The answer is option B "declining number and variety of the species in an area." Biodiversity is a variety of life for example a ecosystem has many species which makes it a biodiversity. Now a loss of a biodiversity would be loosing a huge amount of species in that area or ecosystem which would mean the answer is option B.
Hope this helps.
Answer:

Explanation:
The distance to the Sun is 5,890,000,000,000. We need to write this distance in km.
A number can be written as
in scientific notation where x is a real no and y is any integer.
There are 10 zeros in the given number and also there are 12 digits after. It would mean that,

So, the distance in scientific notation is : 
C. 11 is your answer
1) integumentary
2) muscular
3) skeletal
4) nervous
5) circulatory
6) lymphatic
7) respiartory
8) endocrine
9) urinary/excretory
10) digestive
11) reproductive
hope this helps
If you are asking a true/false question then the answer is true.
The correct answer is lizard hope this helps