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elena-14-01-66 [18.8K]
3 years ago
5

Explain why there is no beginning or end to the rock cycle.

Biology
1 answer:
lara31 [8.8K]3 years ago
8 0

Answer:

There's no beginning or end because all rocks on Earth can be influenced by the cycle and develop into new types.

Explanation:

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How can pollution affect the food chains and the food webs
VLD [36.1K]
Pollution can effect the food chain and the food web In many ways. The first of wich is it can kill off animals. A good example of this is marine life.  
7 0
3 years ago
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Woodchucks are rodents that are commonly found in the eastern United States. When winter approaches, they hibernate by reducing
weqwewe [10]

Answer:

It allows them to save energy

Explanation:

Hibernation is a behavioral adaptation that involves physiological changes to survive during wither months. These physiological changes can include a decrease in body temperature, respiratory/heart rate and metabolism. The main purpose for which animals enter hibernation is to conserve energy, thereby surviving adverse climatic conditions and/or periods when food is scarce. Some examples of true hibernators (i.e., animals that enter into a state of minimal activity) include bats, hedgehogs, allies, squirrels, marmots, etc.

7 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
3 years ago
Schizophrenia is more common than multiple sclerosis and muscular dystrophy
koban [17]

Answer:

yes

Explanation:

<u>Schizophrenia:</u> Over 2.2 million people.

<u>Multiple Sclerosis:</u> 400,000 people. Insulin-dependent Diabetes: 350,000 people.

<u>Muscular Dystrophy:</u> 35,000 people.

<em>hope it helps answer the question!</em>

7 0
3 years ago
Can someone please give me an example of a biodiversity law environmental science
masha68 [24]

Biodiversity is variety of life. Bio means life and diversity means change, different forms of life. The world constitute different species of plants and animals. Have a nice day!

5 0
3 years ago
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