The body has levels that build on eachother
Answer:
Explanation:
Similar to a guard at the outside of a club, deciding who should be allowed in and who to keep out, the cell membrane is semi-permeable, regulating the movement of substances in and out of the cell with the help of protein channels.
The cell membrane is a double layer of lipids (fats) and proteins that surround a cell and separates the cytoplasm/ organelles from its surrounding environment.
Answer:
The most accepted theory about the origin of Earth is that it formed by a process called planetary accretion
Explanation:
The most accepted theory about the origin of Earth is that it formed by a process called planetary accretion. In this process, the Earth is believed to have been formed from a cloud of gas and dust that remained following the Sun's formation. This cloud of gas and dust is referred to as the solar nebula.
Differentiation refers to the process by which the various layers of the earth were formed; core, mantle, and crust
Vestibule, Saccule, Utricle, Maculae, and Otolithic Membrane.
Answer:
Natural selection occurs if four conditions are met: reproduction, heredity, variation in physical characteristics and variation in number of offspring per individual.
Explanation: