Answer:
a: iron is a substance
Explanation:
because its hard and brittle and classified as a metal
1. Hybridization is a method of sexual reproduction whereas cloning is a method of asexual reproduction.
2. Hybrid animals are sterile, but cloned animals are fertile.
3. Hybrid organisms contain DNA from both male and female parents but cloned organisms contain DNA from only one type of parent.
4. Hybrid has superior character over its parents (improved hybrid vigor) but clones are 100% identical to their parent.
5. Hybridization gives only one hybrid progeny, whereas through cloning unlimited identical organisms can be produced.
Answer:
The precautionary principle would prevent the implementation of technologies that possess a risk to humans, animals, and the environment. The strengths are that it will definately save the population and planet from a new technology that could cause long-term harm.
The weakness is that this principle may inhibit new technologies that are needed to help under-developed countries from preventing diseases. The precautionary principle states that technologies should entirely risk-free.
Explanation:
<h2>Answer:</h2>
NH4+
<h3>Explanation:</h3>
Radicals are molecules or atoms which contain unpaired electrons. the exponent +4 represents 4 electrons in the outer shell which are unpaired
