Answer:
Natural selection occurs if four conditions are met: reproduction, heredity, variation in physical characteristics and variation in number of offspring per individual.
Explanation:
Answer:Secondary succession Secondary succession follows a major disturbance, such as a fire or a flood. The stages of secondary succession are similar to those of primary succession; however, primary succession always begins on a barren surface, whereas secondary succession begins in environments that already possess soil Secondary succession Secondary succession follows a major disturbance, such as a fire or a flood. The stages of secondary succession are similar to those of primary succession; however, primary succession always begins on a barren surface, whereas secondary succession begins in environments that already possess soil.
Explanation:
Explanation:
D
because when the molten rock cools it forms an igneous rock
Answer:
The ZW is the sex-determination system for offsprings for some organisms such as birds, some reptiles etc.
According to this system, the females have the sex chromosomes Z and W. Males have the sex chromosome ZZ.
Females have a greater chance for expressing a recessive phenotype because they will need only one recessive allele on their Z chromosomes to express the recessive phenotype. On the contrary, males will have a lesser chance because in order to show the recessive phenotype they would require both the alleles on the Z chromosomes to be recessive.
