Answer:
a. This is actually a case of frequency-dependent selection. With too many cheaters in a population, the fruiting body's stalk is not built well, and all individuals have lower fitness.
Explanation:
Frequency dependent selection is a process in evolution whereby the 
a gene, genotype or phenotype varies depend on the percentage of that gene, genotype or phenotype that is present in the population.
There are two types of frequency dependent selection:
a. Positive frequency dependent selection.
b. Negative frequency dependent selection.
 
        
             
        
        
        
Answer:
shale, limestone and sandstone.
Explanation:
 
        
                    
             
        
        
        
returns freshwater to the earth
occurs after condensation
is roughly equal to the amount of evaporation
Explanation:
Precipitation returns fresh water to the earth, occurs after condensation and is roughly equal to the amount of evaporation. 
The process of precipitation is a key component of the hydrologic cycle. 
- In the hydrologic cycle, precipitation follows condensation of water vapor in the atmosphere. 
- Precipitation often takes the form of rainfall and snow. 
- It is any product of condensation of water in the atmosphere that falls back under the influence of gravity. 
- In the hydrologic cycle, water leaves the surface of the earth in form of vapor as result of evaporation. 
- Most times , the amount of evaporation is roughly equal to that of precipitation. 
learn more: 
Biogeochemical cycle brainly.com/question/3509510
#learnwithBrainly
 
        
             
        
        
        
During Digestion the "food" becomes something called Chyme. Its a semi-solid substance and then the leftovers that aren't used turn into feces. <span />
        
             
        
        
        
The principle fuel used as a petrol substitute for road transport vehicles is bioethanol. Bioethanol fuel is mainly produced by the sugar fermentation process, although it can also be manufactured by the chemical process of reacting ethylene with steam.
Basically, a plant can be considered as bioethanol becacuse it is a sugar fuel for animals. Animals consume plants for fuel to survive.