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s344n2d4d5 [400]
3 years ago
15

John attaches a ball to a spring

Biology
1 answer:
Serggg [28]3 years ago
3 0

Answer:

Downwards

Explanation:

Im not sure because there's no choices

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Name a hormone secreted by the thyroid gland that acts to lower blood calcium
Sergio [31]

Answer:

Thyrocalcitonin or TCT

Explanation:

Thyrocalcitonin or TCT is a non-iodinated calcium lowering hormone. It is originating from the parafollicular cells or C cells (C for calcium).  

The thyroid gland consists of follicles of cuboidal epithelial cells. These cuboidal cells have a nucleus at the base. These are principal cells responsible for the synthesis of thyroid hormones.

 In between these follicular cells, other high cuboidal cells are present, known as parafollicular cells / C cells. These cells synthesise the hormone TCT. When there is high levels of calcium ions in the serum, TCT will release. This lowers the high level of calcium ions in the blood and plasma to normal level. This is done due to the deposition of calcium in the bone.

4 0
3 years ago
Take points <br>extra 50 points ​
mihalych1998 [28]

Answer:

thanks <3 appreciation to you sir/ madam

peace out

5 0
3 years ago
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What role do genes and chromosomes play in the hereditary process?
uysha [10]

Each gene occupies a specific position on a chromosome. Because genes provide instructions for making proteins, and proteins determine the structure and function of each cell in the body, it follows that genes are responsible for all the characteristics you inherit. These pair up to make a total of 46 chromosomes.

6 0
3 years ago
During ________ the chromosomes, which were distinct and condensed, begin to spread out into a tangle of chromatin. a nuclear en
polet [3.4K]
During telophase in mitosis or meiosis II, where chromosomes which were previously distinct and condensed, de-condense and spread out into a tangle of chromatin. At the same time, the nuclear envelope re-forms around each cluster of chromosomes in each of the daughter cells, and spindle fibres disintegrate.

Chromosomes are unlikely to de-condense and spread out into a tangle of chromatin during telophase I (i.e. Telophase of Meiosis I), since Meiosis is still ongoing, and the genetic material should be in its condensed form during Meiosis II as well. 

Hope this helps! :)
8 0
3 years ago
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Match the rocks with the descriptions.
adell [148]

Answer:

*dark, dense- igneous rocks(gabbro & basalt)

*light colored with mineral crystals- igneous rocks (Rhyolite)

*most common rocks on earth's surface-sedimentary rocks

*found under the oceans- igneous, sedimentary and metamorphic rocks (gabbro, basalt, serpentine, peridotite, olivine and ore minerals)

Please mark me brainliest

6 0
3 years ago
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