The answer is c since a coccus is any spherical or roughly spherical bacterium.
The role of a pioneer species in primary succession is to normalize the habitat by making the topsoil more stable and fertile. Explanation; -In primary succession pioneer species like lichen, algae and fungi as well as other abiotic factors like wind and water start to normalize the habitat.
Increase surface area for the purpose of absorption
These series of stages are known as the adoption process.
Normally when a product comes into the market the customer does not jump to it
the first time. Firstly the customer is always hesitant to go for the new
product. They try to learn in details everything about the product. After
learning about the product the customers give it a try to compare it with the
product they were using before. Then only the customer decides whether or not
to purchase the product, if it is better than the product they were using
previously.
