Answer:
They have metabolism that evolves on earth, lading to development of cellular respiration and photosynthesis later.
Explanation:
- Chemosynthesis is a biological transformation of carbon molecules and nutrients into organic matter using the oxidation of inorganic compounds. Thus may support life on the surface of Mars and Jupiter.
Sodium
Hope this helped you out :)
Answer:
Ca2+ channels closed, Ca2+ pumps operating slowly: a, c, f
Ca2+ channels open: b, e, h
Ca2+ channels closed, Ca2+ pumps operating rapidly: d, g
Explanation:
Experimental technique: Tracking cytoplasmic Ca2+ distribution after a sperm enters the egg Based on what they knew about the fertilization envelope (a protective layer that forms around the egg when a sperm fuses with it), Steinhardt, Shatten, and their colleagues hypothesized that changes in the distribution of Ca2+ ions in sea urchin eggs are involved in the formation of the fertilization envelope. In sea urchin eggs (as in most eukaryotic cells) the concentration of Ca2+ ions is much higher in the endoplasmic reticulum (ER) than in the cytoplasm. To see how cytoplasmic Ca2+ concentration changes in the egg during fertilization, the researchers injected a Ca2+-specific fluorescent dye into the cytoplasm of unfertilized eggs. After adding sperm to the eggs, they observed the eggs with a fluorescence microscope. The following images show the changes in fluorescence that occurred after a single sperm entered the egg. The fluorescence of the dye increased with increasing cytoplasmic Ca2+ concentration. The green color indicates the region of the cell with the highest fluorescence at that point in time.
Sort the labeled regions of the fertilized egg above based on the status of the ER Ca2+ channels and Ca2+ pumps in that region.
Check the diagram attached.It includes the labeled region
Answer:
A.
Explanation:
I'd honestly say A because let's say you swung your hand in the air very fast once, the air around you would swoosh the other way because of the fast movement as well as it moving forward. So I'd say both directions release energy since movement happened. Correct me if I'm wrong
Maybe this will help not sure how to answer this question