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makvit [3.9K]
3 years ago
14

The brain's _____ nucleus regulates the body's circadian rhythms.

Biology
1 answer:
deff fn [24]3 years ago
4 0
The brain's suprachiasmatic nucleus regulates the body's circadian rhythms. The suprachiasmatic nucleus is a minute region of the brain located in the hypothalamus above the optic chiasm, the circadian rhythm is the 24-hour cycle of organisms, related to sunlight and temperature.
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How does the human system of reproduction result in people getting one copy of a sickle cell gene and one copy of a normal gene?
Bogdan [553]

Answer:

Every human has a couple of genes that will be separated when they make gametes. A baby will get one gene from each parent (one sperm and one egg).  

Sickle cell gene is inherited by an autosomal recessive pattern, which means you need both defect genes to get the disease. The person with 1 defect gene can survive and live like normal. This person called a carrier because they carry one defect gene.

Someone that carries one defect gene can come as a result if you cross normal or carrier genotype (AA/Aa) with a carrier(Aa), or with homozygote recessive that carries 2 defect genes (aa). The person will get one healthy gene from the first parent with normal genes, and one defect gene from the second parent.

3 0
2 years ago
Abnormalities present in the cells that line the uterus may prevent the production of offspring by directly interfering with whi
Dmitry [639]

Answer: Implantation

Explanation:

The uterus is the main site for the implantation of the embryo. It is the place where the embryo spends 9 months in the mother.

When the male and female gamete combine they form a zygote. It gets implanted in the uterus and then there is cell division and the development of embryo takes place there only.

Any abnormalities in this region will interfere in the process of implantation.

7 0
3 years ago
3. The picture on the right shows the sequence of nitrogen bases on part
Tresset [83]

Answer: C

Explanation: Thymine pairs with Adenine and Cytosine pairs with Guanine.

7 0
2 years ago
Which is a symptom that requires prompt medical attention?
NikAS [45]
- hallucinations
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4 0
3 years ago
Read 2 more answers
The "supplement facts" panel on dietary supplements resembles the ________________ ________________ and is required on all dieta
olasank [31]

The supplementary fact panel is used for the dietary supplements. This supplement fact panel on the dietary supplements is similar to the nutritional fact panel, which is present on most of the packaged products. The supplementary fact panel denotes the information about the beverage and the benefits of the product are listed under it too.

Hence, the answer is 'nutritional facts on foods'.

4 0
3 years ago
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