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alekssr [168]
3 years ago
7

Explain how a population of antibiotic-resistant bacteria might develop from non-resistant

Biology
1 answer:
vladimir2022 [97]3 years ago
3 0

Answer:

More exposure causes mutation in bacteria.

Explanation:

More exposure to the antibiotic by non-resistant  bacteria causes change in its structure against the environment and as a result of that change the bacteria get resistance against that antibiotic. No, farmers should not be allowed to put low doses of antibiotics in  animal feed because it has no effect on the antibiotic-resistant bacteria. The farmer should use another antibiotic on the antibiotic-resistant bacteria which they have no resistance.

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Which tissue acts as a filter on the water absorbed by root hairs?
kap26 [50]

Answer:

endodermis

Endodermal cells filter solutes from water and allow them to pass through to the vascular tissue.

Explanation:

4 0
3 years ago
Which of the following could be discovered by studying the gross anatomy of a cadaver?
snow_lady [41]
<span>Studying the gross anatomy of a cadaver can show an individual the total physiology of a human. By dissecting a cadaver or deceased human, you can study the nervous and cardiovascular system as well as the organs and other internal tissues. For example, muscle origin and insertions on bone, blood supply to the muscle and nervous stimulation of the muscle can be studied. Other areas that can be seen are the location of major organs in the thorax and the blood supply to each of them. The discovery of how the cadaver died can also bee seen during the dissection in many cases.</span>
6 0
3 years ago
Outline what has to occur in the body for a reflex and a voluntary action to occur.
enot [183]

Answer:

For involuntary actions (reflexes) the information is first detected in the sensor and travels along sensory neurons to the spinal cord. Once the action potential reaches the spinal cord, the information is transmitted across the synapse to the motor neuron. for voluntary actions,

movements are commanded by the motor cortex, the zone of the cerebrum located behind the frontal lobe. The motor cortex sends a neural message that moves through the brain stem along the spinal cord and into the neural network to the muscle being commanded.

6 0
2 years ago
Joel is comparing two slides showing chromosomes in a sperm cell and a skin cell of a dog. He finds that the sperm cell has 39 c
leonid [27]
Using the concept that :
<span>The skin cell has twice the number of chromosomes as the sperm cell has.
</span>Hence,
<span>The sperm cell has 39 chromosomes.
The skin Cell will have = 39 x 2
                                    = 78 </span><span>chromosomes.</span>
8 0
3 years ago
Read 2 more answers
In humans, six fingers (f) is the dominant trait; five fingers (f) is the recessive trait. if the father is heterozygous for six
rodikova [14]

The probability of the offspring of a heterozygous father and homzygous mother having five fingers is 50%.

<h3>How to calculate genotype of a cross?</h3>

According to this question, a gene coding for the number of fingers in humans is involved. The allele for six fingers (F) is the dominant trait while the allele for five fingers (f) is the recessive trait.

If a cross between a heterozygous father that posseses a genotype of Ff and a homzygous mother that posseses a genotype of ff, the following offsprings will be produced:

  • Ff
  • Ff
  • ff
  • ff

This shows that the probability of the offspring of a heterozygous father and homzygous mother having five fingers is ½ (50%).

Learn more about genotype at: brainly.com/question/12116830

#SPJ1

3 0
2 years ago
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