Invasive species might overpopulate in the area which might cause the native species to be threatened, have to leave, or decrease in amount.
In an Immune disorder, our own defensive cells, get affected. In that situation, they harm us instead of protect us from any other foreign substance (pathogen), that's why it is so dangerous.
Hope this helps!
Ernest would be swimming at 3.25 units on week 10
The explicit formula is given as:

Also, we have the following parameters
-- the initial distance
--- the difference between concurrent distances
In week 10, the value of n is 10.
Next, substitute 10 for n in the explicit formula 
So, we have:

Subtract 1 from 10

Multiply 9 by 0.25

Add 1.0 and 2.25

Hence, Ernest would be swimming at 3.25 units on week 10
Read more about arithmetic sequence at:
brainly.com/question/6561461
This happens because of the clouds in the sky that cover a portion of the moon,
Muscles have their origins (also known as heads) and insertions. Those are places where the muscles are anchored.
A word biceps is made of two Latin words: bi - two and ceps - head. So, biceps is two-headed muscles. It has two origins: coracoid process of the scapula and supraglenoid tubercle.
Similarly, a word triceps is made of three Latin words: tri - three and ceps - head. So, triceps is three-headed muscles. It has three origins: infraglenoid tubercle of scapula, above the radial sulcus, and below the radial sulcus.