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dlinn [17]
2 years ago
8

how can norepinephrine stimualte the contraction of smooth muscle in one organ and the relaxation of smooth muscle in another or

gan
Biology
1 answer:
shtirl [24]2 years ago
8 0
The two organs have different adrenergic receptors for NE.
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Please help, im stuck. Will mark brainliest
Amanda [17]

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A chemical weathering. if correct then plz mark brainliest!!!!!

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3 years ago
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In dry desert areas poor drainage can lead to a buildup of salt in water supplies. A student performed an investigation to study
saul85 [17]

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B. food production

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In the example above described, salinity conditions (3%) completely prevented radicle development (0 mm). Salinity conditions may alter plant development by inhibiting the uptake of nitrogen, and by limiting water intake. Moreover, it has been shown that the excessive accumulation of chloride ions in plant cells may have toxic effects on plant growth, causing ionic stress and thus leading to nutrient deficiency.

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Which of the following activities would have the greatest impact on the amount of dirt, oil and other contaminants added to the
Ksju [112]

Urban areas are crowded places with many apartments, offices, restaurants, parking lots and shopping centers. Comparing the amount of dirt, wastages and pollutants that are released into streams and lakes by each of these sources, we can conclude that the construction of a shopping mall or parking lot contributes a lot to the addition of the wastage into the streams and lakes

A shopping mall and parking lot in itself occupies a lot of space hindering the air balance and also increasing the traffic in the area and the adjacent areas leading to this area. On the other hand , this construction accommodates hundreds of shops that discards bulks of packaging materials in the form of plastic covers, fabric, card boards and other wastages which will have to be dumped every day.

Apart from this, urban areas have major part of the land covered with roofs and roads thus making all the rain water flow into the sewer and drainages washing out chemical wastes, pet wastes and other garbages into the streams and lakes.

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State three examples of human activities that could endanger botana curus
statuscvo [17]

Botana curus is a plant that produces curus which is a substance that is used to cure different kind of cancer.

This is an endangered species that cannot be grown in the laboratory. The ability to produce curus in the laboratory is not feasible.

The human activities that could have endangered botana curus is:

Pollution: It lead to slow down the rate of growth of the plant.

Overexploitation: The over use of plant for its medicinal purpose.

Habitat: The natural habitat of the plant has been changed due to various human activities.

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3 years ago
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Muscles that perform opposite actions to one another are termed ________.
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Antagonists muscles (e.g. biceps and triceps brachii)
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