The answer is B. both need food and air
The correct answer is - C) carotenoids.
The majority of the trees from the mid-latitude forests tend to shade their leaves in the autumn. This process occurs because of the seasonal changes in the climate, where the trees tend to be almost not-active during the winter, so in order to preserve as much energy and nutrients as possible they get read off their leaves.
It is not a sudden process, but it takes some time, where the leaves from the initial green color start to change to yellowish, than towards orange, reddish, or brownish before they fall.
The reason why this coloration appears in the leaves when the tree starts to process of shading them off are carotenoids. The carotenoids found in the leaves, the lutein and the beta-caroten, thorugh the xantophills and the flavonoids give a yellowish color to the leaves, thus we get the beautiful autumn colors and landscapes.
Answer:
C.) The oxygen produced by photosynthesis during the day is greater than the amount of oxygen used for respiration.
Explanation:
Oxygen concentration decreases at night.Concentrations of oxygen can decrease significantly during the night, due to respiration. DO concentrations are usually highest in the late afternoon, because photosynthesis has been occurring all day.
Answer: D. offspring with red and green cones.
Explanation:
Codominance is a form of inheritance in which the alleles of a pair of genes in a heterozygous are fully expressed. As a result the offspring phenotype is a combination of the parents' phenotype. Therefore, the trait is neither dominant nor recessive.
In the codominant inheritance, two different versions so called alleles of a gene are expressed and each allele produces a somewhat different protein. Here, both versions influence the genetic trait or determine the characteristics of the genetic condition.
Answer:
The correct answer is a. Zygote
Explanation:
Edouard van Beneden was a zoology professor at the University of Liège whose worked showed how chromosomes are organized during gamete formation or during meiosis process.
During meiosis, the chromosomes number is reduced to half so each gamete contains half of the chromosome found in somatic cell and are called haploid cells. This reduction in chromosome number is necessary to bring the correct number of chromosomes in the zygote.
During fertilization, sperms fuse with eggs to produce a single diploid cell that is known as zygote. So the zygote has 46 chromosome in which half comes from sperm and half from the egg.
