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Shtirlitz [24]
3 years ago
8

Do all cells need ribosomes

Biology
1 answer:
sammy [17]3 years ago
6 0
Yes they do without it they could not produce protein.
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Which property would best distinguish sediment deposited by a river from sediment deposited by a glacier?
Lady bird [3.3K]

Answer:

Which property would best distinguish sediment deposited by a river from sediment deposited by a glacier?

thickness of sediment layers

Explanation:

Glaciers deposit rocks unlike river sediment that are less thicker than glacier's own

7 0
3 years ago
Receptors trigger one of two effector pathways resulting in changes in neuronal activity. These changes will, ultimately, effect
kolezko [41]

Complete question:

Receptors trigger one of two effector pathways resulting in changes in neuronal activity. These changes will, ultimately, effect gene expression. Which effector pathway is characterized by ion flux through transmitter-activated channels resulting in an altered membrane potential and neuronal activity?

A.  Slow effector pathways

B.  Modulated effector pathways

C.  Rapid effector pathways

D.  NMDA glutamate receptor pathways

Answer:

D.  NMDA glutamate receptor pathways

Explanation:

The NMDA glutamatergic receptor is a cationic channel receptor modulated by a ligand that allows the transport of Na+, K+, and Ca2+. Under certain situations, it exhibits particular permeability to Ca2+. The receptor has different regions that are susceptible to modulation by endogenous and exogenous agents. The receptor can be found at most excitatory synapses, where it responds to the neurotransmitter glutamate. During synapsis, the presynaptic membrane releases L-glutamate, which is received by NMDA glutamatergic receptor. The receptor plays a regulatory role because activates signaling cascades that depend on calcium.

These receptors are involved in normal synaptic transmission, in a diverse physiological phenomenon, and might be responsible for neurodegenerative processes.

3 0
3 years ago
1. Name six (6) physical or behavioral characteristics of the cane or bufo toad.
vivado [14]

Explanation:

fast-growing he dyhrhrrhrhgeeggerhjrhrhthtthrhhryr

4 0
3 years ago
alguien que me ayude con esta pregunta por favor cuáles son las enfermedades que se desarrollan lentamente pudiendo durar mucho
Anarel [89]

Answer:

Enfermedad que se desarrolla lentamente, pudiendo durar mucho tiempo o incluso el resto de la vida de una persona. Un ejemplo es la artritis.

Explanation:

Tipo de glóbulo blanco o leucocito que fabrica unas sustancias llamadas anticuerpos, muy importantes en nuestras defensas.

Enfermedades que llevan a la muerte

Las diez enfermedades más misteriosas

Sida.

Alzhéimer.

La causa del alzhéimer todavía es desconocida. Las investigaciones suelen asociar la enfermedad con la aparición de placas seniles y ovillos neurofibrilares. ...

Resfriado común.

Gripe aviar.

Pica.

Enfermedades autoinmunes.

Esquizofrenia.

8 0
3 years ago
WILL GIVE BRAINLIEST !!
QveST [7]

The answer is carbon dioxide.

Hope this helps!!

7 0
3 years ago
Read 2 more answers
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