Waht is the definintion of bilaterally Symmetric, Radially Symmetric, and Internal Reproduction?

Answer 1

Bilateral symmetry is symmetry with one plane of reflection. i.e. We have an arm on each side. Radial has multiple planes of reflection. i.e. Flowers have petals arraigned in a circle. Internal reproduction is when the fetus is nurtured internally, like in mammals.

Answer 2

Bilateral symmetry is having one side that is a mirror image of the other side - like the letter A (vertically) or the letter D

Radial symmetry is when you rotate the image by some degrees and it maps on to the other image - like the letter S

I couldn't find anything to suggest a definition of internal reproduction to do with images (?a form of translational symmetry where the same image is created within the external image) so I guess you must be talking about biological reproduction.

Internal Reproduction is the process whereby an organism creates more similar organisms inside it's body. This is in contrast to external reproduction where the offspring are created outside the body - usually by means of laying an egg (Oviparity). Internal reproduction is usually then followed by birth of the young (Viviparity) or internal hatching of the egg (Ovoviviparity).

Answer 3

Bilateral - like people! Left Side and Right Side are basically the same.

Radial - think of a starfish or a jellyfish (especially looking from the top.) There is no distinct "left" or "right" you can rotate it and it's basically the same (It "radiates" out from the center is how I remember this.)

Internal Reproduction - as opposed to laying eggs :-) (Fetus develops to maturity outside of the body)

Answer 4

Bilateral - one plane of symmetry (most animals - an arm each side, a leg each side.

Radial - more than one plane (think of a starfish)

Internal reproduction - like humans.