PIVOTAL JOINT
the joint where our neck joints head and allow the movement of forward, backward, left and right direction. It is moreover like a cylindrical bone moving in a ring
Class 6
Ball and socket joints
Ball and socket joint is a movable joint. In this a bone with round head fits into hollow space of another bone. This makes the bone to rotate freely. . For example, bones of hip and shoulder can move in all directions due to ball and socket joint
JOINTS
The place where two or more bones meet in the skeleton is called a joint. Most of the joints allow the bones to move. The amount of movement depends on the type of joint. We can move our head ,arms ,hands ,legs and feet because all these parts have bone joints.
What is OVERY in plants?
Ovary is the swollen (lowest) part of the pistil. Ovary encases ovules (one or many) that are egg-like structures. Ovules contains the female sex cells and develops into a seed after fertilization. An ovule is a structure found inside the ovary of plants. Integuments are the two layers which cover the internal structures of the ovule.
ANDROECIUM ( PISTIL )
A gynoecium is the female reproductive organ of the flower and referred as a pistil. It consists of stigma, style and an ovary. A stigma is present at the tip of the style and may have many lobes. It is a hairy structure and secret a sugary substance.
ANDROECIUM
An androecium is the male part of the flower which is composed of a long filament and an anther attached to its tip.
SEPAL
The green, leaf like parts in the outermost circle of a flower are called sepals. The sepals protect the flower when it is in the form of a bud in the initial stage . sepals may either be separate from one another or joint together.
PETAL
The colored part of flower that covers the reproductive part of flower. Sepals: The outermost green color part that enclose the bud.
FLOWER
A flower is the reproductive part of a plant. It is the most attractive part of the plant. Different parts of a flower include sepals, petals, stamens and pistil. Parts of a flower can be grouped into two categories namely, accessory whorls and essential whorls.
ROOT
The part of a plant that grows under the ground and takes in water and minerals from the soil. The main root is called tap root and the smaller roots are called lateral roots. All roots seem similar and these are called fibrous roots