Answer and Explanation:
The correct answer is option B
B. The treated glioblastoma cells were cultured in the presence of an inhibitor from umbilical cord stem cells, but the control cells were cultured without the inhibitor.
B. Science can answer only questions about the natural world.
Both the mushroom and the gecko are heterotrophs: they need to acquire their food from other sources. The tree, on the other hand, is an autotroph--it gains most of its nutritional needs through photosynthesis.
Answer:
Assimilation
Explanation:
This is how plants get nitrogen. They absorb nitrates from the soil into their roots. ... When a plant or animal dies, decomposers like fungi and bacteria turn the nitrogen back into ammonium so it can reenter the nitrogen cycle
Explanation:
Development happens quickly during the prenatal period, which is the time between conception and birth. This period is generally divided into three stages: the germinal stage, the embryonic stage, and the fetal stage.
First or the germinal stage- time span: conception at two weeks
development that occurs: the key steps in establishing a pregnancy
Second or the embryonic stage - time span: third through eighth week
development that occurs: the face, eyes, ears, limbs and bones begin to form
Third or the fetal stage- time span: eighth or ninth week through birth
development that occurs: the vocal cords develop, and the digestive system and kidneys begin to function. spontaneous or unplanned, movements are possible by the end of the third month