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shepuryov [24]
4 years ago
7

Which one of these exhibits dorsal nerve cord at some stage of its development

Biology
1 answer:
Nata [24]4 years ago
7 0

The answer is a bony fish.

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Which of the following identifies this phenomenon and explains how it is formed
Orlov [11]

Answer:

A phenomenon, in a scientific context, is something that is observed to occur or to exist.

Explanation:

Examples of natural phenomena include gravity, tides, biological processes and oscillation.

Social phenomena are those that occur or exist through the actions of groups of humans. there is also difference between it and the natural phenomenon.

<u><em>natural phenomenon</em></u> - all phenomena that are not artificial. phenomenon - any state or process known through the senses rather than by intuition or reasoning.

6 0
3 years ago
Chemists reported observing a reaction at room temperature and standard pressure that, based on the amount of helium detected an
tester [92]

The majority of chemist would not find the claim that this form of helium did not release the same number of neutrons as other helium credible because :

The chemists claim is based on conjecture rather than empirical evidence ( B )

The claim made by the chemists is based on conjecture rather than empirical evidence because nuclear fusion is the reaction between  two light nuclei to form  heavy atomic nucleus ( one or more ) . during the reaction between the nuclei the release or absorption of heat reflects the differences in the masses of the reactants and product. It is not dependent on the amount of neutrons released.  

Hence we can conclude that the claim is not credible because the Chemist claim is based on conjecture rather than empirical evidence.

Learn more : brainly.com/question/18545784

6 0
3 years ago
Help please asap...<br> 2 pagessss<br> will mark brainliest if right
Hatshy [7]

Answer:

cell tissue organ organ syustem organism

iron is required so that red blood cells...

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I almost said the last one but boy you need to read the question properly as digestive system is slipped in there which the ovaries and testes are not part of

Explanation:

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What would be a limiting factor in an ecosystem?
melomori [17]
The answer to your query is- D. U.V. Light and space.
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Surrounds a plant cell, providing support
irga5000 [103]

A cell wall known as cellouse.

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