Prior knowledge
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Answer: Male
Explanation:
The pelvis is narrow in males, the pubis arch is 90 degrees in angle. It is broad in case of females to support pregnancy and child birth. Also the pubis arch is more than 90 degrees in angle. An occipital protuberance is a region that connects the head to the neck and it is generally larger in males than in female. In males the forehead is sloping in the cranium whereas that in females it is vertical and flat.
Hence, the skeleton have the features that can be indicated towards the features of a male.
Answer:
1. Sympathetic input increases ventricular contractility, thereby increasing stroke volume.
2. Sympathetic input decreases conduction time within the heart, decreasing the delay between atrial and ventricular contractions.
3. Sympathetic input increases the speed of ventricular contraction.
Answer: pistil, stamen, sepal, petal
Explanation:
A flower consists of four main parts named pistil, stamen, sepal, petal.
- stamen produces pollen grains
- pistil receives the pollen
- petal & sepal are components of the flower
