The correct answer for the given question above would be option A. The two organ systems that regulate homeostasis in our bodies are nervous and endocrine. The nervous system is responsible in the coordination of different systems in the body, including the voluntary and involuntary function. Whereas, the endocrine system, along with the nervous system is responsible for the regulation of different hormones that are responsible for different functions in the body.
Relative dating concerns the dating of fossils by using stratum (layers in the rock) to find the estimated age.
Absolute dating is finding the age of a fossil by using radiometric methods, such as fluorine dating or half-life dating; which is more accurate than relative dating.
In cardiac muscle
a. an action potential spreads throughout the Z discs.
b. intercalated discs connect the muscle fibers together.
c. calcium enters the cell from storage chambers called intercalated discs.
d. potassium is released from the sarcoplasmic reticulum
Answer:
b. intercalated discs connect the muscle fibers together.
Explanation:
Intercalated discs are components of the muscles found in the heart(cardiac muscles).
Intercalated discs join the cardiomyoctes (muscle cells or fibers) together so that they can function as one and transmit signals amongst themselves during the contraction of the heart.
Intercalated discs are made of up desmosomes and gap junctions.
Intercalated discs are found on the lining of the sacromere and can only be seen by using a microscope to observe the longitudinal section of the heart tissue.
Answer:
There are 5 steps of the scientific method
1. Make a question
2. Do some research for that question
3. Make a hypothesis ( guess what might happen during the experiment)
4. Test and Collect Data
5. Conclusion ( write what happened during the experiment and what you learned)
Answer:
Antony Van Leeuwenhoek
Explanation:
Discovering bacteria and creating more than 500 simple microscopes
