The red-green color blindness is a recessive X-linked trait. The females are not affected unless both the X chromosomes have the affected allele. Mostly, the females are the carriers, and the males are affected as they have only one X chromosome. In the given pedigree, the father of Irene have the normal allele, while her mother is a carrier. However, Irene is neither a carrier nor affected. This means that she carries normal alleles on both X chromosomes. Hence, her allele combination is 
.
Answer:
The box has blocked the sunlight from the waterweed and it has stopped photosynthesising
Explanation:
ATP stand for adenosine triphosphate. It consists of the nitrogenous base adenine and is linked to a sugar molecule. It is necessary for human life because it gives the body energy
Flooding is the term used to characterize the process that occurs when the waters of a river overflow due to rain and occupy the area next to the river, called the river plain. It can have natural or anthropogenic causes and affect vulnerable populations more often.
<h3>What is Biotic and Abiotic?</h3>
The biotic components are all the living things that live in a certain place, while the abiotic components are all the physical, chemical and geological factors of the environment such as water, light, soil, humidity, temperature, nutrients etc.
With this information, we can conclude that A flood can wash away important abiotic factors, such as soil and rocks, that certain biotic factors need to survive, thus flooding affects the ecology of affected regions.
Learn more about flood in brainly.com/question/13974555
#SPJ1
Greenhouse gases are naturally occurring gases that are also produced as a result of human consumption, such as the burning of fossil fuels. They are essential to life in that a gas such as carbon dioxide (Co2) is essential to photosynthesis and the production of oxygen which helps to sustain life. However, the levels of greenhouse gases are far outreaching their natural limits and are having a negative impact on human and animal life.
