The answer is a because I think so
DNA ligase <span>s responsible for creating the covalent bonds that connect the sugar phosphate backbone of the new DNA molecules</span>
Answer: Weathering constantly changes the earth's surface by wearing away exposed surfaces, smoothing rough areas of rocks and causing rock materials to break down in time. Weathering creates soil and happens due to ice, wind, water, salt, acids and changes in temperature Gravity shapes the Earth's surface by moving weathered material from a higher place to a lower one.
Answer: D) directional selection
Explanation:
The characteristics of the poppies shifted in response to the changed environment.
Solar flares are very dangerous to living organisms they produce it produces high energy particles but we are protected by Earth's magnetic field and atmosphere because of its can sometime disturb radio waves because it effects the ionosphere but the flare is stopped by the atmosphere.