Answer:
A pH indicator is able to tell what level of pH the substance is at. It can tell how acidic a substance is. If a substance has more hydrogen ions than hydroxide ions then it is acidic. If it has more hydroxide ions that hydrogen ions it is an akaline. the acidic scale is from 0 to 14. lower numbers means more acidic and higher numbers means it is an alkaline.
Explanation:
pH stands for potential Hydrogen.
Answer:
Yes
Explanation:
Humans can be attacked by many microbes like bacteria, viruses, fungi, and parasites like flatworms, etc. These parasites and microbes cause different infections and diseases in humans.
This is true to most other species that they also face a similar array of parasite because every species represents a source which can be exploited by an array of parasites. Each parasite attacks on specific organs or tissue which allow different parasite to attack different organs. Therefore it is reasonable.
Answer:
9/256
Explanation:
According to Mendel's experiments the results for the heterozygous are in the ratio 3:1
As each gene is considered separately and the multiplication rule is used. Therefore the probability of getting a solid color would be 1/4 and black fur would be 3/4. Similarly the probability of getting the colored fur is 3/4 and getting a piebald( white patches) is 1/4
Then the combined probability is (1/4*3/4*1/4*3/4)= 9/256
The movement of Ions or molecules across a membrane from low concentration to high concentration. Which requires energy.
The 4 types of organic compounds and their subdivisions within living organisms are:
1. Carbohydrates:
- Monosaccharides,
- Oligosaccharides,
- Polysaccharides.
2. Lipids:
- Fats,
- Phospholipids,
- Waxes,
- Sterols.
3. Proteins:
- Primary structure (amino acid sequence),
- The secondary structure,
- The tertiary structure,
- The quaternary structure.
4. Nucleic acids:
- DNA (deoxyribonucleic acid),
- RNA (ibonucleic acid).
