Answer:
from the sun
Explanation: Energy enters the ecosystem from the Sunand exits after the organisms have taken as much as they need. Organisms release energy back into the biosphereas heat. Energy also enters the ecosystem from the interior of the Earth. It is usually in the form of heat, not the electromagnetic radiation from the Sun.
Answer:
H. prophase I → genetic recombination events take place
C. metaphase I → aligning of bivalents in the center of a spindle
B. anaphase I → separation of homologous chromosomes
F. telophase I → one haploid set of replicated chromosomes at each spindle pole
D. prophase II → shortest stage
G. metaphase II → aligning of monovalents in the center of a spindle
E. anaphase II → separation of sister chromatids
A. telophase II → one haploid set of unreplicated chromosomes at each spindle pole
Explanation:
Through the process of Meiosis, a diploid germ cell (2n) divides and originates four daughter cells with a haploid chromosome number (n). Each daughter cell has half of the chromosomes of the original one. Meiosis is completed in two phases. During the first phase, and after replication, occurs the chromosome´s reduction division. During the second phase, the cell suffers a new, not reductive division.
1. In the first phase, Meiosis I:
- Prophase I: Chromosomes condensate and became visible. Occurs crossing-over between homologous chromosomes. Crossin-over makes the daughter cells to be genetically different from the original one.
- Metaphase I: The pairs of homologous chromosomes randomly align in the equatorial plane.
- Anaphase I: occurs the independent separation of homologous chromosomes that migrate to opposite poles of the cell. This separation generates different chromosomal combinations in the daughter cells.
- Telophase I: Each of the homologous pairs chromosomes is already in the corresponding poles, and the nuclear membrane forms again in each pole.
2. In the second phase, Meiosis II:
- Prophase II: Chromosomes condensate again and become visible.
- Metaphase II: Chromosomes join the spindle apparatus and migrate to the equatorial plane, where they randomly line up. Sister chromatids are holden together until they reach the Anaphase.
- Anaphase II: Centromeres divide, chromatids get separated, and each of them goes forward an opposite cellular pole.
- Telophase II: Once in the poles, the chromosomes became lax again, and cytokinesis occurs.
Fatty acids in the cells are amphiphile, it means they have a polar side (phosphate group) and apolar side (carbon tails).
<u>The polar property</u> helps the cell to adapt with the aqueous medium (in both sides of the membrane).
<u>The apolar property</u> helps the membrane to keep its integrity. Since they "hate water" the apolar side of phospholipid will stay on the inner side of the membrane and be joined together to keep the integrity of the membrane. It contributes also to the viscosity of the membrane.
If this apolar property doesn't exist, The membrane will be too water soluble and dissolves in it, and the cell could not keep its integrity
Organic matter is recycled in an ecosystem by decomposers. Decomposers are organisms<span> such as bacteria and fungi that break down the organic matter in the dead bodies of plants and animals. As the decomposers feed from the dead animals, they break down the organic compounds into simple nutrients</span>
Ammoniate would be your answer.