The bullfrog and the Northern cricket frog both reside in eastern pine forests and use many of the

Which were the elements to form in the earliest stage of the universe?

Doss [256]

Explanation:

AswerB

hydrogen, helium and lithium

It took 380,000 years for the electrons to be trapped in orbits nuclei forming the first atoms. (which is option B)

6 0

3 years ago

Why does Dr. Davis emphasize that people need to return to their hometowns to work?

tia_tia [17]

Answer: C. he believes returning to get back will inspire others to make changes and do the same

Explanation:

5 0

3 years ago

Different microbes grow in a wide variety of environmental conditions; however, most have preferences for certain temperatures,

lesya692 [45]

Answer:

this is a TRUE statement.

Explanation:

Different microbes grow in a wide variety of environmental conditions; however, most have preferences for certain temperatures, pH, and atmospheric gases because although microbes are widespread in their occurrence,they are found almost everywhere,in the air,water,soil,food,decaying matter,oil deposits,in plants etc.

but their number and their types vary according to the locality and environmental conditions.

Although, some microbes are always present and contribute towards natural flora BUT besides this others are present in specific environments such as some in hot springs bearing very HIGH TEMPERATURE RANGES for example: Thermus aquaticus.

some of them inhabit the acidic or alkaline soil feeding on HUMUS.

Most of the microbes prefer ATMOSPHERIC GASES i.e some require oxygen for their survival .For example: Pseudomonas.

some don't require O2 for survival i.e Spirochete.

IN SHORT, most of the microbes have preferences for various environmental conditions.

5 0

3 years ago

What role do nerve cells play in the human body? They allow the body to react to stimuli. They regulate the exchange of chemical

Alex

The right option is; They allow the body to react to stimuli.

Nerve cells, (also called neurons) are specialized cells that are found in their millions in the nervous system. Nerve cells are created to stimulate other cells in the body. They transmit messages in the form of electrical signals within the body, and they allow the body to respond to stimuli. Neurons are grouped into three types which are; sensory neurons, motor neurons and association neurons.

5 0

3 years ago

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If the tube incubated at 100°C was placed back in the optimum temperature, would a reaction occur?

Paha777 [63]

The optimum temperature of salivary amylase ranges from 32°C to 37°C.This applies to the human body since salivary amylase is suitable to function within these temperatures. After 37°C, the graph then steeply declines as a result of loss of activity. At 50°C and 70°C, salivary amylase is denatured.

5 0

3 years ago