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VARVARA [1.3K]
3 years ago
14

The water cycle consists of some water evaporating from the surfaces of bodies of water and going into the air. As result of air

temperatures, water vapor eventually condenses and falls as rain. The rain nurtures life and the environment and eventually makes its way back into water where the cycle is repeated. Water has an unusually low vapor pressure and does not rapidly evaporate because of its
Biology
2 answers:
damaskus [11]3 years ago
7 0
Tight hydrogen bonding

The atoms in a compound are held together by a chemical bond. The chemical bonds can be either covalent bonds or ionic bonds. Both the bonds are considered very strong bonds. These bonds are mainly formed by sharing of electrons or in the case when one of the elements making the compound donates electron to the other element. The nucleus of each atom attracts to form a strong bond. This property of attraction between the nucleus of the atoms actually helps in forming the chemical bonds.<span>
</span>
Crank3 years ago
7 0

The water cycle consists of some water evaporating from the surfaces of bodies of water and going into the air. As result of air temperatures, water vapor eventually condenses and falls as rain. The rain nurtures life and the environment and eventually makes its way back into water where the cycle is repeated. Water has an unusually low vapor pressure and does not rapidly evaporate because of its <u><em>hydrogen bonding.</em></u>

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Is most of South America's trees tropical trees?
Oliga [24]
The most common tree in that continent is one that's named "floss silk". It's classified as a tropical tree so we could say that most of South America is covered in tropical trees.

Have a nice day! :)
8 0
3 years ago
Let's suppose you were interested in developing drugs to prevent epigenetic changes that may contribute to cancer. What cellular
Vaselesa [24]

Answer:

Potential targets:

1- DNA methyltransferases

2- Chromatin modifiers such as histone acetyltransferases, histone deacetylases, histone methyltransferases, etc.

3- Components of the RNA interference (RNAi) machinery such as Dicer, Argonaute, etc.

Explanation:

Epigenetics can be defined as the study of any heritable change in the phenotype that does not involve modifications in the DNA sequence. Epigenetic mechanisms can be classified into three major types: 1-DNA methylation, 2-histone modifications (e.g., acetylation, methylation, phosphorylation, etc), and 3-regulatory non-coding RNAs (e.g., miRNAs, lncRNAs, siRNAs, etc) that modulate target gene expression via the RNA interference pathway. There are different types of proteins that are involved in these complex epigenetic mechanisms, and those cited above represent only some examples that can be used as therapeutic targets.

5 0
3 years ago
Which of the following is associated with extracellular digestion caused by release of the lysosomes enzymes into the environmen
Rudik [331]

Answer: Rheumatoid arthritis

Explanation:

Rheumatoid arthritis is a disease which is a autoimmune disease which is usually associated with the pain and inflammation in the joints. This is the condition in which the person is not able to walk or sit for a longer period of time as it is painful.

The lysosomes is an enzyme that is found in the saliva and tears of human beings which helps in the degradation of the cell wall.

In case of autoimmune diseases the antibody present in the body destroys the cells of the body considering it as self antigen. Its concentration is found high in the people suffering from this autoimmune disorder.

8 0
3 years ago
Which of the following is a factor that, by itself, does not promote widespread changes in allele or genotype frequencies? a. Ne
defon

Answer:

A new mutation

Explanation:

A mutation refers to the random changes in the DNA of organisms. A mutation changes the allele and genotype frequencies by the introduction of a new allele in the gene pool.

However, mutations are not the major factor responsible for changes in the gene pool of a population as mutations are rare. The rate of mutations is very slow and does not allow it to serve as a major factor to change the allele and genotype frequencies.

8 0
3 years ago
The temperature of a city is 32°F, or 0°C. What form will the precipitation most likely take when it reaches the ground
Ipatiy [6.2K]
Either freezing rain or snow. 
6 0
3 years ago
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