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Step 1: On a sheet of paper, draw a fetus that is near the end of the first trimester. At this stage, an average fetus is about 3 inches and weighs about 1 oz. According to the picture presented in the slide show, draw the likeness of the fetus and draw it to scale the length it is in the womb at this stage of development. Include as many details as possible, adding color to the baby's skin, eyes, and veins.

Step 2: On another sheet of paper, draw a fetus at the end of the 2nd trimester. At this stage, an average fetus is about 14 inches in length and 2 1/4 lbs. According to the picture presented in the slide show, draw the likeness of the fetus and draw it to scale of the size it is in the womb at this stage. Again, include as many details as possible, showing the changes to the limbs, face, and internal structure.

Deer cave cannot support photosynthesis is as not enough sunlight is present. in spite of this, it still has a complex food chain. what is the energy foundation of this food chain?

Which of the following can be assumed about the layers in areas 2 and 4

On a backpacking trip, kenny hikes all day at a steady pace, covering 30 kilometers and burning 4000 calories. at the school track, janelle runs the 100-meter sprint in 13.5 seconds, burning 10 calories. afterward, janelle’s leg muscles are aching and she is breathing hard, while kenny maintains normal breathing all day, even though he burns 400 times more calories than janelle. which two statements offer the best explanation for this phenomenon? a. if the aerobic pathway—cellular respiration—cannot meet the energy demand, then the anaerobic pathway—lactic acid fermentation—starts up, resulting in lactic acid buildup and "oxygen debt." b. aerobic cellular respiration produces more energy, but its use is limited because of lactic acid buildup in the muscles and the resulting "oxygen debt." c. after about 90 seconds of intense exercise, the muscles become depleted of oxygen, and anaerobic respiration can no longer function to produce atp, resulting in "oxygen debt." d. the rate of energy demand determines how the muscles will obtain energy, either from cellular respiration or from lactic acid fermentation if not enough oxygen is present.