Explanation:
1) The male frogs croak to attract mates. They can also visually attract females by displaying vibrant colors. They compete by comparing who calls louder
2) This aids in survival because this ensures that only healthy frogs get to pass down their genes. Unhealthy frogs will not be selected by females. This is called sexual dimorphism
3) The hummingbird displays its impressive tails which they move around to attract females. They may perform aggressive movements against other competing males.
4) These strategies are very important to maintain a diverse and healthy population in a community of animals.
Answer:
evaporation is the loss of water infom or vapour to the atmosphere
Answer:
a.they work together to allow gas exchange
Explanation:
the trachea helps transport air to the lungs, the lungs fill with air, finally the alveoli convert the oxygen to the bloodstream
<span>Vaccination offers protection against future exposure to pathogens because the vaccine is made from the part of the weakened pathogen. A vaccine gives enough immunity in a person’s system and helps create antibodies against sickness brought by pathogens. This will result in you to acquire future protection or immunity against the pathogen without getting sick. </span>
