Answer:
False
Explanation:
A double-helical DNA molecule consists of two DNA strands. A DNA strand has free 5' phosphate at one end and a free hydroxyl group (OH) at its 3' end. A DNA double helix is said to be antiparallel since each end of the double helix has an exposed 5' phosphate on one strand and a free 3' hydroxyl group (OH) on the other. This means that the two DNA strands run in opposite directions. A phosphate group is always esterified to the 5' carbon of the pentose sugar; never at its 3' end.
It is between A and B.
But if the species is going to be extinct, that means that they are being threatened.
So the answer is B.
Differences Between Pteridophytes and Seed Plants
Pteridophytes don't produce cones, flowers, or fruit, unlike these seed plants. Instead, Pteridophytes produce spores. Spores are living, single-celled structures that are essential to the life cycle of many plants.
(hope this helps ✌)
Answer:
It is the scientific method of investigation problem-solving used by disease detectives like epidemiologists, laboratory scientists, statisticians, physicians and other health care providers, and public health professionals, to get to the root of health problems and outbreaks in a community.
Explanation:
