The heart, blood and blood vessels work together to service the cells of the body. Using the network of arteries, veins and capillaries, blood carries carbon dioxide to the lungs and picks up oxygen. From the small intestine, the blood gathers food nutrients and delivers them to every cell.
Explanation:
Science is the study of the nature and behaviour of natural things and the knowledge that we obtain about them. ... A science is a particular branch of science such as physics, chemistry, or biology. Physics is the best example of a science which has developed strong, abstract theories.
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Answer:
are natural world,based on a body of fact that have been repeatedly confirmed through observation and experiment.
Explanation:
the are realiable account for the real world
Answer:
A: Human settlements block migration routes and decrease the land available.
Explanation:
Humans take away the land from the animals making it harder for animals to be able to live in the location and respond well
Question options:
A. 1.63
B. 0.47
C. 0.94
D. 1.15
Answer:
<u><em>A. 1.63</em></u>
Explanation:
To find the standard deviation,
we have the data:
6, 6, 10, 8, 10, 8
sum = 6 + 6 + 10 + 8 + 10 +8
= 48
mean = 48 / 6
= 8
Formula for standard deviation:
σ2 = Σ(xi - μ)2 / N
= Σ (6-8)2 +....+ (8-8)2 / 6
= 16 / 6
σ2= 2.67
σ = 
σ = 1.63
