Cell membranes are made of phospholipids to keep the cell's water (cytoplasm) in and everything else out. so your answer would be D <span />
The answer is 9 because to find the amount of neutrons you have to take away the atomic number from the mass
If student’s data does not support her hypothesis, then the next MAJOR step would be to "<span>change the hypothesis" although more trials should be done first. </span>
Answer + Explanation :
Bacteria :
1) Approximately diameter is 1-5 micrometer
2) They are prokaryotic.
3) They have rigid cell wall containing peptidoglycan.
4) Replicate by binary fission
Fungi :
1) Approximately 3-10 micrometers in diameter.
2) They are eukaryotic.
3) Rigid cell wall containing chitin.
4) Replicate by budding or mitosis.
<u>Viruses :</u>
1) Approximately 0.02-0.2 in diameter.
2) They are eukaryotic.
3) They contain protien capsid and lipoprotien envelope.
4) Donot replicate by binary fission.
<u>Archae :</u>
1) Not typically associated with human disease.
2) Found in extreme environments.
3) Cell wall doesn't contain peptidoglycan.
Basically the seed contains 2 parts, the testa, which is the seed coat that protects the seed and cotelydon, which is the inside of the seed, containing the radical and plumle.
for seed to germinate, we need 3 basic conditions,
warmth, it is the suitable temperature for seed germination, it can influence the activity of enzymes. providing a optimum temperature
water, to soften down the testa so that the shoot can break out from the testa
and oxygen, for aerobic respiration
.
If these conditions are absent, the seed may be in the state of dormancy. where is won't germinate until it meets the suitable conduction.
after that, the enzyme will digest the nutrient inside the seed and provide amino acid, which is necessary to seed germination. and meanwhile the aerobic respiration provides energy, so that the plumlecan shoot out, and be the shoot of the plant.
and then until it grows leaves, it'll start to complete photosynthesis, instead of using the nutrients inside the cotelydon.
