Answer:
Dwarf plants should be 20
Tall plants should be 60
Explanation:
This question involves a single gene coding for height in pea plants. The tall allele (T) is dominant over the allele (t). This means that T will always mask the expression of t in a heterozygous state.
Heterozygous state implies a plant that contains both dominant and recessive alleles i.e. Tt. Using a punnet square, two heterozygous pea plants (Tt × Tt) will produce four possible offsprings with genotypes: TT, Tt, Tt and tt.
TT, Tt, Tt are all phenotypically tall while the are phenotypically dwarf. Hence, a 3 Tall : 1 dwarf ratio was obtained. The phenotypic ratio can be used to determine the amount expected in offsprings.
Out of 80 offsprings, 1/4 × 80 will be dwarf i.e. 20
Out of same 80 offsprings, 3/4 × 80 = 60 will be produced.
Abstract messages include figures of speech that are difficult to interpret. And abstract messages are best used for persons who are anxious. The explanation behind this is abstract messages contain figures of speech that are tough to interpret. Concrete messages are clear, direct, and easy to understand. Concrete (not abstract) messages are significant for accurate information exchange. Abstract (not concrete) messages necessitate the listener to interpret what the speaker says. Concrete (not abstract) messages are best used for persons who are anxious.
ecosystem:
Living and Nonliving Things in the Ecosystem. Ecosystems -- biological communities -- include living organisms like animals, plants, insects and bacteria, as well as nonliving components like rocks, soil, water and sunlight.
corticotropin releasing hormones (CRH) is another name for CRH factors. CRH is a 41 amino peptide which is derived from a 196-amino acid preprohormone which is it stimulate release of adrenocoticotropic hormone that is ACTH by the anterior pituitary which stimulate secretion of glucocorticoids from the adrenal cortex of the adrenal gland.
Answer:
The blood pumped by the heart is transported to different parts of the body to deliver oxygen.
Explanation:
Homeostasis is a process whereby living cells maintain a stable internal environment despite changes in their external environment. One way cells perform homeostasis is by ensuring oxygen gas, which is required for cellular respiration, reaches all the cells. However, the circulatory and respiratory systems work hand in hand to fulfill this.
The respiratory system brings in oxygen present in air, which is then carried by a pigment in the blood called haemoglobin, to every part of the body. Hence, respiratory system brings in the oxygen gas while circulatory system ensures the oxygen gas is everywhere in the body.