Isotopes are atoms of the same element with the same number of protons and different number of neutrons.
<h3>What are isotopes?</h3>
Isotopes are any of two or more forms of an element where the atoms have the same number of protons, but a different number of neutrons within their nuclei.
As a result of this, atoms of isotopes will have the same atomic number but a different mass number.
Examples of isotopes are
- Carbon-12 and Carbon-14
- Nitrogen-14 and Nitrogen-15
Therefore, isotopes are atoms of the same element with the same number of protons and different number of neutrons.
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Answer:
need to live in bodies of water and must move around to find food. Most often, they must obtain nutrients by eating their other organisms. Plant like protists, and some types of bacteria, can make their own food through photosynthesis.
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Explanation:The phospholipid bilayer formed by these interactions makes a good barrier between the interior and exterior of the cell, because water and other polar or charged substances cannot easily cross the hydrophobic core of the membrane. Can water cross the plasma membrane at all?
It also helps the cell move things in and out. The cell membrane is made of what is called a phospholipid bilayer, which means it has two layers of phospholipids. ... This allows the phosphates to be exposed to water, either in the cell or the environment, while the lipids are protected from water Lipids are essential for all life on Earth. They play many important roles in maintaining the health of an organism. Arguably the most important function lipids perform is as the building blocks of cellular membranes. Other functions include energy storage, insulation, cellular communication and protection.Large quantities of water molecules constantly move across cell membranes by simple diffusion, often facilitated by movement through membrane proteins, including aquaporins. In general, net movement of water into or out of cells is negligible.
Creeping thistle continuously survives through easy germination of seeds. The Creeping thistle seed can be buried in undisturbed soil for over 20 years and still become growable. And also, the roots help in their growth. They absorb nutrients and regenerate to form new plants. Although the roots may be able to penetrate some meters down, most regeneration occurs within or just below the plow layer. Portions of the adjacent roots become thick due to the developing storage tissue which is where new shoots are formed.
D all of the above is the answer