The answer is the dendrites offer a big apparent area for links from other neurons. The dendrites are the main open or input areas and offer an enormous surface area for receiving signals from other neurons. They have spines appendages in which come to close interaction with synapses with other neurons.
Answer: Substances that are protein based cannot cross the lipid cell membrane, but can exert their effect by binding to the proteins based receptors present on the lipid bilayer.
Explanation:
Hormones such as calcitonin , Parathyroid hormone and pituatry horomones are proteins and water soluble.They cannot cross lipid bilayer but can bind to ligand binding protein receptors.
These receptors are protein macromolecules that are specific in nature for specific hormones.
After binding to the receptors, these hormone-recpetor complexes activate second messengers and regulate the downstream effects.
The correct answer would be stress tests. These are performed to assess the adequacy of the amount of oxygen getting to the heart muscle during exercise and at rest. With this, the absence or presence of a heart disease can be indicated. This is a common procedure done in Cardiography and Cardiovascular Monitoring Services. During this test, the patient is asked to do exercises usually using a treadmill while the patient is hooked on an EKG or electrocardiogram machine. As one exercises, the doctor would monitor the heart rate reading the systole and the diastole. There are also imaging tests to be able to capture pictures of the blood flow in the heart.
Exercise is a subset of physical fitness.
