The example that shows an organism maintaining homeostasis is b. a person sweating on a hot day. Homeostasis is an organism's ability to maintain a stable internal environment irrespective of the external environment. When a person's body overheats, the body releases water as perspiration or sweat to cool itself down. Another example is when a person gets cold, the hair on his arms and legs, stand up straight - to trap air circulating round his body, and heat it up. 
        
             
        
        
        
Answer:
The skin helps in the cooling of the body,when there is exess temperature in the body,the skin reduce it and changes it in the form of sweat and also skin acts as a passage of the sweats.
 
        
             
        
        
        
Answer:
Explanation:
Hardy Weinberg equation is presented below and describes that in a population the frequency of alleles ad genotypes will remain static or the same in the absence of evolutionary disturbances such as mutation, migration ( gene flow), natural selection and with the population large and random mating
p² +2pq + q²
where p represents the frequency of the dominant alleles
q represent the frequency of the recessive alleles
p² represent the frequency of the dominant homozygous genotype 
q² represent the frequency of the recessive homozygous genotype
2pq represent the frequency of the heterozygous genotype
q² also represent the frequency of the recessive phenotype 
(p² + 2pq) represent the frequency of the dominant phenotype
 
        
                    
             
        
        
        
Answer:
I have matched them below
Explanation:
each of the columns have been properly matched below:
1. attaches bones to bones and muscles to bones = d. dense regular connective tissue
2. insulates against heat loss = a. adipose connective tissue 
3. forms the fibrous joint capsule = 
c. dense irregular connective tissue
4. makes up the intervertebral discs = g. fibrocartilage
5. composes basement membranes; a soft packaging tissue with a jellylike matrix = b. areolar connective tissue 
6. forms the larynx, the costal cartilages of the ribs, and the embryonic skeleton = h. hyaline cartilage 
7. provides a flexible framework for the external ear = e. elastic cartilage
8. provides levers for muscles to act on = i. osseous tissue
9. forms the walls of large arteries = elastic connective tissue