Answer:
C. break hydrogen bonds between complementary nucleotides; the job of DNA helicases is to separate the two strands of a DNA molecule to allow DNA pol III to do its job in synthesizing the complementary DNA strands.
Answer;
When we will travel south from a taiga into a temperate forest we will observe 1. Increased precipitation as in taiga the prevailing climatic conditions are still harsh with less rain fall where as in temperate forest precipitation ranges from about 70 to 150 cm annually. 2. Increase in temperature as taiga has long, severe winters and short, mild summers whereas the average temperature in temperate forest is around 50 degree Celsius. 3. Change towards hardwood (deciduous) trees as Taiga, forms an almost continuous belt of coniferous trees worldwide whereas Temperate or deciduous forests are dominated by broad-leaved hardwood trees
Answer:
The earth is a vast, complex system powered by two sources of energy: an internal source (the decay of radioactive elements in the geosphere, which generates geothermal heat) and an external source (the solar radiation received from the Sun); the vast majority of the energy in the earth system comes from the Sun.
Everything in Earth's system can be placed into one of four major subsystems: land, water, living things, or air. These four subsystems are called "spheres." Specifically, they are the "lithosphere" (land), "hydrosphere" (water), "biosphere" (living things), and "atmosphere" (air).
Explanation:
The leaching of nitrates into terrestrial ecosystems.
