<h3><u>Answer;</u></h3>
D) Mutations lead to new genes, which may have an advantage over the old forms, causing the species to evolve.
<h3><u>Explanation;</u></h3>
- <em><u>Mutations are sudden, random changes that occur spontaneously in the genetic make up of an organism.</u></em> Mutation are caused by various factors which includes errors in meiosis, and other factors such as chemical mutagens.
- <em><u>Mutations may be beneficial and may play an important role in evolution as they are raw material of genetic variation</u></em>. <em><u>Mutations may lead to genetic variations in the genetic make up of an organism . Therefore mutations are important to mutation since they create new DNA sequences for a given gene and thus resulting to new alleles.</u></em>
1) a five carbon ribose sugar
2) a phosphate molecule
3) one of four nitrogenous bases: adenine, guanine, cytosine or uracil
Answer:
The modern view of electric charge is that it is a basic property of atoms, the fundamental particles of which all matter is made. Atoms themselves are composed of three different types of particles—protons, neutrons, and electrons.
Explanation:
The answer is that the strength of heart contraction and
blood volume. It is affected by blood volume, stroke volumes, total peripheral
resistance, and HR. It has Increase in any of these will increase blood
pressure. Vasoconstriction of arterioles raises blood pressure upstream in the
arteries
Answer: rock melting—>crystallisation
Explanation: I am going to assume that the process must be a formal word like sedimentation, metamorphism, or crystallisation. The formal word for it is crystallisation. Metamorphic rocks are rocks that doesn’t melt even when exposed to extreme heat. This can be found under the Earth’s crust (so basically underground) near/under mountains. It is really hard to melt, but when they do melt (I’m not sure what the formal word is for this process, so I’m going to call it rock melting) the metamorphic rock turns into magma. This magma comes to the surface whenever the volcano erupts and is called lava. Whenever the lava dries up (crystallisation), it forms igneous rocks.
