An element is also a pure substance. The reason for this is because an element contains only one type of particle.
Option A is correct
A) the brain sends a chemicals signal to the heart to increase its rate of pumping
Answer: Decrease the amount of animal waste that reaches the water supply.
A fecal coliform is an anaerobic, rod shaped and gram-negative bacteria. It originates in the intestines of warm blooded organisms. It is released in the fecal matter of humans and animals. This bacterial strain is a chief contaminant of water body. The waterborne diseases associated in humans because of this bacterial strain includes infection of ears, bacterial and viral gastroenteritis, typhoid fever and hepatitis A. The bacterial strain is added to water body by discharge of human sewage, pet animal feces runoff and agricultural wastes including animal fecal based manure runoff.
Therefore, by decreasing the amount of animal waste that reaches the water supply is an appropriate action that Florida farm could take to reduce fecal caliform in nearby water supplies.
Answer:
A.) dandelions with seeds dispersed by the wind
Explanation:
B. Sweat glands have special channels through skin
Explanation - The upper layer of skin is made up of epidermis and dead cells which is impermeable to water. However, we are able to sweat during hot weather because the sweat glands have specific opening on the surface of the skin called as pores.
The sweat is discharged through these pores. Sweat also has dissolved salts in it but it does not allows it to diffuse through the skin rather it helps in maintaining the osmoregulation of the body.