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ludmilkaskok [199]
3 years ago
11

What regulates the menstrual cycle?

Biology
1 answer:
zaharov [31]3 years ago
5 0
Increase and decrease in oestrogen and progesterone.
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Which of the following was originally used to measure bone density?
Alexus [3.1K]

X-rays used to measure bone density.

<u>Explanation</u>:      

The bones density test measured by the X-rays, it measures the content of calcium and other bone minerals that are packed into the segment of bone. Most commonly used parts of bone for testing are spine, hip, occasionally and the forearm. It is generally done to know the chances of osteoporosis. More the bone minerals, more will be density.  More density means the higher bone strength. Before the test, a person should avoid having calcium supplement.

3 0
3 years ago
Is the highness or loudest of a sound
Andrew [12]

I think it is pitch I am not 100% sure

8 0
3 years ago
1 pts
Scrat [10]

Answer:

They waited before crossing a busy street

Explanation:

Assume the graph looks like the one below.

It shows that, from Point B to C, the distance they were from home did not change.  They had stopped.

A possible interpretation is that they waited before crossing a busy street.

If they had begun accelerating, BC would have been steeper than AB.

If they had slowed their walk, BC would still point up. However, its slope would be less than that of AB.

If they had returned home, BC would point down and to the right.

 

4 0
3 years ago
If light-independent reaction can run without light, why does oxygen production stop?
madreJ [45]

Answer:

ask ur teacher

Explanation:

Lol

5 0
2 years ago
¿Cuál fue la aportación de Robert Remak a la teoría celular y su relación con Rudolf Virchow?
horsena [70]

Answer:

Corrigiendo el error de Schwann y preparando el principio de Virchow, señaló que las células se multiplican por escisión de su núcleo, no por generatio aequivoca a partir del protoplasma originario. ... Según los historiadores Pagel (1945) y Ackerknecht (1957), parece que Remak precedió a Virchow en sus descubrimientos.

Explanation:

¡espero que esto ayude!

4 0
3 years ago
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