1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
kvv77 [185]
3 years ago
7

Features of the experiment that inadvertently lead participants to respond in a particular manner is a definition of

Biology
2 answers:
Lemur [1.5K]3 years ago
8 0

Answer: Experimenter Bias Role Attitude Cues.

Delvig [45]3 years ago
5 0

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.

You might be interested in
A plane is taking off of an runway. This is an example of?
Readme [11.4K]

Answer:

vrtkoff

Explanation:

The vrtkoff example represents a simplified aircraft taking-off from a runway. There are several viewpoints defined in this model, both static and attached to the plane, allowing you to see the take-off from various perspectives.

6 0
2 years ago
Read 2 more answers
Which of these best lists what a lab report should include?
Elden [556K]

Answer:

The second one.

Explanation:

Purpose, hypothesis, procedure, data, analysis, and conclusion.

6 0
3 years ago
_______ is a connective tissue consists of large round densely packed cells with the nucleus pushed to one side.
grin007 [14]

Answer:

Adipose tissue

Explanation:

  • Adipose tissue is formed of adipocytes and it store the energy in the form of fats.
  • Adipose tissue also act as endocrine organ by secreting leptin, estrogen, resistin and cytokines.
  • Adipose tissue is composed of white adipose tissue (store energy) and brown adipose tissue (heat production).

8 0
3 years ago
Describe how the changes in the temperature of water, during the change of season affect the organisms that live there? Dissolve
mestny [16]

hanges in temperature affect aquatic life. Temperature determines which organisms will thrive and which will diminish in numbers and size. For each organism there is a thermal death point. Also there is a range of temperature of that produces optimal abundance. The effects of temperature upon life of a cold blooded or poikilotherm are profound. Poikilothermic animals, such as fish, are those whose body temperatures follow closely the temperature of their medium.

These animals have coped with temperature problems in different ways. Not only the organism survival, but growth and reproduction of each organism have critical temperature ranges. Each organism must be favored by the proper temperature if the individual or its population are going to survive. For instance, temperature influences enzymatic reactions through hormonal and nervous control to digestion, from respiration and osmoregulation to all aspects of an organism’s performance and behavior.

High and low temperatures that are lethal to individual organism of a species determines the distribution and abundance it’s populations. However, more often the distribution and abundance of populations is determined by less than lethal temperatures interacting with other environmental factors that either tend to favor or not to favor reproduction and growth.

Increased water temperature is an important consideration when toxic substances are present in water. Many substances (i.e. cyanides, phenol, xylene, zinc) exhibit increased toxicity at elevated temperatures. These toxicities and other physiological interactions are also influenced by temperature acclimation or history of the species.

We can gain a clearer understanding of these interactions through consideration of lethal temperature levels. In relation to the survival of individual organisms, the upper and lower lethal temperatures define the total temperature gradient. Within this temperature gradient, there is a range as shown in Figure 4 in which the species can function at or near optimum. In this range, growth and reproduction temperature requirements are met and the species will be found in greatest abundance. Outside the optimum range, there are zones of physiological stress. In these zones, organisms become infrequent because activities are limited more by temperatures that produce discomfort or stress. The period of time an organism can live under physiological stress is a function of how far the temperature is from the lethal level.

Most changes in water temperature as a result of land use activity generally trend upward. An exception is the release of cold bottom water from stratified artificial impoundments that may alter the flora and fauna for many miles downstream from a dam. Most other activities generally raise the temperature of receiving waters with the following effects:
(a) Higher temperatures diminish the solubility of dissolved oxygen and thus decrease the availability of this essential gas.
(b) Elevated temperatures increase the metabolism, respiration and oxygen demand of fish and other aquatic life, approximately doubling the respiration for a 10° C. rise in temperature. Hence the demand for oxygen is increased under conditions where oxygen supply is lowered.
(c) The solubility of many toxic substances is increased as well as intensified as the temperature rises.
(d) Higher temperatures militate against desirable fish life by favoring the growth of sewage fungus and the putrification of sludge deposits, and finally
(e) even with adequate dissolved oxygen, there is a maximum temperature that each species of fish or other organism can tolerate. Higher temperatures produce death. The maximum temperatures that adult fish can tolerate vary with the species of fish, prior acclimatization, oxygen availability and the synergistic effects of other pollutants.

Median Tolerance Limits (MTL)have been reported are shown in the following table. Species have been arranged in the order of heat tolerance. As shown by this table, Goldfish, Bass and Carp are relatively tolerant of high temperatures, whereas Trout and Salmon are more sensitive. These temperatures, however, apply to adult fish. For spawning and hatching of eggs, much lower temperatures are required. Many species spawn only above or below certain temperatures. Several species of fish and their spawning temperature ranges are shown in Figure (Cooper).



7 0
3 years ago
Solid sodium reacts with liquid water to form hydrogen gas according to the equation 2 Na(s) + 2 H₂O(l) → 2 NaOH(aq) + H₂(g) Wha
lana66690 [7]

Answer: 21850.42mmHg or 28.78atm

Explanation: From the equation of the reaction, 2 moles of sodium reacts with 2 moles of water to produce 2 moles of NaoH and 1 mole of hydrogen gas at s.t.p.

molar volume of gas at s.t.p. = 22.4dm^3,

standard temperature = 0°C or 273K,

standard pressure = 760mmHg or 1atm,

molar mass of Na = 23g;

volume of the container= 20L or 20dm^3

From the equation, 2 moles or 46g of Na produces i mole or 22.4 dm^3 of hydrogen.

Therefore, 1kg or 1000g of Na will produce 22.4 * 1000/(46)= 486dm^3 of hydrogen.

To find the pressure of the gas produced, the formula P1V1/T1 = P2V2/T2

P1= 760mmHg, T1= 273K, V1 (initial volume of gas)= 486dm^3, T2=50.0°C or 50+273K= 323K, V2( final volume of gas= volume of vessel)=20dm^3  P2=?

P1= P1V1*T2/(V2T1)= 760mmHg * 323/(273)= 21850.42mmHg or 1atm*21850.42/760= 28.78atm

5 0
3 years ago
Other questions:
  • Which polymers carry the information for cell growth and reproduction from one generation to the next? A. proteins B. starches C
    5·2 answers
  • Autosome are ____ chromosomes<br> A. Nonsec<br> B. Homologouns <br> C. Abnormal<br> D. Haploid
    9·2 answers
  • During the process of photosynthesis, green plants produce?
    15·2 answers
  • What problems do invasive species pose to an ecosystem?
    11·1 answer
  • Which statement about natural selection is true
    13·1 answer
  • What happens to the orbit of Earth when the mass of the Sun is reduced to 75,000?
    9·2 answers
  • Molecular scientists can read the DNA code and compare the DNA of different organisms. This concept is used in molecular clocks
    14·2 answers
  • Which of the following expressions is not a function of mitosis?
    7·1 answer
  • Someone please help me, I’ve done this like 10 times.
    11·2 answers
  • PLEASE HELP
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!