If you’re trying to figure out if it’s true or false it’s true
        
                    
             
        
        
        
I think the correct answer would be A. The yolk sac becomes the placenta. It is membranous sac that is attached to the embryo. It provides all the nutrition and the blood cells needed by the embryo. It is also called the umbilical vesicle.
        
             
        
        
        
Answer:
These pertain to characteristics of an Eukaryotic cell 
Explanation:
- Nucleic acids
- Nucleolus 
- Rough endoplasmic reticulum 
- Smooth endoplasmid reticulum 
- Golgi apparatus 
- Vesicle 
- Mitochondria 
- Lysosomes
- Peroxisomes
- Nucleoporin
- Cytoskeleton 
 
        
             
        
        
        
Glucose, sucrose or lactose.
        
             
        
        
        
<h2>Specialists and Generalists </h2>
Explanation:
Niche is the role played by an organism that how it lives in an environment
Specialists
- Species that have narrow niches are called specialists and this type of niche is called realized niche
- It is narrow because of the presence of ecological barriers and is the space where a species actually lives
Generalists
- Species that have broad niche are called generalists and this type of niche is called fundamental niche
- It is larger than the realized niche due to absence of ecological barriers 
- It represents all the environmental conditions where a species is able to live or can live