The interaction between different species is
a. mutualism.
b. parasitism.
c. commensalism.
d. competition.
e. predation.
Answer: d
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Answer the following statements true (T) or false (F)
1) Cytokinesis in plant cells occurs by means of a cleavage furrow. 2) DNA replication occurs in mitosis. 3) Mitosis and cytoplasmic division result in the formation of two genetically identical cells. 4) Germ-line cells are haploid but gametes are diploid. 5) At the end of meiosis I, each daughter cell contains the sister chromatids from only one chromosome from each chromosomal pair. 6) XY individual with a loss-of-function mutation in the SRY gene is expected to be female.
How did mitochondria and chloroplasts arise in eukaryotic cells?
A. Via the endomembrane system that enfolded in such a way as to create mitochondria and chloroplasts B. Via binary fission, where bacteria divided to create mitochondria and chloroplasts C. Via the endomembrane system that engulfed mitochondria and chloroplasts D. Via endosymbiosis, where mitochondria and chloroplasts were independent prokaryotic organisms that were engulfed by a larger cell
Ozone molecules in the stratosphere shield the Earth from damaging UV radiation
___________________ Indicate whether the statement is true or false.
This does NOT apply to Hydrogen bond
A. it involves in formation of beta sheet structure B. It involves sharing electron between molecules C. it plays a major role in integrity of alpha-helix D. it plays a major role in formation of double helix structure E. It is required for formation of tertiary structure