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Luden [163]
3 years ago
8

Why were the high concentrations of DDT in the birds bodies?

Biology
1 answer:
ASHA 777 [7]3 years ago
3 0

Answer:

because chlorinated hydrocarbons accumulate in fatty tissues, when a ton of contaminated fishes is turned into 200 pounds of seabirds, most of the DDT from the numerous fishes ends up in relatively few birds. As a result, the birds have a higher level of contamination per pound than the fishes.

btw :

stay safe! :3

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Plants cannot release energy from glucose using Select one: a. glycolysis. b. photosynthesis. c. the Krebs cycle. d. cellular re
sergey [27]

Answer: Option B) Photosynthesis

Explanation:

It is impossible for plants to release energy from glucose using photosynthesis because photosynthesis results in the formation of sugar molecules such as glucose.

6CO2 + 6H2O --> C6H12O6 + 6O2 + Energy

From the equation, photosynthesis is seen to as a biosynthethic reaction not a catabolic one.

Thus, it produces energy-rich compounds like glucose not otherwise

8 0
4 years ago
I need help asap pls and thank you.
VladimirAG [237]

Answer:

i think it would be A (aka the first answer)

Explanation:

im sorry if im wrong

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Si se aparean especies diferentes como por ejemplo el cruce entre caballos y burros; podemos afirmar que si llegan a tener desce
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Answer:

El híbrido va a ser esteril.

Explanation:

En la cruza entre dos especies distintas, cuando ocurre, existen distintos mecanismos de aislamiento reproductivo, que son barreras que inhiben o interrumpen el flujo génico entre especies distintas. Es decir que no habrá exito reproductivo de estas cruzas. Se trata de caracteres biológicos propios de cada especie que previenen la reproducción con otras especies.

Estos mecanismos de aislamiento reproductivo pueden ser precigóticos o postcigóticos.  

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La mula es producto de la cruza entre dos especies distintas: una yegua (Equus ferus caballus) y un burro (Equus africanus asinus). Es un ejemplo de la accion de mecanismo poscigótico, en el cual se forma un híbrido viable esteril. Este ejemplar puede nacer, crecer y sobrevivir, pero que no puede producir gametas funcionales, por lo cual no puede reproducirse.  

7 0
3 years ago
Which of the following is a reasonable explanation for why unsaturated fatty acids help keep any membrane more fluid at lower te
vladimir1956 [14]

Answer:

Option (E).

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Thus, the correct answer is option (E).

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