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ohaa [14]
3 years ago
14

What impact does the various energy conversion processes have on ecology? energy conversion used by man usually produces polluti

on it is related to natural cycles which affect activities of ecosystems natural energy conversion can help maintain/ restore balance none of the above are related to ecosystems
Biology
1 answer:
ohaa [14]3 years ago
6 0
It is related to natural cycles which affect activities of ecosystems

natural energy conversion can help maintain/ restore balance
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PLZZZ HELP ASAP THANKS :))))
Tatiana [17]

Answer:

I think it is Physical change

3 0
3 years ago
During meiosis homologous chromosomes often twist around each other break exchange segments and rejoin this process usually cont
Annette [7]

Explanation:

Crossing over, or genetic recombination contributes to genetic variation and diversity.

In early Prophase I of meiosis, crossing over occurs. This is the exchange of segments of chromosome, between non-sister homologous or similar chromatids crossing over happens at chiasmata, the point where non-sister chromosomes are joined. The chromosome pairs form tetrads held together at chiasmata.

Further Explanation:

All the genetic information within the eukaryotic cell is stored within the nucleus as helical DNA. This DNA is tightly wound around histones as chromosomes. To produce daughter cells, the chromosomes (total number of chromosomes (2n)) are copied before the cell splits into two daughter cells. This process is known as mitosis, and occurs in cell division and growth processes. Two new nuclei are formed, along with identical cells. These are the same as the parent cell and the chromosome number (2n) is maintained. Conversely in meiosis, the number of chromosomes (2n) is halved through meiotic divisions, producing 4 (n) germ cells (sperm or eggs), each containing half the number of chromosomes as its parent cell.

During the process of prophase I one the nuclear envelope containing chromosomes has only partly broken down homologous chromosomes are joined together by proteins and a complex or pairing call synapsis- corresponding genes on chromatids are aligned precisely. The syanpsis allows for crossing over which is the exchange of segments of chromosome, between non-sister homologous or similar chromatids crossing over happens at chiasmata, the point where non-sister chromosomes are joined.

Crossing over contributes to genetic variation and diversity; novel gene combinations in gametes are formed, which are not present in parent chromosomes. Genetic diversity describes all the genetic characteristics or traits within a species.

Learn more about mitosis at brainly.com/question/4303192

#LearnWithBrainly

6 0
3 years ago
what happens to the thickness of the uterine lining when the level of the hormone progesterone reaches its highest levels
Alona [7]
The thickness of the uterine lining , becomes very thick...because when the level of hormone progesterone reaches its highest levels. according to Dr.X on yahoo answers.
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3 0
3 years ago
una de las hebras de ADN de un cromosoma de cierto organismo tiene 5 millones de bases nitrogenadas ¿cuantos nucleótidos debe te
avanturin [10]
La hebra complementaria debe tener 5 millones de nucleótidos, porque cada nucleótido tiene una base nitrogenada, y la hebra complementaria debe tener la misma cantidad de bases nitrogenadas que la hebra original. (Recuerda que las dos hebras "encajan" una con otra).


Ver más en Brainly.lat - https://brainly.lat/tarea/8051246#readmore
6 0
3 years ago
Dentify the pair of homologous structures
Gennadij [26K]

Answer:

a. maple leaf and oak leaf

Explanation:

Homologous structures are those that have the same evolutionary origin but fulfill very different functions, a good example could be the wing of a bird and the wing of an insect, the wings of birds, are modified front members and the wings of insects are "BRANCHES" modified

In the case of maple and oak leaves they are homologous structures because they have a common ancestor according to their genetic decoding, that is, even if they can look different or behave differently, they are genetically homologous structures.

3 0
2 years ago
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