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tino4ka555 [31]
3 years ago
14

Which scientist confirmed that all cells must come from pre-existing cells?​

Biology
1 answer:
denis23 [38]3 years ago
8 0

rudolf virchow concluded that all cells must come from pre-existing cells?​

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Ep-28 which is the best precaution against carbon monoxide poisoning?
inessss [21]

The best precaution against carbon monoxide poisoning is to keep air moving through the boat.

Carbon monoxide is a potentially deadly gas that is produced any time a carbon-based fuel burns. If you suspect carbon monoxide poisoning you must do the following: open doors and windows, turn off gas appliances. To determine if a person is poisoned by carbon monoxide you may look for the following signs and symptoms: dull headache, weakness, dizziness, nausea or vomiting, shortness of breath, confusion, blurred vision, loss of consciousness.

6 0
3 years ago
The pathway water takes to reach the xylem cells in which it passes through each cell of the cortex is the ___ route. intracellu
stealth61 [152]
A. Intracellular
The pathway water takes to reach the xylem cells in which it passes through each cell of the cortex is the intracellular route.
5 0
3 years ago
A forest has two groups of plants that appear to be very similar both phenotypically and genotypically. The major difference is
Gennadij [26K]
The basics would be that you'd need to find out if they could exchange genetic information. If not, they couldn't be considered part of one species. Set-up 2 artificial environments so both groups would produce pollen at the same time. Fertilise both plants with the other's pollen. Then fertilise the plants with pollen from their own group. 
Count the number of offspring each plant produces. 
If the plants which were fertilised by the opposite group produce offspring, they are of the same species. You can then take this further if they are of the same species by analysing if there is any difference between the number (and health) of offspring produced by the crossed progeny and by the pure progeny. You'd have to take into account that some of them would want to grow at different times, so a study of the progeny from their first sprout until death (whilst emulating the seasons in your ideal controlled environment). Their success could then be compared to that of the pure-bred individuals. 
Make sure to repeat this a few times, or have a number of plants to make sure your results are accurate. 
Or if you couldn't do the controlled environment thing, just keep some pollen one year and use it to fertilise the other group. 
I'd also put a hypothesis in there somewhere too. 
The independent variable would be the number of plants pollinated. The dependant variable would be the number of progeny (offspring) produced. 
5 0
3 years ago
Can someone help me with this question? Thank you!!
babymother [125]

Answer:18 kcal

Explanation:

Law of ecological pyramid - the production of organisms of each subsequent trophic level is always on average up to 10 times less than the production of the previous one

1800/10=180

180/10=18

6 0
2 years ago
Read 2 more answers
Any will help! Please!!
vodomira [7]
 heeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeeee sorry person
5 0
3 years ago
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