Answer:
through the spread of bacteria
Explanation:
 
        
                    
             
        
        
        
<span>The answer is </span><span>C. haploid, and are made when haploid spores undergo mitosis. </span><span>
Pollen grains are male gametophytes in plants. In pollen sacs of an anther, spore mother cells, which is diploid, undergo meiosis and form four haploid spores. These haploid spores undergo mitosis and form haploid pollen grains.
Through the process of elimination:
- Pollen grains are haploid, so choices A. and C. are eliminated.
- In ovules, female gametes are produced, not male gametes, so, choice D. is also eliminated.</span>
        
             
        
        
        
Answer:
Hotter temperatures and moving climate examples can decline air quality, which can prompt asthma assaults and other respiratory and cardiovascular wellbeing impacts. Out of control fires, which are required to keep on expanding in number and seriousness as the atmosphere changes, make smoke and other undesirable air pollutants.
Explanation:
 
        
             
        
        
        
Detritivores role is to consume dead animals (decompose). Thus it is B