Answer:
A virus is a submicroscopic infectious agent that replicates only inside the living cells of an organism. Viruses infect all life forms, from animals and plants to microorganisms, including bacteria and archaea.
Answer:
Convergent evolution
Explanation:
Convergent evolution is a type of evolution of similar features and/or structures between organisms that are not phylogenetically related. This type of evolution is known to create analogous structures/organs that exhibit similar or the same functions but were not present in the last common ancestor of these taxa. An example of analogous structures (and therefore also of convergent evolution) are the wings of bats and of insects (e.g., butterflies). Conversely, divergent evolution is a type of evolution where species phylogenetically related, i.e., species that share a common ancestor, evolve and accumulate differences over time.
Gametes are reproductive cells that unite during sexual reproduction to form a new cell called a zygote. Sexual reproduction needs zygotes to reproduce that is why gametes are needed. Asexual reproduction doesn’t need gametes because there is only one parent and there is no fusion of gametes.
Explanation:
<h2>Answer:-</h2>
In case of Figure A and B,
- The work is being done perpendicular against the gravity. And we know that when work is done perpendicular to gravity, then zero work is done.
For Example:-
We also need to know that work done in circular motion is zero.
So, work done by electron to orbit around a proton is also zero.
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