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ASHA 777 [7]
3 years ago
11

A person's blood type is determined by the presence and absence of specific antigens on the cell membrane. Which of these would

Chemistry
1 answer:
sukhopar [10]3 years ago
5 0

Answer:

C - no antibodies

Explanation:

I dont think there is any blood type without antibodies

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A gas at 29.4 kPa is cooled from a temperature of 75°C to a temperature of 25°C at constant volume. What is the new pressure of
kirill115 [55]

<span>To solve this we assume that the gas inside the balloon is an ideal </span>gas. Then, we can use the ideal gas equation which is expressed as PV = nRT. At a constant volume pressure and number of moles of the gas the ratio of T and P is equal to some constant. At another set of condition, the constant is still the same. Calculations are as follows:

 

T1/P1 = T2/P2

P2 = T2 x P1 / T1

P2 = 25 x 29.4 / 75

P2 = 9.8 kPa

7 0
3 years ago
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Defibe brefily Why do plants produce secondary metabolites?​
AleksandrR [38]

Explanation:

Secondary metabolism produces a large number of specialized compounds (estimated 200,000) that do not aid in the growth and development of plants but are required for the plant to survive in its environment. Secondary metabolism is connected to primary metabolism by using building blocks and biosynthetic enzymes derived from primary metabolism. Primary metabolism governs all basic physiological processes that allow a plant to grow and set seeds, by translating the genetic code into proteins, carbohydrates, and amino acids. Specialized compounds from secondary metabolism are essential for communicating with other organisms in mutualistic (e.g. attraction of beneficial organisms such as pollinators) or antagonistic interactions (e.g. deterrent against herbivores and pathogens). They further assist in coping with abiotic stress such as increased UV-radiation. The broad functional spectrum of specialized metabolism is still not fully understood. In any case, a good balance between products of primary and secondary metabolism is best for a plant’s optimal growth and development as well as for its effective coping with often changing environmental conditions. Well known specialized compounds include alkaloids, polyphenols including flavonoids, and terpenoids. Humans use many of these compounds for culinary, medicinal and nutraceutical purposes.

I hope it's helpful!!

7 0
3 years ago
What is the different types of technology used for cloning animals?
gayaneshka [121]
There are three types of artificial cloning:
Gene cloning: copies a few segments of DNA or genes.
Reproductive cloning: it copies the whole animal.
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What's the force between two moving objects that are touching called
m_a_m_a [10]
I think it is friction.
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4 years ago
How do the circulatory, respiratory, or digestive systems work together?
Alexandra [31]

Answer:

by pumping blood throughout the body.

Explanation:

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3 years ago
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