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kirill [66]
3 years ago
12

Carbon is unique because it can form

Biology
1 answer:
katen-ka-za [31]3 years ago
7 0
The carbon atom has unique properties that allow it to form covalent bonds to as many as four different atoms, making this versatile element ideal to serve as the basic structural component, or “backbone,” of the macromolecules.
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Sponges have collar cells that trap food and ingest it by or by the enzymes of lysosomes.
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<span>One type of organisms known as sponges have collar cells that trap food and ingest it by ___ or by the enzymes of lysosomes. The word that would best complete the sentence is "phagocytosis". This is also most commonly known as the food-eating that is the process of engulfing food. </span>
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3 years ago
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Answer:

corona ke din chale gaye dî•,•

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3 years ago
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A researcher places dogs in a cage with metal bars on the floor. the dogs are randomly given electric shocks and can do nothing
kifflom [539]

The answer choices to this question are:

<span>a.       </span>Learned helplessness.

<span>b.      </span>Stimulus discrimination. 

<span>c.       </span>Aversive conditioning. 

<span>d.      </span>Vicarious learning.

The best answer choice is:

<span>a. </span>Learned helplessness

<span>Explanation: Learned helplessness was studied by Seligman as a potential animal model of depression. Learned helplessness occurs when people or animals feel helpless to avoid negative situations. Martin Seligman first observed learned helplessness when he was doing experiments on dogs. He noticed that the dogs didn't try to escape the shocks if they had been conditioned to believe that they couldn't escape.</span>

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3 years ago
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Qual a função da membrana plasmática na defesa contra o corona vírus?
Airida [17]

Answer:En los metazoos, la autodefensa celular se sinergiza con todo el cuerpo ... contra diversos virus envueltos que incluyen influenza, coronavirus, lentivirus y flavivirus (5, 11). ... Muchos virus envueltos "brotan" de la membrana celular, y varios ... Aunque la función precisa de la mayoría de las galectinas sigue siendo

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seropon [69]
There are choices for this question namely:
<span>
Leukopenia
Weight gain 
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The correct answers are "weight gain", "hepatomegaly" and "jugular vein distension". Along with bipedal edema, these signs are associated with the complication of COPD which is called <em>cor pulmonale</em>. Cor pulmonale is a kind of right sided heart failure wherein blood pools to the systemic circulation because the right side of the heart cannot overcome the pulmonary vascular resistance brought about the COPD. Pooling of blood in the systemic circulation causes bipedal edema, hepatomegaly (cardiac cirrhosis; congestion of the liver), weight gain (increased interstitial fluid volume), and jugular vein distension. </span>
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