Spores are the structure which are present in both nonvascular plants and seedless vascular plants in common. Thus, the correct option is C.
Vascular plants are also called tracheophytes. These plants form a large group of land plants which have lignified tissues for the conduction of water and minerals throughout the plant and a specialized non-lignified tissue for the conduction of products of photosynthesis.
The seedless vascular plants contain vascular tissue but do not produce flowers or seeds. In seedless vascular plants, like ferns and horsetails, they reproduce through haploid, unicellular spores instead of seeds.
Non-vascular plants do not have any vascular tissues. Non-vascular plants do not possess roots, stems, or leaves which were present in the vascular plants.
Therefore, the correct option is C.
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Answer: Option A.
The new knowledge is use to reevaluate the theory.
Scientific method is the method use to get knowledge about some things and it's purpose is to determine whether the observation agree with or conflict with the hypothesis.
When a scientific experiments generate new knowledge that is different from the existing theory, it is use to reevaluate the theory. Scientific method or theory are based on predictions.
Answer: Only men have them
Explanation: just got it right on A p E x
Because: If a river is dammed then there is little to no flow going downstream. This will effect the life downstream and also change its conditions.