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dsp73
2 years ago
15

Viruses have all of the characteristics of living things except

Biology
2 answers:
antiseptic1488 [7]2 years ago
8 0
It’s A :) because viruses can’t carry cells bc it’s not technically a living thing i think
Nezavi [6.7K]2 years ago
6 0

Answer: I think its cells

Explanation:

Viruses dont have cells

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When crude oil is spilled in the ocean, how is the ecosystem affected? A. The supply of nutrients is increased.
Svetllana [295]
D.  coral reefs and other fish habitats are destroyed

7 0
2 years ago
List three cash crops the europeans wanted the native americans and africans to yield
jeyben [28]

The cash crops are the crops, which has more commercial values as compared to the normal crops. The cash crops are essentially grown for the purpose selling.

The Europeans forced the native Americans and Africans to grow commercial crops, which include cocoa,  peanuts, coffee, sugar,cotton, palm oil, rubber, tea, timber and tobacco. Out of which, tea, cotton and tobacco were the most forced cash crops.

Hence, the correct answer is tea, cotton and tobacco.

5 0
3 years ago
En un cruce entre peces naranjas y peces grises se obtiene una generación (f1) de 50% peces grises . Realice el cruce y explique
Ilya [14]

Answer:

Uno de los progenitores es heterocigoto para color naranja (Nn) y el otro parental es homocigoto recesivo para gris (nn). Al haber una cruza entre un homocigoto recesivo y un heterocigoto, la 50% de la progenie expresa color naranja (Nn), mientras que el otro 50% expresa color gris (nn).

Explanation:

<u>Datos disponibles:</u>

  • Cruce entre peces naranjas y peces grises
  • 50% de la F1 son peces grises
  • Naranja dominante sobre gris

Podemos nombrar el alelo dominante para color naranja <em>N</em>, y al alelo recesivo  para color gris <em>n</em>.

Para que en un cruce entre dos fenotipos distintos, el 50% de la primer camada exprese uno de estos fenotipos, entonces uno de los parentales debe ser heterocigoto, mientras que el otro parental debe ser homocigoto recesivo. De esta forma 50% de la primera generación expresara uno de los fenotipos, mientras que el otro 50% expresará el otro fenotipo.

Supongamos que uno de los parentales lleva el genotipo <em>Nn</em>, y el otro parental es <em>nn</em>.

Cruce:

Parental)      Nn    x     nn

Gametas)   N    n       n    n

Fenotipos) Naranja     Gris

Cuadro de Punnett)      N           n

                            n       Nn         nn

                            n       Nn         nn

F1)  2/4 = 1/2 = 50% de la progenie tendrá genotipo heterocigoto, Nn

     2/4 = 1/2 = 50% de la progenie tendrá genotipo homocigota recesivo,    

     nn

     50% de la progenie será color naranja (Nn)

     50% de la progenie será color gris (nn)

               

3 0
2 years ago
Why do you think that planting new trees and plants is an important part of fighting against deforestation ?
butalik [34]

it is not because trees do not grow fast enough

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3 years ago
In a forest loggers want to clear cut trees without replenishing new growth environmentalists want to protect and owl species po
professor190 [17]

Human- Dominant view

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3 years ago
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