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Gnesinka [82]
2 years ago
7

Chromosomes attach to spindle fibers by undivided structures called:

Biology
1 answer:
masha68 [24]2 years ago
7 0

Answer:

The centromere is an undivided structure of DNA.

Explanation:

Chromosomes attached to the mitotic spindle via structures called the centromere. The centromere is an undivided structure of DNA. Once the spindle fibers attached, they're able to position the chromosomes for cell division

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Ideally, the nasal septum will devide the nasal cavity equally, but it is common for this partition to be slightly off center. A
boyakko [2]

Answer:

A deviated septum occurs when bone and the cartilage that divides the nose septum become off-center which results in two unequal nasal septum. This makes one nasal chamber smaller and another larger.

This abnormality causes difficulty in breathing because of the congestion and blockage of the smaller nasal cavity. Due to this congestion airflow in the lungs is hindered which results in lack of oxygen and difficulty in breathing.

Apart from difficulty in breathing it can leads to nose bleeding, loud snoring during sleep, facial pain, headache, and in respiratory infections breathing become more difficult.

A deviated septum can develop due to some trauma or during surgery but some people are born with this abnormality.

8 0
3 years ago
The following events are part of endochondral ossification. In which order do they occur?
devlian [24]

The order is calcification of matrix  >> cells differentiate into osteoblasts >> formation of the primary ossification >>  osteoclasts break down the spongy bone >> formation of the secondary ossification (5,3,1,2,4). It is a fundamental process.

<h3>What are osteoblasts?</h3>

Osteoblasts are cells of the bones, which act to generate bone matrix and modulate the process of mineralization of the skeleton.

Endochondral ossification refers to the mechanism through which the cartilaginous bones generate longitudinal growth.

This mechanism (endochondral ossification) is fundamental during fetal/embryo development.

Learn more about endochondral ossification here:

brainly.com/question/5325975

5 0
2 years ago
3. What characteristic(s) are scientists trying to give chickens by cloning?
ira [324]
C . More meat and laying many eggs
6 0
3 years ago
Read 2 more answers
Fill in the blanks.
vivado [14]

Answer:

Proteins are responsible for the <u>mass </u>and <u>fat </u>of much of our bodies (and other organisms). The instructions for making protein are encoded in <u>DNA</u>. These genes provide the sequence of building blocks known as <u>nucleotides</u>. This string of amino acids then folds into different shapes. The structure of proteins determines what a <u>molecule </u>can do. Proteins contain carbon, hydrogen, oxygen, and nitrogen. ​

Explanation:

<em>Kindly pardon me: I ain't so sure of the first two answers.</em>

3 0
2 years ago
Shelled protozoans become a part of _________________ layers
Katarina [22]
Shelled protozoans became part of 7 layers
8 0
3 years ago
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