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TLS Online TPP Program

#Question id: 11578

During a stressful interval, ________.

#XL - T Zoology
  1. thyroid-stimulating hormone (TSH) stimulates the adrenal cortex and medulla to secrete acetylcholine
  2. increased acid in the duodenum stimulates the S cells to release secretin
  3. adrenocorticotropic hormone (ACTH) stimulates the adrenal cortex, and neurons of the sympathetic nervous system stimulate the adrenal medulla
  4. the calcium levels in the blood are increased due to actions of two antagonistic hormones, epinephrine and norepinephrine
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TLS Online TPP Program

#Question id: 412

#XL - S Microbiology

All of the following contribute to the large, negative, free-energy change upon hydrolysis of “high-energy” compounds except:
TLS Online TPP Program

#Question id: 19497

#XL - P Chemistry

Isotopes of an element have ————–
TLS Online TPP Program

#Question id: 8897

#XL - T Zoology

Which of the following statements would be least acceptable to most zoologists?
TLS Online TPP Program

#Question id: 5740

#XL - T Zoology

Pollen from one species germinates on the stigma of another related species and sexually fertilizes the ovule. Most of the resulting plants are sterile but some of the resulting offspring undergo chromosome duplication resulting fertile plants. The fertile offspring are known as
TLS Online TPP Program

#Question id: 1770

#XL - Q Biochemistry

Which of the following immunoglobulin has the highest avidity of the immunoglobulins?