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KATRIN_1 [288]
3 years ago
14

In animal cells, which structure is thought to produce the spindle fibers that help separate the sister chromatids during anapha

se
Biology
1 answer:
soldi70 [24.7K]3 years ago
4 0

The Centrioles produce the spindle fibers.

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Shana is a competitive athlete who weighs 135 lb. she would like to plan a nutritionally adequate diet that provides enough carb
sashaice [31]

Carbohydrates are your body’s main source of energy. The amount of carbs a man should consume daily depends on his age and activity level. The Institute of Medicine suggests adults to eat at least 130 grams of carbs a day. But If you’re a competitive athlete like Shana, you need additional amount.

<span>A study made by The Academy of Nutrition and Dietetics recommends a 2.3 to 4.5 grams of carbohydrates per pound of body weight each day, to athletes depending on the intensity of training. Therefore,  Shana who weighs 135 lbs, needs approximately  310.5 grams carbohydrates daily for her physical workouts. </span>

5 0
3 years ago
Substance A and substance B are mixed together. To separate the mixture, water is added, and substance A is filtered out. Then,
Sveta_85 [38]

The correct answer would be that substance A is rice, and substance B is sugar.

For substance A to be filtered out, it means that A is a water-insoluble substance and for substance B to be recoverable by evaporating off the water, it means that B is water-soluble.

Thus, A can neither be sugar nor alcohol because neither can be recovered by filtration. Also, B can neither be coffee nor alcohol because they can not be recovered as residue through evaporation of water.

Therefore, the only correct answer is that substance A is rice, and substance B is sugar because rice can be filtered out from water while the water-soluble sugar can be recovered by evaporating the water.

More about separating mixtures here: brainly.com/question/2827008

6 0
3 years ago
Which of the following is NOT an outcome of high population density?
In-s [12.5K]

Answer:

where are the options at

8 0
3 years ago
Tissue culture experiments with PDGF demonstrate that without this substance _____.
Sergeeva-Olga [200]

Answer:

Answer is 2. Fibroblasts fail to divide.

Explanation:

Tissue culture experiment is the experiment where tissues are grown in an artificial medium. This involves the use of growth medium such as agar or broth. This process help to produce needed tissues in a short period of time.

Fibroblasts are cells which are found in the collective tissues, and they produce collagen. The collagen produced by the Fibroblasts play important role in tissue repair. Fibroblasts are regarded as the main cells in the connective tissue.

Note that, PDGF, which is Platelet -derived growth factor in full, is a growth factor regulating cell growth and it's division.

5 0
3 years ago
A(n) ________, or closed, fracture does not break the skin.
NikAS [45]

A simple or closed fracture does not break the skin. This is further explained below.

<h3>What is a closed fracture?</h3>

Generally, a closed fracture is simply defined as a situation whereby the skin hasn't been damaged, even if the bone is cracked.

In conclusion, If the fracture is simple or closed, no blood will be seen on the skin. More detail about this is provided below.

Read more about closed fracture

brainly.com/question/956536

#SPJ12

6 0
2 years ago
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