Answer:
The correct answer is - mitochondria lack ribosomes like prokaryotes.
Explanation:
The Endosymbiotic Theory says that mitochondria and chloroplast in eukaryotic cells are developed by the once aerobic bacteria that were engulfed by a large anaerobic bacteria.
This theory suggests the origin of eukaryotic cells. Various evidence exists such as mitochondria and chloroplasts contain their own circular DNA like prokaryotic cells and mitochondria and chloroplasts have 70S ribosomes like prokaryotes have.
Cl 1- has 17 protons and 18 electrons
K 1+ has 19 protons and 18 electrons
S 2- has 16 protons and 18 electrons
Sr 2+ has 38 protons and 36 electrons
Al 3+ has 13 protons and 10 electrons
P 3- has 15 protons and 18 electrons
Si 4- has 14 protons and 18 electrons
56+/54- has a charge of +2
87+/86- has a charge of +1
84+/86- has a charge of -2
50+/46- has a charge of +4
32+/36- has a charge of -4
55+/54- has a charge of +1
12+/10- has a charge of +2
Answer: C) a tube of cartilage (surrounding the notochord) with dorsal projections on both sides of the spinal cord.
Explanation:
The hagfish has a skeleton which do not consists of bones instead it consists of cartilage. The cartilage forms the part of the tentacles, tongue, nasopharyngeal duct, and soft palate. The tube of cartilage forms the surrounding of the notochord. It also has an attach with the dorsal projections on both sides of the spinal cord.
Answer:
The new life form will come in domain of bacteria.
Explanation
:
As we know that there are certain characteristic of bacterial cells which are listed below.
Composition of cell wall
:
Cell wall of bacteria is composed of carbohydrates protein complex known as peptidoglycan
.
Presence of organelles
:
Bacterial cells lack all organelles except ribosomes
Presence of fatty acids in plasma membrane
The plasma membrane of bacterial cell is composed of a lipid bilayer made up of phospholipid. It contains fatty acids
Conclusion
In microscopic studies of new organism all the characteristics features of bacteria have been found. So, this new life form belong to bacteria.
