Mating fiddler crabs use several types of sexual selection. males battle each other for territory using their greatly enlarged claws. the territories preferred by females are those in the most physiologically stressful area, and only healthy males can maintain them for long. the males also raise their claws to signal females; those that reach the greatest heights are most noticeable because females are attuned to look upwards for predators. which model of sexual selection is least likely to impact this mating system?

Direct benefits

Explanation:

The direct benefits model of sexual selection refers to the selection by females based on the personal needs and requirements of the female. These personal requirements often refer to the sexual needs and nuptial gifts like a material that improves the health of the female etc. Here, the provided description refers to the physical aspects of the male and the territory the male possess. Therefore, the personal needs of the female are not considered in the described sexual selection for mating between fiddler crabs hence, direct benefits model is least likely to impact this mating system.

uses : -

1.aneroid barometers primarily measure whether pressure is rising or falling.

2.aneroid barometers are often used for reading pressure in homes and recreational boats.  

3.other uses may include barographs in meteorology and altimeters in modern aircraft.  

4.this type of barometer can announce whether a high or low pressure system is coming or whether it is becoming more intense.  

5.there are different types of aneroid barometers, such as the altimeter, which measures altitude, or distance above sea level.  

6.another example is a barograph, which is a modified aneroid barometer that provides constant readings of atmospheric pressure on graph paper.  

7.when used in this capacity, the aneroid barometer can store a week's worth of data.

android diameter a device for measuring atmospheric pressure , often specially calibrated for use as an altimeter ,consisting of a box or chamber partially exhaused of air, having an elastic top and a pointer to indicate the degree of compression of the top caused by the external air

refer to the attachment for the characteristics : -

answer; (true);