<span>No, they are not because the alleles at a gene on the pair of homologous chromosomes contributed by both parents may be different. One pair of homologous chromosomes comes from the father while the other pair comes from the mother. A pair of homologous chromosomes contains one maternal and one paternal chromosome that pair up with each other during meiosis. When a parent cell divides into two or more daughter cells; each daughter cells obtain one half of the duplicated set of chromosomes which may or may not. During meiosis the alleles at a gene may or may not be the same producing different phenotypes.</span>
Answer:
1. Another word for chemical weathering is b. disintegration
Chemical weathering is a process by which the rocks are broken down into parts and sediments by the action of a chemical agent such as alkali or acid. The disintegration can be a natural process by which a solid body is broken down into parts or subparts.
2. d. moving water is not an agent of chemical weathering agent.
The chemical weathering can be caused by the agents like lichens which secretes acid on the rock surface and causes it's disintegration, acid rain and salt water are chemical agents that can cause the disintegration of the rock but moving water will have little influence on the hard rock surface.
3. c. chemical weathering is a process which turns rocks and minerals into new substances. The chemical weathering process brings change in the chemical composition of the rocks due to the action of the weathering agents hence, on disintegration of rocks new substances are formed.
Should be decontamination because you are removing the pollution that has been dispersed.
Answer: 100 grams of the parent isotope will remain after one half life.
Explanation:
Mass of the isotope present at initial stage =
The mass of the parent isotope left after the time ,t=N
Time taken by the samle ,t =
The half life of the sample :
100 grams of the parent isotope will remain after one half life.
Answer:
to see if you have certain infectious diseases you can pass on
Explanation: