<h3><u>Answer;</u></h3>
Rainfall
<u>Rainfall</u> is the greatest influence on soil formation.
<h3><u>Explanation; </u></h3>
- <u><em>Soil formation results from weathering of rocks or materials deposited by erosion from rivers and wind.</em></u>
- Soil differs from one place to another due to the influence by factors such as climate, topography, organisms etc.
- <em><u>The influence from climate is due to temperature and rainfall. High temperatures and rainfall increase the degree of weathering and thus the extent of soil formation</u></em>.
- Among the factors influencing soil formation climate has the greatest influence.
<span>D) Asexual reproduction is advantageous over sexual reproduction because it decreases the snails' need for social interaction.</span>
Answer:
Frequency of recessive allele 
Explanation:
Given -
Total Population size = 919
Number of individual with recessive genotype = 341
Frequency of recessive genotype
Frequency of recessive allele 
Hence, option C is correct
Answer:
Lipid soluble hormones:
Lipid soluble hormones are hydrophobic in nature and contains hydrophobic signals. Their receptors are present inside the nucleus and some are limited to cytosol as well. The binding of the receptor to its ligand stimulates the synthesis of new protein. The binding of hormone response element binds to the enhancer region of DNA. Example: steroid hormones and thyroid hormones.
Water soluble hormones:
Water soluble hormones are hydrophilic in nature and contains hydrophilic signals. Their receptors are present on the cell membrane . The binding of the receptor to its ligand stimulates the signaling cascades mechanism. The binding of hormone to its receptor results in the activation of protein kinase and secondary messenger.
