Answer:
e) S phase
Explanation:
The cell cycle is divided into various phases. These are in accordance with their order:
1.
phase
In this phase, the cell grows in size and doubles its organelles. This phase is in fact a preparatory phase for cell division.
2.S phase
In this phase, the cell doubles its nuclear material (DNA). As cell divides into 2 daughter cells in mitosis, therefore it is necessary for cell to double its genetic material (DNA) which takes place in S phase. This genetic material is equally distributed among the daughter cells.
3.
phase
In this phase, the cell further increases its store of proteins and organelles and prepares for the next phase i.e. M phase in which cell divides.
4.M phase
It consists of 2 processes i.e. mitosis and cytokinesis. In mitosis, the cell divides its genetic material (DNA) and in cytokinesis, the cell divides its cytoplasm resulting in 2 daughter cells.
phase
This is an inactive stage of cell cycle. In this stage cell does not divide further but remains quiescent. It performs its normal function in this phase. This phase is not a feature of all cells. Some cells like neurons (nerve cells) enter Go phase and remain there permanently whereas epithelial cells (cells lining body surfaces) do not enter Go phase and continuously divide. Cells enter Go phase after going through
phase.
Back to the question,
If interval A contains half as much DNA as interval C then it implies that interval A is
phase as in this phase of cell cycle, cell increases its size, and organelles but does not double its DNA content. It is further understood that interval C is
phase as it contains double the DNA amount as in interval A. It can be understood that B interval is S phase, as in S phase cell doubles its DNA content and this phase occurs in between
and
phases.
your answer would be c) iron deficiency
Answer:
1. The Space Age changed Florida forever. Thousands of new workers moved to the state and transformed Cape Canaveral into a hub of aeronautics, electrical engineering, and manufacturing. Space became an integral part of Florida's culture.
Answer: Angiosperms represent approximately 80 percent of all known living green plants. Examples range from the common dandelion to ancient flowers such as magnolias. Angiosperms also make up the vast majority of all plant foods we eat. (Ex. grains, vegetables, and fruits.) The angiosperms are vascular seed plants in which the ovule (egg) is fertilized and develops into a seed in an enclosed hollow ovary The ovary itself is usually enclosed in a flower, that part of the angiospermous plant that contains the male or female reproductive organs or both. fruits are derived from the maturing floral organs of the angiospermous plant and are therefore characteristic of angiosperms.
Explanation: ^
One of the observable changes of a chemical change is the change in color. So, yes, leaves changing color is a chemical changes. This is brought about by biochemical reactions of the plant. The plant is composed of different pigments like chlorophyll, carotenoids and anthocyanins. The dominant one is chlorophyll which gives leaves its green characteristic cholor. The chlorophyll is abundant in plants because it is responsible for the process of photosynthesis. But when the season changes to longer nights and less sunlight, the chlorophyll cannot be used. So, it spends it reserves through other pigments. Hence, it changes color. A yellow leaf has dominant caretonoid pigment.