Answer: Valves in the veins
Explanation: The flow of the blood inside the body takes place through the veins and arteries. The oxygenated blood from the heart is supplied to the different parts of the body.
The blood flows from the capillaries to the venules and from there to the veins. The blood moves in the veins by the rhythmic movement of the smooth muscles in the body.
Most of the blood moves against the gravity so there is a chance that it can backflow so to prevent this there are valves in the veins known as one way valves.
Answer:
False it is in the 17th century (1665)
Explanation:
He named the little blocks after cells (little rooms)
The correct answer is option A
The burning of fossil fuel releases carbon dioxide in the environment. Carbon dioxide is the main green house gas. The green house gases work by trapping the heat that comes inside the earth from the sun.
The carbon dioxide is the green house gas that traps maximum heat coming from the sun. If the carbon dioxide would not have been there then the temperature of the earth would have been very low and the atmosphere would have been colder.
But the global temperature is rising due to lost of carbon dioxide present in the environment as the burning of fossil fuels is increasing day by day.
They all need energy, food, and water. If we're talking about animals, then they need oxygen. If we're talking about plants, then they need carbon dioxide
They do not need parents. Some animals don't have parents the moment they are born (eg: sea turtles).
So based on all that, B seems like the best answer
Answer:
The sequence of bases in a DNA molecule can determine the order of amino acids in a protein molecule. Groups of three bases called triplets represent different amino acids. This is the basis of the genetic code . A sequence of bases (genetic information) on DNA that codes for a protein is called a gene .
Explanation:
