The question is incomplete as it does not have the options which are:
A. The threefold change happened in one concentrated burst.
B. The change was not consistent in direction, but happened in multiple bursts concentrated at each speciation event.
C. There was consistent directional selection toward a larger brain all along the lineage between the two species.
D. None of the above.
Answer:
Option-B
Explanation:
The hominids evolved with time and the known hominid in modern time is the Homo sapiens or modern human.
The Homo sapiens like other species could have evolved from the older species through speciation and studies suggest that one of the major factors of human evolution is the size of the brain.
Two possibilities could explain the size of the brain that it could have evolved slowly with time called the gradual equilibrium or in bursts concentrated at each speciation event.
Since the punctuated equilibrium takes place in bursts until the species reach stasis is the most applicable condition for punctuated equilibrium to happen therefore Option-B is the correct answer.
Your answer is B biological catalyst that regulates chemical reaction in the body
Answer:
The correct answer is lysosomes
Explanation:
Tay-Sachs disease is a genetic metabolic disorder in which a lipid called GM2 ganglioside builds in the brain which results in spasticity and death in childhood.
This disease is also known as lysosomal storage disease. Lysosomes are the major organelle that contains enzymes to breakdown molecules. In Tay-Sachs disease deficiency of hexosaminidase A occurs in lysosomes and this enzyme is needed to breakdown fats.
So due to this deficiency, it results in the accumulation of fats in the brain and spinal cord causing Tay-Sachs disease.
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Answer:
RNA Polymerase is the enzyme responsible for the synthesis of RNA
Explanation:
Ribonucleic acid [RNA] is synthesized from DNA in a process known as transcription. this process is facilitated by RNA polymerase enzyme. The corresponding RNA produced is complementary to the parent DNA
While DNA is usually double-stranded, RNA is single-stranded and they are synthesized from each strand of DNA.
RNA polymerase is responsible for unwinding the double strands of DNA and copying the information into the newly formed RNA strand.
To learn more about RNA polymerase, check here
https://brainly.in/question/41898645
