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lord [1]
3 years ago
14

During prophase dna condenses into x-shaped structures called

Biology
1 answer:
yanalaym [24]3 years ago
6 0

Answer:

chromosomes.

Explanation:

Chromosomes occur as strands of long-chain protein molecules called DNA. Chromosomes are made up of two strands each called chromatid . The chromatids are joined at a point called centromere. During prophase, the chromosomes become tightly coiled and so appear shorter and thicker. Parts of chromosomes form functional units called genes which determine different activities of the cell. Genes are hereditary and can be transmitted from parent to off-spring.

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two species, y and z, occupy adjoining environmental portions of land that differ in several abiotic (nonliving) factors (climat
iogann1982 [59]

Answer:

They are different species

Explanation:

Could be that they look similar or that they can share similar environmental portions of land. But, if one specie has more land to colonized and do not do it, that mean that the environmental conditions are not the ideal for it like it is mention the climate (maybe hotter or cooler) or soil (it has a different pH, is lack of one esential nutrient, etc. )

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3 years ago
Smog and other forms of pollution from urban cities can help create more carbon dioxide as well as global warming and, in turn,
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I believe the anawer is B, Deforestation
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The illustration shows one of the ways resources are removed from the deep sea. Describe what type of resources these are, inclu
just olya [345]

Answer:

Marine mining is a process that can be done by dredging the seabed and is used for the extraction of mineral resources from the seabed, which are non-renewable, with a negative impact on marine ecosystems.

Explanation:

The illustration shows a process of marine mining by dredging, where the resource extracted is of a mineral nature, like copper, zinc, silver and gold. Gravel used for construction can also be extracted from the sea. Mineral resources extracted from the sea are not renewable.

The process of marine mining can be harmful to the ecosystems there, so it must be a process that requires control and management from the ecological point of view.

Two possible consequences of not regulating marine mining are:

  1. <u><em>Destruction of the habitat of life forms present on the sea floor</em></u><em>, which endangers many species and even forces migration to more stable areas, with consequences on the food chains. </em>
  2. <em><u>Extinction of marine species that inhabit the seabed</u></em><em>. The flora and fauna of the sea floor usually have slow reproductive cycles and, in the case of fish, spawning takes place on the bottom of the sea. Mining endangers the reproductive cycles of the species, leading to induced extinction.</em>

Responsible and controlled mining activity can be useful for humans, while avoiding negative consequences on the ecosystems that exist at the seabed.

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Answer:

sahi bol rahi hai ye ladki

Explanation:

I also think ,u lack ur sleep

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A demonstration helps students understand a principle of roller coaster design.
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Answer:

location Y

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The KE of a pendulum bob is maximum where it moves fastest, at the lowest point; PE is maximum at the uppermost points. When the pendulum bob swings by the point that marks half its maximum height, it has half its maximum KE, and its PE is halfway between its minimum and maximum values.

Can you Mark a brainlest Please

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2 years ago
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