Polar molecules (with +/- charges) are attracted to water molecules and are hydrophilic. Nonpolar molecules are repelled by water and do not dissolve in water; are hydrophobic.
<span>
Wind dispersion of reproductive cells allowed in seedplants to colonize
land away from water supplies. If water is needed to
passively transport gametes to each other and protect them from desiccation
plants were limited to densely inhabited space near water sources.
Bryophytes & ferns (seedless) are dependent on moist environments
for reproduction but the first seed plants developed an alternate
delivery system allowing independence from water- assisted reproduction.
Conifers produce pollen that can survive by carrying water and
nutrients along. Wind can now carry these male gametophytes to female
gametophytes under the scales of a cone. Fertilization produced a
diploid seed. The seed is protected and can survive dry conditions for a
period of time before growing. Pollen and seeds transferred a conifer’s
water dependence for their reproduction to wind dependence. </span>
Answer:
half
I hope this helps
Explanation:
BECAUSE THE DEVISTION IS BY MEIOSIS NOT MITOSIS
Answer:
Explanation:
A tRNA with the complementary anticodon is attracted to the ribosome and binds to this codon. The tRNA carries the next amino acid in the polypeptide chain. The first tRNA transfers its amino acid to the amino acid on the newly arrived tRNA, and a chemical bond is made between the two amino acids
Answer:
Assuming this is talking about the food pyramid. There is less energy at the top of the pyramid because energy burned off by the prey in this case.
Explanation:
If a predator were to kill and eat prey, the predator would have less energy than the prey did because the prey used that energy as a means of regulating body temperature and etc.
I'm pretty sure this is how it works, please feel free to correct me if you see anything wrong with this.
