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3241004551 [841]
2 years ago
9

Describe the current beliefs on why people age.

Biology
1 answer:
Lisa [10]2 years ago
8 0
Programmed Theories - it suggests that our body is designed to age and that there is a timeline that our bodies follow, and switch in our genes that switches off over time.

Error Theories - we age because of environmental hazards that our bodies accumulate over time.
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Como se forman las perlas
Kobotan [32]
Hay tees métodos pot los cuales se forma las perlas: naturalmente, culturas, o imitación. En la naturaleza, in irritante como un pará o un grand de arena de abre paso entre el manto y la cáscara de in mejillón, una almeja o una ostra. Leugo, como mecanismo de defensa, la criatura marina comienza a secretar una mucosa com minerales conocidos como nácar, el mismo material del que están hechas las conchas. Con el tiempo, la capa de nácar de acumula y después de varios años, las perlas de agua salada tardan más en formarse, una perla está completamente formada. En el método de cultivo, un irritante se implanta quirúrgicamente en la criatura, esto se conoce como el núcleo, la semilla o “madre de perla”. A partir de ahí sufre el mismo proceso que en la naturaleza. No creo que estuvieras preguntando sobre el proceso para hacer perlas de imitación. No hablo Español, así que esto ha sido traducido por el traductor de google si ay algún problema de traducción. Espero que esto ayude.
5 0
3 years ago
The passage states that organisms that live in fresh water cannot survive in salt water. These organisms will undergo a process
eduard

D) egg in Kayro syrup

Explanation:

An egg in Kayro syrup will experience plasmolysis. During the process of plasmolysis a body loses water to another one at a higher concentration. Fresh water organisms suffers plasmolysis because in salt water, the concentration of dissolved salt in the water is high and this makes the water hypertonic to their body.

  • In a hypertonic solution, the egg will lose water and begins to shrink in the Kayro syrup.
  • The Kayro syrup is hypertonic to the egg and by so doing, it will lose water to it.

Learn more:

Diffusion and osmosis brainly.com/question/5825825

#learnwithBrainly

3 0
3 years ago
Please match the vocab terms
kirill [66]

Sex chromosomes.

Genes.

New alleles.

Mitosis.

Cells from a male and female that may result in an offspring.

Genome.

Mitosis.

Chromosomes.

Gene duplication or gene mutation.

Meiosis.

Offspring.

Stem cells.

Metaphase.

8 0
2 years ago
What is the definition for Allele?
Bumek [7]

Explanation:

One of a number of alternative forms of the same gene occupying a given position, or locus, on a chromosome is allele.

5 0
3 years ago
Read 2 more answers
How does the ductus arteriosus improve the efficiency of fetal circulation?
Bogdan [553]
The ductus arteriousus is a blood vessel that connects the pulmonary artery to the descending aorta. Otherwise known as the ductus Botalli, this structure pumps blood into the fetus' non-functioning lungs from the right ventricle. This blood vessel will close at birth and becomes the ligamentum arteriousum.
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