The uterine lining, or endometrium, is the internal layer of the uterus which thickens and gets filled with blood vessels in preparation to receive a fertilized egg. If this does not happen, the uterus removes this extra layer through the vagina, in a process called menstrual flow, which lasts 5 days average.
Answer:
3.The plants get their energy from the sun.
4.Most of the arrows are facing the eagle.
5.The rabbits and snakes would overpopulate.
Explanation:
<span>In a population of field mice, favorable traits in the mice are likely to INCREASE over time, and unfavorable traits are likely to DECREASE over time.
</span>
Answer:
Explanation:
Antibodies have three main functions: 1) Antibodies are secreted into the blood and mucosa, where they bind to and inactivate foreign substances such as pathogens and toxins (neutralization). 2) Antibodies activate the complement system to destroy bacterial cells by lysis (punching holes in the cell wall).
