The Euglena is unique in that it is both heterotrophic (must consume food) and autotrophic (can make its own food).
The andromeda galaxy is approaching our galaxy with a radial velocity of 120 km/s. given the galaxies present separation of 800 kpc, and neglecting both the transverse component of the velocity and the effect of gravity in accelerating the motion, estimate when the two galaxies will collide.
The Andromeda Galaxy, also known as Messier 31, M31, or NGC 224 and originally the Andromeda Nebula, is a barred spiral galaxy that is 2.5 million light-years away from Earth and the closest big galaxy to the Milky Way. It has a diameter of roughly 46.56 kiloparsecs.
The Milky Way, which houses the Solar System and Earth, and the Andromeda Galaxy are anticipated to collide in roughly 4.5 billion years. This galactic collision will take place between the two largest galaxies in the Local Group. The Andromeda galaxy is the brightest galaxy outside of our solar system. It is the furthest object that the majority of us humans can see with our unaided eyes at a distance of 2.5 million light-years.
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Answer: Period
Explanation: Properties of elements within a period on the periodic table change in a predictable way from one side of the table to the other. A period in the periodic table is a horizontal row. All elements in a row have the same number of electron shells.
Metals contain the most and semiconductors contain the least amount. Hope this helps.
Answer:
The sodium forms cations and chlorine forms anions.
Explanation:
- During the formation of the bonding, the sodium atom loses one electron and forms a positively charged ion called cation.
- The chlorine atom receives one electron and forms a negatively charged ion called anion.
- The electro-negativity of the atom determines the bonding nature of the atoms.
- In case of sodium and chlorine, it forms the ionic bonding where there is a transfer of an electron from one atom to the other.
- Hence the charge is given by Na⁺ and Cl⁻
