In which type of triangle is the orthocenter on the perimeter of the triangle

The triangle in which the orthocenter lie on the perimeter of the triangle is:

                    Right Triangle.

Orthocenter of a triangle--

The orthocenter of a triangle is a point where the three altitudes of a triangle intersect.

As we know that in a right angled triangle each leg of the triangle act as an altitude.

Hence, in a right triangle the vertex containing the right angle will behave as the orthocenter of the triangle and hence lie on the perimeter of the triangle.

              Hence, the answer is:

                  Right triangle.

hey bro i looked it up on google the structure of the eye-spot in euglena viridie, e. ehrenbergii, and phacus pyriyorme is not as franzé haa described it. the so-called “crystal body” and “lens bodies” were not found in any of the individuals of the species examined by me. as earlier observers have stated, the eye-spot consists simply of a mass of pigment granules arranged in a single layer, and probably embedded in a protoplasmic framework, but the latter could not be seen, and its presence was only inferred from the fact that the pigment granules must be held together in some way, thd the eye-spot as a whole is capable of expansion, and that the pigment granules can be separated from each other.

hope this   and an i get brainlsiest

sulfur dioxide

explanation: acid rain is caused by a chemical reaction that begins when compounds like sulfur dioxide and nitrogen oxides are released into the air. these substances can rise very high into the atmosphere, where they mix and react with water, oxygen, and other chemicals to form more acidic pollutants, known as acid rain.