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Whitepunk [10]
2 years ago
14

Because plant cells contain both mitochondria and chloroplasts, but animal cells only contain mitochondria, it is thought that e

arly cells gained mitochondria first, before chloroplasts.
True / False.
Biology
1 answer:
Fantom [35]2 years ago
5 0

Answer:

Chloroplast is crucial for photosynthesis not mitochondria...

Explanation:

Chloroplast isn't found in animal cells not because of it's evolutionary choice but because of it's rather different way of energy production. Chloroplast is modified by nature to produce energy using photons or photosynthesis that can only occur in plants but mitochondria does not used photons. It utilizes electron transport chain strategy instead.

Animals would never be able to make their surfaces photosensitive for photosynthesis to occur and produce energy with the help of chloroplasts.

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Cod fry often settle under the bell of some jellyfish species, whose tentacles are poisonous. Name the form of relationship illu
bixtya [17]

Answer:

Explanation:

  • 해파리 (cnidarians) have a worldwide distribution. Despite most being harmless, some species may cause local and also systemic reactions. 처치 of 해파리 envenomation is directed at: alleviating the local effects of venom, preventing further nematocyst discharges and controlling systemic reactions, including shock. In severe cases, the most important step is stabilizing and maintaining vital functions. With some 차이점 between species, there seems to be evidence and consensus on oral/topical analgesics, hot water and ice packs as effective painkillers and on 30 s application of domestic vinegar (4%–6% acetic acid) to prevent further discharge of unfired nematocysts remaining on the skin. Conversely, alcohol, methylated spirits and fresh water should be 조심스럽게 avoided, since they could massively discharge nematocysts; pressure immobilization bandaging should also be avoided, as laboratory studies show that it stimulates additional venom discharge from nematocysts. Most 처치 approaches are presently founded on 상대적으로 weak evidence; therefore, further research (especially randomized clinical trials) is strongly recommended. Dissemination of appropriate 처치 modalities should be deployed to better inform and educate those at risk. Adequate signage should be placed at 바닷가 to notify tourists of the jellyfish risk. Swimmers in risky areas should wear 보호 장비.
3 0
2 years ago
Explain how a tree is considered living it doesn't move
zheka24 [161]
A tree is considered living because it takes in nutrients like other living things. The tree is also made up of cells which all living things are made up of. Trees can also produce offspring. Just like any other living thing.
5 0
3 years ago
Which organism is a fungus-like protist?
Sloan [31]
Slime molds would be a fungus-like protist. They usually use psuedopods to move around. 
7 0
3 years ago
Read 2 more answers
Which of the following is an environmental cost of agricultural
Sindrei [870]

A. More Crop Rotation

*B. Reduced Biodiversity*

C. Reduced Soil Erosion

D. More Cash Crop

4 0
3 years ago
Read 2 more answers
Which of the following is a true statement? a. Mammals were the prominent species just before the extinction of dinosaurs. b. Ma
Angelina_Jolie [31]

Answer:

The correct answer is B.

Explanation:

Option A is wrong. Mammals were not the prominent species before the extinction of dinosaurs because the mammal species that lived during the dinosaurs' era were so small that they only weighed several grams and occupied small areas as their habitats.

Option C is wrong. As dinosaurs became extinct, reptiles and "birds" remained as their descendant which evolved to some of the species that we know today.

Option D is wrong. Pangea started to break up to form the geographic isolation for the diversion of many species around 175 million years ago.

So the correct answer is B. Massive extinction disrupts and changes the food chain in such a big way that it triggers a domino effect that leads to species adapting to their new environment and diversifying thus forming new species in the process.

I hope this answer helps.

5 0
3 years ago
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