Answer: D) alpha: catabolism 
Explanation:
Glycogen is the storage form of carbohydrates in animals. The major sites of storage are liver and muscle.
Glucagon is a polypeptide hormone, it is secreted by the alpha cells of the pancreas. Low blood glucose causes glucagon secretion. When blood glucose level falls, liver glycogen is broken and help to maintain blood glucose level. 
Glucagon stimulates the enzyme glycogen phospholylase which breaks down glycogen into glucose units.
 
        
             
        
        
        
Neutrophil is the most likely identity of the observed leukocyte
<h3>What is 
Neutrophil ?</h3>
The most common type of granulocyte in humans are neutrophils, also known as neutrocytes or heterophils, which make up between 40% and 70% of all white blood cells. They are an essential part of the innate immune system, and they have different functions depending on the species.
The bone marrow-produced stem cells are differentiated into the neutrophil-killer and neutrophil-cager subpopulations. Due to their potential ability to access tissues that other cells or substances cannot, they have a limited lifespan and are very migratory. There are two different types of neutrophils: banded and segmented neutrophils (or bands). They belong to the same family of cells as basophils and eosinophils, which is known as PMNs.
To learn more about Neutrophil  from the given link:
brainly.com/question/3206784
#SPJ4
 
        
             
        
        
        
Answer:
D. it is impossible to partially inherit a genetic trait
Explanation:
 
        
             
        
        
        
Answer:
O.
Explanation:
There are different types of soils and it is made up of different layers or horizon such as A, B, C, O, R and E. Together all the horizons forming soil profile. Each horizon containing different soil types.
O horizon: Known as top layer of the soil which contains layer of organic matter which is about two inches thick, and made up of humus such as decomposing leaves, dark-colored, carbon rich matter, twigs and microbial biomass which is mixed with small grained minerals for the formation of aggregate structures.
 
        
             
        
        
        
Explanation:
The plants which use animal or insects as pollination vector produce less pollen compared to the wind-pollinated plants.
This could be due to the reason that the chances of pollination by wind are less than the pollination by the animal or vectors.
The chances of pollination in animal pollination are high as the animals to feed on the useful product of plant will go to the other plants but in wind pollination, the chances are less as it depends on the speed and direction of the wind.
Thus, wind-pollinated plants produce high number of pollens.