Answer:
To swim, they move their tails up and down, rather than back and forth as fishes do. This is because whales evolved from walking land mammals whose backbones did not naturally bend side to side, but up and down.
Explanation:
Answer:
Explanation:
B. có nhiều hệ sinh thái khác nhau trên trái đất. mỗi hệ sinh thái có một đặc tính riêng và chúng có thể kết nối, tác động qua lại với các hệ sinh thái khác
Hii basically ive included a photo of what it should look like
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The correct answer is D. Decidua basalis.
In a ceaserian section, an incision can be through the superficial fascia, perimetrium, and Alinea alba. An incision cannot be made through decidua basalis.
Decidua is termed as the uterine lining which during pregnancy forms part of the placenta under the influence of progesterone. Decidua basalis is part of decidua which interacts with trophoblast. Decidua basalis has three layers which include;
1. Boundary layer which is adjacent to myotrium2. Intermediate layer.
3. Compact layer.