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Pachacha [2.7K]
3 years ago
9

If all land on Earth was still connected how would this affect biodiversity​

Biology
1 answer:
skad [1K]3 years ago
4 0

Answer:

there would be little to no biodiversity because all the climates would be quite similar making everything in them similar as well.

Explanation:

i pretty much based my answer off of what we know pangea to have been like.

good luck :)

hopefully, this helps

have a great day !!

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In humans alkaptonuria is a metabolic disorder in whichaffected persons produce black urine. Alkapotonuria results from anallele
miss Akunina [59]

Answer:

a) The genotype of her father = "aa".

The genotype of her mother = "Aa".

The genotype of Sally is "Aa".  

b) 1/2

c) 1/2

Explanation:

a) Sally's father has alkaptonuria. So, the genotype of her father is "aa". Her mother is normal. Since her brother is affected by the disease, he should be homozygous recessive (aa). This means that the mother also has one copy of "a" allele and is heterozygous dominant (Aa). A cross between Aa (mother) and aa (father) would give 50% affected progeny with "Aa" genotype. So, the genotype of Sally is "Aa".  

b) The genotype of her mother= Aa

The genotype of her father = aa

Aa x aa = 1/2 Aa (affected): 1/2 aa (normal)

So, if Sally's parents have another child, there is a 1/2 probability that this child will have alkaptonuria.  

c) The genotype of Sally = Aa

Genotype of the man Sally marries= aa (since he is affected with alkaptonuria)

Aa x aa= 1/2 Aa (affected): 1/2 aa (normal)

There is a 1/2 probability that their child will have alkaptonuria.

8 0
3 years ago
Adrenergic synapses release the neurotransmitter in the
zubka84 [21]

Answer:  Sympathetic nervous system.

Explanation:

In the adrenergic synapse, the neurotransmitter is norepinephrine. Adrenergic synapses release the neurotransmitter in the Sympathetic nervous system. This system controls reactions related to Increase brain activity and alertness, Dilation of the pupils, Crystalline accommodation for distance vision, Increased Respiratory and Cardiac Frequency, Vasodilation in the muscles of the legs, Reduction of salivary secretion, gastric and intestinal.

7 0
3 years ago
Which enzyme is mixed with a DNA sample before gel electrophoresis
Svetach [21]

Answer:

Restriction enzyme

Explanation:

  • Gel electrophoresis is a process or a technique in which fragments of DNA  are separated in terms of their sizes.
  • <em><u>The restriction enzyme is mixed with a DNA sample before the process. The restriction enzyme cut DNA at specific points into fragments which can then be separated based on their sizes on an agarose gel.</u></em>
  • When current is applied to the gel DNA move towards the positively charged electrode since DNA is negatively charged, with shorter fragments migrating faster through the gel in comparison with large fragments.
4 0
3 years ago
What adverse effects does covering the land with concrete and asphalt create?
Aloiza [94]
<h3>Adverse effects of covering the land with concrete and asphalt is Natural resources are depleted.</h3>

  • Asphalt is a petroleum-based product. Concrete requires rock, sand and a fabricated cement component to strengthen the material hold the pavement material.
  • Fortunately, industry innovation has led to meaningful progress toward resource conservation.
  • Road construction companies have developed ways to reuse existing concrete and asphalt by remixing it materials.

Learn more about Asphalt and concrete effect on environment here:

brainly.com/question/14718527

4 0
2 years ago
What’s the answer to this problem?
insens350 [35]
It is the third option!
3 0
3 years ago
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