Answer:
The relationship between environment, variation and selection lay the foundation for natural selection and evolution.
Genetic variations are present among species due to number of reasons like recombination or crossing over during meiosis, mutations, random fertilization etc. These factors bring changes among the members of a species. Some of the species become better adapted to survive in a particular environment whereas some are not better adapted and become extinct over a period of time. The environment selects the organisms that are best adapted to survive and hence lead to variations.
Answer:
Degenerate.
Explanation:
The genetic code has following properties -
- It is a triplet codon.
- It is non-overlapping.
- It is comma-less.
- It is non-ambiguous.
- It is degenerate.
- It has stop and start codons.
Out of these properties the Property of Degeneracy has been used in the situation mentioned in the question. Due to degeneracy of the genetic code, more than one codons can code for a single amino acid. Property of degeneracy in the code minimizes the mutational lethality.
Microtubules are one of the cytoskeletal filament systems in eukaryotic cells. The microtubule cytoskeleton is involved in the transport of material within cells, carried out by motor proteins that move on the surface of the microtubule.
Hope this helps you!
Answer:
erosion and a, weatheri g and b
To control the activities of a cell, the control center.
by the tiny holes i don't know what you mean but there is ribosomes and lysosomes.
hoped i helped:P
