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monitta
3 years ago
14

as water soaks underground, it first passes through a rock layer that has pores that are mostly filled with air. what zone is th

is called
Biology
2 answers:
expeople1 [14]3 years ago
7 0
This zone is called as the zone of aeration. It is present between the earth's surface and the water table, and its main constituents are the soil and rocks. The pores which are present in this zone are partly filled with water, and may mix up with air, causing aeration.
Bess [88]3 years ago
6 0

It is called the Zone of Aeration.

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On which bone does Zygomatic Process occurs?
Luba_88 [7]

Answer:

Zygomatic Process occurs on temporal bone.

Explanation:

Cheek bone is formed by the zygomatic process. Zygomatic process occurs anteriorly in front of mandibular fossa and posteriorly by external acoustic measles muscle.

Temporal bone is involved in the zygomatic process. The temporal bone extends towards the sides of the skull and lies over the opening of ear. The jugal point is present on the upper side of zygomatic arch.

7 0
3 years ago
Read 2 more answers
Check all that apply as characteristics of myelinated axons. Check All That Apply Myelinated axons transmit nerve impulses via c
stiv31 [10]

Answer:

Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter.

Myelinated axons are more energy efficient than unmyelinated axons.

Explanation:

Neurons are cells that specialize in transmitting messages to each other using a type of electrical signal. These signals carry information from outside your body to the brain, while others are the instructions for the various organs, glands and muscles to carry out functions.

Neurons receive these signals from other neighboring neurons through their dendrites. The signal then travels to the soma of the neuron, which is the main body of the cell, and finally<u> travels down the axon to the synaps</u>e (space between the end of a neuron and another cell). The axon is a neuronal extension through which the electrical signal travels, extending from the soma to other neurons.

<u>There may be layers of myelin, which consist of a layer of fat, covering the axons and where they have the function of acting as insulators to help keep the electrical signal inside the cell, which makes it move faster increasing the speed of transmission of the nerve impulse</u>.

1) Myelinated axons transmit nerve impulses via continuous conduction. FALSE. In the axon, nodes of Ranvier are found at regular intervals along the length of the axon in the myelin sheath that surrounds it. These are small spaces that expose the axon membrane to the extracellular fluid and serve to allow the nerve impulse to travel faster, in a jumping manner and with less chance of error.

2) Myelinated axons transmit nerve impulses in the same manner as unmyelinated axons. FALSE. In an unmyelinated axon, the movement of voltage across the membrane is due to ion flux that is limited by the time it takes for sodium ions to diffuse into the axon. Myelinated axons conduct faster because they are shorter than unmyelinated axons. In the latter, transmission is continuous but slower.

3) Myelinated axons utilize fewer voltage-gated channels than unmyelinated axons of the same length and diameter. TRUE. The action potential conduction jumps from node to node, thereby they need fewer voltage-gated channels. Unmyelinated axons need voltage-gated channels in along the entire axon.

4) Myelinated axons are more energy efficient than unmyelinated axons. TRUE. The rate at which sodium input through one node can depolarize the axon at the next node is related to the current and capacitance across the membrane. Myelinated axons have faster action potential conduction because it jumps from node to node, thereby they use less energy because they don't have to travel the entire length.

5) Myelinated axons would be unaffected by diseases that attack the CNS. FALSE. For example, Multiple sclerosis (MS) is a demyelinating disease of the CNS in which the immune system attacks the myelin sheath or the cells.

6 0
3 years ago
1. Changing environmental conditions, such as temperature or pH, can affect enzyme shape. How would this alter the enzyme's func
valentina_108 [34]

hi <3

changes in the enzyme's shape would decrease its ability to function as this would change the active site of the enzyme, meaning it is harder for it to carry out its job.

this is why we try to keep enzymes in their optimum environmental conditions so they can function their best

hope this helps :)

5 0
3 years ago
Considering the Mendelian traits tall (D) versus dwarf (d) and violet (W) versus white (w), consider the crosses below and deter
Artyom0805 [142]

Answer:

DDWw x Ddww

DdWw x DDww

DDWw x DDww

Explanation:

D for tallness

d for dwarfness

W for violet

w for  white

For Parental Plants that has

tall, violet x tall, white

 The representation will be

DDWW × DDww      (We the apply the mendelian crossing)

This will yield offsprings with the following trait

DDDD × DwDw

DDDD × DwDw

DWDW x WwWw

DdWw x ddww

Ddww x ddWw

DdWw x DdWw

DDWw x ddww

From the above Offsprings

1/2 tall, white and 1/2 tall, violets offspring are

DDWw x Ddww

DdWw x DDww

DDWw x DDww

7 0
3 years ago
How is osmosis different from diffusion
kupik [55]
Diffusion is a spontaneous process in which molecules move with their concentration gradient. For example, if you place food coloring in water, the food coloring will slowly diffuse through the water until the entire solution has been balanced.

Osmosis is specifically the movement of <em>water</em> through a semipermeable membrane - meaning a membrane that can let some substances in but keep others out - and, similar to diffusion, it moves with its concentration gradient. For example, if you place a glucose solution sealed in plastic in water, water will move into the plastic to even out the concentration of glucose in the entire solution because glucose is too large to diffuse freely.

Hope this helped!

7 0
2 years ago
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