Answer:
The correct answer is option C, and D.
Explanation:
Sporangia of the ferns are the structures that produce or release the spores that are reproductive cells that help in the plant to reproduction. Sporangia in ferns are present in the clusters called sori in some of the leaves of the ferns.
Gymnosperms also produce the spores with the help of receptacles that present on the sporophylls that combined to form cones that have cone scales that have sporangia that produce pollen. The other type of cones found on gymnosperms is ovulate cones that produce megaspore that ultimately develop into ovules.
Thus, the correct answer is option C
Answer:
The magnetic field of Earth is caused by currents of electricity that flow in the molten core. These currents are hundreds of miles wide and flow at thousands of miles per hour as the earth rotates. The powerful magnetic field passes out through the core of the earth, passes through the crust and enters space.
<span>(3) widespread use of pesticides</span>
Answer:
Structuralism and Functionalism
Explanation:
Structuralism is widely regarded as the first school of thought in psychology. This outlook focused on breaking down mental processes into the most basic components. Major thinkers associated with structuralism include Wilhelm Wundt and Edward Titchener.
