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2 years ago

If a post synaptic neuron is stimulated to threshold by spatial summation this implies that ________.

1 answer:

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Here is the correct answer that would best complete the given statement above. If a post synaptic neuron is stimulated to threshold by spatial summation, this implies that t<span>he postsynaptic cell has many synapses with many presynaptic neurons. Hope this helps. </span>

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Do you think true water-conducting tissue is a derived character of either embryophytes or green algae? Why or why not?

ludmilkaskok [199]

Answer:

i think true water-conducting tissue is a derived character of green algae?

Explanation:

WHY?

Many characteristics of land plants also appear in algae like both are multi cellular, euks, photosynthetic autotrophs so are brown, red, and certain green algae, plants have cell walls made of cellulose and so do green algae

However, charophytes are the only present day algae that share these traits with land plants

1.Rings of cellulose-synthesizing proteins (circular rings of proteins in plasma membrane that make cellulose of cell wall)

2.Structure of flagellated sperm

3.Formation of a phragmoplast ( group of microtubules known as phragmoplast formes b/t daughter nuclei of a dividing cell, giving rise to a cell plate making cross wall that separates the daughter cells)

Comparisons of both nuclear and chloroplast genes point to charophytes as the closest living relatives of land plants

Land plants are not descended from modern charophytes, but share a common ancestor with modern charophytes

WHY NOT?

The origin of embryophytes, as these multicellular plants arose and conquered the land, was a pivotal event in the history of life on earth. Without embryophytes, there would be no animals or humans surviving on the land portion of our planet. The provide food, habitat, energy, oxygen, protection, and numerous vital other functions for the world's creatures. Human beings also benefit from the aesthetic beauty, medicines, and innumerable products derived from these diverse plants.

8 0

2 years ago

An amoeba, an oak tree, a squirrel, and mildew are all classified in the same:

irina1246 [14]

Domain (Specifically domain Eukarya)

5 0

2 years ago

The theory of plate tectonics is supported by _______. The Eurasian and African plate are pushed away from the North and South A

anyanavicka [17]

Answer:

1. ridges and trenches (either answer is acceptable)

2. mid-atlanitc

3. subduction zone

4. molten

5. oceanic trenches

Explain:

6. Rocks in the ocean eventually get subducted back into earths mantle due to slab pull. New rocks form at mid-ocean ridges as ridge forces two plates to diverge.

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2 years ago

While traveling out of state, Joan was injured after a fall down six concrete steps. She went to the emergency room at the local

sattari [20]

Answer:

ICD-10-CM code: Z48.02

Explanation:

Z48. 02 is a billable ICD code for indicating a diagnosis of encounter for sutures removal.

It is an acceptable code for the year 2020 for filing of HIPAA-involved transactions. The ICD-10-CM code Z48.02 also shows conditions or terms such as removal of sutures done.

8 0

2 years ago

In most cells, there are electrochemical gradients of many ions across the plasma membrane even though there are usually only on

devlian [24]

Answer:

The correct answer is option A, that is, cotransport proteins.

Explanation:

The variable that possesses the tendency to mediate energy based on chemical potential is termed as an electrochemical gradient. The electrochemical gradient is differentiated into two parts, that is, electrical gradient and chemical gradient. Both these forms of gradient take place over the surface of a membrane.

The movement of the majority of the ions takes place by the phenomenon of electrochemical gradients, of which some are found on the surface of the membrane and function as electrogenic pumps. While the gradients of some of the ions are mostly accounted for by the co-transport proteins, as these proteins take part in the movement of ions or molecules through a plasma membrane that involves concentration gradient based on the kind of molecules and movement.

5 0

2 years ago