In the excretory system, the waste materials are filtered from the blood. They are gotten rid off in order to maintain internal chemical homeostasis.
<h3>What is the Excretory System?</h3>
The excretory system can be described as a biological system that aids the body in removing unwanted materials from fluids of the body of organisms.
The main reason for the function of the excretory system is to maintain internal chemical homeostasis and prevent the body from damage.
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Answer:
14
Explanation:
For independent variables X and Y;
S.D(X - Y) is expanded as :
S.D(X) + S.D(Y)
If S.D(X) = 6 and S.D(Y) = 8 ; where, X and Y are independent ;
SD(X-Y) = SD(X) + SD(Y)
SD(X - Y) = 6 + 8
SD(X - Y) = 14
The mean of a dataset is the average of the dataset.
The mean of the sample in the third row is 2.2
The dataset is given as:
5 5 3 0 6 2 2 4 5 2 3 4 3 0 1 4 0 4 3 6
From the complete question, the samples in the third row are:
Sample: 3 4 3 0 1
The mean of a dataset is calculated using:

Where:
n = 5 i.e. the number of samples
So, we have:

Add the expressions in the numerator

Divide 11 by 5

Hence, the mean of the sample in the third row is 2.2
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Answer:
Firstly, one of the main goals of an anthropologist is to understand the fossil record of early humans and their ancestors as well as the archaeological record of more recent prehistoric societies. Secondly, to understand how we adapt to different environmental conditions and how we vary as a species.
More info - https://sosgurus.com/nature-and-goals-of-anthropology-sociology-and-political-science/