Plastics are made from non-renewable and non-biodegradable materials and are difficult to convert to environmentally friendly substances. As a result, the organisms and their habitat are facing danger that might lead to destruction, scarcity of food resources, and even death.
Answer:
Meiosis creates four nonidentical daughter cells from one parent cell.
Explanation:
Mitosis produces TWO identical daughter cells from one parent cell. This one is vice versa, Sexual reproduction occurs much more SLOWLY than asexual reproduction. Asexual reproduction occurs quickly. SEXUAL REPRODUCTION occurs when an egg cell is fertilized by a sperm cell.
Explanation:
Protons are positively charged sub-atomic particles that are in the nucleus of an atom and have a relative mass of 1. Neutrons have a neutral charge, meaning they have no charge, and are also in the nucleus of an atom with a relative mass of 1.Electrons are negatively charged particles that orbit the nucleus in electron clouds. They are said to have a relative mass of 0.
For example, a sodium atom is number 11 on the periodic table. The atomic number of sodium tells us the no. of protons contained within its nucleus as well as the number of electrons orbiting. So we can say that sodiun has 11 electrons and 11 protons. To determine the number of neutrons, simply subtract the number of protons from the mass number( found on periodic table)
23-11=12 neutrons
Peripheral nervous system
is responsible for digesting food and eliminating body waste
Explanation:
Peripheral nervous system is also called autonomic nervous system. It is responsible for the basic body function. These functions are breathing, shivering, sweating and also digestion. Autonomic nervous can be divided into two other parts.
The Parasympathetic nervous system and Sympathetic Nervous System
Sympathetic nervous system also prepares our body for stress. If we find something wrong and we frighten wit it then hearts beat becomes faster.
Parasympathetic nervous system is opposite of Sympathetic nervous system. It helps and prepares our body for rest.
