Answer:
A stimulus is an external or internal signal capable of causing a reaction in a cell or organism. Sensitivity to a given stimulus is called tropism or nastia in vegetables and taxis in simple animal forms.
Answer:
c. Adaptive radiation occurs in the presence of competitors.
Explanation:
Adaptive radiation is a process of diversification in which new species are originated from an ancestral species due to changes in the enviroment or deu to pressures such as competition for resources that lead organisms to find new niches. For example, if there are many competitors for the same food source, that pressure could lead some organisms to look for a new food source, that, in turn, can lead to the adaptation of their body to the new food source. For example, bird beaks that were specialized for seeds can be adapted for insects.
Answer:
Respiration occurs when glucose (sugar produced during photosynthesis) combines with oxygen to produce useable cellular energy. This energy is used to fuel growth and all of the normal cellular functions.
Answer:
yes...period
Explanation:
earth is getting hot
ice caps are melting
bugs are starting to die from it more likely bees
Answer:
I think A. gaseous cycles involve elements that are abundantly found in the gaseous state
Explanation: