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alisha [4.7K]
3 years ago
14

What happens in the tetrad stage?​

Biology
1 answer:
boyakko [2]3 years ago
5 0

Answer:

The tetrad occurs during the first phase of meiosis. It is the foursome of chromatids that forms when replicated homologous chromosomes align. It must be formed for crossing over to occur. It is broken apart when the homologous chromosomes separate in meiosis I.

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You are a scientist intrigued by organisms that can create complex molecules through chemosynthesis. The habitat you are most li
a_sh-v [17]

Answer:

The correct answer is - hydrothermal vent

Explanation:

The hypothermal vent is found near the magma and seawater meets. It is commonly present near active areas volcanically, locations where tectonic plates spreading centers, ocean basins, and hotspots.

The organism that lives in the particular habitat is specialized bacteria, yeti crabs, tube worms and many fishes and invertebrates.

The correct answer is - hydrothermal vent

3 0
3 years ago
FOR 33 POINTS seismic belts are relatively narrow and tend to follow tectonic plate boundaries true or false
IRINA_888 [86]
True the tend to follow bounderies.
5 0
3 years ago
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HELPPPPPP QUICK please!
denpristay [2]

HI~ I hope this helps

(these answers were hand-written meaning I did not copy and paste so, feel free to use the answers freely)

1.

When ecosystems change rapidly the fundamental environmental cycles such as the circulation of water, carbon and nutrients can change as ecosystems depend on them. The usage of factors such as freshwater, carbon dioxide emissions and fertilizer provides a large benefit to humas therefore meaning, that large and rapid changes to an ecosystem could also effect the things we as humans rely on.

2.  

Complex organic matter is broken down by decomposers into carbon dioxide, water etc. The ecosystem is affected based upon the fact that the decomposition of organic matter that is produced by plants, animals and soil organisms is an important process which affects the different important ecosystem processes like nutrient cycling and carbon sequestration.

3. (could have two answers- I recommend the second)

Adaptation- due to the mutation process which results in changes in the structure and function of organisms, these ecosystems would be different as well as unique. The organisms which possesses the traits needed to adapt could then survive as its unique characteristics due to mutation would provide a strong ability

Rise in temperature- If the temperature located on earth was to rise, organisms would have a higher living rate as bacterial life flourishes in warmer temperatures and dies out in colder ones.

4.

~The rapid change of increased food production provides better life sustainability to those living in the ecosystem.

~The rapid change in a large increasing number of organisms could be helpful as they often live of off one another.

5.

~Rapid growth of things such as phytoplankton which cause dead zones are harmful to the ecosystem. Dead zones create zones where too much oxygen is consumed resulting in areas where plants and sea life can no longer survive.

~Whereas the rapid increase of organisms could also be harmful to an ecosystem as the possibility of the organism outnumbering the food sources could become prominent.

8 0
3 years ago
1. In which region of the oceans dose good mixing prevent layering?
Advocard [28]
1. B
2. B
3. C
4. C
5. D
6. C
7. C
8. D
9. C
4 0
3 years ago
Read 2 more answers
7. Explain why we have 4 seasons.
Juliette [100K]

Answer:

The four seasons happen because of the tilt of the Earth's axis. At different times of the year, the sun's rays hit different parts of the globe more directly. The angle of the Earth's axis tilts the Northern Hemisphere towards the sun during the summer.

Explanation:

4 0
3 years ago
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