There Are Four Significant Ecological Zones That Make Up This

question 21

Multiple Choice

There are four significant ecological zones that make up this region. They include the Tundra, taiga, steppe, and forest. Each one has subzone represented in figure 6.2. (in the text) Which of the following statements is true?

• A) The taiga is a system of watersheds.
• B) The steppe landscape is a challenge for human movement.
• C) The tundra is very cold and too harsh for trees.
• D) The forest is full of old growth that is difficult to harvest.

---

Definitions:

CRISPR

Clusters of Regularly Interspersed Palindromic Repeats; a type of locus in the DNA of prokaryotes containing repeated sequences that code for guide RNAs that direct Cas endonuclease to cut certain DNA sequences; a prokaryotic defense against bacteriophages used in biotechnology as a basis for programmable editing of DNA in living cells.

Genetic Material

DNA (deoxyribonucleic acid) or RNA (ribonucleic acid) molecules holding genetic instructions used in the growth, development, functioning, and reproduction of all known living organisms and many viruses.

Morpholino

Synthetic molecules used to modify gene expression, particularly in the study of gene function in developmental biology.

Species

According to the biological species concept, one or more populations whose members are capable of interbreeding in nature to produce fertile offspring and do not interbreed with members of other species. Compare with phylogenetic species concept.