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dalvyx [7]
3 years ago
15

Some protozoans have special organelles called contractile vacuoles that continually eliminate excess water from the cell. The p

resence of these organelles, and the constant influx of water from the outside environment tells you that the environment
Biology
1 answer:
Hatshy [7]3 years ago
4 0

Answer:

is hypotonic to the protozoans

Explanation:

The constant influx of water from the outside environment of the cell tells that <u>the environment is hypotonic to the cell</u>.

<em>A hypotonic environment is one with a lower solute concentration than the cytosol. Hence, water osmotically moves from the environment into the cells of the protozoans. The water needs to constantly be removed from the cells, otherwise, they will become turgid and lyse away their contents. </em>

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Answer:

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Explanation:

<em>Kindly pardon me: I ain't so sure of the first two answers.</em>

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3 years ago
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Sunny_sXe [5.5K]
Plants and other things that make food for themselves and use the sun to make food
5 0
3 years ago
how would the nervous system function be affected if both the presynaptic and postsynaptic neurons at every synapse had both syn
Ray Of Light [21]

Small, electron-lucent vesicles known as synaptic vesicles (SVs) are grouped at presynaptic terminals. They hold neurotransmitters and exocytosis, which is stimulated by calcium, releases them. After exocytosis, SVs are formed locally at the terminals.

  • From the presynaptic cell with synaptic vesicles to the postsynaptic cell with neurotransmitter receptors, a signal always moves in one direction across the chemical synapse.
  • The correct routing of nerve signals throughout the body is guaranteed by this one-way communication.
  • A signal is transmitted from one neuron—the presynaptic, or sending, neuron—to another neuron—the postsynaptic, or receiving, neuron—at the synapse, increasing or decreasing the likelihood that the postsynaptic neuron will fire its own action potential.
  • The stimulation causes a sensory neuron to go into an action potential, which alters the motor neuron's potential.
  • Excitatory because it tends to depolarize the cell, this potential is known as an excitatory postsynaptic potential (EPSP).

learn more about synaptic vesicles here:brainly.com/question/5865840

#SPJ4

7 0
2 years ago
Which of the following does not rely on active transport to cross the cell membrane? A.calcium ions B.water molecules C.potassiu
shepuryov [24]

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8 0
3 years ago
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spin [16.1K]

Answer: It is important that we use our natural resources so that we use any bad things for our earth

Explanation:

8 0
3 years ago
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