Water vapor can act as a positive feedback in the Earth's climate system by trapping heat and enhancing the greenhouse effect, leading to further warming. However, water vapor can also act as a negative feedback by forming clouds, which can reflect incoming solar radiation back to space and cool the Earth's surface.
Yes. The father's phenotype is AO+*; the mother's is OO--.
yes
The most common by far is negative feedback, pretty much every hormone works through negative feedback. Take for example tiroxine: low levels of tiroxine induce production of TRH and TSH which in time increase production of tiroxine, and when the levels of tiroxine are high, it lowers the production of TRH and TSH, lowering production of tiroxine as well. Another example would be insulin: when blood sugar levels rise, the pancreas produces more insulin, and once it takes effect and blood sugar levels lower, the pancras stops the increased production. Positive feedback on the other hand is more rare, an example would be childbirthing, when the baby stretches the cervix, it induces production of oxytocin in the pituitary gland, which causes the contractions of the uterus, pushing the baby out and stretching the cervix even more, making the pituitary gland produce even more oxytocin
Yes, if both the mother and the father are carriers of the recessive Rh negative trait, they can produce a child with O negative blood type. The child would inherit one Rh negative allele from each parent, resulting in a negative blood type.
Yes. My husband is positive, i am negative, our son in positive. Only possible complications are normally for the 2nd child, if the female is a negative blood type, the o positive blood is exposed to her blood, she will make antibodies to kill the ''virus'' (the positive blood). At hospital they give regular injections to woman to counter this through first pregnancy and straight after birth so this never happens.Its called Rhesus disease.
no
Negative times negative is always a positive.
Yes.
no.
Negative feedback.
multiplying and dividing a negative number will "flip" the sign of the other number. So multiplying two negative numbers will produce a positive number. Multiplying one positive and one negative number will produce a negative. And of course two positive numbers yield a positive.
Yes
Yes.
No. They could have an A- child, but not A+.
it is unlikly, but posible
It takes two rh negative parents to produce an rh negative baby.
No, negative feedback is a regulatory mechanism in the body that works to maintain stability and homeostasis. It is intended to counteract deviations from a set point rather than produce rapid changes.