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Reil [10]
3 years ago
14

Which kind of relationship would a dog and a tick have

Biology
2 answers:
andreev551 [17]3 years ago
4 0
The tick uses the dog for two reasons. 1.It uses the dog as a source of food. 2.It also uses a dog for means of transportation from one place too another. And so the dog gains nothing

larisa86 [58]3 years ago
4 0
Parasitic because the tick thrives at the expense of the dog and the dog does not receive any sort of advantage in return.
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Plant spores are usually
max2010maxim [7]

Answer:

The correct answer will be option- A

Explanation:

Spores are the reproductive unit produced as a result of sexual reproduction and asexual reproduction in both lower and higher plants.

The plant groups like Fungi, Algae, Bryophytes, Pteridophytes and Gymnosperms produce these spores which provides adaptation as they can be dispersed for the long-distance as well as germinate and form an organism.

The spores are formed by the process of sporogenesis which forms four spores from a diploid structure their meiosis which reduces the genetic material to half and maintain the haploid ploidy number.

Thus, option-A is the correct answer.

4 0
2 years ago
6. (3 pts) After transformation, 40 colonies were present on the plate. What is the transformation efficiency of the competent c
natali 33 [55]

Answer:

Given:

Number of colonies on plate = 40

Amount of DNA used for transformation = 100ng

Volume of competent cells used = 100ul

Total volume = 1ml (1000ul)

Volume plated for growth = 200ul

The amount of cells transformed per 1 µg of DNA is called the transformation efficiency

(CFU is colony forming units) => (number of colonies on plate/ng of DNA plated) X 1000 ng/µg = CFU/µg of DNA

Amount of DNA used for plating = 100ng * (200/1000)

                                                      = 100ng * (1/5)

                                                      = 100/5 = 20ng

Efficiency calculation = 40 colonies / 20ng = 2 colonies/ng

               (2 colonies/ng) * (1000 ng/µg) = 2000 CFU/ug DNA

Transformation efficiency = 2000 Transformants / ug DNA

                                          = 2 x 10³ Transformants / ug DNA

Explanation:

Efficiency of transformation is highest in the 100 pg-1 ng range, so Low transformation efficiency could be because of high amount of DNA used for transformation.

6 0
2 years ago
The hershey-chase experiment answered the question of whether protein or dna was the genetic material by learning whether ______
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5 0
3 years ago
What does biology mean?​
Vanyuwa [196]

Answer:

the study of life

Explanation:

bio- life

logy- the study of

5 0
3 years ago
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DNA is not capable of mutational change. True false
kherson [118]
I think Your answer is false. 
5 0
3 years ago
Read 2 more answers
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