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lutik1710 [3]
2 years ago
13

Describe what happens during prophase I and metaphase I

Biology
2 answers:
Lisa [10]2 years ago
6 0
In prophase, the nucleolus disappears and chromosomes condense and become visible. In prometaphase, kinetochores appear at the centromeres and mitotic spindle microtubules attach to kinetochores. In metaphase, chromosomes are lined up and each sister chromatid is attached to a spindle fiber.
tekilochka [14]2 years ago
5 0

Explanation: it goes through metaphase

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1. List 2 interactions between the earth spheres and the water cycle.
Harrizon [31]

Answer:

The carbon cycle, as the nitrogen cycle, occurs in all the spheres: Biosphere, Atmosphere, Geosphere and Hydrosphere.

Explanation:

Most Earth events involve interaction between multiple spheres. For example, rain is the movement of water (the hydrosphere) from the atmosphere to the lithosphere where it collects in lakes, rivers, or streams. Water is an important resource for inhabitants of the biosphere.

The Atmosphere-contains all the air in Earth's system. The upper portion of the atmosphere protects the organisms of the biosphere from the sun's ultraviolet radiation. It also absorbs and emits heat. This sphere is also where weather occurs.

The nitrogen cycle occurs in all the spheres and ecosystems. It passes through rocks, water, atmosphere, plants, etc.

In atmosphere and biosphere: Nitrogen is about 78% of the gases in the atmosphere an it’s a essential component of the living organisms. It enters plants through the microorganisms that convert this nitrogen into ammonia. After this conversion, the plants absorb this substance. It can pass to animals when they eat these plants. Then, when they urinate, bacteria convert ammonia to nitrogen again and it returns to the atmosphere.

Sources:

https://earthsphereslife.wordpress.com/2020/03/31/nitrogen-cycle/https://earthsphereslife.wordpress.com/2020/04/01/carbon-cycle-in-all-the-spheres/

4 0
2 years ago
As you have determined, the F1 is heterozygous for four loci that affect fruit segment number (A+ A 0 B+ B 0 C+ C 0 D+ D 0). Thi
ololo11 [35]

Answer:

0 additive alleles = A0B0C0D0

1 additive allele = A+B0C0D0, A0B+C0D0, A0B0C+D0, A0B0C0D+

2 additive alleles = A+B0C0D+, A+BC+D0, A0B+C+D0, A0B+C0D+, A0B0C+D+, A+B+C0D0

3 additive alleles = A+B+C+D0, A+B+C0D+, A+B0C+D+, A0B+C+D+

4 additive alleles = A+B+C+D+

8 0
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Answer:

Isotonic

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Hypertonic

having a higher osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid

Hypotonic

having a lower osmotic pressure than a particular fluid, typically a body fluid or intracellular fluid.

Explanation:

4 0
3 years ago
What inference can be drawn about the nature of plasmids from the observation
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Answer:

what observation

Explanation:

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3 years ago
Atomic mass is determined by the number of protons plus the number of?
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Atomic Mass is determined by the number of protons plus the number of neutrons.
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