Spermatogenesis is the process in witch spermatozoa are produced from male primordial germ cells by way of mitosis and meiosis.
Oogenesis is the process by which the female gametes, or ova, are created.
Answer:
B.
Explanation:
The role of light in photosynthesis provides energy for sugar to be created!
Answer:
All options are correct
Explanation:
Fossils are the remains of organisms (animals and plants) preserved in a rock. Scientists (geologists & palaebiologists) have used fossils to study the diversity of organisms in the past. This is based on their preserved morphological features. For example, several species of foraminifera has been identified in the rocks. Among them, some species are present today whereas others have become extinct.
Similarly, fossils are the indicators of past climate (e.g. temperature) as well. This means, if a specific species can survive at a particular temperature, its presence suggest that particular environment. For example, corals survive in tropical waters at specific depth and sunlight. So, if we find corals fossils, the cliamte of that particular age would be roughly the similar.
In the end, fossils can also provide evidence of orogeny (mountain building) process. These are typically plants fossils which cannot move and their remains are preserved in the folding rocks.
Stockmanship is a term more common in the beef cattle industry and can be defined as the art and science of handling cattle, or any other farm animal, properly.
