Usually form superficial skin infections only A. Bacteria
<h2><u>AnswEr :</u></h2>
The right answer is "Both insects and amphibians exhibit metamorphosis"
Have six legs :
- Amphibians are not six legged organisms rather they are four legged
Are both Vertebrates :
- Insects belong to the Phyla Arothropoda. Arthropods are invertebrates
- Amphibians belong to the Phyla Chordata. Chordates includes vertebrates
Go through Metamorphosis :
- Both insects and amphibians are found to exhibit metamorphosis. For instance, Butterfly incase of insects and Frogs incase of Amphibians
Are both Invertebrates :
- Insects are Invertebrates while Amphibians are Vertebrates
Look like their parents at birth :
- Insects don't resemble their parents at birth. As they grow into adults,they develop body patterns, structures similar to their parents
- Amphibians develop indirectly,from larvae. Indirect Development refers to the development where the embryo develops into a sexually - sterile organism after which it undergoes metamorphosis to become an adult.
Answer: Choice D
Explanation: Natural selection explains how the strong survive due to mutations to suit the environment.
Answer:
either RNA or DNA
Explanation:
The advancement of biomedical research techniques and molecular biology has led to the observation of the close relationship between certain viruses and some cancers in various animals. Thus, it has been shown that several DNA and RNA viruses are oncogenic in a wide variety of animals, from amphibians to primates, and there is growing evidence that some human cancers have a viral origin.
Based on this, we can conclude that oncogenic viruses can be composed of DNA or RNA.
The right answer is D.
The effectiveness of BT-Corn compared to conventional insecticide treatment is very much higher:
* The plant itself produces the toxin that blocks the digestion of or target insects: the entire plant is protected where a treatment (out of neonicotinoids, very expensive and reserved to the seed treatment) allows only a protection of surface and must be renewed several times.
* The selectivity of the treatment is very superior: each variant of the BT molecule targets only a family of insects but we do not know the impact of their cumulative effects in the environment.
