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gulaghasi [49]
4 years ago
5

What adaptation helps koala bears lead a tree bound in life

Biology
1 answer:
marusya05 [52]4 years ago
4 0

These back paws grip the branches securely so the front paws can be free to pull off eucalyptus leaves for eating. This unique paws structure is an adaptive trait that helps the koala live high up in the trees where they spend half their day feeding on leaves and the other half sleeping.

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An experiment was performed to study the progress of cells through the mitotic cell cycle. The compounds listed below were used
Hatshy [7]
<h2>Mitotic Cell Cycle</h2>

Explanation:

a. Cytochalasin: an inhibitor of actin microfilament

  • Cytokinesis is the process by which cytoplasm is divided into two cells hence generation of two daughter cells
  • In animal cells the division of cytoplasm starts with the assembly of contractile ring
  • Contractile band consists of actin and myosin and catalyze cleavage furrow formation
  • Cytochalasin is a drug that blocks the polymerization of actin filament
  • When cytochalasin is added dividing cell fails to undergo in cytokinesis due to defective assembly of contractile band

b. Colchicine: an inhibitor of microtubule formation

  • Colchicine tightly binds with free tubulin dimer and prevents its polymerization
  • In this case mitotic spindle apparatus do not assemble and cells unable to do partitioning of chromosomes into two groups
  • Thus cell division is arrested

c. Aphidicolin: an inhibitor of DNA Polymerase activity

  • Aphidicolin is used to induce cell cycle arrest via specific inhibition of DNA Polymerase α
  • It blocks the cell cycle at early synthesis(S) phase

d. Emetine: an inhibitor of ribosome activity

  • It blocks the protein synthesis in eukaryotic cells by binding to small subunit(40 S) of ribosomes
  • It interferes with the synthesis and activities of DNA and RNA
5 0
3 years ago
Obsidian is a rock with glass-like characteristics. Obsidian is formed by rapid what and why?
Inga [223]
<span>(d) cooling
if obsidian is glasss like it is very logical that a cooling process is needed! If I was u I'd go cooling, d
:)</span>
7 0
3 years ago
I am a circulating cell involved in ige type allergic reactions. i am a mediator of allergic reactions because i can release gra
777dan777 [17]

Answer:

I am a basophil.

Further information:

Basophil:

Basophils are a type of white blood cell. Basophils are the smallest common of the granulocytes, representing about 0.5 to 1% of circulating white blood cells. Yet, they are the major type of granulocyte.  

Function of basophil:

They are accountable for inflammatory reactions during immune response, as well as in the development of acute and chronic allergic diseases, including anaphylaxis, asthma, atopic dermatitis and hay fever. They also yield compounds those co-ordinate immune responses, including histamine and serotonin that induce inflammation, heparin that stops blood clotting, although there are less than that found in mast cell granules.

Basophils may present in many specific types of inflammatory reactions, specially those that cause allergic symptoms. Basophils have anticoagulant heparin, which prevents blood from clotting too rapidly. They also have the vasodilator histamine, which promotes blood flow to tissues.

Structure of Basophil:

Basophils comprise large cytoplasmic granules which vague the cell nucleus under the microscope when stained. However, when unspotted, the nucleus is visible and it usually has two lobes. The Mast cell which is another granulocyte has very like in appearance and function. Both cell types store histamine, a chemical that is secreted by the cells when inspired. However, they arise from different branches of hematopoiesis, and mast cells usually do not circulate in the blood stream, but instead are located in connective tissue. Similar to all circulating granulocytes, basophils can be carried out of the blood into a tissue when we need it.

Answer details:

Subject: Biology

Level: High level

Keywords:

• Basophil

• Function of Basophil

• Structure of Basophil

Learn more to evaluate:

brainly.com/question/5939912

brainly.com/question/5939912

brainly.com/question/4370471

brainly.com/question/10654641

7 0
3 years ago
Read 2 more answers
Please solve this for me ​
irga5000 [103]

Carbohydrates and Fat - Energy-giving food

Proteins- Body-building food

Vitamin and minerals- Protective food

Dietary fiber- They help in easy digestion of food

Iodine deficiency- Causes the disease called goiter

Lack of Vitamin A- Causes  loss of vision

<h3>What are Carbohydrates and fats?</h3>

Carbohydrates are the biomolecules that are present in our body and building blocks of several eating compounds(mainly sugars like starch, glycogen, etc.) These are the simplest biomolecules and are quick sources of energy.

Fat is a bit complex biomolecule that is present in our food in the form of oils and is also a component of our cell membrane.

<h3>What are vitamins and minerals?</h3>

These are the micronutrient that is required by our body for their normal functioning.

They are a kind of protective food for the proper functioning of our body parts.

<h3>What is Iodine deficiency? </h3>

Iodine deficiency occurs in our body due to a lack of vitamin D which causes goiter. To heal this deficiency doctor prescribes some vitamin d capsules and suggestion to take a sun bath.

Learn more about  Vitamins and minerals here brainly.com/question/6974286

#SPJ1

3 0
2 years ago
Ytfjytdhgctdrxgxjgxgjfcjtrthgdxtjgfcgjcthtdjtrtdhredthxhfxgre what does this mean
spayn [35]

Answer:

It means you’re sick and tired of school.

Explanation:

(sorry if this is an actually question lol)

6 0
4 years ago
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