Khan Academy is great! Also, Alison (it's a website) has some free courses as well.
Because these non native species can cause competition for the same food source as the native species thus making it harder for the native species to survive. Also the non native species could see the native species as food causing them to die out. As well as introducing new diseases that these native species don’t know how to defend themselves from
Answer:
1. Today instead of rotating upright, The earth's axis is tilted 23.5 degrees. The angle varies a little over time, but the gravitational pull of the moon prevents it from shifting by more than a degree so. This tilt is what gives us seasons.
2.The cooling effects of more indirect sunlight cause autumn and winter. Because of the earth's approximately 23.5° tilt, the season in the northern and southern hemispheres reversed, about six months apart from each other.
Answer:
B. Savanna
Explanation:
Savannas are a transitional biome, not really a forest and not really a desert – just somewhere in between. This habitat is home to many different species of plants and animals around the world, and in Africa it is home to the largest land mammal in the world – the African elephant.
Hope this helped, Have a Great Day!!
