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Dominik [7]
3 years ago
12

When a plant stem bends towards sunlight, what change does auxin promote in the cells on the

Biology
1 answer:
Rina8888 [55]3 years ago
5 0
I think that it would be A translocation
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In a population with two alleles, B and b, the allele frequency of B=0.59. What would be the frequency of the heterozygotes if t
Levart [38]

Answer:

0.483

Explanation:

The given population is in Hardy-Weinberg equilibrium. If the gene has two alleles, the sum total of the frequencies of these two alleles will be one.  

Therefore, the total of the frequency of allele B and frequency of allele b will be 1. f(B) + f(b)=1

If the frequency of allele "B" is 0.59, then the frequency of allele "b" will be=1-0.59= 0.41

The frequency of heterozygous genotype in the population= 2pq

p= frequency of the dominant allele

q= frequency of the recessive allele

So, 2pq= 2 x 0.59 x 0.41 = 0.483

6 0
3 years ago
Which role do ultrafine particles play in dirty air?
topjm [15]

Answer:

They can worsen symptoms for people with breathing difficulties.

Explanation:

Ultrafine particles are small particles found in dirty air. They aren’t filtered due to their very small size. They enter the lungs and cause certain conditions such as oxidative stress, inflammatory mediator release, and could induce heart disease, lung disease and other systemic effects.

People who have breathing difficulties have their case worsened due to these particles.

7 0
3 years ago
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What physical and behavioral adaptations does the Black-tailed Jackrabbit have that help it survive in the chaparral biome?
denis23 [38]
The physical and the behavioral adaptions of the Black tail helped survive the  chaparral biome because the ears for heat dissipation to keep cool.

~Jurgen
3 0
3 years ago
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Part E Your molecular clock model resembles another branching chart, the phylogenetic chart, which you’ve used in this unit. Rev
Nikitich [7]

Answer:

The phylogenetic graph uses several types of variables to be formed, while other models use only one type of variable.

Explanation:

To create a phylogenetic chart, matrices with data on the studied species are used. These data are composed of morphological, chemical and / or genetic information that allow a detailed investigation about the ancestry of each species, in addition to allowing the correct grouping based on this ancestry and evolution.

A phylogenetic graph is different from other molecular models due to the number of data considered by it, since other models, such as the molecular clock, for example, only consider genetic based information.

4 0
3 years ago
What environmental conditions induce oxygen to bind to hemoglobin?
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An environment high in carbon dioxide and high in oxygen induce oxygen to bind to hemoglobin. Another factors are an environment under high pressure and an environment under low pressure. 
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