Answer:Metals are lustrous, malleable, ductile, good conductors of heat and electricity. Other properties include: ... Hardness: All metals are hard except sodium and potassium, which are soft and can be cut with a knife. Valency: Metals typically have 1 to 3 electrons in the outermost shell of their atoms.
Explanation:
The correct answer is - limestone.
On the image, it seems that we have a representation of rock formations in a cave. They are evidently weathering. According to the manifestation of the weathering, the color of the rocks, and that it is most probably a cave, the chances are mostly likely that it is a limestone.
The weathering appears as a result of the water. The limestone is a sedimentary type of rock, thus it doesn't have strong structure. The water is able to gradually penetrate through it, making holes in it, and little by little weather it. In this way we have the formation of the water reservoirs, springs, cave systems.
To create bacteria that produce human insulin scientists insert the human gene of interest into the bacterial plasmid. This is a common method when we want to produce human insulin and is often used in genetic research.
Answer:
Yes, there was both primary and secondary succession in the movie ‘Finding Nemo’.
Explanation:
- ‘Finding Nemo’ was the Pixar movie released in 2003 that shows the true depiction of life below ocean.
- In the movie, though his all siblings were eaten by barracuda but Nemo managed to escape.
- This is the example of primary succession which is the type of succession that happens when a particular area experiences a disturbance that is severe so that no original species survive or remain in the area, either they are eliminated or they migrate.
Answer:
(a)-True
Explanation:
Chemotrophic or chemosynthetic organisms are those capable of using reduced inorganic compounds as substrates to obtain energy and use it in respiratory metabolism. It is a faculty known as chemosynthesis. These can be chemoautotrophs or chemoheterotrophs. Like photoautotrophs (such as algae and plants), chemoautotrophs use CO2 as the main source of carbon, but unlike them, they do not use light as a source of energy but instead obtain it by oxidation of reduced inorganic compounds, such as NH3 , NO2-, H2, reduced forms of sulfur (H2S, S, S2O3-) or Fe2 +. Its cellular carbon is derived from CO2 and is assimilated through the reactions of the Calvin cycle, analogously to plants.As a result of their distinctive ability to grow in strictly mineral media, in the absence of light, these organisms are often referred to as chemolithotrophs ( lithos, rock) On the contrary, chemoheterotrophic organisms (or simply heterotrophs), such as animals and fungi, oxidize reduced organic molecules, such as glucose (via glycolysis), triglycerides (via beta oxidation) or amino acids ( oxidative deamination route) to obtain metabolic energy (ATP) and reducing power; In addition, they are unable to use CO2 as a carbon source.
