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il63 [147K]
2 years ago
10

(blank) occurs due to a genetic mutation in the hemoglobin gene resulting in poor oxygen supply. the patient requires frequent b

lood transfusions
Biology
1 answer:
Elan Coil [88]2 years ago
7 0

Beta thalassemia is a blood disorder that reduces the production of hemoglobin

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Write a paragraph explaining how genetic variation, reproductive strategies and environmental pressures have impacted the surviv
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Answer: Genetics and Pressures

Explanation:

For natural selection to occur, a population must have a wide variety of individuals with different traits. For example, natural selection would not influence fish body color if all individuals in a population were exactly the same color. Variation of scale color can help a fish species have a higher chance of survival by confusing predators as to what species they are.

Reproductive strategies represent a set of behavioral, morphological, and physiological adaptations that facilitate access to potential mates, improve the chances of mating and fertilization, and enhance infant survival. Male peacocks have bright, big tail feathers, for example, to attract females. If an organism has a high appeal, this will make them more likely to be able to meet and continue the survival of the species.

Environmental pressures, such as plant death, could influence the survival of herbivorous organisms. Say a small land creature consisted off grass, and an epidemic killed all the grass in their region. They would either die off, or they would evolve to find different types of food. The former could reduce population, while the latter could increase it.

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2 years ago
Providing immunity by injecting the body with a weakened form a pathogen is known as
blagie [28]

Answer:

vaccination

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The vaccination has been one of the most revolutionary inventions in the medical field. This invention helped protect people from numerous diseases, some being totally neutralized, while some having only minor effects on the human body. The vaccination basically is a way of enhancing the immune system of the body by injecting in it a weakened form of the pathogen. In this way, the weakened form of the pathogen is not capable to harm the body, and the body is not fighting against it, but instead the pathogen becomes part of the body and its defense mechanism, so when the pathogen strikes, the body has a counter attack and defeats it.

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3 years ago
The effect that yellowed or light-green leaves would have on a cucumber or tobacco plant
AURORKA [14]

Answer:

The effect would be that the green leaves, which contain chloroplasts, containing a chemical called chlorophyll would enable the plants to take in more energy in the form of sunlight, enabling the plants to photosynthesise and grow.

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What is the concept of DNA?
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To find out if it's true or not
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Which process is an important part of chemical weathering through oxidation?
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The process that is an important part of chemical weathering through oxidation is oxygen giving up electrons to other elements

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