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Bingel [31]
3 years ago
13

Bacteria can be classified by shape. For the following bacteria species, give their basic bacterial shape.

Biology
1 answer:
Ugo [173]3 years ago
7 0

Streptococcus pyrogenes : Round (or) Ovoid

Paenibaccilus polymyxa:

Aquaspirillum bengal: Helical

Explanation:

  • Streptococcus pyogenes are gram positive, Round shaped, Anaerobic growth bacteria, Non-motile bacteria.
  • Aquaspirillum bengal is helical  in shape with  its composition of  deoxyribonucleic acid  and cytosine. It is Gram negative and chemo-organotrophic. It is also motile with the help of flagella.
  • Paenibacillus polymyxa is also known as Bacillus polymyxa which is  capable of fixing nitrogen. It is found in soil, plant tissues and marine sediments. It has a major role in forest ecosystems and potential future applications as a biofertilizer and biocontrol agent in agriculture.
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8. Unlike DNA, RNA
Aliun [14]

Answer:

D

Explanation:

DNA pairs with adenosine, thymine, cytosine, and guanine

RNA pairs with uracil, adenosine, cytosine, and guanine

5 0
3 years ago
Compare sickle cell disease and malaria. compare sickle cell disease and malaria. sickle cell disease and malaria are both genet
Luden [163]
The correct answer is the final option - sickle cell disease and malaria are both potentially lethal diseases. 
The other options are incorrect because sickle cell disease is an inherited disease, but malaria is not - it is an infectious disease. However, both of these disease are quite dangerous, and may have severe consequences (such as death) if they are not properly treated.
5 0
3 years ago
Which gland produces T3 and T4?
Leokris [45]

Answer:

<em>1. The gland that produces T3 and T4 is the </em><em>thyroid</em><em> (first option). </em>

<em>2. True. The </em><em>adrenal gland</em><em> produces and allows the secretion of the hormone involved in the fight and flight response. </em>

<em>3.The symptom that is not correctly matched with the organ system is joint pain, which is related to the joint system, not the skeletal system.</em>

<em>4. False. </em><em>Negative feedback loop</em><em> inhibits the production and release of hormones.The symptom that is not correctly matched with the organ system is Joint pain - skeletal system</em>

Explanation:

1. Thyroid gland is a small organ of no more than 30 grams found in the neck, in front of the trachea. This gland produces thyroglobulin, which when joined with iodine can synthesize triiodoythyronine (T3) or thyroxine (T4).

The main function of the thyroid gland is the regulation of organic metabolism, while it can also mediate the body's response to other hormones.

2. Adrenal gland is located in the upper pole of each kidney and is responsible for the secretion of several substances that help with the body's activity.

In the gland's marrow, a substance called adenaline is produced, with properties such as hormone and neurotransmitter, one of the main substances produced to deal with stress and the adaptation response called fight and flight.

The adrenaline produced in the adrenal medulla can strengthen muscles, increase heart rate and blood pressure, and increase the body's resistance to the presence of stressors or threats to physical integrity.

3. Joint pain is related to inflammation of the joint soft tissues, which belong to the joint system. Unlike joint pain, bone pain occurs as a result of injury to the periosteum -the thin membrane that covers the bones- which is related to the skeletal system.

Painful inflammation of the joints is called arthritis, and is one of the main causes of disability to perform normal body movements.

4. <u>Feedback is a control mechanism of the endocrine system</u>. Negative feedback loop occurs in response to a stimulus, resulting in the inhibition of mechanisms that promote the synthesis and release of substances.

An example of negative feedback is the sufficient production of thyroid hormones, which sends a signal to the hypothalamus, which in turn inhibits the production of TSH - thyroid stimulating hormone - at the level of the pituitary gland. If the pituitary does not release TSH, production of thyroid hormones ceases.

Learn more:

Thyroid feedback loop brainly.com/question/4967372

4 0
3 years ago
3. How is scientific knowledge different from other types of knowledge?
ehidna [41]
Scientific knowledge is knowledge that is 100% accurate and proven. other knowledge such as possibly prior knowledge is from ones own experience which may not be proven 100% correct. along with every other type of knowledge.
6 0
3 years ago
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Two women are involved in an argument. The first woman says to the other, "If you don't shut up, I will kill you!" The second wo
Nastasia [14]

Answer:

domestic assault

Explanation:

4 0
3 years ago
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