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☆☆☆☆☆the role of the liver is that it clears toxins from the body
Is produces bile.
The endocrine system affects cells with certain receptors .
The nervous system can affect only nearby cells
viruses are not alive. APEX
Some times both ovaries produce individual egg. Then both ovum gets fertilized and Fraternal twins happens
One egg from each ovary is fertilized
Nutrients are absorbed into the bloodstream. Starch is broken down by enzymes.
Macromolecules are broken down.
When there are limited resources.
when there is competition for resources. apex :)
There must be genetic variation in the population
The system must not be in hardy-weinberg equilibrium.
resources must be limited in the ecosystem
Small intestine
Esophagus - APEX
The parts of the alimentary canal are:
The Mouth
The Pharynx
The Stomach
The small intestine
The large intestine
The endocrine system sends messages using hormones. It delivers messages from the nervous system to the excretory system. It tells the excretory system when the blood is out of balance.
One gland causes calcium ions to be released; another gland causes them to be absorbed
Looking for antigens is part of a specific immune response.
A sperm or egg
eyes develop
lips start to form
Vocal cords develop.
In vitro (in glass)
Phenotypes are an organisms characteristics and traits.
the traits that a person has
it makes the body create memory cells for future infections
