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Ivahew [28]
3 years ago
9

BRAINLIEST A corn plant has been genetically engineered. It produces pollen that can make its own toxins. These toxins protect t

he corn plant against pests. What is a likely impact on the environment around the corn plant? A. Bird and butterfly populations around the area may increase. B.The concentration of pesticides in a nearby lake would increase. C. Newer strains of pesticide-resistant pests may develop. D. The carbon dioxide level would increase in the area.
Biology
2 answers:
Dmitry_Shevchenko [17]3 years ago
6 0

Answer:

I answered this with D and it was incorrect.

Explanation:

Airida [17]3 years ago
5 0
It's definitely not A. since the toxins would kill butterflies. B. doesn't seem relevant. C. doesn't make sense because the toxins in the pollen are to protect the corn not to make new strains. So, the answer would be D. The carbon dioxide level would increase in the area. Hope this helps!
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If a sample of DNA contains 25% adenine, what percent Thiamine would it contain
Anna35 [415]

Answer:

25%

Explanation:

adenine and thymine are base pairs so there will be an equal amount of adenine to thymine.

4 0
3 years ago
Imagine you are sitting in a very quiet room when suddenly behind you there’s a very loud bang, like a firecracker exploding.
lisov135 [29]

Answer:

A. I would be startled by the sudden noise and would probably take cover some wheres. B. My nerves in my ears would send a signal to my brain causing my twitching muscle fibers to react quickly and heart might stop for a moment.  C. The heart rate would increase the brain would be aware that there may be more sudden noises or events your adrenaline would be pumping and your quick twitch muscle fibers would probably be tense or contracted ready to make quick sudden movements if necessary and your hairs would stick up i guess as extra senses for if something would touch you.  

Explanation:

not to mention but by the time you are startled your senses would probably be heightened due to you being  aware of your surroundings such as you would be constantly looking around you would hear better and probably move quicker for a short period of time due to pumping adrenaline.

5 0
2 years ago
9. why do mammalian muscle cells perform lactic acid fermentation (instead of, say, ethanol fermentation)?
Crank

Alcoholic fermentation and indeed most forms of fermentation are low-energy producing. The waste products are often medium-sized hydrocarbons/alcohols that, when fully oxidized to carbon dioxide provide more energy.

Cells ferment sugars to lactic acid B. During training. This is why your muscles are sore and sore during exercise. Essentially, building this lactic acid causes your muscles to scream for oxygen and use a simplified fermentation process to meet their energy needs, which is not efficient at all.

Yes, animals will ferment for a short time if they are not supplied with enough oxygen. Humans perform lactic acid fermentation when the body urgently needs a lot of energy. If you sprint as fast as you can, your cells only have a few seconds of ATP stored. When stored ATP is depleted, muscles begin to produce ATP through lactic acid fermentation.

Learn more about Lactic acid here:-brainly.com/question/490148

#SPJ4

8 0
1 year ago
Two phenotypically normal parents have a child with CF. i. What are the genotypes of each parent? ii. What is the probability th
katen-ka-za [31]

To first dive into your question, here are some vocabulary terms that I will be using and will be helpful to you as well.

  • Homozygous dominant (BB): <em>Is not affected by cystic fibrosis</em>.
  • Homozygous recessive (bb):<em> Is affected by cystic fibrosis</em>.
  • Heterozygous (Bb):<em> A carrier for cystic fibrosis</em>.
  • Phenotype (Ex: Having cystic fibrosis): <em>The appearance of an allele pair</em>.
  • Genotype (Ex: bb): <em>The genetic makeup of an allele pair</em>.

We know that if both of the parents are phenotypically normal, there is no way that they can be homozygous recessive (bb), or have cystic fibrosis. We also know that since they have a child with this disease, they can't be homozygous dominant (BB) either. This means that <u>both parents have to be carriers (Bb)</u> in order for them to have a child with cystic fibrosis.

Below I have attached a Punnett square with both of the heterozygous parents.

<em>Each child they have will have a </em><u><em>1/4</em></u><em> or </em><u><em>25%</em></u><em> chance of having cystic fibrosis.</em>

5 0
2 years ago
Both positive and negative feedback play important roles in physiology of __ by providing mechanisms to allow the organism to re
yanalaym [24]

Answer:

homeostatic regulation

Explanation:

edge2020

6 0
3 years ago
Read 2 more answers
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