Answer:
The three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart.
Explanation:
In Anatomy, cardiac cycle can be defined as a complete heartbeat of the human heart which comprises of sequential alternating contraction and relaxation of the atria and ventricles, therefore causing blood to flow unidirectionally (one direction) throughout the human body.
Generally, the cardiac cycle occurs in two (2) stages;
I. Diastole : in this stage, the ventricles is relaxed and would be filled with blood.
II. Systole: at this stage, the muscles contracts and thus, allow blood to be pushed through the atria.
All amphibians and reptiles except for crocodiles (having four-chambered heart) have three-chambered hearts, which typically comprises of a partially divided ventricle and two atria.
Hence, the correct statement about the three-chambered hearts of amphibians and nonbird reptiles is that, the three-chambered hearts of amphibians and nonbird reptiles are facultative, allowing variation in blood flow through the heart due to the partially divided ventricle.
50% of offspring will have short lashes (homozygous recessive) and 50% will have long lashes (heterozygous which is dominant)
Remains the same: proton pumping rate, electron transport rate, rate of oxygen uptake
Decreases or goes to zero: Rate of ATP synthesis, size of the proton gradient
<span>(Gramicidin causes membranes to become very leaky to protons, so that a proton gradient cannot be maintained and ATP synthesis stops. However, the leakiness of the membrane has no effect on the ability of electron transport to pump protons. Thus, the rates of proton pumping, electron transport, and oxygen uptake remain unchanged.)</span>
Answer:
The integumentary system is similar to a cell membrane in that both structures create a protective barrier against the outside world. How is a nerve cell specialized? Neurons have specialize cell parts called dendrites and axons. Dendrites bring electrical signals to the cell body and axons take information away from the cell body.
Explanation:
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Laboratory tests and clinical procedures include:
- The blood glucose test and the glycosylated hemoglobin test are tests to identify diabetes and prediabetes (A1c).
- A glucose tolerance test may be administered to you if you're expecting to check for gestational diabetes.
- Your thyroid's functionality can be determined by a number of tests, chief among them a TSH measurement.
- Other examinations can evaluate parathyroid problems.
- Female hormonal problems can be identified with the aid of luteinizing hormone (LH) and follicle stimulating hormone (FSH) blood tests.
- Male hormonal problems can be discovered with tests for total testosterone.
- Other blood tests measure hormone levels that have an impact on numerous systems, including cortisol, 17-hydroxyprogesterone, DHEA-sulfate, ACTH, aldosterone, vitamin D, PTH, prolactin, and other estrogen analogues.
- Thyroglobulin (Tg) tests can be used to track thyroid malignancy.
<h3>What is Endocrinology?</h3>
•Endocrinology is the study of endocrine glands.
•Endocrine glands are a group of glands in the body which secrete hormones.
•The purpose of the secreted hormones is to evoke a specific response in other cells of the body which are located far away.
Learn more about endocrine glands here:
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