Answer:
Sequential or integrated screening
Cell-free fetal DNA testing
Proteins in your blood that can mean your baby has a higher risk of birth defects
Explanation:
Sequential or integrated screening
Sequential screening is a test that uses a mix of ultrasound and blood tests to look birth defects at 10 and 13 weeks of pregnancy.
Integrated screening is similar and is done at around 12 weeks and is slightly more accurate
Cell-free fetal DNA testing is testing the baby's DNA that ends up in the mothers blood for signs of birth defects
Answer:
The correct answer is option - A. 0.
Explanation:
Producers are the organism that produces on their own. They do not depend on other organisms for their nutrition and energy such as green plants. They transfer energy and nutrition.
In the given scenario there is no producer present all are consumers of different levels. Cricket is a primary consumer, a spider is a secondary consumer and bird is the third consumer in this food chain.
Thus, the correct answer is option- A. 0.
It will occur where a river loses energy.
