Answer:
3
Explanation:
Look at the shape of the region, you see u-shaped curving of the folds in the terrian. When looking at the depressions present in the area, it closely resmbles the pattern of 3 compared to the other ones. 2 happens in deltas, 1 happens in craters, and 4 happens near volcanoes and such.
During Asexual reproduction, in the interior side of Sporangium spores are made by mold and spreading of more mold occurs and Sporangium will be breaking during the time, when the spores are ready for leaving out.
<u>Explanation:</u>
The formation of spores is the asexual reproduction method that occurs in fungi which is a non flowering plant and bacteria. Many number of smaller and tiny spores that are tough, round shaped and microscopic, are produced by parent plants that has the ability to grow into many newer plants in asexual reproduction method only under certain conditions. Multiple number of spores in the sacs of Rhizopus that is called as sporangia. Te structure of these sporangia is like a knob and these are are present at the top of hyphae which is like a thread.
When these sporangia bursts, the spores are scattered by rain, wind or insects and under suitable conditions develop into a new Rhizopus plant, when they fall on a suitable substance like bread. When a break occurs in these sporangia, scattering of these spores occurs and these develop into a new plant under some suitable conditions, when these falls on a substance say for an instance bread.
The correct answer would be C. They combine to form atoms.
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Answer:
Answer is option (2) and (4).
Prokaryotes that obtain both energy and carbon as they decomposes dead organisms - heterotroph and chemotroph.
Explanation:
(1) Autotrophs or Producers - Organisms that produce their own food and get the energy to make food from inorganic sources or sunlight. They are the base level of the energy pyramid of an ecosystem. The existence of all other organisms depends on autotrophs as they provide fuel for others. Examples of autotrophs are green algae, all plants, photosynthetic bacteria, etc.
(2) Heterotrophs or Consumers - Organisms that consume autotrophs or other heterotrophs since they cannot produce their own food. They absorb nutrition from other organic carbon sources such as plant or animal matter. The examples of heterotrophs are fungi, all animals, many protists and bacteria.
(3) Phototrophs - Organisms that capture photons from light and convert it to chemical energy to carry out different cellular processes.
- Photoautotrophs (holophytic organisms) are autotrophs that carry out photosynthesis in which carbon dioxide and water are converted into organic compounds (glucose) using energy from sunlight. Plants, algae, photosynthetic bacteria are examples.
- Photoheterotrophs depend on sunlight for their energy and produce ATP through photophosphorylation. Their source of carbon is organic compounds such as carbohydrates, fatty acids, etc obtained from the environment and do not rely on carbon dioxide. Examples include green non-sulfur bacteria, purple non-sulfur bacteria, heliobacteria, etc.
(4) Chemotrophs - Organisms that obtain energy by breaking down or oxidation of organic or inorganic molecules such as ammonia, carbohydrates, molecular hydrogen, sulfur, hydrogen sulfide, ferrous iron, etc through chemosynthesis.
- Chemoautotrophs synthesize organic compounds from carbon dioxide using the energy derived from chemical reactions. Most of them are found in deep water environments that receive no sunlight. Cyanobacteria, sulfur-oxidizing bacteria, iron-oxidizing bacteria, nitrogen-fixing bacteria, etc are examples.
- Chemoheterotroph uses inorganic or organic energy sources as they can not synthesize their own organic compounds. Chemolithoheterotroph uses inorganic energy sources (sulfur, ferrous iron, etc) and chemoorganoheterotroph uses organic energy sources (carbohydrates, proteins, lipids, etc). Examples of chemoheterotrophs include most fungi and animals.
Compare and contrast two mechanisms for transcriptional termination in bacteria.
(rho)p-dependent termination: requires rut (rho utilization site), rho protein binds, moves towards 3' end, DNA encodes GC rich for stem loop, RNApoly pauses, rho protein catches up and separates RNA-DNA hybrid
(rho)p-independent termination: Uracil-rich sequence causes RNApoly to pause, stabilized by NusA near open complex RNA exit, UA bonds to weak to hold, DNA-RNA hybrid dissociates AKA intrinsic termination
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