Answer: "homeostatic (dynamic equilibrium) range"
Homeostasis can be observed through the "homeostatic range (pre-set limits)" of the body's pH, temperature and blood glucose.
Explanation:
Homeostasis is the control of internal environment , physical and chemical conditions maintained by the living systems. A body takes control of its internal environment in spite of external forces interruptions. It can be defined as the body's defensive mechanisms.
Homeostasis is maintained and controlled by the nervous system.
Homeostasis is for optimal functioning of the internal environment such as body pH, body temperature, fluid balance, chemical ions balance (calcium, sodium and potassium) and blood glucose.
Body temperature is normally about 37.5° C (98.6° F).
Salt concentration in body fluids is normally about 0.9%
Blood glucose is normally about 10 mg/ml.
A disturbed (imbalanced body as a result of external forces) body regains its haemostasis balance by
Activating reflexes that fight the disturbance and maintaining behaviours to counteract the disturbance.
2. The evolutionary process through which new species emerge
Answer:
Thalidomide may be defined as a type of the sedative drug that in the earlier time referred for the pregnant ladies. This drug causes the world wide tragedy and acts as a teratogen.
This drug causes mutation in the fetus. The Ames test is effective to understand the mutagenicity of the drug. In this test, if the auxotrophic strain of the bacteria is grown on the the deficient media containing thalidomide drug. The bacteria growth indicates the positive Ames test and the substance is considered as mutagen.
I would have to say <span>This is an example of incomplete dominance but i'm not sure if correct. </span>
Answer:
The correct characteristics are -<em><u> tissue, coelom, segmentation, endoskeleton, and backbone</u></em> from top to bottom boxes.
Explanation:
This phylogenetic tree showing the evolution and relatedness of the different organisms on their shared characteristics. In the given phylogenetic tree there are some characters are missing and we can predict or state them on the basis of evolution and studying the characteristics.
After the Porifera phylum tissue-level organization is found in the organism hence Tissue would be placed in the first box.
The coelom is found organisms above the Nematoda level, which further include a character segmentation in Annelida and Arthropoda. Another lineage from arising with the coelom organism that included endoskelton and backbone.
Thus, The correct characteristics are - tissue, coelom, segmentation, endoskeleton, and backbone from top to bottom boxes.
