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Alex787 [66]
3 years ago
5

Duncan was a subject in a clinical study that was designed to determine the effects of certain diets on health. While participat

ing in the study, he had to live in a special medical unit at the university hospital. He wasn't permitted to eat anything other than the synthetic formula diet provided by the researchers. The formula contained vitamins, choline, minerals, animal protein, purified water, and corn starch. Within a few weeks, Duncan developed patches of scaly skin on his arms and legs and bald spots on his head. When _____ were added to his formula, the signs of the nutritional deficiency disappeared.
Biology
1 answer:
Phantasy [73]3 years ago
6 0

Answer:

The missing options are:

- steroid hormones

- carbs

- essential fatty acids

- PHO

The correct answer is essential fatty acids.

Explanation:

Essential fatty acids are the fats that our body can not produce by itself, but that are essential for the function of the body, so we have to consume foods that have these fats, such as fish, oysters, nuts, chia seeds, soybean oil, etc. The deficiency of these fats causes skin problems, alopecia, anxiety, depression, among other things.

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Name this organism? <br><br>Is this organism prokaryotic or eukaryotic?
AlladinOne [14]

Answer:

Prokaryotes

Explanation:

Prokaryotes are organisms that consist of a single prokaryotic cell. Eukaryotic cells are found in plants, animals, fungi, and protists. They range from 10–100 μm in diameter, and their DNA is contained within a membrane-bound nucleus.

...

4 0
2 years ago
Que nombre reciben las articulaciones oseas que unen la cavidad craneal
Gre4nikov [31]
Las coyunturas 
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5 0
3 years ago
Name three types of organisms that are made of plant cells?
ZanzabumX [31]
Mosses,ferns and thallophytes

4 0
3 years ago
What are test tube babies?
garik1379 [7]
Test tube babies are a babies conceived by in vitro fertilization.
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hope this helps :)
3 0
3 years ago
Describe how the functional units for beta carotene, xanthophyll, chlorophyll a, and chlorophyll b are different. be sure to ide
leonid [27]

The pigments have a similar structure of 40 carbon atoms covalently bonded in a chain. Carotenoids contain oxygen atoms in their chemical structure (retinyl functional group) while xanthophyll does not. This makes carotenoids more non-polar compared to xanthophylls, hence move farthest in chromatography paper using a nonpolar mobile phase. Chlorophyll pigment, on the other hand, has chlorin rings (which are larger) as functional units hence move slowly in chromatography.

Photosynthetic rates can be measured by either the amount of oxygen they consume per particular time period or the amount of carbon dioxide produced per particular time period. This is conducted while immersed in water so as to measure bubble rate formation in case of oxygen production or the change in water pH in the case of carbon dioxide consumption.

When autumn approaches, the amount sunlight received by the plant is reduced due to longer night than days. Deciduous trees have adapted by losing chlorophyll a and b pigments (most important in photosynthesis) during this time. This leaves a higher amount of the other red and yellow pigments hence making the leaves change from green to yellow-red.

It is believed that this is the result of an ancient endosymbiotic relationship between a protist and a eukaryotic cell. The protist generates energy that the eukaryotic can utilize in its growth and reproduction while the protist is sheltered. This relationship became obligatory symbiosis over time.






8 0
3 years ago
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