I believe its when you <span>silencing one of the two X chromosomes in female cells...
Hope I helped
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Answer:
Any letter over H.
Explanation:
Assuming no overturning took place, all fossils that are above the (d i k e) are younger than the (d i k e) as the fossils that are above the (d i k e) are still visible.
 
        
             
        
        
        
Answer:
Both statements are true
Explanation:
Many small tree saplings are competing for sunlight on the forest floor because tree saplings in forest floors are often deprived of adequate light as a result of the shade created by bigger trees in the forest. <em>Hence, the saplings jostle for light in order to effectively carry out light-requiring physiological activities such as photosynthesis and chlorophyll synthesis.</em>
The West Nile virus a virus that <em>generally affects the central nervous systems of birds - the primary host. It is transmitted from one bird to another through contact and by a vector - the mosquito</em>. The virus is also capable of being contracted by humans where it causes fatal neurological disorders.
 
        
             
        
        
        
Primary consumers enrich the soil,which help plants to grow and create more food energy for all of us.
        
             
        
        
        
The right answer is climate change.
Amphibians do not have the possibility of producing heat. Their activity depends on the environmental temperature and its fluctuations. For example, an average temperature increase of 1 ° C is likely to increase the metabolic expenditure of ectotherms by at least 10 to 30%. Global warming has or will have a significant impact on populations and their ability to adapt according to the evolutionary history of species.