Answer:
They are called alleles.
Explanation:
Different versions of a gene are called alleles. Alleles are described as either dominant or recessive depending on their associated traits.
Answer:
I think it might be the last one
It is a substance that takes part in and undergoes change during a reaction
Answer:
See the answer below
Explanation:
Homeostasis refers to the maintenance of relatively constant internal body processes. This is done in two ways
- <em>Negative feedbacks</em>
- <em>Positive feedbacks</em>
Negative feedback returns body processes back to normal after the process has been breached. An example is when the body temperature becomes too high or too low. At too high temperature, vasodilation of the skin's blood vessels occurs and more heat is lost to the surrounding from the skin, sweat is also produced by sweat glands and evaporation of the seat causes cooling. At too low temperature, vasoconstriction occurs leading to the conservation of more heat. The muscles also shake to generate more body heat
Positive feedback ensures that a breach of body processes reaches completion. An example is when a pregnant woman starts laboring. The increase in the amount of oxytocin in the blood leads to the contraction of the uterus consequently leading to the opening of the cervix. More and more oxytocin leads to more frequent and stronger contraction of the uterus untill the baby is born.
Answer:
True
Explanation:
The mesentery fans throughout the abdomen. It is attached to the abdominal wall and the intestines, to keep them in place. It also prevents the intestines from falling down or twisting inside the abdomen. They also help with fighting infection as they have lymph nodes as well.
