Answer:
B) Valves closing
Explanation:
A healthy heart makes a lub-dub sound with each beat. This sound comes from the valves shutting on the blood inside the heart. The first sound (the lub) happens when the mitral and tricuspid valves close.
The integumentary system is composed of skin and other appendices such as nails and hairs. In the integumentary system there are several connections with the endocrine system.
Answer:
Biodiversity conservation protects the plant, animal, microbial and genetic resources for food production, agriculture, and ecosystem functions such as fertilizing the soil, recycling nutrients, regulating pests and disease, controlling erosion, and pollinating crops and trees.
Plants and animals depend on each other in order to survive, therefore the destruction of one would affect the life of the other. Hence, we should conserve biodiversity to prevent these species to become extinct and to maintain a balance in nature.
Answer:
50 cm
Explanation:
Given that
Focal length of the mirror, f = 25 cm
Distance of the image, u = ?
Distance of the object, v = 50 cm
The formula for the focal length of a convex mirror is given by the relation
1/f = 1/u + 1/v,
where each of the parameters are exactly the same as what I've defined above. So now, if we plug in the values, we have
1/25 = 1/u + 1/50
1/u = 1/25 - 1/50
1/u = (2 - 1)/50
1/u = 1/50
u = 50 cm
So then, we can conclude that the size of the image is 50 cm
Answer:
Brain
Explanation:
The parietal lobe is located near the center of the brain, behind the frontal lobe, in front of the occipital lobe, and above the temporal lobe. The parietal lobe contains an area known as the primary sensory area. This is where impulses from the skin, such as warmth, cold, pain, and touch, are interpreted.
