chemically combined elemen
Fossil
Explanation:
Fossils are the imprints or remains of living things that tells us the history of life in the geological past.
Fossils can also be defined as the preserved remains of dead organisms that once lived in geologic time past.
- Fossils can be body fossils which preserves part of the body of an organism usually the hard part.
- They can be trace fossils which are the preserved prints of organisms.
- They are usually used to trace the evolutionary history of an organism.
- The tell us about the climatic and environmental conditions of organisms that once lived.
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Answer:
Following electrophoresis, you can cut DNA bands out of the agarose gel and purify the DNA samples. This is a commonly used technique for molecular cloning, such as PCR - or restriction enzyme -based cloning.
The answer is Gravity. To ensure the one-way flow of blood
the veins contain a network of valves which arteries do not have. The reason is
for the veins to counteract the force of gravity on flow of blood. For example,
to increase the pressure of the blood back to the heart the veins must counteract
the force of the gravity.
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Answer:
Canines are the sharp, pointed teeth that sit next to the incisors and look like fangs. Dentists also call them cuspids or eyeteeth. Canines are the longest of all the teeth, and people use them to tear food
Molars are the flat teeth at the rear of the mouth. Each molar typically has four or five cusps. They are used exclusively for crushing and grinding. Wisdom teeth are also called third molars. They erupt from the age of 18 onwards but are often surgically removed.Their function is similar to that of the premolars, to grind, tear, and crush food. Molars have a large flat biting surface which makes them perfect for this job.
Explanation:
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