We are now experiencing enhanced greenhouse which overly warms the planet and destroyed the atmosphere. <span />
Answer:
Differential and selective
Explanation:
A selective media is one used for growth of only selected microorganisms. Since this medium is using methylene blue to inhibit gram-positive bacteria and allowing the growth of gram-negative, then we can cathegorize it as selective. Selective growth media is also used in cell culture to ensure the survival or proliferation of cells with certain properties, such as antibiotic resistance or the ability to synthesize a certain metabolite, so the researchers can study or farm said metabolite or an specific reaction to an antibiotic.
Meanwhile, a differential media, also called indicator media, distinguish one microorganism type from another on the same media. This is done through biochemical characteristics which reacts to specific nutrients or indicators (neutral red, phenol red, eosin y, or methylene blue) added to the medium to visibly indicate the defining characteristics of a microorganism. Since this media is changing colors when the acidic concentration increases, it is a differential media as well.
Answer:
- If it were true, all organisms would be complex and simple organisms would disappear
- It does not account for genetic mutations known to affect physical traits
Explanation:
Lamark's theory of evolution is that changes in the organism's physical form during its lifetime can be passed on to its offspring. In other words, he believed that children can inherit acquired characteristics from their parents.
The classic example is that he believed giraffes evolved long necks because they would stretch upwords to eat leaves from tall trees, elongating their necks, and then would pass on a longer neck to its children. Or in humans, that a body builder would make a muscular child because of their intense training!
There are a few problems with this theory:
- If we believe this theory, organisms would always be getting more and more complex and 'improved', so simple organisms would disappear.
- We know that changes to the DNA influence inherited physical characteristics, not simply continued use
1. true. natural selection keeps the more suited traits which makes them more adapted to environment (evolving over time).
2. you would expect human DNA to be close to a tiger because they are both mammals.
3. mutations are the raw material for evolution.
4. a cell
5. survive and reproduce
