Answer:
A behavioral reproductive isolating mechanism.
Explanation:
Isolating mechanisms may be defined as the mechanism that do not allow the different species to mate with each other. Two main isolating mechanisms are prezygotic isolating mechanism and a postzygotic isolating mechanism.
The behavioral isolating mechanism is a type of pre zygotic reproductive isolating mechanism in which the species are unable to meet with each other due to the differences in their courtship behavior that includes different sounds and color. The cricket species is unable to meet with each other due to difference in their courtship behavior.
Thus, the correct answer is option (A).
Body’s of water i think
Dead zones occur because of a process called eutrophication, which happens when a body of water gets too many nutrients, such as phosphorus and nitrogen. ... Human activities are the main cause of these excess nutrients being washed into the ocean.
The oxygen in the water molecule attracts the most electrons and in so doing attracts a slightly negative charge.
Answer:
A mutation cannot be corrected and can either harm, benefit or be neutral in an organism
Explanation:
A common gene mutation could be Cancer, this is a highly severe gene mutation that can cause a multitude of complications to an organism when left untreated. Some mutations such as Heterochromia, an eye mutation causing two different colored eyes, cause no harm, but makes the organism look more unique.
Hope this helps!
I am not sure about the other things, but if I am not mistaken the site of photosynthesis is the chloroplast...