Random changes in allele frequency in a population are usually called genetic drift. The reason why this is the answer is because it is a very specific word which is used to describe exactly that - random changes in allele frequency.
All the other cases; answers, here aren't correct and don't apply.
Answer:
- covers and lines body surfaces
- minimal intercellular substance
- cells are densley packed together
- cells rest on basement membrane
- simple (single line of cells) and stratified (multiple layers)
- squamous (oval like shape), cuboidal (cube shape), columnar (long rectangle shape)
- vascular (tissue doesn't have its own blood supply)
Explanation:
Hope this helps!
Answer:
Cellular respiration involves many reactions in which electrons are passed from one molecule to another. Reactions involving electron transfers are known as oxidation-reduction reactions (or redox reactions).
A single molecule is the one that is responsible for initiating a signal transduction pathway. The answer in this question is a single molecule. Molecule is defined as an electrically neutral group of two atoms or more held together by a chemical bonds.
