Answer:
The nervous system is stimulated from the environment, through sensory receptors. A stimulus is any form of energy that can be detected by the body. ... Animals normally only respond to stimuli which they select; they filter out certain stimuli that surround them, and react to others they choose to accept.
Answer:
common ancestor. ... Mammals share the homologous structure of the vertebrae in common.
Explanation:
<span>The correct statement is letter C. All arteries except the pulmonary artery carry oxygen-rich blood. Most arteries are responsible for the delivery of oxygen and nutrients to all cells and the pulmonary veins are the one who transfer oxygenated blood from the lungs to the heart.</span>
Answer and Explanation:
Internal fertilization is characterized by sperm fertilizing the egg within the female. More protection against outside environments and predators, and therefore a higher chance of surviving until birth
. The young develop within the female, receiving nourishment from the mother’s blood through a placenta. Less chance of desiccation of gametes. Internal fertilization also enhances the fertilization of eggs by a specific male since the females are more selective of their mates thus increasing chances of gametes meeting
. Even though fewer offspring are produced through this method, their survival rate is higher.
Hello. You forgot to enter the answer options. The options are:
"A. cAMP opens a pore for steroid hormones to enter the nucleus. B. cAMP receives a message from a nonsteroid hormone and carries the message into the cell. C. cAMP receives messages from mRNA to begin protein synthesis. D. cAMP are molecules that bind and captures the nonsteroid hormone"
Answer:
cAMP receives a message from a nonsteroid hormone and carries the message into the cell.
Explanation:
cAMP is a very important molecule for the functioning of our organism. That's because cAMP is a cellular messenger responsible for receiving a message from a non-steroid hormone and carrying it to the cell.
The cAMP is formed by the enzyme adenylyl cyclase, which is present on the inner side of the membranes. This enzyme catalyzes a reaction with the ATP molecule, giving rise to cAMP.
