1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
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.

You might be interested in
Record the stages of meiosis in eukaryotic cells realizing that there are two cell divisions involved, each having their particu
Leya [2.2K]
1.1
Meiosis I
The first meiotic division: diploid → haploid
    Prophase I: Chromosomes condense, nuclear membrane dissolves, homologous chromosomes join and occurs crossing over.
    Metaphase-I: the homologous chromosomes align in the middle of the cell. Spindle fibers from the centrosomes connect to the chromosomes.
    Anaphase -I: Spindle fibers contract and split the homologous chromosomes, moving them to opposite poles of the cell.
    Telophase -I: Chromosomes decondense; cell divides to form two haploid cells.

1.2 Meiosis II
The second division: separates sister chromatids (these chromatids may not be identical due to crossing over in prophase I)

     Prophase II: Chromosomes condense, nuclear membrane dissolves, centrosomes move to opposite poles (perpendicular to before)
    Metaphase-II:  the chromosomes align in the middle of the cell. Spindle fibers from the centrosomes connect to the chromosomes (at the centromere)
    Anaphase-II: Spindle fibers contract and split the sister chromatids, and moves them to opposite poles of the cell.
    Telophase-II: Chromosomes decondense,cells divides again to form another 2 haploid daughter cells. Final: 4 new cells.


2. The differences:
Mitosis:
- has 1 division per cycle
- one cell produces 2 new cells
- the genetic information in the mother-cell and the daughter-cells are the same. ( the number of chromosomes is also the same)
- it occurs in somatic cells
Meiosis:
- two divisions per cycle
- one cell when divides produces 4 new cells
- the new cells have different genetic information. mixes the genetic material from the parent cells
- the number of chromosomes of the daughter cells is half of the mother's.

3. Prokaryotic organisms don't divide through mitosis, they use a different process called binary fission. Only eukaryotic organisms, or those whose cells have a defined nuclei, undergo mitosis. Bacteria, for example, are prokaryotic organisms that use binary fission.

4.
 It can't occur. Cross over is the exchange of DNA between homologous chromosomes.  That will result in recombinant chromosomes during sexual reproduction. It can't occur on different chromosomes because they don't code for the same genes.

5. There are a lot of different theories about that, but it's mostly believed that meiosis must evolve before sexual reproduction. That's because The cell replicates their information first and then divides. Plus the cell does that even though it didn't recombine DNA with another organism (sexual reproduction).

3 0
3 years ago
What hormone inhibits the release of growth hormone?.
Arada [10]
Somatostatin from hypothalamus inhibits the glands growth hormone
7 0
3 years ago
Which structure secretes digestive enzymes that break down carbohydrates, fats, and proteins? A. Pancreas B. Large intestine C.
Ivahew [28]
<span>Which structure secretes digestive enzymes that break down carbohydrates, fats, and proteins? A. Pancreas

Most of the enzyme in the intestinal system is made by pancreas. Pancreas will also secrete insulin to make cell utilize glucose. The Large intestine is absorbing water. Salivary glands mostly digest carbohydrate.</span>
6 0
3 years ago
How is plant behavior in winter like an animal migrating
attashe74 [19]
It is like a animal migrating because it is like hibernating because it doesn't get any food or water in winter.
8 0
3 years ago
Read 2 more answers
Which of the following questions would be studied with quantitative genetics? Group of answer choices a) The contributions of en
worty [1.4K]

Answer:

The answer is letter D

Explanation:

The answer is the letter d) all of the above could be studied with quantitative genetics since quantitative genetics seeks the main gene receptors apart from the assessment of all descendant phenotypes, not only is it considered the most recent but also the occlusion of the older and its strongest gamete at the time of the genetic cross, so any study that relates to the genetic characteristics of the animals either the shape of their body, their color, and even their evolution has to do with quantitative genetics

7 0
3 years ago
Other questions:
  • PLEASE ANSWER QUICK <br><br> (more than one answers)
    11·2 answers
  • What is the main function of a fungus hyphae
    8·1 answer
  • The relative order or male to female based on the structure of the DNA is mainly based on what?
    6·2 answers
  • Question 10 of 10
    9·1 answer
  • Which three systems of the human body function together to move and control body parts?
    14·1 answer
  • 7. Why do scientists think that photosynthetic prokaryotes were probably not the first life forms on Earth?
    8·2 answers
  • What does a fern ultimately depend on as an energy source
    10·2 answers
  • What is the biggest challenge to the successful use of pig organs in human transplants?
    5·2 answers
  • How does the environmental change affect the survival of species ?
    13·2 answers
  • This answer is B right? :)
    11·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!