Answer:Though exterior and it can store water
Explanation:
A cactus needs water to survive and it needs its tough exterior to prevent from other animals eating it.
Answer:
F. <u>Atlanta </u>
Explanation:
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<u>#</u><u> </u><u>PHILIPPINES</u>
Answer:
transformation is carried out by random uptake of DNA, and transduction by a bacterial virus
Explanation:
Transformation and transduction are two of the three processes bacteria uses in genetic recombination (the third being conjugation). As rightly stated in the question, both processes establish that DNA is the genetic material of most living organisms and they both involve transfer and expression of DNA from cell to cell.
However, both processes are different in the way they get the foreign DNA into the bacteria cell.
- Transformation involves the random uptake of foreign extracellular DNA by the host bacterial cell.
- Transduction involves the transfer of foreign DNA into a bacteria cell via a virus called BACTERIOPHAGE. N.B: A bacteriophage is a virus that infects a bacteria host.
Answer:
Explanation:
Reptile belong to phyllum vertebrata and the kidney place major role in excretion. They excrete nitogenous waste product from oxidation of protein. Nitrogenous waste product include ammonia,urea and uric acid. Reptiles in fresh water excrete up to 70% of their waste as ammonia making use of the large water bodies as a means of disposal.
For land reptiles such as lizard and snakes they convert ammonia into uric acid and then excrete it through their cloaca.
<span>The primary germ layer that gives rise to the mucosae and associated glands is the endoderm.</span>