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alukav5142 [94]
2 years ago
5

write one clear sentence using all the words in the set that demonstrates your understanding of their relationship here are the

words . Spindle, Microtubules, Centrosome and centriole? ​

Biology
1 answer:
SIZIF [17.4K]2 years ago
6 0

Answer:

Microtubules have shapes like a spindle and are arranged to form centrosome and a cluster of such microtubules form centriole.

Explanation:

Microtubules are seen in eukaryotic cells to give shape and structure to the cells and they form part of the cytoskeleton. They are known to grow long and are dynamic. Centrosomes are known to be main microtubule that are found in animal cells. They are organelles that are made from the arrangement of clusters of microtubules. The centrioles are organized microtubules that actually help to serve as skeletal system of the cell. These centrioles  help to determine the locations of the nucleus.

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Serratia marcescens cells produce a red pigment at room temperature. The red color of the colonies is an example of which of the
Oliga [24]

Answer:

The red color of the colonies is an example of <u>a phenotype .</u>

Explanation:

Serratia marcescens -

They are the species ,that are , gram - negative bacteria , rod - shaped ,

they are from the family of Enterobacteriaceae .

Serratia marcescens are mostly found in the urinary and respiratory tracts of the hospitalized adults and in children , in  the gastrointestinal systems .

S. Mercescens are most commonly found in the environment , growing the bathroom and dirt .

It is gram-negative, produces a reddish - orange tripyrrole pigment called the prodigiosin , is an example of phenotype .

7 0
3 years ago
Lotions applied during winter season moisturize the skin very quickly. What could be the reason for this?
MrRissso [65]

The right answer is D.

The absorption of molecules at the level of the skin is carried out by passive diffusion for the molecules of low molecular weight (lower than 400 Da), the skin being covered with a lipoprotein film rich in water by its stratum corneum, rendering it little-permeable.

This absorption may be variable according to factors related to the skin such as stratum corneum's thickness, the state of hydration, the presence of cutaneous lesions or individual variations.

External factors may also modulate percutaneous absorption such as contact time, iontophoresis or the presence of specific adjuvants.

8 0
3 years ago
What happens as humans use more land for development<br>​
Lina20 [59]

Answer:

Humans impact the physical environment in many ways: overpopulation, pollution, burning fossil fuels, and deforestation. Changes like these have triggered climate change, soil erosion, poor air quality, and undrinkable water.

4 0
3 years ago
Read 2 more answers
Mammals whose young develop in a pouch on the mother's body are called
DaniilM [7]
The correct answer is: marsupials.

Marsupials are actually defined by their ability to hold the young in the pouches, where they can be well protected. Some examples are Kangaroos and Koalas.


Other answers are wrong: for example, gymnosperms are plants, not animals.

4 0
3 years ago
"The native structure of hemoglobin (Hb) comprises of two α and two β subunits, each of which carries a heme group. There appear
professor190 [17]

Answer:

The correct answer is option D) "a quaternary protein with four polypeptides".

Explanation:

Hemoglobin is a quaternary protein with four polypeptides. Hemoglobin is comprised of four polypeptides, two alpha chains with 141 amino acid residues and two beta chains with 146 amino acids residues. Hemoglobin is classified as a quaternary protein, because it reaches a quaternary structure when the different polypeptides are attached to each other.

6 0
3 years ago
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