Answer:
The correct answer is: the group of 10 people that lifted the barbell with music is the control group.
Explanation:
The personal trainer made an experiment to test her hypothesis. When experiments are being made, is common to have a control group and an experimental group.
The control group is the one that is subjected to the usual conditions, the group that shows what normally happens. The experimental group is the opposite, this group is observed while it goes through an unusual condition that may impact how they perform in the task observed.
<u>The personal trainer thinks that playing music for her clients is of benefit to them, so we can assume that she always plays music during the workouts, which means that the control group is the one that is listening to music while lifting a barbell</u>. The group that worked out without music is the experimental group because they were the ones that performed that activity with a change in their normal environment.
The answer is Ascending order
Answer:
I. The nuclear membrane breaks up.
II. Sister chromatids condense.
III. Sister chromatids align on the metaphase plate.
IV. The cleavage furrow forms.
V. Sister chromatids separate.
Explanation:
Mitosis is divided into 5 stages:
- Prophase
- Metaphase
- Anaphase
- Telophase
- Cytokinesis
The prophase stage is marked by two main events
- <em>Dissolution or breakage of nuclear membrane</em>
- <em>Condensation of genetic materials</em>
Metaphase is marked by
- <em>Alignment of chromosomes (made up of two sister chromatids) on the metaphase plate</em>
- <em>Attachment of spindles to aligned chromosomes at the centromere</em>
Anaphase is marked by
- <em>Initiation of cleavage furrow formation</em>
- <em>Shortening of spindle fibers results in the separation of sister chromatids</em>
- <em>Sister chromatids begin migrating to opposite poles</em>
Telophase
- <em>Chromatids completes their migration to the poles</em>
Cytokinesis
- <em>Nuclear membrane reforms</em>
- <em>Sister chromatids decondense</em>
- <em>Cytoplasm divides</em>
The diagram given here describes the process - The alveolus is a part of the lung and assists with gas exchange. The goal is to get gases into and out of the cells, so they enter our body, go to our lungs and then diffuse into our blood and travel to our cells through our circulatory system.
The alveolus or alveoli are tiny air sacs which is a hollow cup-shaped cavity in the lung parenchyma. It functions as the respiratory unit. It helps in gaseous exchange to and from the lungs.
- The gaseous exchange takes place with these sacs.
- Diffusion is the process that takes place in this exchange
- In this process, oxygen moves from a high concentration area to a low concentration that is alveoli to blood capillaries and then circulates to various cells.
- In the case of carbon dioxide, it reaches near the blood capillaries near the alveoli where it diffuses into the lungs through alveoli.
Thus, the correct description is - The alveolus is a part of the lung and assists with gas exchange. The goal is to get gases into and out of the cells, so they enter our body, go to our lungs and then diffuse into our blood and travel to our cells through our circulatory system.
Learn more about diffusion:
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