Answer:
could be either or, but the name of the shape is a double helix.
Explanation:
Ionic bonds result when electrons are tranfered between atoms. Covalent bondsresult when valence electrons are shared between atoms. You should be able to identify whether an ionic or covalent bond is being formed between atoms.
The temperature of a substance remains constant during a phase change.
Answer:
The condition of the Earth had to become favourable before it could support any form of life.
The formation of the different layers around the earth like the ozone layer was necessary before life could originate. Primitive species such as some prokaryotes were able to live in hydrothermal conditions during the initial times. With the passage of time, as the concentration of oxygen increased due to photosynthetic prokaryotes, situations became favourable for eukaryotic organisms to arise.
The part of the scientific method which pertains the collection of data on which we can test our hypothesis is the one which relies more heavily on newly collected data.
When talking about creativity and innovation in the scientific method, this would usually include experimental design and not data collection.