I'm almost positive it is tissue because all organ have tissue but most have muscles, blood, veins
Answer: D) Pulmonary and aortic valves.
Explanation
There are two main heartbeats from a healthy heart.
The first beat is called the S1 or the lub, and it occurs when the atrioventricular valves (comprising the mitral and tricuspid valves) close.
The second beat is called the S2 or the dub, and it occurs when the semilunar valves (comprising the aortic and pulmonary valves) close.
Listening for heart beats is an essential part of cardiac auscultation.
Answer:
His phenotype would be having dry earwax
Explanation:
The area is dessert with less than 25 cm of precipitation a year, most of which occurs during the year in the deserted area of the whole world.
<h3>What are the areas that have the less rainfall?</h3>
Dryland forests could be receiving much less than 500 mm rainfall. This kind of woodland is specially located in South-East Asia, Latin America and South Asia. Also, Indian has round 60% of tropical dry land woodland.
Deserts just like the Sahara Desert in Africa acquire as much less as 25 cm rainfall in step with year, and the plants and fauna of the region, therefore, are such that keep water for lengthy durations of time, and do now no longer want a lot water to grow.
Read ,more about the precipitation :
brainly.com/question/1783904
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