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seropon [69]
2 years ago
6

Please help me with this question..asap​

Biology
1 answer:
fiasKO [112]2 years ago
7 0

Answer:

The pollen grain is creating a tube down the style of the flower. <u>It is necessary as that is how the pollen is able to travel down the style into the ovary where the baby seed is located. This is how the seed is fertilized, and is ready for reproduction.</u>

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Due to a mutation in the HEXA gene, a substance called GM2, normally present in the tissues and nerve cells of the brain, accumu
Olenka [21]

Answer:

Lysosomes.

Explanation:

HEXA (Hexosaminidase A) is the functional enzyme and encoded by the HEXA gene. The main function of this enzyme is the hydroxylation of the gangliosides.

The mutation in this gene leads to the lysosomal storage disease. The GM2 starts accumulating in the lysosomes and causes Tay Sach's disease. This is a genetic disorder that leads to the breakdown of the cells of the spinal cord and the brain.

Thus, the answer is lysosomes.

6 0
3 years ago
Texto donde se desarrolle la definicion de seleccion natural. Además, empleem los siguientes terminos: Variabilidad, mecanismo s
SOVA2 [1]

Answer:

la selección natural es el mecanismo principal por el cual la evolución ocurre

Explanation:

Charles Darwin fue un naturalista inglés que propuso la teoría de la evolución o 'descendencia con modificación' mediante el mecanismo de selección natural. Acorde a esta teoría, la selección natural se define como el mecanismo selectivo de reproducción diferencial de los individuos mejor adaptados a su ambiente. La variabilidad es el la materia prima sobre la cual la selección natural actúa, seleccionado aquellos individuos que presentan combinaciones fenotípicas y genotípicas más adaptadas para sobrevivir en un ambiente en particular. Los individuos de una población que son 'superiores adaptativamente' poseen más chances de sobrevivir y reproducirse, y por lo tanto tienen también más probabilidades de transmitir sus genes a la siguiente generación.

8 0
3 years ago
In the diagram of a plant cell below, what is the function of the structure 4?
Alborosie

In the diagram we see a cell plant, with a few structures numbered:

0. Vacuole

,

1. Chloroplast

,

2. Nucleus

,

3. Cell wall

The answer options correspond with the functions of these structures:

0. Vacuole- Has secretory, excretory, and storage roles (B)

,

1. Chloroplast - It makes the photosynthesis (D)

,

2. Nucleus - Serves as the control center of the cell and contains the genetic information (A)

,

3. Cell wall ,- ,Provides structural support to the cell (C)

8 0
1 year ago
Match each step in the nitrogen cycle to its description.
Gwar [14]

Answer:

I have a chart for this if you'd like that it really helps to better understand the Nitrogen Cycle and how it works.

7 0
3 years ago
An apple and a glass of milk can give you more nutrition as compared to the milk shake
Dmitriy789 [7]

Answer:

True

Explanation:

because the milk shake is with cold but milk is hot

8 0
2 years ago
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