Hello Deby79. I do believe the correct response would be that of "fauna" as the territorial region.
Answer:
1. 5 pg of DNA.
2. 10 pg of DNA.
Explanation:
The process of meiosis results in the production of the four haploid daughter cells and is involved in the formation of sexual gametes. The sperm cells produced as a result of the meiosis are haploid in their ploidy and therefore contains only "C" amount of DNA.
<u>1. During interphase
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The sperms are formed from the diploid spermatocytes which contain 2C amount of DNA. During the cell cycle before the M phase, cell replication takes place in the S phase. The synthesis phase doubles the amount of DNA and forms 2C to 4C.
Therefore before the S phase or in G1 phase, the DNA amount will be 2C or 2 x 2.5= 5 pg of DNA.
<u>2. At metaphase
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After S phase, the amount of DNA increases to 4C which gets distributed during the anaphase that is after the metaphase. Therefore, the amount of DNA during metaphase will be 4C or 4 x 2.5 = 10 pg.
Answer: the control group was grown at a pH of 2
Explanation:
Seeds comprise a radicle, which descends and becomes the root system; the endosperm, containing stored food; an epicotyl, which develops into the stem and the seed coat that protects the seed. which are small food storage organs and plant embryos encased in a seed coat. These embryos require specific conditions in order to break their dormancy; seed dormancy is a temporary state in which plant development and growth are halted, until specific conditions required for germination to occur. Conditions required for seed germination:
- Light- some seeds require light to break their dormancy
- Oxygen- for respiration
- Water- protein hydration and enzyme activation; should be near to neutral pH
- Temperature- a specific range 20-30 °C which activates specific enzymes needed for growth
During the germination process, plants emerge from the seed and start growing. However, the delicate tissue structures can be damaged by low pH; this can occur due to acid rain, where the pH of the rainwater is lowered by the presence of pollutants.
Due to the presence of atmospheric carbon dioxide, normal rain’s pH is typically around 5.6, and in heavily polluted areas with other gases as pollutants, acid rain’s pH can range from 3-4. A highly acidic pH of 2 can denature enzymes required for germination and seed growth; apart from causing damage to the entire seed, there’s no expected growth at this pH range making it a suitable control.
Experimental controls give valuable information about the experiment’s conditions and validity; they are usually carried out in the same conditions as the other experiments, but the independent variable (pH) is usually changed.
Particles or molecules that are too big to fit through regular pores in the cell membrane, or have to big an electric charge, against the current of passive transport ( lower to higher ).
b. media standards of beauty are increasingly unattainable for the average woman.
Explanation:
The media standard of beauty means beauty standards shown by actresses, models or other celebrities etc.
Our society now a days expect a woman to be beautiful and perfect as the actresses or models.
A continuous craving to be considered as beautiful has forced an average woman to adopt ways of losing weight and maintain a slim or skinny figure.
But this desire has lead them to certain serious mental disorder in which they either lose the desire to eat (anorexia nervosa) or slip into depression after eating and switch to unhealthy practices of losing weight (bulimia nervosa).
Thus we can term that our culture and physiology collides with each other and takes a form of serious disorders like these.