Answer:
78 percent
Explanation:
The air in Earth's atmosphere is made up of approximately 78 percent nitrogen and 21 percent oxygen.
Answer:
Explanation:
the two populations will become different species over time due to accumulated mutations occuring in both populations
The organs listed above are all part of the excretory system except for the spleen and the <span>esophagus.
</span><span>The kidneys act to filter our blood, and remove wastes, which eventually pass out of us through urine,
The bladder acts to collect and store urine until it can be emptied through urination.
The ureter runs from the kidneys to the bladder whereas the urethra runs from the bladder to exit the body.</span>
I believe it’s cover crops but i could be wrong hope it helps
Answer:Primary succession occurs on land that is new and has never had a flora and fauna example: glacier retreats, lava flows. Secondary succession occurs on land that has been cleared example: by fire, of flora and fauna, but which still has viable seeds and spores in the soil.
