Lipid Bilayer.A plasma membrane is made up of Lipid Bilayers, which consists of polar phosphate heads, which are hydrophilic or water loving, and non-polar fatty acid tails, which are hydrophobic. Proteins are embedded in the membrane as well.Cell membranes are known to have holes, or selective permeable.
Answer:
The Hardy-Weinberg model states that a population will remain at genetic equilibrium as long as five conditions are met: (1) No change in the DNA sequence, (2) No migration, (3) A very large population size, (4) Random mating, and (5) No natural selection.
Explanation:
Science
Because they collect pollen for our environment!!! search this up online you will get lots of facts on it
Answer:
DNA or protein can be used as a ''molecular clock'' that tells how long it has been since two species have diverged from a common ancestor. The fossil record is usually derived from sedimentary rocks laid down millions of years ago.
Answer:
B. it translates signals from the internal organs
Explanation:
The nervous system is fundamental for the perception of the world around us and also for the functioning of the body and the performance of activities such as locomotion, reasoning and memory. It is made up of neurons and glial cells, which provide, among other functions, a suitable microenvironment for neurons.
The central nervous system acts as an integrating center, processing all incoming pulse information. It is in this region, therefore, that decisions are made and orders are generated and sent to the effector body.