Answer:
A theory is the most logical explanation of events that occur in nature. The explanation often results from the use of the scientific method. First, a problem must be stated. Then, after gathering information, a hypothesis, or logical solution, is formed. The solution is then tested in an experiment. The factor that is tested in an experiment is called the variable. This factor is not contained in the control setup. Sometimes principles of chemistry, the study of how substances change and combine, are involved in experiments. At other times, principles of physics are instead.
The metric system is used for all measurements in science. Some basic units in this system are the liter for volume, the kilogram for mass, the degree Celsius for temperature, and the meter for length. Sometimes, the density of a substance, or its mass per unit volume must be measured. If dimensional analysis is needed, a conversion factor must be used.
Explanation:
Answer:
squamous epithelium consists of a single layer of flat cells. It is found in lungs,heart and blood vessels.It allows the movement of materials across it.
stratified epithelium has many layer of flat cells.It is present in lining of oesophagus and mouth and also over the skin
You did not put the listed nations
Answer: the ecosystem is balanced.
Explanation:
Meiosis:
- Allows for transmission of chromosomes to offspring
- Allows for sexual reproduction
- Four Haploid cells are formed
- Necessary for species survival
- Found in all organisms that contain male and female ???
Mitosis:
- Necessary for growth and regeneration
- Allows for regeneration of an organism
- Two identical diploid cells are formed
- Asexual reproduction
- Performed in all organisms hope this helped, :)
