Answer: The sun is the closest star to Earth. ... It radiates light and heat, or solar energy, which makes it possible for life to exist on Earth. Plants need sunlight to grow. Animals, including humans, need plants for food and the oxygen they produce.
The correct answer is A:
When the flask is filled with water, the air supposed to be in the flask will be chased, then there will be no air and by the way no oxygen (or very few).
Anaerobic bacteria live in mediums which are deoxygenated (or like it was the case with the flask (there was no air and there were enough organic molecules to grow).
Parasitism bc the warbler's young are being displaced which means that the warblers are suffering harm through the loss of their young.
Answer:
A mineral is an inorganic substance that is extracted from the ore after the mining process. The mineral can be identified on the basis of physical properties like color, luster, appearance, texture and by the chemical composition.
The streak is the method of mineral identification in which the mineral is scrapped off across a streak plate to determine the exact color of the mineral by the color of the powder as two or more minerals may look alike on the basis of color. This method will allow to determine the exact color of the mineral.
On the basis of the above description, these are correct statements:
- streak is the color of a minerals powder.
- most minerals occur in more than one color.
- steak is tested by scraping a mineral across a streak plate.
Answer:
A. Monosaccharides
Explanation:
B is for DNA, C is for protein and D is the polymer for lipids.