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Taya2010 [7]
3 years ago
7

Please answer this i'll give you brainliest

Biology
2 answers:
Rainbow [258]3 years ago
5 0

Answer:

sorry if my answer is incoplete.

fgiga [73]3 years ago
3 0
The answer is this your welcome

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As a plant grows, new root hair cells are formed from unspecialised cells.
Marina86 [1]

Answer:

Root hairs appear in the root maturation zone and differentiate from unspecialised cells called trichoblasts.

Explanation:

Root hair arises as a small protrusion surrounded by a cell wall, they are found in the piliferous area; they can originate in unspecialised epidermal cells, in some called trichoblasts. The bump begins to elongate and moves away from the epidermis, forming root hair. The root hairs as they lengthen, it is seen that their content shows a polarized distribution, the apical part is constituted mainly by vesicles secreted by the Golgi apparatus that contain the precursors of the cell wall that are to be released by exocytosis. Trichoblasts can be arranged in different ways, there are roots where any of the cells that are part of the rhizodermis can give rise to a root hair. In other roots, trichoblasts and atricoblasts have been seen to be distinguished alternately along a row of cells.

4 0
3 years ago
A protein containing more than one polypeptide chain exhibits the ________ level of protein structure.
emmasim [6.3K]

Answer:

D.)quaternary

8 0
3 years ago
Describe how the movement of lithospheric plates can lead to evolution in species
quester [9]
<span>as animals get separated from each other, they soon start to adapt to the new environments which is called speciation</span>
7 0
3 years ago
In Drosophila, the genes for body coloration and eye size are on different chromosomes. Normal-colored bodies are dominant to eb
Yuri [45]

Answer:

225 flies

Explanation:

Let gene for body colour : A

Let gene for eye type : B

Parent 1 : normal body and normal eyes = AABB

Parent 2: ebony body and eyeless = aabb

F1 : AABB X aabb = AaBb ( all have normal body and normal eye )

F1 progeny is self crossed given that the two genes are on different chromosomes which means they show independent assortment:

AaBb X AaBb =

A_B_ = normal body, normal eyes = 9

aaB_ = ebony body, normal eyes = 3

A_bb = normal body, eyeless  = 3    

aabb = ebony body, eyeless  =   1

Hence the ratio is 9 : 3 : 3 : 1

Out of the 400 flies:

(9/16) * 400 = 225 flies have normal body colour and normal eyes

7 0
3 years ago
Burning can be
horsena [70]

Answer:

all you will need to understand the basic energy change results the 2nd law predicts. ... We can transform some of it (but not all) into useful work.

Explanation:

3 0
3 years ago
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