Answer:
C. are autotrophic
Explanation:
Autotrophs are important in the ecosystem because they create their own food
Answer:
Anaerobic respiration does not need oxygen. It happens when there is not enough oxygen for aerobic respiration. ... 100m sprinters respire using anaerobic respiration in their race because their bodies do not take in enough oxygen during the race to carry out aerobic respiration.
Explanation:
Answer:
The correct statement concerning the cell membrane lipid molecules is that "energy is not expended during diffusion" (Option d)
Explanation:
Biological membranes are formed by two lipidic layers arranged with their hydrophilic polar heads facing the exterior and the interior of the cells, and their hydrophobic tails against each other. Membranes are fluid, which means that molecules that form it have the capability to move through it.
Lipids can easily change places with other neighbor lipids by <u>lateral diffusion</u> in the same layer. This is passive diffusion, which means that it does not need energy to happen.
Lipids can also diffuse transversally to the other layer, but this kind of movement is not as easy as lateral diffusion.
There are also other lipidic movements as rotational diffusion that imply the rotation of the molecule.
Through this lipidic bilayer, there is also a passive transport of some particles from one side of the cell to the other which happens because of concentration differences.
Answer:
Fibrous Joints. Fibrous joints are held together by strong connective tissue with only a slight capacity to stretch.
Cartilaginous Joints. Cartilaginous joints allow for slight movement and occur where bone ends are covered
Synovial Joints. Synovial joints allow the greatest degree of movement due to their structure.
Types of Synovial Joints. The many synovial joints of the human body enable movement of various types
Explanation:
