The modern seed plant phyla of ginkgos, cycads, conifers, and gnetophytes are collectively known as gymnosperms.
Phylum is a taxonomic rank below state and above magnificence in the organic class, particularly of animals. In plant life, the corresponding rank is department. instance: Phylum Chordata consists of magnificence Mammalia (mammals), magnificence Aves (birds), magnificence Ascidiacea (sea squirts), and so forth.
At its maximum simplicity, a phylum may be described in ways: as a collection of organisms with a positive degree of morphological or developmental similarity (the phenetic definition), or a collection of organisms with a certain diploma of evolutionary relatedness (the phylogenetic definition).
The phrase become later modified to phylum. There are approximately 35 animal phyla, 12 plant phyla, and seven phyla of fungi. The microorganism, including the archaea, are grouped into roughly 34 phyla, despite the fact that the relationships between these organizations aren't as nicely hooked up.
Learn more about phyla here: brainly.com/question/1140420
#SPJ4
Ductile is pulled into long wires.
We would over populate the eart leading to no water or no food, we would eventually go into a fallout and have nuculer war and then everything is gonna go to sh and we are going to have to repopulate
Suppose that the proportion of the white crest alleles (r) is given by w and that of the Red crest allele (R) is given by p. We have that p+w=1. The probability that an individual has 2 r alleles is given by w*w since for each allele position the probability is w. Only these individuals have a White phenotype. Hence, we get that w^2=
; the right hand side is the proportion of white birds in the total population. Doing the calculations, this yields that w=0.37. From this, we calculate that p=0.63. The possible ways we have heterozygous individuals are the combinations Rr and rR. The probability for each of those is p*w. Thus, the total probability is 2pw. This is equal to 0.466=0.47. This is the fraction of the future population that is going to be heterozygous assuming the conditions of the Handy-Weinberg equilibrium like random reproductive matching etc.
Answer:
Pollen is produced during the pollen formation cycle of a flower.
Explanation:
