The nervous system helps:
Receptors in muscles provide the brain with information about body position and movement.
The brain controls the contraction of skeletal muscle.
The nervous system regulates the speed at which food moves through the digestive tract.
The nervous system regulates respiratory rate
The nervous system regulates heart rate and blood pressure.
Source: https://faculty.washington.edu/chudler/organ.html
Hello Ecool, thank you for asking a question here on Brainly!
You Asked ➤ Certain species of ______ are now recognized as indicators of environmental pollution.
↴ OUR CHOICES ↴
A. Lichen
B. Mushroom
C. Yeast
D. None of the above
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ANSWER ➤A: Lichen
Explanation: Certain species of lichen are now recognized as indicators of environmental pollution because they have a chemical defense strategy in their habitat. Research has shown that half of lichen species will have some type of chemical that is antibiotic. Because of this, they are seen as indicates of environmental pollution.
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<em>- Qamar
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High quantities of nutrients in water from industrial crop fertilizers and animal waste cause excessive aquatic plant growth — a process known as “eutrophication,” which, in turn, causes “hypoxia,” or water that is low in oxygen. Harmful algal blooms (or HABs) occur when aquatic algae grow rapidly out of control.