Population Density
The population density is 3 per square kilometers
Explanation:
Population density is defined as population divided by total land area or water volume, as appropriate. An Arizona desert measures 50 square kilometers. A botanist recorded that there are 150 Saguaro cactus plants within the desert boundaries.
So the population density will be 150 divided by 50 which will be 3 per square kilometers
Hence the population density is 3 per square kilometers
I'll answer it to the best of my ability if you tell me the options > <
Answer:
Fossil records provide evidence of an increase in animal species at the same time that atmospheric oxygen levels increased.
Explanation:
A huge diversification among animal species occurred with the increase in the levels of atmospheric oxygen. The reason why the number of species increased drastically was that a whole new world opened up, the land. The land was open for exploitation and taking over, with every single niche free, so animals diversified and filled in pretty much all of the niches. The fossil records give us clues when this happened, as from only microorganisms there is a sharp rise in complex animals, coinciding with the increase of oxygen levels.
If it wasn't for the increase of atmospheric oxygen though this wouldn't have been possible. The oxygen in the atmosphere enabled animals to breathe on land. Also, it cooled off the global temperatures which were too high before the increase of atmospheric oxygen, making them suitable for life. And last but not least, the atmospheric oxygen resulted in the formation of the ozone layer, a layer that started to act as protection from the UV rays.
Nucleus I am pretty sure.
Answer:
Since the apple is food, animals eat the apple( seed and all) and take a poop in a different area.
Explanation:
Since apple seeds don’t digest easy, it has fresh, fertile ground to grow in.
