Can someone please help me compare and contrast the tundra and the taiga biomes?
2006-12-11 06:01:28 · 2 answers · asked by ilovepinkpolos 1 in Environment
THE TUNDRA... is very cold and dry; animals: snowy owls, etc. plants: lichens----The TUndra is the 2nd driest
2006-12-11 08:30:17 · answer #1 · answered by Upon this rock 3 · 0⤊ 0⤋
46) Basically, the cell communication structure becomes altered and the cell continuously replicates. Cells go through a cycle of replication that is normally regulated by a tumor-supressor gene (kind of like a red light for cells). During cancer, that part of the regulatory system is deactivated. What this means is cells can continuously replicated (kind of like a traffic jam). 48) Mutation is a change in the original DNA sequence of a gene. Mutations come in different forms such as substitution of a nucleotide with another one, deletion of single or a group of nucleotides, insertion of one or more unnecessary nucleotides and so on. Mutations could potentially change the correct codes of the DNA and consequently result in a defective protein structure.
2016-05-23 05:54:25 · answer #2 · answered by Anonymous · 0⤊ 0⤋