Answer:
The correct answer is option C. "a muscular tube extending between the uterus and the external genitalia".
Explanation:
The vagina could be defined as a muscular tube extending between the uterus and the external genitalia. The vagina is attached to the uterus through the cervix, and it is the inner structure of the external genitalia where sexual intercourse takes place. Vagina is part of the internal genitalia of women, as well as the cervix, uterus, fallopian tubes, and the ovaries.
Answer:
Animal- rhino
Explanation:
Threats-
Getting killed by people
Getting sick
Lion and other big animals
Hunger(depends where it lives)
Dehydration
Challenges
The heat
Other animals
Food
Water
Shelter/ shade
Hope this helps, most are if the rhino is living in a desert biom
Answer:
Explanation:
The immune system protects the body from possibly harmful substances by recognizing and responding to antigens. Antigens are substances (usually proteins) on the surface of cells, viruses, fungi, or bacteria. Nonliving substances such as toxins, chemicals, drugs, and foreign particles (such as a splinter) can also be antigens. The immune system recognizes and destroys, or tries to destroy, substances that contain antigens.
Your body's cells have proteins that are antigens. These include a group of antigens called HLA antigens. Your immune system learns to see these antigens as normal and usually does not react against them.
Key physical features. All three species share similar physical characteristics - a relatively small body and a 'robust' or strongly built skull including large lower jaws with extremely large molar teeth.
