Hans Krebs as the scientist who was pivotal in making some type of discovery that led to our understanding of the basic nature of cells.
Hans Krebs (25 August 1900 – 22 November 1981) was a British physician and biochemist born in Germany. He discovered that nutrients are broken down in our cells to release energy for the construction of cells
Answer:
15. C
16. C
17. B
18. ?
19.B
20.A
21.B
Hope this helps, sorry I didn't know 18.
Explanation:
The edible part of onion ( or bulb ) has no chlorophyll because it's present underground & it doesn't performs photosynthesis as sunlight is not available for the bulb. But the shoot part of the onion ( which grows up ) is green and has chlorophyll in it because it performs photosynthesis.
When a person is anxious or fearful, the autonomic nervous system shunts blood away from peripheral veins to the core of the body - TRUE
- Sympathetic stimulation of blood vessels causes arteries and arterioles (resistance vessels) to constrict, increasing vascular resistance and reducing distal blood flow.
- The increased vascular resistance that results from this across the body raises arterial pressure.
- When our bodies shift into superman mode, the second signal is transmitted to the hypothalamus, where it activates our autonomic nerve system,
- which is in charge of the fight-or-flight impulse.
- Our bodies receive an adrenaline boost as well as an increase in heart rate and blood pressure. When you are afraid, you get that rush.
learn more about autonomic nervous system here: brainly.com/question/4143211
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A- true, the term brown bread on a label is guarantee that the bread has been made with whole-grain flour
