I believe the correct word in the blank would be biological. I don't think anything else will fit in, especially when monomers of biological polymers are truly larger and more complex.
Answer:
A. The fern transitioned from gametophyte generation to sporophyte generation.
Explanation:
Ferns undergo an ALTERNATION of GENERATIONS in their reproductive life cycle. That is, they alternate between an incospicuous gametophytic stage and a dominant sporophytic stage. The sporophyte produces haploid spores, which germinates into the gametophyte plant called PROTHALLUS.
The gametophyte produces gametes (male and female) which fuse together to form the diploid zygote, which eventually develops into the SPOROPHYTE plant via mitosis. In this question, the brown dots from the underside of a fern's leaves that Maria collected are the spores.
When she places them in a pot, the spores germinated into gametophyte stage, then formed sporophyte, which is the small leaves she noticed growing from the pot. From this, it can be observed that the fern is transitioning from GAMETOPHYTE generation to SPOROPHYTE generation.
Answer:
Transboundary
Explanation:
Transboundary refers to a highly contagious disease that has the potential to spread extremely rapid irrespective of national boundary. They cause high mobility and motility in the susceptible animals. An example of such diseases include Avian Influenza and the African Swine flu.
Zoonotic disease is disease that can be transmitted from animals to Humans example anthrax.
Exotic disease refers to a disease that does not normally occur in a particular region
Emerging diseases are those that have recently appeared and are cases are rapidly increasing.
Epizootic are those that appear in a large number of animals in the same place at the same time
Answer:
To move substances against a concentration or electrochemical gradient, a cell must use energy. Active transport mechanisms do just this, expending energy (often in the form of ATP) to maintain the right concentrations of ions and molecules in living cells.
Explanation:
