Answer:
option d is correct. the existence of land bridges between continents.
Explanation:
landland bridge theory which was used to explain why species would end up continents over, such as mammoth travelling to North America, thisthis theory was based on the idea that water eventually Rose to cover these bridges rather than the at having individual plates that moved away from each other.
Answer:
Explanation: by interacting with the excretory system
Answer;
Chlorophyll
Chlorophyll is the green pigment found in plants traps energy from the sun for photosynthesis.
Explanation;
-Green plants requires food for their day to day activities, thus they use the process of photosynthesis to make their own food, which they use to generate energy or store for the future use in form of starch.
-Chlorophyll a pigment that gives plants their green color is vital during the process of photosynthesis. During the first phase of photosynthesis light dependent stage), chlorophyll traps sunlight which is used to split up water molecules to oxygen atoms and hydrogen ions, a process called photolysis.
Answer: hope this helps :)
The motion of air mass motion is usually based upon the air flow in the upper atmosphere. As the jet stream changes intensity and position, it affects the motion and strength of air masses. Where air masses converge, they form boundaries called "fronts".
3-D view of a cold front.
Fronts are identified by change of temperature based upon their motion. With a cold front, a colder air mass is replacing a warmer air mass. A warm front is the opposite affect in that warm air replaces cold air. There is also a stationary front, which, as the name implies, means the boundary between two air masses does not move.
The motion of air masses also affects where a good portion of precipitation occurs. The air of cold air masses is more dense than warmer air masses. Therefore, as these cold air masses move, the dense air undercuts the warmer air masses forcing the warm air up and over the colder air causing it to rise into the atmosphere.
So, fronts just don't appear at the surface of the earth, they have a vertical structure or slope to them as well. Warm fronts typically have a gentle slope so the air rising along
