after an egg is penetrated by a sperm, the egg and sperm nuclei fuse to form a single nucleus. within 2- 5 minutes after sperm penetration, a fertilization membrane forms beneath the jell coat to prevent the entry of additional sperm.
they are as an urchin has the ability to catch small fish or shellfish such as cockles and whelks it is well and truly able to eat plants and meat
they are as an urchin has the ability to catch small fish or shellfish such as cockles and whelks it is well and truly able to eat plants and meat
that which is observed
Individual student have their area of strength and weakness, with observation you will be able to map out strategy
In IVF, the fertilized ovum is normally placed much higher than the cervix. The ovum would not be able to move from the cervix to the uterus for implantation.
observation is observation! :)inference is inference! :)Assuming you meant "Differentiate observation from inference ?" !....Observation is the act of being able to physically see an object - inference is implying something is real without physical proof of its existence.Incidentally - why was this put into the category 'animal life' !
The purpose of the stigma is transportation. It transports the pollen to the ovum so that it is able to be fertilized.
for you to be able to het a pertinent and accurate data
It travels slowly, if you look at one up close you might be able to see the spines moving slightly. Got a Sea Urchin in my tank, and he does move very slowly, but they have little suction cup like 'feet' that helps them move around over their whole body
It is not up to the hen whether the eggs are fertilized. That is a rooster function. No rooster, not fertilization. If you have a rooster with access to the hens, as soon as they are able to lay, chances are he has done his job and they are fertilized.
able
Absolutely not. However, they are able to make assumptions based on discussion and observation of behaviors.