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torisob [31]
3 years ago
14

Catastrophic events on Earth have both negative and positive effects. One positive effect is the formation of new land features.

The Hawaiian Islands were formed from a catastrophic event, occurring many times. Each island in the chain is composed of at least one major
Biology
2 answers:
xz_007 [3.2K]3 years ago
8 0
Volcano, I believe. Hope I helped!
irina [24]3 years ago
5 0

glaciers scouring the land and melting

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balandron [24]

Answer:

A converter

Explanation:

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Biogeochemical cycling ensures that
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A chemical substance that an organism requires to live. a nutrient that is scarce or cycles slowly through an ecosystem. ensures that nutrients will be circulated throughout the biosphere.
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Cystic fibrosis is most common in individuals of Northern European descent, affecting 1 in 3200 newborns. Assuming that these al
IgorLugansk [536]

Answer:

0.0177

Explanation:

Cystic fibrosis is an autosomal recessive disease, thereby an individual must have both copies of the CFTR mutant alleles to have this disease. The Hardy-Weinberg equilibrium states that p² + 2pq + q² = 1, where p² represents the frequency of the homo-zygous dominant genotype (normal phenotype), q² represents the frequency of the homo-zygous recessive genotype (cystic fibrosis phenotype), and 2pq represents the frequency of the heterozygous genotype (individuals that carry one copy of the CFTR mutant allele). Moreover, under Hardy-Weinberg equilibrium, the sum of the dominant 'p' allele frequency and the recessive 'q' allele frequency is equal to 1. In this case, we can observe that the frequency of the homo-zygous recessive condition for cystic fibrosis (q²) is 1/3200. In consequence, the frequency of the recessive allele for cystic fibrosis can be calculated as follows:

1/3200 = q² (have two CFTR mutant alleles) >>  

q = √ (1/3200) = 1/56.57 >>

- Frequency of the CFTR allele q = 1/56.57 = 0.0177  

- Frequency of the dominant 'normal' allele p = 1 - q = 1 - 0.0177 = 0.9823

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In conditions of stress or fear, the human adrenal gland may produce adrenaline. Which of the following is an effect adrenaline
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Is a archaebacteria cell wall present or absent
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Archaebacteria have cell wall made of complex composition of peptidoglycan

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2 years ago
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