Answer:
Earths Crust
Explanation:
Earth was made before any kind of landscape.
Valcanoes were formed after a pit of lava was filled up.
Answer:
B) generator potential
Explanation:
The short-lived and localized changes in membrane potential are called graded potentials. A sensory receptor senses the stimulus. As the stimulus is sensed by the associated sensory neuron, there is the production of a graded potential. When the receptor of a sensory neuron is excited by some form of energy such as heat, light, etc., the resulting graded potential is called a generator potential. It is also called a receptor potential.
If the receptor potential is large enough to reach the threshold, it triggers one or more nerve impulses in the axon of the sensory neuron. For instance, thermosensory receptors sense the change in the temperature conditions and the associated sensory neurons generate the graded potential. Since the graded potential is generated due to temperature (heat), it is a generator potential.
<span>one of the traits that make a good scientist accuracy of observation.</span>
The answer is A. internal fertilization, development of an embryo within the female body, and the developing embryo deriving nourishment from its mother
There are three different modes of reproduction:
- Ovoparity - internal fertilization, but development of offspring outside the mother's body (in eggs: ovo
- Viviparity - internal fertilization, development of an embryo within the female body, and the developing embryo deriving nourishment from its mother
- Ovoviviparity - internal fertilization, development of an egg which remains in the mother's body before the hatch and lacks nourishment from its mother.