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nlexa [21]
3 years ago
13

About 99% of the solid Earth is made up of

Biology
2 answers:
Alex_Xolod [135]3 years ago
7 0
It is D the answer is D
scZoUnD [109]3 years ago
4 0

Answer:

I think it is ddddddddddd

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Las bacterias están presentes en todos los alimentos ¿Qué ocurrirá con su metabolismo si refrigeramos o congelamos el alimento?
kozerog [31]

Answer:

Si refrigeramos o congelamos el alimento, las bacterias presentes en ellos tendrán un metabolismo más lento, incluso llegando al punto de la muerte por encima de temperaturas a las cuales no les es posible vivir. Es importante mantener la cadena de frío para que las bacterias no tengan lugar a su reproducción.

Explanation:

Las distintas bacterias que pueden estar presentes en los alimentos tienen distintos parámetros que hacen que sea posible su vida y reproducción. En cuanto a la temperatura, es un factor muy importante ya que podemos encontrar bacterias termolábiles o termoresistentes según puedan vivir en las variaciones de temperatura. La mayoría de ellas no resiste temperaturas frías de refrigeramiento o congelamiento, motivo por el cual los alimentos se conservan así. De esta forma reducimos el riesgo de padecer Enfermedades de Transmisión Alimentaria. La cadena de frío por su parte permite que esa temperatura sea constante a lo largo de todo el procesamiento, transporte y disposición de los alimentos.

6 0
2 years ago
If alleles of two different genes assort independently during gamete formation then what should be the phenotypic ratio in the F
Pepsi [2]

Answer:

9:3:3:1

Explanation:

If alleles of two genes separate randomly during anaphase-I of meiosis, some new combinations of the alleles are formed in the gametes. A heterozygous genotype for two loci (let's support TtRr) produces a total of four types of gametes in 1:1:1:1 ratio (TR, Tr, tR, and tr). The random fusion of these gametes from two double heterozygous parents (TtRr x TtRr) gives a phenotype ratio of 9:3:3:1. Here, 9/16 F2 progeny exhibit dominant phenotype for both loci while 1/16 exhibits recessive phenotype for both the genes. Rest 3/16 and 3/16 F2 progeny express dominant trait for one gene and recessive for the other.

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