Humans have 22 chromosome pairs and two sex chromosomes. Females have two X chromosomes; males have an X chromosome and a Y chromosome. ... In humans, animals, and plants, most chromosomes are arranged in pairs within the nucleus of a cell. Humans have 22 of these chromosome pairs, called autosomes.
Sunlight is the original source of almost all energy in most ecosystem.
A living entity is referred to as an organism. In order of size: cell, tissue,organ,organism.
Answer:
protein
Most genes contain the information needed to make functional molecules called proteins. (A few genes produce regulatory molecules that help the cell assemble proteins.) The journey from gene to protein is complex and tightly controlled within each cell.
Answer: How scientists define and measure population size, density, and distribution in ... In ecology, a population consists of all the organisms of a particular species ... some methods ecologists use to determine these values for populations in ... In the end, the data can be used to estimate the population size and population density
