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3 years ago

First, describe why an animal is considered a system. Then, explain why an animal is not considered a technological system. ▲

1 answer:

8 0

A system is a group of organs that work together and provide an organism with an advantage for survival. It is the most complex organization in your body and the final level of the progression from cells to tissues to organs and then systems.

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Select four of the most innovative sustainable farming practices. efficient irrigation systems minimal use of fertilizers integr

irakobra [83]

Answer:crop rotation efficient irrigation systems minimal use of fertilizers soil and water conservation

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3 years ago

Contrast the electron transport chain in photosynthesis with the one in cellular respiration by identifying sources of the high-

nlexa [21]

Respiration:

The respiratory chain detailed here is that of mammalian mitochondria:

NADH → NADH dehydrogenase → ubiquinone (coenzyme Q10) → coenzyme Q-cytochrome c reductase → cytochrome c → cytochrome c oxidase → O2;

succinate → succinate dehydrogenase → ubiquinone (coenzyme Q10) → coenzyme Q-cytochrome c reductase → cytochrome c → cytochrome c oxidase → O2.

It consists of the following elements:

The high transfer potential electrons of NADH are transmitted to coenzyme Q10 (ubiquinone) by NADH dehydrogenase, or complex I. Reduced coenzyme Q10 is ubiquinol Q10H2.

The electrons with a high succinate transfer potential are transferred to coenzyme Q10 by succinate dehydrogenase, or coenzyme II, also giving ubiquinol Q10H2.

Ubiquinol Q10H2 transfers its electrons to two cytochromes c under the action of coenzyme Q-cytochrome c reductase, or complex III.

Four cytochromes c each transfer their electron to an oxygen molecule under the action of cytochrome c oxidase, or complex IV. Two molecules of water are formed.

Each of these four respiratory complexes has an extremely complex structure partially included in the internal mitochondrial membrane. Apart from the complex II, they are proton pumps. The electrons circulate between these structures on liposoluble or hydrophilic electron transporters depending on the case.

Photosynthesis:

Photophosphorylation is the equivalent, for photosynthesis, of oxidative phosphorylation for cellular respiration. It constitutes the "light phase" of photosynthesis, that is, it groups together light-dependent reactions.

In plants, photophosphorylation occurs in the membrane of thylakoids, within chloroplasts:

H2O → photosystem II (P680) → plastoquinone → cytochrome b6f complex → plastocyanine → photosystem I (P700) → ferredoxin → ferredoxin-NADP + reductase → NADP +;

cyclic photophosphorylation: (ferredoxin →) plastoquinone → cytochrome b6f complex → plastocyanine → photosystem I (P700) → ferredoxin (→ plastoquinone).

Contrast:

What he has in common is:

*The sequence of several complex membrane proteins transporting electrons.

*The conversion of DNA into ATP.

The differences are in the transport proteins themselves, as well as the direction of H + flux (to the cytoplasm for photosynthesis, and to the mitochondrial matrix in respiration).

8 0

3 years ago

Hydrogenous sediments originate from elements in?

harina [27]

Hydrogenous sediments originate from elements in seawater. Hydrogenous sediments are formed by precipitation of minerals from the ocean’s water or can be formed as a new mineral as a result of chemical reactions between the water of the ocean and sediments that already exist on the ocean floor.

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3 years ago

When students start to feel the accumulating effects of stress, they might look for ways to prevent stress, deal with it, or mas

Otrada [13]

Answer:

Hence, the correct matches are:

A) - 4), 3), 9)

B) - 7) , 5), 10)

C) - 1), 2), 6), 8)

Explanation:

A stressor is a chemical or biological agent, a state of the environment, an external stimulus or an occurrence known to trigger stress to an organism.

Stressor will include 4) breaking up after a long relationship, 9) feeling burdened by academic pressure, and 3) suffering from overly noisy surroundings

Healthy stress management tips are helpful for reducing stress level.

healthy stress management techniques will match 7) practicing yoga a few times per week , 5) watching a sitcom and laughing out loud, preferably with friends , sleeping at least 7 hours per night, and 10) exercising regularly .

detrimental stress management techniques involves activities that harms the human helath and causes stress.

detrimental stress management techniques matches 8) using recreational drugs as an escape , 6) going out and binge drinking in order to blow off steam,2) eating a whole tub of ice cream for comfort , and 1) consuming multiple energy drinks to keep up during all-nighters through finals.

Hence, the correct matches are:

A) - 4), 3), 9),

B) - 7) , 5), 10)

C) - 1), 2), 6), 8)

5 0

3 years ago

PLEASE HELP ANSWER THIS

muminat

Answer:

I think the answer is A but I also feel like it would be C but I go with A because you can see that it is two or more elements in A but not so much in C

7 0

3 years ago