Answer:
From solutions that evaporate
Explanation:
Minerals can form in different ways. According to the question, minerals crystallize from a material dissolved in water when the solution evaporates. When a material dissolves in water, it forms a solution i.e. water + dissolved material.
The element constituents of the solution can aggregate to form a solid mineral, which will be left to crystallize when the solution undergoes evaporation i.e. liquid changes to gas. A very good example is when salt dissolves in water to form a salt water solution. When the water of this solution evaporates, salt crystals are left, which can crystallize to form minerals.
Answer:
RNA molecules are made of nucleotides. (Ans. C)
Explanation:
RNA, which is also known as ribonucleic acid is found in cytoplasm of the cell, and synthesized in the nucleus. It is shorter, and a single stranded molecule. It is composed of one or more nucleotides which are linked together by phosphodiester bonds.
In RNA, the ribonucleotide contains pentose sugar ribose, four nitrogenous bases (A,U,C,G), and a phosphate group. RNA plays many types of role in cells, but mainly involved in the translation process, and it's regulation which is known as protein synthesis.
Answer:
a, 8
b, 3
Explanation:
If the pedigree you are referring to is the one that is attached then the answer would be:
A pedigree shows how a trait is passed on throughout generations. Like it says in the question, the squares represent males. If the square isn't shaded in, then that means they are unaffected by the trait or normal. If it is shaded, they are affected.
All you need to do for the first question is count the number of squares you see in the whole pedigree. In this case, there are 8.
The second one is asking how many are affected, or have hemophilia. You need to count the number of squares that are shaded in. In the pedigree, we see 3.
They all have CHO; carbon, hydrogen and oxygen
Two different plants, one from the coniferous forests of Canada, and the other from the tropical rain forest of Belize, will look different, have different adaptations, and different way of functioning.
The plant from the coniferous forests of Canada will have thicker bark, leaves that are needle like, harder and thicker. These will be adaptations for the plant to be able to survive in the very cold winters, as the temperatures are way below zero, and there is lot of snow and ice. This plant will also be capable of minimizing its activity for several months, until the conditions are suitable again. The growth of it will be slow, as the vegetative season is short.
The plant from the tropical rain forest of Belize will have wide and thick leaves. It will be high because there is a lot of competition for sunlight. The plant will be able to stop the intake of water through its roots as in certain periods of the year there's just too much water. It will be highly active throughout all of the year, as it is summer summer for the whole year, and there is sufficient precipitation for most of the year, or even when there isn't there's lot of water around. iT will have a very quick growth.
