Answer:
I think the answers probably b
 
        
             
        
        
        
Answer:
Abiotic factors, such as temperature, water, sunlight amounts, and regional terrain, directly effect biotic factors. Biotic factors are the living components of an ecosystem which include primary producers, consumers, and dexomposers.
Abiotic factors can effect organisms in many ways. Hey can effect primary producers negatively if there is too little sun, water, or nutrients in the soil. However, if there is too much of any one of these, they can still be negatively effected. With primary producers, it’s all about balance.
while consumers do not directly require the above conditions, they do rely on the plants and animals that feed on said plants to survive. If the plants do not have correct nutrients, they will not either. As far as terrain goes, they adapt to better cope with the environment. If they live in an aquatic enviromment for example, they acquire ways to more efficiently move through the water to look for food.
Decomposers rely on the remains of dead plants and animals in order to survive. They feed off of dead matter and the waste gets deposited into the soil. This in turn helps to give the soil its nutrients, and so the cycle continues.
Everything in nature is reliant on each other. This delicate balancing act is both beautiful and so very fragile. If one organism is removed, the entire ecosystem could suffer. This is why it is so critical to protect the environment we share with every other living creature on this earth.
 
        
             
        
        
        
Answer:
its passive transport
Explanation:
The sodium-potassium pump sets the membrane potential of the neuron by keeping the concentrations of Na+ and K+ at constant disequilibrium.
 
        
                    
             
        
        
        
Answer:
they are evolutionary neutral
Explanation:
Transposons are genetic mobile elements that move into the genome by means of cut-paste and copy-paste mechanisms. In consequence, transposons are known to produce mutations in the inserted genomic sequences.
Non-coding DNA regions have been generally assumed to be evolutionary neutral, it means that they might resist genetic polymorphisms (such as, for example, those caused by the insertion of transposon elements) and don't have direct effects on the phenotype of the organism. However, it is important to note that recent evidence supports the idea that noncoding sequences play important regulatory roles, thereby mutations in these genomic regions may have a deleterious effect on the organism.
 
        
             
        
        
        
Answer:
These example represent the category of the carbohydrates.
Explanation:
Carbohydrates can  be defined as poly hydroxy aldehyde or polyhydroxy ketone.There are many types of carbohydrates based on the number of sugar residue that they contain such as
1 Mono saccharide they are simple sugars which consist of one sugar residue such as glucose,fructose, galactose, xylose, arabinose, mannose 
2 Di saccharides they consist of 2 monosaccharide residues linked together by glycosidic linkage such as sucrose consist of glucose and fructose linked together by β-2,1-glycosidic linkage.Maltose consist of 2  glucose sub units linked together by α-1,4-glycosidic linkage.
3 Poly saccharide they are complex sugar consist of more than 10 mono saccharide subunits linked with each other by glycocydic linkage.For example strarch the storage polysaccharide in plant consist several glucose sub units linked together α-1,4-glycosidic  linkage.Cellulose consist of glucose sub units linked with eachother by β-1,4-glycosidic linkage.