Answer:
Radioactive decay
Explanation:
Radioactive decay refers to the natural breakdown of unstable elements or nucleus which lead to the release of energy or particles like alpha particles or beta particles.
It result in the formation of layers in protoplanets.
The four different types of radioactive decay are,
Alpha particles
Beta particles
Gamma decay
Positron emissions.
Answer:
The correct answer is c. redundant organs present in an organism, which have been functional in the organism’s ancestors.
Vestigial organ are those which are retained in the evolution however lost their original functions due to change living habits or surroundings of the organisms.
They serve as the evidence of evolution and help in evolutionary studies.
For example, vermiform appendix, nictating membrane of eye, ear muscle etc are vestigial organs found in humans.
Answer:
A
Explanation:
It "maps" the chromosome, showing the relative location of genomes
Answer:
Option (a), (c) and (d).
Explanation:
The prokaryotes lacks the nucleus and the membrane bound organelles. Eukaryotes have well defined nucleus and the endomembrane system is present in eukaryotes.
The main site of the oxidative phosphorylation is the mitochondria in case of eukaryotes. The mitochondria are known as semi autonomous organelle as it contains its genetic material. As the oxidative phosphorylation occurs in mitochondria, this is the main site of ATP production. The mitochondria is a membrane bound organelle and absent in case of prokaryotes.
Thus, the correct answer is option (a), (c) and (d).