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Gekata [30.6K]
3 years ago
14

Marianne is conducting an experiment on homeostasis in paramecium, which is a type of single-felled organism. Which of these obs

ervations provides the strongest evidence of a paramecium maintaining homeostasis
Biology
1 answer:
Drupady [299]3 years ago
8 0

Hello. You did not present the answer options, which makes it difficult for you to receive a specific answer. However, I will try to help you in the best possible way.

One of the most common evidences that a paramecium is maintaining homeostasis is the pumping of water from the vacuoles present in its body.

The paramecium is a protozoan that lives in aquatic environments, mainly those composed of fresh water. The problem with this environment is that water is able to enter the paramecium organism in large quantities and this can promote the disruption of the organism through lysis of the cell. In this case, homeostasis must act quickly and pump water out of the body, through the cell vacuole.

Homeostasis is a regulatory system of the organism, which must promote the balance of the organism, whenever any external or internal factor tries to harm this balance.

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4 0
2 years ago
2. In a certain fish, blue scales (BB) and red scales (bb) are codominant. When a fish has the
Evgen [1.6K]

Upon crossing BB with bb, we will get a hybrid of Bb.

  • Codominance is a phenomena in genetics where two alleles (different forms of the same gene) express themselves equally in an organism. As a result, characteristics linked to each allele are shown at the same time.
  • The MN blood group system in humans is an illustration of codominance. M and N alleles control the MN blood type. Red blood cells from people who are homozygous for the M allele carry a surface molecule known as the M antigen. On their red blood cells, those who are homozygous for the N allele contain the N antigen. A heterozygote is a person who carries both antigens.
  • (a) Genotype of blue scales fish will be BB.
  • (b) Genotype of blue scales fish will be bb.
  • (c) Genotype of blue scales fish will be Bb.

So, in this case B and b alleles will express equally.

Learn more about co-dominance:

brainly.com/question/3578928

#SPJ9

3 0
1 year ago
PLLLZ HELP I AM TIMED!!! WILL GIVE BRAINLIEST!!!!
vodomira [7]

Answer:

Explanation:

1. Latitude or distance from the equator – Temperatures drop the further an area is from the equator due to the curvature of the earth. In areas closer to the poles, sunlight has a larger area of atmosphere to pass through and the sun is at a lower angle in the sky.

2. Altitude or height (also sometimes known as depth) is a distance measurement, usually in the vertical or "up" direction, between a reference datum and a point or object. The exact definition and reference datum varies according to the context (e.g., aviation, geometry, geographical survey, sport, or atmospheric pressure). Although the term altitude is commonly used to mean the height above sea level of a location, in geography the term elevation is often preferred for this usage.

3. Large bodies of water, such as oceans, seas and large lakes, can affect the climate of an area. Water heats and cools more slowly than landmasses. Therefore, the coastal regions will stay cooler in summer and warmer in winter, thus creating a more moderate climate with a narrower temperature range.

4. Ocean currents can be caused by wind, density differences in water masses caused by temperature and salinity variations, gravity, and events such as earthquakes or storms. Currents are cohesive streams of seawater that circulate through the ocean

3 0
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Read 2 more answers
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