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victus00 [196]
3 years ago
11

Q 5.9: older skin tends to be dry and broken because

Biology
1 answer:
zvonat [6]3 years ago
3 0
Sebaceous glands shrink in size :) hope that's you out
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The idea that layers of sediment are always deposited horizontally is called_____.
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Answer: The Principle of Original Horizontality

Explanation: The Principle of Original Horizontality states that layers of sediment are at first deposited horizontally below the movement of gravity. It is a relative relationship technique. The precept is critical to the evaluation of folded and tilted strata.

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*Fill in the blank*
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The noncyclic pathway is a FLOW of electrons from water, to photosystem II, to PHOTOSYSTEM I to NADPH. Energy is released  as  ELECTRONS  move through the first electron transfer chain. This energy pumps HYDROGEN IONS  into the thylakoid compartment, and then they power the formation of ATP as they flow back out. Sunlight provides the energy needed to keep this cycle going.

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  1. Luminous energy is trapped by chlorophyll in Photosystem II.
  2. When the pigment molecules absorb light, electrons provided by water molecules get in a higher energy level.
  3. The excited electrons go through the electron transport chain from Photosystem II to a less energetic level in photosystem I.
  4. <em>When the excited electrons leave photosystem II, they are replaced by new electrons extracted from the water molecules. </em>
  5. Luminous energy absorbed move the electrons from the photosystem I to another electron acceptor, from where they get transported again and used to produce NADPH molecules.
  6. <em>When electrons leave Photosystem I, they are replaced by new electrons coming from photosystem II. </em>
  7. When the water molecule breaks down, hydrogen ions remain in the thylakoid lumen, from where they are pumped to the stroma by the ATP synthase.
  8. The released energy is used to produce ATP molecules.
  9. Hydrogen ions go back from the stroma to the thylakoid compartment.

The final products are oxygen, ATP, and NADPH.  

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Related Link: brainly.com/question/13592516?referrer=searchResults

8 0
2 years ago
A city is concerned about global warming in smoke. It wants to reduce the impact of its use of fossil fuels. Explain how the cit
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Answer:

a

Explanation:

i believe it's a but I'm not sure

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What is a benefit that algae provide to humans and other organisms?
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Algae produces a estimated 30-50 percent of the net global oxygen .
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Which best describes the purpose of connective tissue?
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Connective tissue connects or separates other tissues and organs, and usually has little or no cells embedded with collagen or other fibers, Like  cartilaginous, fatty, and elastic tissues.
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