That bridge is called "pilus" provided by F+ bacteria.
Answer:
The correct answer is - d. the idea that substances can produce germs on their own.
Explanation:
Spontaneous generation is an obsolete theory or idea that supports the production of living things and substances from non-living substances and things.
This purpose is that the living creatures could arise from nonliving matter. In microbiology, it is an idea that says that substances can produce germs on their own even if the substances are not similar.
A mineral is a naturally occurring, inorganic compound with a unique chemical structure and physical properties. A rock is a solid, stony mass composed of a combination of minerals or other organic compounds. For example, quartz and feldspars are minerals, but when formed together, they make a rock, granite.
The clear epidermal cells exist in a single layer and do not contain chloroplasts, because the onionfruiting body (bulb) is used for storing energy, not photosynthesis. Each plantcell has a cell wall, cell membrane, cytoplasm, nucleus, and a large vacuole.
