Loss of habitat from any number of causes is the main reason for species endangerment currently.
Answer: Meconium is the earliest or first stool of the mammalian infants.
Prolactin inhibit the release of GnRH hormone.
Explanation:
Meconium is the earliest stool of the infants. Some infants can have their first stool in the womb. Unlike other faeces, meconium comprises of ingested materials accumulated by the baby will in the uterus. It is very thick and dark. It is odourless and contain mucus, amniotic fluid, intestinal epithelial cells and lanugo.
Prolactin is a hormone produced in the pituitary gland that is responsible for milk production. It inhibit gonadotropin releasing hormone which responsible for releasing follicle stimulating hormone and lutenizing hormone. The hormone are responsible for ovulation and prolactin prevent the release of egg.
Answer: When a blood cells is place in Hypertonic solution, water will rush out of the cell, the cell will shrinks or crenates. This is because the solute concentration outside the cell is greater than solute concentration inside the cell.
Explanation:
Hypertonic solution is a solution that have greater or higher solute concentration outside the cell compare to the solute concentration inside the cell.
Answer No 1:
The trait which is being studied in the cross is the height of the pea plant.
Answer No 2:
The two alleles for this trait are tall height allele which we can write as T and the allele for short height which we can write as t.
Answer No 3:
The allele for tall height is the dominant allele. We can say this because when a cross between a dominant homozyous and a recessive plant were made the offsprings resulted in the tall plants which is the F1 generation in the figure. As a dominant trait masks the recessive trait, hence we can say that the tall height allele is dominant over the short height allele.
Answer No 4:
The allele for short height t is recessive because as we can see the short height trait is being masked by the tall height trait in the F1 progeny. In F2 progeny, there are more number of tall height plants produced which further prove that short height is the recessive trait.
Answer No 5:
The F1 offsprings will have a dominant tall height allele, T, and a recessive short height allele, t. The dominant allele was inherited from the tall parent and the short height allele, t, was inherited from the recessive parent.
We can say that because the F2 progeny shows some plants to have short heights which is only possible if the F1 generation has heterozygous dominant (Tt) alleles.
