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stira [4]
3 years ago
7

Which of the following statements about the sympathetic nervous system is true? A. Stimulation of the sympathetic nervous system

generally causes a decrease in blood pressure. B. The only neurotransmitters it secretes are epinephrine and norepinephrine. C. There are three different subtypes of sympathetic nervous system receptors on target organs. D. The nerves exit the central nervous system in the head and from the lumbar spine.
Biology
1 answer:
geniusboy [140]3 years ago
6 0

Answer:

D. The nerves exit the central nervous system in the head and from the lumbar spine.

Explanation:

The preganglionic neurons transmit the nerve impulses through the cranial or spinal nerves that arise from the brain, to the postganglionic neurons from where the nerve fibers that relay these nerve signals to the different viscera and effector organs, located along the spinal cord

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A medical test indicates that a patient has a defective protein. This
OleMash [197]

Answer:

number of nitrogen bases

Explanation:

<em>The correct answer would be the number of nitrogen bases.</em>

<u>A defective protein is usually caused by mutation, which is defined a change in the DNA sequence of an organism.</u>

Mutation can occur in a variety of ways including:

<em>1. Deletion of nucleotide base sequence in the DNA</em>

<em>2. Addition (insertion) of nucleotide base sequence in the DNA</em>

<em>3. Duplication of nucleotide sequence in the DNA</em>

<u>A change in number of phosphate molecules, sequence of subunits DNA and sequence of sugar molecules if possible in nature, do not lead to mutation if the change does not affect the sequence of DNA.</u>

Hence, the correct option is number of nitrogen bases.

6 0
3 years ago
Pitch depends on how fast or slow the object vibrates. True Or False
zalisa [80]

Answer: False

Explanation: Pitch does not depend on how fast or slow an object vibrates.

6 0
3 years ago
What determines the color of soil
shutvik [7]

Answer:

Actually, the main pigmenting (coloring) agents in soils are organic matter, iron, and, to a lesser extent, manganese. When these agents are not covering the mineral grains, the natural color of the grains is visible. Colour is a simple method of classifying soil. Black/dark brown soil usually indicates the presence of decaying organic matter so is generally fertile. Pale brown/yellow soil often indicates that organic matter and nutrients are low and this generally means poor fertility and structure.he colour of the soil varies from one place to the other because soil is formed out of different types of rock . Since rocks are of different colours and textures , the colour of the soil varies from one place to another .

Explanation:

4 0
3 years ago
Un instructor desea preparar un experimento sobre movimiento armónico simple. Sólo dispone de una masa de 2 kg pero tiene una co
Sergeeva-Olga [200]

Answer:

Constante de resorte, k = 19.745 N/m

Explanation:

<u>Dados los siguientes datos;</u>

Masa, m = 2 kg

Periodo, T = 2 segundos

Para encontrar la constante del resorte, k;

Period, \; T = 2 \pi \sqrt {\frac {m}{k}}

Dónde;

  • T es el período.
  • m es la masa del objeto.
  • k es la constante del resorte.

Haciendo k el tema de la fórmula, tenemos;

k = \frac {(2 \pi )^{2}m}{T^{2}}

Sustituyendo en la fórmula, tenemos;

k = \frac {(2 * 3.142)^{2} * 2}{2^{2}}

k = \frac {6.284^{2} * 2}{4}

k = \frac {39.49 * 2}{4}

k = \frac {78.98}{4}

<em>Constante de resorte, k = 19.745 N/m</em>

3 0
3 years ago
(blank) is the thermal energy that flows from one substance to another when the substances differ in temperature.
ladessa [460]

The thermal energy can be defined as the type of kinetic energy which is generated due to the motions of the particles. This motion generates a temperature which can be measured easily. The type of thermal energy which flows from one substance to another when the temperature of the two substances is different is known as heat.

Hence, the blank can be filled with 'heat'.

6 0
3 years ago
Read 2 more answers
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