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Karo-lina-s [1.5K]
3 years ago
10

Early sleep research began when researchers noted that physiological changes create _______ that can be measured during sleep.

Biology
1 answer:
dalvyx [7]3 years ago
3 0
Hormones -- such as melatonin and cortisol; the former signals the body to go to bed, while the latter signals for the sleeping person to wake up -- are created by physiological changes.
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What do you think would happen if there was more glucose (sugar) than available NAD+? Explain.
EleoNora [17]

Answer:

n people who have developed diabetes, glucose builds up in the blood, resulting in hyperglycemia. ... And, too much sugar in the bloodstream can cause other types of damage to body tissues, which can increase the risk of heart disease and stroke, kidney disease, vision problems, and nerve problems in people with diabetes.

Explanation:

8 0
3 years ago
Ellis-van Creveld syndrome is a form of dwarfism that is inherited in an autosomal recessive pattern. This particular form of dw
jenyasd209 [6]
A) A textbook definition would be that genetic drift is: a random change in allele frequency caused by a series of chance occurences that cause an allele to become more or less common in a population. In layman's terms, this means that genetic drift happens when luck makes the genetic pool of the population to deviate from what is expected.
B) The cause for this genetic drift is the aformentioned couple. Because amish communities are small and they select partners from their community, having even a couple of carriers of alleles in a community can make the allele freuency much larger than expected; for example, if the community was 100 persons, the percentage would be in the order of 1%, still much larger than the general population. Thus, the cause here is that a small population had a couple of carriers.
C) Sexual reproduction leads to a mixing of alleles from both mother and father and helps diversity. When a population is isolated, the gene pool is fixed and no new genes can come in, reducing diversity. Also some people that have an allele might die, hitting diversity even more. Finally, having a small population creates a strong pressure in some circumstances that leads to elimination of some traits and diversity.
7 0
3 years ago
How is it that a code consisting of only four letters as in dna can specify all the different parts of an organism and account f
LekaFEV [45]

The genetic code can be defined as a set of rules used to encode information from genetic material (DNA or RNA ) into proteins. There are sequences of nucleotide triplets, -codons which specify which amino acid will be added next during translation (protein synthesis). Genetic code consists of 64 codons and this means that some amino acids are specified by more than one codon.

Genetic code has a role to determine amino acid sequence of protein (primary structure of protein). Location and the function of all those synthesized proteins is determinated by regulatory genomic regions (gene regulatory codes).

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3 0
3 years ago
Consider this animal cell.
V125BC [204]

Answer:

1: cell membrane

2. chloroplast

Explanation:

1. the cell membrane is the outer layer of an animal cell since they don't have cell walls

2. only plant cells have chloroplasts

4 0
3 years ago
1. Poison ivy is also known as Rhus toxicodendron. Its species is [1pt]
Nat2105 [25]

Hi There!

1. a. Toxicodendron

2. c. Eukaryotes

3. a. Felis domesticus

4. b. Plantae

5. a. Protist

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Hope This Helps :)

4 0
3 years ago
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