Answer:There are four types of complex carbon-based molecules in all living organisms: proteins, carbohydrates, lipids, and nucleic acids
Explanation:Cells are the basic building blocks of living things. The human body is composed of trillions of cells, all with their own specialised function
Answer:
Kindly check explanation
Explanation:
Animal agriculture simply refers to the extensive use of various cattles , birds and other animals and their derivative in contributing to the growth and development of the economy and it's populace. In the most evident of cases and scenarios, we can establish that animal agriculture plays important role in the economy which include but not limited to being an integral source of revenue for the state and local economy, provision of jobs and subsequent reduction in level of unemployment, an important source of protein such as meat, fish, poultry birds, eggs and so on.
Even in the most developed of economies, agriculture continues to be a main point of focus in most countries, contributing immensely to the GDP of the nation. Animal agriculture could be practiced from a relatively low scale level which has made it easy for individuals to be self employed and a resulting reduction in level of unemployment.
Answer : A metal in group 16 of the periodic table can become a chemically stable ion by gaining 2 electrons.
Explanation :
The group 16 element are oxygen, sulfur, selenium, tellurium and polonium.
The general electronic configuration of group 16 elements is, 
As we now that there are total 6 electrons in p sub-shell. So, a metal in group 16 can become a chemically stable ion by gaining 2 electrons.
Hence, a metal in group 16 of the periodic table can become a chemically stable ion by gaining 2 electrons.
Answer:
Explanation: Trophic level, also called feeding level, is defined as the feeding level or each stage in a food chain or food web. In other words, trophic level is the number of links by which food energy is transferred from producers to final consumers. For example, in a food chain like the one below, we can have these levels.
