I think the answer is D. A good indicator is the resting heart rate. Exercise strengthen your heart and it makes it more efficient. The resting heart rate shows of the heart is pumping blood normally each time it contracts. Having a normal resting heart rate would mean a healthy heart.
Answer:
It is a definition of demand characteristics.
Explanation:
The term demand characteristics originated in Martin Orne's work as the test group understood what was the investigation and acted consequently. Thus, the way an experiment is built may lead participants to answer unconsciously to what they believe the researcher wants. When the participants form a notion of where the experiment is heading, they probably behave accordingly. One way to avoid the effects of demand characteristics on research is to use deception and guide participant to act more naturally as they cannot guess the purpose of the experiment.
Answer:
The plants have the higher population density. This is because, when compared with that of the insects, the number of plant species per acre area is higher; 2800 compared to 683.3
Explanation:
The number of individual species per unit area of land is known as the population density. Population density describes how crowded or spaced out a given species is in a particular area. The higher the population density, the more crowded the species are and vice versa. The formula for calculating population density is given as:
Population density = Number of species/land area
Population density of the insects = 820/1.2 = 683.3 insects/acre
Population density of the plants = 560/0.2 = 2800 plants/acre
Therefore, the plants have the higher population density.
This is because, when compared with that of the insects, the number of plant species per acre area is higher.
