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Tanzania [10]
2 years ago
15

Which statements best explains how mitochondria help a cell get the materials it needs?

Biology
2 answers:
kondaur [170]2 years ago
3 0

Answer:

C)they push particles against their natural direction flow

Explanation:

mitochondria main use is to provide energy which helps in pushing the particles

pshichka [43]2 years ago
3 0

Answer:It's D

Explanation:

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Un jardinero cruzó dos plantas de flores rosadas, con la esperanza de obtener plantas con flores del mismo color. Su sorpresa fu
Temka [501]

Answer:

Este es un ejemplo de dominancia incompleta. Es una ocurrencia genética que ocurre cuando un gen dominante no expresa su manifestación completa en el alelo recesivo en un alelo dominante heterocigoto.

Por lo tanto, ambos rasgos se manifiestan, lo que resulta en la combinación de los dos alelos para los colores (blanco y rojo). Se dice que el alelo rojo dominante exhibe un dominio parcial sobre el alelo blanco recesivo, y esto da como resultado el alelo completamente rosado.

De acuerdo con la ley mendeliana, las dos flores rojas son heterocigóticas. Por lo tanto, las flores rojas heterocigóticas dominantes deben ser R. El alelo blanco es recesivo (rr) enmascarado por el rojo R,

Sin embargo, cuando se cruzan los dos alelos heterocigotos rojos:

Los fenotipos están en forma de

RR, (1) rojo Rr Rr (2) rosa rr (1) Blanco.

Esto ocurre porque el alelo rojo dominante no era total / completamente dominante en el alelo recesivo blanco en cada uno, lo que da como resultado un alelo rosa (el tercer fenotipo)

This is an example of incomplete dominance.It is a genetic occurrence  which occurs when a dominant gene does not express it full manifestation on the recessive allele in an heterozygote dominant allele.

Therefore,both traits are manifested which results in the blend of the two allele for colors(white and red).The dominant red allele is said to exhibit partial dominance over the recessive white allele.And this results in the entirely pink allele.

Based on Mendelian law the  two red flowers are  heterozygotes .Therefore, Red heterozygote dominant flowers should beRr.The white allele is recessive(rr) masked by the R-red,

However,when the two red heterozygote alleles are crossed:

The phenotypes are in the form of  

RR,(1) red  Rr Rr(2) pink  rr(1)White.

This occurs because, the dominant red allele was not fully/completely  dominant on the  white recessive allele in each,which results in pink allele(The third phenotype)

Explanation:

4 0
1 year ago
Photosynthesis is the process by which plants and algae use energy from the sun to synthesize which of the following?
bazaltina [42]

Answer:

B. CO2

Explanation:

Photosynthesis is the process by which plants and algae use energy from the sun to synthesize <em>C02</em>

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7 0
1 year ago
Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds that eat
Tresset [83]

Answer:

The bright color of butterflies is a discouraging factor for its prey

Explanation:

Butterflies and caterpillars are easily visible to its prey but still they do not eat any of them. This can be because of two factors –

a) The bright color of these organisms might be a factor that makes them uninteresting (intending to be  tasteless etc.) for their prey

b) The bright color might be a signal to the bird indicating in advance of any harm associated with the butterflies/caterpillar feeding.

Hence , instead the Monarch butterflies have brightly colored orange wings with black patterns on them, making them easily visible to birds, the  birds rarely eat the monarchs

7 0
2 years ago
Animals plants and other photosynthesizing organisms play important roles in the
Oksi-84 [34.3K]
Animals plants and other photosynthesizing organisms play important roles in the nitrogen cycle
4 0
1 year ago
Complete the following analogy regarding cell division.
Georgia [21]
Reproduction of a cell from an existing cell
4 0
2 years ago
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