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Phantasy [73]
3 years ago
11

What would be the optimum wavelength for measuring the absorbance versus concentration of a series of fd&c blue 1 dye soluti

ons?
Biology
1 answer:
melomori [17]3 years ago
7 0
The visible spectrum of FD&C Blue 1 peaks in the 580-750 nm range. The optimum wavelength for measuring the absorbance versus concentration for FD&C Blue 1 is determined from the wavelength of maximum absorbance or lambda max, which has a value of 630 nm.
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The properties of being ____ make a diamond a gemstone
Norma-Jean [14]

Answer:

Clear and bright

Explanation:

4 0
3 years ago
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The Vocabulary of Nutrition for Children, Adolescents, and Older Adults
mario62 [17]

Answer:

1. Picky eating; food jag

2. epiphyseal plates

3. bone mineral density (BMD)

4. obesity

5. food insecurity

6. life expectancy

7. arthritis

8. congregate meal

Explanation:

Picky eating is a behavior in early childhood when they refuse to eat certain foods and only want the same foods, while food jag is when a child only eats a small group of foods, meal after meal. The epiphyseal plate is a specialized layer of hyaline cartilage where chondrocytes (i.e., the only cells found in healthy cartilage) proliferate and differentiate during longitudinal bone growth. Arthritis is an inflammation of the joints caused by different reasons (e.g., injury, genetic causes, infections, immune system dysfunction, etc), whose risk increases with age. Bone mineral density (also known as bone density), is the amount of mineral in bone tissues, being the best manner to measure bone health. Obesity can be defined as an excessive amount of body fat that presents a risk to health. Over the past 30 years, the prevalence of obesity has doubled in children and tripled in adolescents, representing a serious health problem (especially in developed countries). Moreover, food insecurity is a social condition of limited access to food for individuals in a household to live an active, healthy life, which can be used as a metric of how many people cannot afford food. Life expectancy is an estimation of the number of years a person can expect to live in a given country/region. Life expectancy around the world has increased for nearly 200 years especially due to medical progress and access to food. Finally, a congregate meal refers to a healthy meal provided to anyone age 60 or over that encourages older adults' social connections with other persons at the meal sites.

8 0
3 years ago
Help quickly please ill mark brainliest!
Zigmanuir [339]

Answer:

1. homo

2.hetero

3.homo

Explanation:

4 0
3 years ago
Assume a population of purple and white flower pea plants (2000 total plants) is in Hardy-Weinberg equilibrium. The frequency of
lys-0071 [83]

Answer:

a) 0.48

b)

p= 0.4\\q=0.6

c) 720

Explanation:

Given ,

Frequency of white flower plant (p^2) is 0.16

Thus, frequency of dominant white allele (p) is equal to \sqrt{0.16} \\= 0.4

As we that, as per  Hardy-Weinberg equilibrium equation

p+q=1

Substituting the value of p in above equation, we get

0.4+q=1\\q=1-0.4\\q=0.6

a) As per Hardy-Weinberg equilibrium equation

p^2+q^2+2pq=1\\

Substituting the given and calculated values in above equation, we get -

0.4^2+0.6^2+2pq=1\\0.16+0.36+2pq=1\\2pq=1-0.16-0.36\\2pq=0.48

b) The frequency (decimal form) of the dominant allele

p= 0.4\\q=0.6

c) number of homozygous purple flower plants

= frequency of purple flower plants (q^2) * Number of flowers

= q^2 * 2000\\= (0.6^2)*2000\\= 0.36 * 2000\\= 720

8 0
3 years ago
What do you think might be the evolutionary benefit of the milk production regulation mechanism in breastfeeding?
pochemuha

Answer:

The potential mother would be wasting her body's energy and resources constantly producing milk without using it to feed her baby, requiring for her to attain more energy, where she could have just waited until she actually gets pregnant and then start producing milk for her baby once it is close to being or already born.

8 0
3 years ago
Read 2 more answers
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