Answer:
Sympathetic nervous system
Explanation:
The sympathetic nervous system of the autonomic division prepares the body for stress or emergency conditions by generating the “fight-or-flight” responses. The sympathetic nervous system triggers the release of stress hormones from the adrenal medulla to generate the set of physiological responses.
There is dilation of the pupil, and an increased rate of heartbeat and increased blood pressure. Other responses include dilation of airways and dilation of blood vessels that supply blood to skeletal muscles, heart muscles, liver, etc. Under the given emergency condition, the sympathetic nervous system of Meghan was activated to generate the fight or flight response.
The population will later, cease to exist.
Since the population is experiencing (about) the same rates of immigration and emigration, these 2 factors will not change anything.
A low birth rate and a high death rate means that more people are dying than being born.
Therefore the population will decrease until there is nobody and it will cease to exist.
A blue shift is any decrease in wavelength, with a corresponding increase in frequency, of an electromagnetic wave; the opposite effect is referred to as red shift. In visible light, this shifts the color from the red end of the spectrum to the blue end.
Answer:
I'd say it's The discovery that all protists come from one common ancestor.
Explanation:
Based on some quick research, The current attempts of classification focus on grouping protists into between three and ten kingdoms, based on species’ common evolutionary ancestors.
Answer:
Explanation: Although cellular respiration has multiple parts, the basic chemical equation is:
Answer: Oxygen
Explanation: Oxygen + Glucose (sugar) = Carbon Dioxide + Water + Energy (ATP)
This equation is often broken into two parts, the reactants and the products. Reactants are the molecules that begin cellular respiration, in this case that would be oxygen and glucose. Products are what forms during cellular respiration. Here, the products are carbon dioxide, water, and energy. As the focus of this lesson is on the reactants of cellular respiration, oxygen and glucose, let's take a look at those.
Reactants--
The first reactant in the equation for cellular respiration is oxygen. Most people are familiar with oxygen since it's the primary gas needed for sustaining our lives. We obtain oxygen by simply breathing. Oxygen is highly reactive and therefore perfectly suited for driving chemical reactions such as cellular respiration. However, people may be less familiar with the second reactant in our respiration equation: glucose.