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3 years ago

Easy question. Please answer should include explanation.

Biology

1 answer:

4vir4ik [10]3 years ago

8 0

Rice Plants need to stand in a lot of water for growth. The Borders (bunds) of a rice field have to be Strong to hold the Water. The Farmer Planted Grass Plants on the Borders because, Grass has Fibrous roots which bind the soil of the bund and hold it together.

Explanation : The Answer itself Explains us well about why the farmer planted those grass plants (i.e.) to increase the strength of the soil. We know that Unity and Teamwork are Strong Words. The Soil and Fibrous Roots show us How Strong those Words are!

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According to the all-or-nothing principle, Select one: a. the amount of time a neuron must "rest" in between firing episodes is

Brilliant_brown [7]

Answer:

The correct option is d) once the electrical impulse reaches a certain level of intensity (its threshold), it fires and moves all the way down the axon without losing any intensity.

Explanation:

In the field of biology, the all-or-nothing law can be described as a principle which focuses on the strength with which a nerve or muscle fibre responds to a particular stimulus, this strength being independent of the strength of the stimulus. The functioning of the impulse is just like the trigger of a gun. The more the force of a stimulus, the more will be the intensity of the nerve impulse.

4 0

2 years ago

Which structure is highlighted? proximal convoluted tubule descending loop of Henle distal convoluted tubule ascending loop of H

SVETLANKA909090 [29]

Answer:

distal convoluted tubule

Explanation:

This is the region of the nephron downstream the macula densa ,which extends the to convulence of the collecting duct.Due to response to mineralocoticoid aldosterone they can be categorised as Distal Convoluted 1 and Distal convoluted 2. This steroid hormones is responsible for homeostatic control of hyperkalemia.

The DCT cells are simple cuboidal epithelium.The stained or pointed part of the image represented this possess this shape,they are therefore portion of DCT. Besides the stained cells are located above the glomerulus ()in the cortex as indicated,therefore they can not be the proximal which must be below the glomerulus, based on the shape ascending and descending loop of Henle (despite located in the cortex too).

The functions of the DCT is in the absorption and secretions of ions(majorly ca+,Na+ and chloride ions.By secreting hydrogen and reabsorbing HC03 ions ,the pH of the urine is maintained.

5 0

2 years ago

Please help me asap it should go in 5mins

Olenka [21]

Answer:

loam

i am not 100% sure but logically it's loam

3 0

2 years ago

You are called for a young man who was diving head first off a dock into a lake. Bystanders say he struck his head on the bottom

castortr0y [4]

Answer:

Answer is C. Damage to C3, C4 or C5.

Explanation:

C1 - C7 are used to represent the number of vertebrae found at the cervical region of the vertebrae canal or column. The vertebrae column comprises off various vertebrae that protect the spinal cord,which starts from the neck region to the tail region.

The C3, C4 and C5 are at the midsection of the cervical region of the spine , and they provide support for the neck and the head.

These vertebrae contain nerves which if affected will cause a serious pain. which can actually affect his breathing. Because, the spinal nerves around the spinal cord are linked to the brain.

7 0

3 years ago

During nitrification, _____.

Serga [27]

During nitrification, ammonia is changed back into nitrate.

Nitrification is a three-step process of oxidation of ammonia. It is an aerobic process performed by small groups of autotrophic bacteria (Nitrosomonas, Nitrobacter).
First step- ammonia to hydroxylamine,
Second step-hydroxylamine to nitrite,
Third step-nitrite to nitrate.
Nitrification together with ammonification is part of a nitrogen cycle.

3 0

3 years ago