PLEASE HELPP

1 answer:

5 0

If light hits the light sensitive area at the back of your eye, called the retina, photoreceptors take it as a signal. This signal translates through your brain through what is called the optic nerve. Your brain then turns this signal into something you can observe or see.

You might be interested in

List the 4 abiotic forms of nitrogen cycle and the chemical formula

weeeeeb [17]

Answer:

Four abiotic forms of nitrogen cycle and its chemical formula

Ammonium – $NH^{4+}$

Ammonia – $NH^3$

Nitrite – $NO^2$

Nitrate – $NO^3$

Explanation:

Ammonium: In the nitrogen cycle ammonium is starting point that is present in soil and are converted to various forms by different process.

Ammonia: In the process of nitrogen fixation, the bacteria having nitrogenase enzymes reacts with the nitrogen as well as hydrogen and produces the ammonia, which is further converted to organic compounds.

Nitrite: The nitrosomonas bacteria present helps in conversion of nitrogen gas into nitrite.

Nitrate: Again the Nitrite is converted into Nitrate by the nitrobacter. During the process of assimilation ammonium and nitrate are absorbed by the plants.

8 0

3 years ago

Viruses are considered to be ___

steposvetlana [31]

Viruses are considered to be nonliving.

lol. whats when whole thing

3 0

3 years ago

Read 2 more answers

) When predicting the phenotype of the offspring from a dihybrid cross, why is it so important that each gene is located in a di

Bond [772]

Answer:

a) The genes present on separate chromosomes exhibit indepedent assortment.

b) The genotype of tall and purple flower parent= TTPp

The genotype of short and purple flower parent: ttPp

Explanation:

a) In a dihybrid cross, if the genes are present on the same chromosome, they will not exhibit independent assortment. The genes present on the same chromosome are called linked genes. Linked genes are inherited together. The absence of independent assortment of a linked gene gives more of parental types in F2 progeny. Therefore, if genes are not present on a separate chromosome, Mendel’s ratios deviate.

b) Alleles for tallness and purple flower are dominant. In the progeny, all the plants are tall. This means that the dominant tall plant is homozygous. With respect to flower color, the trait exhibits segregation of dominant and recessive alleles and both purple and white flower progeny are obtained. This makes both the plants heterozygous for the flower color gene.

The genotype of tall and purple flower parent= TTPp

The genotype of short and purple flower parent: ttPp