Answer:
Two species (B & C) are more closely related to one another than either one is to a third species (A) if, and only if, they share a more recent common ancestor with one another (at Time 2) than they do with the third species (at Time 1).
Explanation:
Answer: Stem cells are like baby cells that haven’t decided what they want to be yet, so they could become anything. The other cells in our body already have either DNA to be a skin cell, muscle cell, kidney cell, red blood cell (to carry oxygen which binds to hemoglobin in the RBC), or a WBC (which helps fight off infections such as bacteria and viruses). I hope that this helps. Misty RN, BSN
Explanation:
Diploid sporophytic generation alternating with haploid gametophytic generation <span>phrases characterizes alternation of generation in algae.</span>
Answer:
Production of ATP via oxidative phosphorylation require an intact mitochondrial membrane because of the creation of an electrical potential.
Explanation:
Oxidative phosphorylation is a method, in which energy is converted into ATP by a sequence of protein complexes located inside the mitochondrial inner membrane. Production of ATP through oxidative phosphorylation requires an intact mitochondrial membrane because a change in electrical charge between both sides of the inner mitochondrial membrane results in the creation of an electrical potential. The protons have accumulated on the exterior of the mitochondria, making it positive (H), while the protons have been lost within, making it negative. On each surface of the membrane, a differential or gradient in chemical concentration has been formed. The cell transmits the energy stored in the decreased NADH and FADH via the electrochemical gradient.
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Answer:
None of the options provided is correct but some are close
Explanation:
One of the ways in which a cell maintain homeostasis is by regulating what goes in and out of the cell through the cell membrane (which is a semi-permeable barrier). The amount of water is highly regulated by the cell in this case so as to regulate osmosis (movement of water molecules from a region of higher concentration to a region of lower concentration). Other substances regulated are oxygen and carbon dioxide.
NOTE: The cell <u>does not create water molecules neither does it use carbon dioxide to maintain homeostasis</u>, it rather regulates these two compounds.
