Answer:
A single nucleotide polymorphism (SNP) is the most common gene variation found among people. A SNP represents a change in a single DNA block, called a nuecleotide, being able, for example, to replace a nucleotide cytosine (C), with a nucleotide thymine (T), guanine (G) or adenine (A) in the genome. They represent the 90% of all the human gene variations.
Explanation:
producers
b.
omnivores
c.
herbivores
d.
consumers
All animals are considered consumers because they eat producers, in the tropic level there are several layers that are primary, secondary, and tertiary consumers, hence option D is correct.
Consumers are defined as an organism, they do not synthesize their own food and depends on the consumers, in the ecosystem plants are considered producers, that are eaten by animals (consumers).
Plants are producers, they are able to synthesize organic material with the help of photosynthesis and this provides energy to the other organism that consumes these plants.
In every topic level in the energy pyramid, each organism depends on another tropic level for energy needs, the consumer depends on their energy need to producers.
Therefore, it is suggested that all animals are consumers.
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Answer:
Explanation: Ionic bonding is the complete transfer of valence electron(s) between atoms. It is a type of chemical bond that generates two oppositely charged ions. In ionic bonds, the metal loses electrons to become a positively charged cation, whereas the nonmetal accepts those electrons to become a negatively charged anion
Answer:
Alpha particles are usually produced by alpha decay which consisted of two protons and two neutrons.
They are identical to the nucleus of helium-4.
The alpha particle is represented as α or α²⁺. In addition, as it is identical to nucleus of helium, it is also represented as He²⁺.
As it only posses two protons and two neutrons but no electrons, the overall charge of alpha particle is +2.
The mass number of an element refers to the total number of neutrons and protons in the nucleus. Hence, the mass number of alpha particle would be 4
The nutrient that can be found in all organic compounds is the carbon. The reason why carbon is found in all organic compounds is described below.
Organic compounds are those chemical compounds found in living organisms which are made up of carbon-hydrogen bonds.
Carbon is the main element in organic compound since it forms its bonds. Typical examples of these organic compounds are:
Therefore, The nutrient that can be found in all organic compounds is the carbon.
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The benefit of using a shortcut in a reaction between two chemicals is that sings of a chemical change will still be found. We will still get a new substance and its chemical and physical properties will differ from those of the original substance.
I hope it helps, Regards.
A reaction with a shortcut would yield more chemical output.