Answer:
First, Petra sprays the discolored area with
Fluorescein
, which returns a glowing blue color. However, she knows that this chemical might also turn blue with other substances that contain iron. Subsequently, she uses
Phenolphthalein
, which turns pink, indicating the presence of hemoglobin.
The most upper part of the superior segment would be the brachial region.
Answer:
technology causes change because it will lead to new conclusions in science which will lead to changes in the environment
Explanation:
Skeletal muscle is smooth and is under voluntary movement, which means you control it. Smooth muscle tissue forms the support for your hollow organs. So the correct answer is:
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Skeletal muscle tissue controls voluntary movements, whereas smooth muscle tissue controls involuntary movements.
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Angiosperms are literally known as "flowering plants" and include all the flowering plants. Gymnosperms are seed-producing plants, such as trees that don't have flowers. So that leaves you with ferns and horsetails. Ferns have spores on them that they use to reproduce with, and they do not have flowers.
