Answer: A Homologous artificial insemination 
Explanation:
Homologous artificial inseminationis a form of artificial insemination. It is the process of injecting seminal fluid of a spouse into the uterus of the woman to induce pregnancy. The semen obtained through masturbation is prepared in the laboratory and then inserted into the female’s uterus through the cervix using a thin, flexible plastic tube called a catheter. The pregnancy resulting from homologous artificial insemination is not different from a pregnancy achieved by sexual intercourse.
 
        
             
        
        
        
<h2>
Answer:</h2>
<h3>
<em>OPTION</em><em> </em><em>B</em><em> </em><em>IS</em><em> </em><em>THE</em><em> </em><em>CORRECT</em><em> </em><em>ANSWER</em></h3>
<em> </em>
<h2>
Explanation:</h2>
<h3>Nucleocytoplasmic exchange of materials</h3>
<h3>In eukaryotic cells, the nucleus is bound by a double membrane or nuclear envelope. It possesses openings at certain intervals called as 'nuclear pore'. Nuclear pores are large protein complexes regulates the exchange of material between nucleus and cytoplasm, i.e., nucleo-cytoplasmic exchange of materials. </h3><h3 />
 
        
        
        
The purpose of a dichotomous key is to identify organisms
Explanation:
A dichotomous key is a kind of a tool that guides to classify and identify different organisms. 
This key as the name indicates - dichotomous- consists of two parts or options to identify a species.
The method utilizes a series of questions/answers with two possible outcomes.
Taxonomically, a dichotomous key is used to basically identify a species or an organism by its scientific name.
All of the natural elements like the plants, animals, birds, etc are identified using this key. 
Types of dichotomous key includes nested, linked, branching tree etc.
 
        
             
        
        
        
Answer:
DNA is a double helix and has base-pairing between nucleotides through the use of hydrogen bonds
Explanation:
The nucleotides are made up of a nitrogen base [base-pairing adenine (A) with thymine (T) and guanine (G) with cytosine (C)], a phosphate, and a deoxyribose (sugar); all of which are held together by hydrogen bonds. The binding allows the DNA to have a sugar-phosphate backbone connected with hydrogen bonds because they are firm but also easy to break (for DNA transcription)
 
        
             
        
        
        
A limit on certain fishes (ex: limit 100 fish per person, has to between 3-5 in, these are just examples)
protection of habitats
protection of certain species (if caught, must return, cannot keep, endangered species)
hope this helps