Answer:
The correct answer would be C) respiratory system.
Respiratory system is made up of set of organs which help in taking in oxygen and expelling out carbon dioxide from the body.
In humans, it is composed of nose, pharynx, larynx, trachea, bronchi, pair of lungs, and diaphragm.
Alveoli (in lungs) are the site of gaseous exchange where oxygen is exchange with carbon dioxide.
Carbon dioxide is the toxic waste product of cellular respiration. Circulatory system helps in transporting CO₂ from cells to the alveolar site where it is exchanged with oxygen and excreted out as a part of exhaled air.
Answer:
Because of different abiotic factors (Temp, humidity, ect.)
Answer:
The options including the genotypes are not included. On a general note, three genotypes that are possible for this trait including their phenotype is:
WW- Wide wings
Ww- Wide wings
ww- thin wings
Explanation:
This question involves a single gene coding for wings width in a certain bird. The allele for wide wings (W) is dominant over the allele for thin wings (w). This means that allele 'W' will always mask the expression of allele 'w' in a heterozygous state.
There are three possible genotypes considering this trait.
WW- homozygous dominant genotype which wings will be phenotypically wide because it contains a combination of same dominant alleles.
Ww- heterozygous dominant genotype which wings will be phenotypically wide because I this combination of alleles, the W allele will always express itself phenotypically over allele 'w' considering the dominance of W.
ww- homozygous recessive genotype which wings will be phenotype thin because it contains a combination of same recessive alleles.
N.B: a recessive trait will only be expressed in a homozygous condition.
Early cleavage divisions in most embryos are also rapid. One reason for this is that cleaving cells have a modified cell cycle, in which the two gap phases, G1 and G2 are completely omitted, and the cells cycle rapidly between M and S phases. In addition, because the major cytoskeletal systems of the cells are largely devoted to mitosis (microtubules) and cytokinesis (microfilaments) during rapid cleavage division, there is typically an antagonism between periods of rapid cell division and cell movement. Thus as the embryo approaches gastrulation, there is a tremendous slowing in the rate of division (note the slope of the curve at the right).
Hey there,
The correct answer would be: An eagle
:)
