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erik [133]
3 years ago
6

Select the correct answer.

Biology
1 answer:
erastovalidia [21]3 years ago
6 0
Im pretty sure it’s A, i apologize if this is incorrect
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Which isotope has a relatively short half-life?
beks73 [17]
Oxygen-16 and Carbon-12 are stableisotopes of elements O and C respectively. Hence, they do not have half-lives. But Carbon-14 andUranium-238 are radioactive isotopes. Among them Carbon-14 has relatively short half-life as about 5730 years while Uranium-238 has a long half-life as about 4.5 billion years.

Answer is. uranium-238
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3 years ago
During cellular respiration what is the direct source of the energu used in the cells of consumers?
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Answer:

Consumers use chemical energy from the chemical bonds within organic molecules such as carbohydrates, lipids,  and amino acids.

Explanation:

<u>Heterotrophs are consumers</u>; they ingest or absorb organic matter (lipids, carbohydrates, proteins, etc.)  made by autotrophs or producers for their energy consumption. Autotrophs include plants, bacteria, and other photosynthesizing organisms, while heterotrophs include animals, fungi, protists, and bacteria.

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3 0
2 years ago
Segun la informacion que contenga el nucleo¿Como se pueden clasificar las celulas?​
Digiron [165]

Answer:

En biología celular, el núcleo (pl. Núcleos; del latín nucleus o nuculeus, que significa núcleo o semilla) es un orgánulo unido a la membrana que se encuentra en las células eucariotas.

Explanation:

8 0
3 years ago
How many species belong to family ursidae?
gladu [14]
Above 100 specie family found. . for example dolphins
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3 years ago
Hybridization _____.
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Answer:

The correct answer is: c) usually produces offspring that cannot reproduce.

Explanation:

Hybridization, also knowns as selective breeding, is an <u>artificial process</u><u> that involves selecting parents with specific characteristics in order to obtain an offspring with the same traits</u>.

Hybridization is very common and has been performed by humans for thousands of years: from selective breeding crop plants, to do so with dogs in order to create more desirable breeds.

Option A is incorrect because hybridation does not occur in nature, it is an artificial process.

Option B is incorrect because hybridation often happens when the selected parents are chosen to reproduce (by a human).

Option D is correct because an important amount of hybrids are sterile (for example: mules).

Option D is incorrect as well because the offspring is not identical: it shares a combination of genes from both parents.

3 0
3 years ago
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