.4 cm……………………………..
6 0
3 years ago
6. Marty Martian recently met Melissa Mercury online.
erastovalidia [21]

Answer: there is a 50% chance that they will have kids with blue hair and 50% chance they would have a blue body

Explanation:

4 0
3 years ago
Read 2 more answers
a sequence of amino acids called a blank is produced during the process of blank during this process, the blank of a TRNA molecu
eduard

Answer:

A transfer RNA (abbreviated tRNA and formerly referred to as sRNA, for soluble RNA is an adaptor molecule composed of RNA, typically 76 to 90 nucleotides in length,that serves as the physical link between the mRNA and the amino acid sequence of proteins. Transfer RNA does this by carrying an amino acid to the protein synthetic machinery of a cell (ribosome) as directed by the complementary recognition of a 3-nucleotide sequence (codon) in a messenger RNA (mRNA) by a 3-nucleotide sequence (anticodon) of the tRNA. As such, tRNAs are a necessary component of translation, the biological synthesis of new proteins in accordance with the genetic code.

Each mRNA molecule is simultaneously translated by many ribosomes, all reading the mRNA from 5′ to 3′ and synthesizing the polypeptide from the N terminus to the C terminus. The complete mRNA/poly-ribosome structure is called a polysome.

tRNAs in eukaryotes

The tRNA molecules are transcribed by RNA polymerase III. Depending on the species, 40 to 60 types of tRNAs exist in the cytoplasm. Specific tRNAs bind to codons on the mRNA template and add the corresponding amino acid to the polypeptide chain. (More accurately, the growing polypeptide chain is added to each new amino acid bound in by a tRNA.)

The transfer RNAs (tRNAs) are structural RNA molecules. In eukaryotes, tRNA mole are transcribed from tRNA genes by RNA polymerase III. Depending on the species, 40 to 60 types of tRNAs exist in the cytoplasm. Serving as adaptors, specific tRNAs bind to sequences on the mRNA template and add the corresponding amino acid to the polypeptide chain. (More accurately, the growing polypeptide chain is added to each new amino acid brought in by a tRNA.) Therefore, tRNAs are the molecules that actually “translate” the language of RNA into the language of proteins.

5 0
3 years ago
Other questions:
  • What did chloroplasts evolve from according to the endosymbiotic hypothesis?
    13·2 answers
  • 2. Why is chromatography useful?
    5·1 answer
  • The proximal radioulnar joint is a __________ joint
    6·1 answer
  • The female portion of the flower is the
    12·2 answers
  • What phase occurs directly after g2
    9·1 answer
  • What things made of atoms do you see in the video
    13·2 answers
  • Because of hemoglobin, blood is able to carry ____ times more oxygen than what can dissolve in the blood.​
    11·1 answer
  • How big is the earth
    8·1 answer
  • What is elasticity in polymers generally related to?
    6·2 answers
  • Researchers often find it more challenging to train dolphins rather than dogs even though dolphins are smarter. One of the reaso
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!