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Mrrafil [7]
3 years ago
9

Se podría afirmar que las aletas anteriores de las ballenas se pueden comparar con estructuras similares de organismos terrestre

s?
Biology
1 answer:
vodka [1.7K]3 years ago
6 0

Answer:

Las aletas de una ballena y el brazo de un hombre son un ejemplo de órganos homólogos, porque la estructura ósea de las aletas de una ballena es parecida (homóloga) a la estructura ósea de nuestros brazos, debido a que ambas proceden del mismo origen embrionario pero se han modificado para desempeñar funciones ...

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Interstitial cells produce?
Elanso [62]

Answer:

The correct answer is option E (testosterone).

Explanation:

The interstitial cells or Leydig cells are the individual or group of cells present in loose connective tissues surrounding the seminiferous tubules.

They are usually active in the production of dominant sex hormones in males that is testosterone responsible for male secondary sexual characteristics.They produce hormones in the presence of luteinizing hormone (LH) and growth hormone released by the pituitary gland.

The high cholesterol content and crystals of Reinke make the leydig cells appear pale in color.

Thus, option E- testosterone is the correct answer.

7 0
3 years ago
Lsd closely resembles the molecular structure of what ingredient?
Kisachek [45]
The appropriate response is serotonin. LSD is a medication that modifies the client's psyche. This implies it follows up on your mind. This type of medication changes your state of mind, conduct, and the way you identify with your general surroundings. LSD influences the activity of a cerebrum substance called serotonin. Serotonin helps control conduct, inclination, the faculties, and considering
5 0
3 years ago
Suppose an alkane had 8 carbon atoms. How many hydrogen atoms would it have? a. 18 atoms c. 10 atoms b. 16 atoms d. 12 atoms
Delvig [45]
<h3><u>Answer;</u></h3>

A. <em>18 hydrogen atoms </em>

<h3><u>Explanation;</u></h3>
  • <em><u>Alkanes are group of hydrocarbon that are saturated</u></em>. They are saturated in the sense that each carbon atom has maximum number of hydrogen atoms.
  • <em><u>The homologous series of alkanes has a general formula of CₓH₂ₓ₊₂.</u></em>
  • Therefore,<u><em> an alkane with 8 carbons will have; (2×8) +2 = 18 hydrogen atoms. </em></u>Thus, the formula of the hyrocarbon will be; C₈H₁₈.
7 0
3 years ago
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Which of the following plants have swimming sperm
MaRussiya [10]
The answer would be both A and B (: Which is C.
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3 years ago
The _____________ cells in the _________________ of a nephron can cause and increase or decrease in body pH. A. intercalated; co
gayaneshka [121]

Answer:

The intercalated cells in the distal convoluted tubule of a nephron can cause and increase or decrease in body pH.

Explanation:

The renal collecting duct is the nephron segment where the final urine content of acid equivalents and inorganic ions are determined.

Two types of cells regulate the acid-base and volume homeostasis.

Intercalated cells, which express acid-base transporters and vacuolar H+-ATPase, maintain an apropriate acid-base balance and principal cells that express the epithelial sodium channel ENaC and aquaporin 2, regulate electrolyte reabsorption.

Filtered bicarbonate is predominantly reabsorbed from the proximal convoluted tubule about 80% and the remaining bicarbonate is reabsorbed from the thick ascending limb of the loop of Henle, the distal nephron, specifically the distal convoluted tubule & the connecting tubule, and finally the cortical and both the outer and inner medullary collecting duct.

Intercalated cells are enriched in mitochondria, and express proteins involved in transport of proton equivalents such as vacuolar H+-ATPase, carbonic anhydrase II and bicarbonate transporters. There are two types of intercalated cells Type-A and Type-B.

7 0
2 years ago
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