I believe i the correct answer is c because he notices that some of the traits weren't being passed on.
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Answer: Option B
Explanation: The first line of defense acts a barrier and does not allows the foreign materials to enter inside the body. It includes chemical and physical barriers that are always ready to protect the body from infection.
Example: Skin and mucous membrane.
Skin is largest organ and it acts as a barrier between pathogens and human body. It acts a waterproof material and the pathogens cannot get inside through skin unless the skin is broken.
Mucous membranes also acts as first line of defense and breaks the cell wall of many bacteria entering through the openings of the body.
So, skin and mucous membrane are the first line of defense.
the seeds in flowering plants come from ovules in the pistil of a female plant.
Answer:
a. loss of aesthetic and cultural space✔
b. increased high temperatures (heat-island effect)✔
c. increased storm-water run-off, flooding, and pollution of waterways✔
d. increased pollinator and bird populations❌❌❌
Filled with living things in it
