Hello!
"B" P<span>unctuated equilibrium.
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But I would hardly call coelacanths "primitive" fishes though for more further information (That's another long story lol), but yeah, the Correct Answer in this case is 100% Option "B".
Hope this Helps! Have A Wonderful Day! :) :D
Answer: Cell dependent antibody responses; cell-mediated immune responses
Explanation: We know that this is an immune deficiency, so it has to do with something in the immune system and its immune cells. The cells of the immune system help to make sure things travel safely as well as the antibodies they produce.
Answer:
light
Explanation:
An abiotic factor is a non-living component in the environment. This can be either a chemical or physical presence. Abiotic factors fall into three basic categories: climatic, edaphic and social. Climatic factors include humidity, sunlight and factors involving the climate. Edaphic refers to soil conditions, so edaphic abiotic factors include soil and geography of the land. Social factors include how the land is being used and water resources in the area. Five common abiotic factors are atmosphere, chemical elements, sunlight/temperature, wind and water.
Temperature and Light

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Temperature of the air and water affect animals, plants and humans in ecosystems. A rise in temperature has the potential to change the way a living thing develops, because it changes the metabolic rate of the organism. All living organisms have a tolerance level for temperature range. For example, a human being would die if he stood out in minus 50 degree temperatures for any length of time. Light exposure often affects the temperature. Areas with direct sunlight are warmer
Capa de la atmosfera mas proxima al planeta tierra, climatologicos Donde se desrrolla La mayoria de los fenómenos. <span>a) ionosfera </span><span>b) estratosfera </span><span>c) exosfera </span><span>d) troposfera</span>
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