Answer:
A gene is a basic physical and functional unit of heredity. Genes are present in the chromosomes of an organism. Genes carries the instructions to make molecules called as proteins which performs specialized function and building up the structure of living organisms. Genes are transferred from the parent organism to the offspring organism by the process of reproduction, hence maintains heredity in the living beings.
<span>When biological weathering occurs, the living organism breaks down the rock or other nonliving object through either mechanical or chemical erosion or the use of both. </span>
Answer:
11. Why do scientists assume that experimental results can be reproduced? A key assumption in science is that nature behaves in a consistent manner.
12. What did Anton van Leeuwenhoek discover? He discovered a world of tiny moving objects, which he called "animalcules," in rainwater, pond water, and dust.
13. What did John Needham conclude from his test of Redi’s findings? He concluded that the little animals in a bottle of broth could only have come from the juice of the broth.
14. What did Spallanzani do to improve upon Redi’s and Needham’s work? He boiled two containers of broth, assuming that the boiling would kill any microorganisms that were present.
15. How did Pasteur settle the spontaneous generation argument? He designed a special flask to show that as long as broth was protected from microorganisms, it remained free of living things.
Explanation:
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.