Answer:
2n=46(duplicated)
Explanation:
Prior to cell division, which can either be meiotic or mitotic, the DNA content of the cell gets doubled in the Synthesis phase of the Interphase stage. In humans like myself, our cells consist of 23 pairs of chromosomes or 46 chromosomes. The DNA doubles in order for each daughter cell to get the correct number of genetic material.
After the S-phase, the chromosome number in the human cell does not change, just that each individual chromosome gets replicated or duplicated to form sister chromatids. Therefore, the human cell will contain 46 duplicated chromosomes or 92 sister chromatids after Synthesis phase and before the meiotic division.
Note that, humans are diploid organisms (2n) i.e. two set of chromosomes. Hence, they undergo meiosis to reduce their ploidy level from diploid (2n=46) to haploid (n=23).
The tertiary consumer will receive 500 calories.
<u>Explanation:</u>
Calories produced by the producer = 500,000
The flow of energy through different trophic levels is 10%
After producer comes the primary consumer followed by secondary consumer followed by tertiary consumer.
Energy reached to primary consumer = 
= 50000 calories
Energy reached to secondary consumer = 
= 5000 calories
Energy reached to tertiary consumer = 
= 500 calories
Therefore, the tertiary consumer will receive 500 calories.
Answer:
Tropical Cyclones
Explanation:
Tropical Cyclones and Storm Surges
Mid-latitude cyclones, also called frontal cyclones, are large traveling low-pressure systems that develop along weather fronts (lines of separation between a cold air mass and a warm air mass) in the mid-latitudes (35°–55° N and S).
Hope this helps :)
Answer:
The correct answer is A.
Explanation:
A seed is a small embryonic plant bounded in a casing called the seed coat. It is often enclosed with some food as well. The seed is comprised of the embryo and the tissue from the mother-plant, which is the plant the seed stems from. The mother-plant can also sprout a funnel around the seed in coniferous plants. The ripened ovule of gymnosperm and angiosperm plants is what matures into the seed. This ensues after fertilization. The seed is produced in the fruits of the plants. The process of seed formation starts with double fertilization in the angiosperm. It requires the fusion of the egg and sperm to produce a zygote. Next, the fusion of the nuclei with a second sperm cell nucleus occurs and forms a primary endosperm. The zygote produced at the beginning of the process through fertilization remains inactive whereas the primary endosperm goes onto divide at a rapid rate to form the endosperm tissue. This tissue will then be used as food for the new plant and will be used until after germination, which is when the roots will have sprouted. Alternatively, it can also develop into a hard seed coat. The formation of the actual seed happens right at the end of the process of reproduction, after the growth of the flowers and pollination develops.
