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andreyandreev [35.5K]
2 years ago
9

Cetaceans are whales and their relatives. The diagram shows some fossils of cetaceans.

Biology
1 answer:
alexgriva [62]2 years ago
6 0

Answer:

i think it's "C"

Explanation:

because if both have similar structure then just have some relation

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Gekata [30.6K]

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
in order to increase chances of survival in a changing environment, it is important for a species to have
andrezito [222]

Answer:

One key way by which species evolve over time in response to changes in environmental conditions is adaptation by natural selection acting over generations. Characteristics that aid in effective survival and reproduction in the new environment grow more prevalent, while those that do not become less prevalent.

Explanation:

5 0
3 years ago
Sodium chloride, or Na+Cl-, is an example of a molecule whose atoms are held together by which of the following? A. Hydrogen bon
s2008m [1.1K]
<span> D. Ionic bonds...........................................................................</span>
4 0
3 years ago
Read 2 more answers
Jason’s bathroom has two cotton bath mats in it, X and Y. Which bathmat will absorb water more quickly? Explain your answer to p
kondaur [170]

It's an ultra-absorbent bath mat soaks up an impressive amount of excess water quickly and efficiently, to keep your floor clean and slip-free.

Cotton bath mats are some of the most absorbent and comfortable models available. ...

Bamboo mats are durable and stylish.

Teak is a sensible alternative to bamboo.

Microfiber bath mats are reasonably priced and comfortable.

<h3>What is the difference between a bath rug and a bath mat?</h3>

Bath mats are the absorbent, non-skid pads that you throw down in front of your shower or tub. They're specifically made for preventing slips and post-shower puddles. Bath rugs, on the other hand, are fluffier and lend more to the look of a luxurious and guest-friendly bathroom.

Thus, this could be the answer.

To learn more about Bath mats click here:

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4 0
1 year ago
Joanna had a small ventricle septal defect (vsd) repaired when she was 3 years old and has no residual cardiac problems. she is
artcher [175]

In the given case, no antibiotic is needed for dental procedures.  

Based on the updated recommendations from the American Heart Association, there is no need to take a precautionary antibiotic prior to dental proceedings for the majority of people.  

It has been suggested by AHA that only those who are at greatest threat of bad consequences from infective endocarditis needs to get the short-term preventive antibiotics prior to routine dental approaches.  

It has been recommended by the AHA guidelines that various of the people who have taken preventive antibiotics in the past no longer need them, these include the individuals with the conditions, like mitral valve prolapse, ventricular septal defect, bicuspid valve disease, rheumatic heart disease, and others.  


8 0
3 years ago
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