During meiosis 1, prophase 1 Each chromosome form tetrads and and become more and more condensed. This is when crossing over occurs. So your answer is B.
Competition is the answer
In the given case, the client is recommended for ETT, that is, an Exercise Treadmill Test.
Various patients have underlying CAD, that is, coronary artery disease, however, it remains asymptomatic. Thus, prior to starting any new kind of intense activities after years of a sedentary lifestyle, it is suggested that the person should go for ETT to rule out any kind of underlying CAD.
An ETT records the heart's electrical activity on an ECG and takes the readings of blood pressure while one walks on a treadmill. It is usually done to check for any kind of heart disease, or to find of the treatment for heart ailment is efficient.
Answer: The three test include, Ammonia test,dissolved oxygen test, carbon dioxide test
Explanation:
Ammonia test- this help to test the amount of ammonia available in the aquatic habitat to determine it sustainability of aquatic organism such as algae bloom
Dissolved oxygen test- Oxygen is essential for respiration( aerobic respiration) of animals, the test identify the level of oxygen available to sustain respiration.
Carbon dioxide - carbon dioxide is an essential reactant for photosynthesis, the test determines the amount of carbon dioxide.
Temperature - an increase in temperature increase metabolic activities and organism sensitivity to toxins.
Nutrient - increased nutrients level increase their growth and also determined how organism are distributed in the aquatic habitat.
Carbon dioxide - It influence the pH an increase carbon dioxide decrease pH and increase photosynthesis.
Answer: reptiles are ectothermic , while Amphibians are endothermic
Explanation:reptiles and Amphibians are vertebrate.reptiles are a group of air breathing vertebrates that have internal fertilization and scaly bodies.some difference between Amphibians and reptiles include
1)the presence of dried scale in reptiles to prevent water loss.in Amphibians, their skin is smooth and moist and without scale
2)reptiles have more powerful jaws
3) internal fertilization is in reptiles while fertilization is usually external in Amphibians
4)the Amphibians respire by gills, lungs , mouth or through their most skin but reptiles respire through the lungs.
But Reptiles are ectothermal and so are Amphibians
They are both terrestrial and aquatic organisms.they both have separate sexes.
Examples of Amphibians are salamander and frog.example of reptile are turtle and alligator