Most mammals including humans are endothermic. Reptiles and amphibians are ectothermic.
Have a surrounding cell membrane
Answer:
According to bottom-up and top-down control models of community organization, which of the following expressions would imply that an increase in the size of a carnivore (C) population would negatively impact on its prey (P) population, but not vice versa? D) P ← C
Explanation:
A community is defined by all the organisms living in the same area. In nature, theses communities are organized in a bottom-up or a top-down model. Bottom-up control is importante because of the association between many species and the supply of resources from the environment. The sources of top-down control is made of consumers and predators.
A) DNA 1 by chromosomal mutation
DNA 2 by genetic mutation
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The elements that are characterized by the presence of an incomplete d sublevel are called "Transition Elements". The general properties of Transition Elements are; first, they are commonly high melting point metals, second, they have many oxidation states, third, they commonly form colored compounds, lastly, they are also paramagnetic.