Answer:
49, where the best fits crosses the x-axis where the mean percentage changes of the mass is 0
Explanation:
Water potential may be defined as a measure of the water's free energy in the solution. It is represented by symbol ψ (psi). It is affected by two factors :
-- pressure potential
-- solute
The water potential of pure water is zero.
In the context, the concentration of the NaCl solution that has same water potential as the onions where the line of the best fits crosses x-axis where the mean percentage changes of the mass is zero, that must be equal.
Answer:
there are two types of cell one eukaryotic cell that have true nucleus (genetic material enclosed in membrane) and membrane bounded organelles and other is prokaryotic cell that donot have have true nucleus (genetic material dispersed in cytoplasm) and membrane bounded organelles.
similarities between PC and EC is that both contains cell membrane, ribosomes (not a membrane bounded organelle) .
examples of PC are bacteria , paramecium,fungi etc
examples of EC are plant and animal cells
there are two names for cell membrane i.e plasmalemma, cell surface membrane,
selectively permeable or semipermeable means cell only allows those material to pass through its cell membrane which it needs.this cell'ability is important because to protection against the poisonous substance and to maintain cell needs .
Answer:
Because atoms could not be seen, Dalton could not base his theory on direct observation, and this was a major stumbling block for many scientists. ... It was easier to express stoichiometric proportions in terms of atoms than in terms of absolute mass.
Explanation:
The right answer is C
I will explain the law of conservation of energy by photosynthesis:
The conservation principle states that the energy of an isolated system (chlorophyll) can not vary.
On the other hand, if the system is not isolated (it is in the nature, exposed to the sun), that is to say if it can exchange with the outside, (the chlorophyll will absorb the photons put by the Sun). Thus the system transforms this absorbed energy into another form (glucose in the case of photosynthesis).
None, egg cells don't have chromosomes. No, sex cells do have chromosomes. meiosis reduces chromosome number so that sex cells (eggs and sperm) have a half set of chromosomes–one homolog of each pair. This is the haploid number.