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pochemuha
3 years ago
7

The first Clean Water Act of 1972 was significant because it

Biology
2 answers:
Hunter-Best [27]3 years ago
5 0

Answer:It kept the waters clean from polution

Explanation:

Arturiano [62]3 years ago
3 0
It kept the water clean from pollution
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Which structure is common to plant and animal cells? 48) ______a) chloroplast
Lelechka [254]
<span> The answer is <span>centriole</span>

The majority of cells have mitochondrion as they need them for their respiration. Chloroplast is the structure plants use to produce their organic matter, the vacuole is very developed in plant cells and is central where as you usually have many vacuoles in animal cells, and the centriole is usually present in animal cells only as well as the wall of cellulose that wraps up the plant cell.</span>
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What Are Valence Electrons?Why Are Valence Electrons Important?
Kryger [21]
Valence electrons are the electron on the outer energy level and they are important because they tell if that element is compatable

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3 years ago
De acuerdo con lo anterior llene el siguiente cuadro comparativo señalando con x si las células procariotas o eucariotas posee l
Maurinko [17]

Answer:

El cuadro no está presente pero las diferencias principales entre células eucariotas y procariotas son:

Eucariotas:

Tienen núcleo

Tienen organelas

Tienen Vacuolas

Tienen Citoesqueleto

Tienen Cloroplastos

El ADN está asociado a proteínas

El ADN es lineal

Presentan mitocondrias

Presentan un sistema de endomembranas

Procariotas:

No tienen núcleo

No tienen vacuolas

No tienen cloroplastos

No tienen organelas

El ADN no está asociado a proteínas

El ADN es circular

Presenta mesosomas

Explanation:

Las células procariotas son más primitivas que las eucariotas, por ende, sus estructuras son más simples. Las células procariotas están en organismos unicelulares tales como las bacterias, mientras que las células eucariotas están en organismos unicelulares y pluricelulares como en plantas, animales, u hongos. La diferencia más notoria entre ambos tipos de células es la ausencia de núcleo en las procariotas haciendo que el ADN está disperso en el citoplasma mientras que en las células eucariotas, el ADN está dentro del núcleo celular.

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3 years ago
Explain how similarities in the genetic codes of organisms are due to common ancestry and the process of inheritance.
Gwar [14]
Because since their ancestors came before them then they inherit certain beneficial traits that help them survive. Those traits are in the DNA and the animals are evolving to be more fit for the environment that they are in. (hope this helps)
8 0
4 years ago
Name each structure
dusya [7]

Answer:

The organ is the female reproductive organ , the uterus

and the green arrow points to the cervix

7 0
2 years ago
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