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
elena55 [62]
3 years ago
13

A researcher examines the effect of adequate prenatal health care on infant mortality. adequate prenatal health care was defined

as receiving 10 or more prenatal health care visits. identify the independent and dependent variables in this research project.
Biology
1 answer:
laila [671]3 years ago
8 0
The independent variable stands alone and is not changed by what is measured. The dependent variable in the experiment could be changed. The independent variable is the actual prenatal care and the independent variable the the amount of prenatal care visits done. In this instance the amount of visits would be changed.  
You might be interested in
Según la historia evolutiva y sus diferentes saltos, ¿Qué linaje de especies es más antiguo?
Arturiano [62]

es la A

Hace aproximadamente 250 millones de años ocurrió la extinción masiva del Pérmico-Triásico, un evento en el cual murieron hasta el 96 por ciento de las especies marinas y un porcentaje similar de las terrestres. Cerca de tres millones de años después se produjo la separación, a partir de un ancestro en común, de los linajes que con el tiempo darían origen a las aves y los cocodrilos. El grupo que incluye tanto a cocodrilos como aves se lo denomina Archosauria, que significa ‘reptiles dominantes’.

espero y te ayude

6 0
3 years ago
What part of the atp cycle are analogous to saving money?
amid [387]
The part of the ATP cycle in which analogous on spending money is ATP is broken down by water to ADP, energy and P. ATP or adenosine triphosphate is defined as a nucleotide that performs many essential roles in the cells and it is also an energy source that is used in living things.
7 0
3 years ago
The greatest influence on a stable ecosystem in nature is;
salantis [7]
I think the answer is man
7 0
3 years ago
Read 2 more answers
Olympic athletes train in Colorado Springs, Colorado because this location is at high altitude and near the 14,000 foot Pikes Pe
Stels [109]

Answer:

A: Oxygen levels are low and, therefore, more red blood cells are produced, giving the athletes an advantage when competing at lower altitudes.

Explanation:

<em>At high altitudes, the partial pressure of oxygen is lower compared to lower altitudes</em>. The body system try to adjust to lower oxygen level by undergoing several physiological changes. Depending on the duration spent in high altitude, the body can either try to adjust in the short term or acclimatize for a longer term.

One of the processes the body undergoes during acclimatization is an increase in red blood cell production. The kidney secretes erythropotein in response to inadequate oxygen in body tissues, and this makes the liver to increase erythrocyte production.

The increase in red blood cell production correspondingly increases the oxygen-carrying capacity of the blood as a result of increased hemoglobin. This condition persists for a few weeks even after the body returns to lower altitude where oxygen is adequate. Increased oxygen capacity means the rate of energy production (through respiration) within the body will also increase

<em>Hence, those who acclimatize to high altitude usually experience increased capillary density, tissue perfusion and improved athletic performance at lower altitudes. </em>

The correct option is A.

3 0
3 years ago
How are asteroids and planets similar?
Anna [14]
Yxhcjcjvjcjfjcjccjcjvjcjccjcjxjxjcjxjxjxjcjxhxjxxhjx
3 0
2 years ago
Other questions:
  • A scientist observes the ocean tides moving large amounts of sand from one part of the beach to another. This is evidence for wh
    12·1 answer
  • How many tenacles does an octopus have
    13·1 answer
  • 1) Social media and technology have given teenagers more ways to act negatively toward each other. 2) Teens say they believe soc
    13·2 answers
  • Two different kinds of appendages may be found on eukaryotic cells that enable them to move. ________ are long slender locomotor
    13·1 answer
  • Why is personal hygiene important for limiting the spread of diseases?
    6·1 answer
  • Which of the following cannot yet be done? A. Determine the genes of a child. B accurately reconstruct complete strands of dinos
    5·1 answer
  • What was the result of using drainage blocks to keep water in the field level during the growing season?
    9·1 answer
  • Which detail in the article BEST supports the
    10·1 answer
  • What are the economic activities in the Amazon forest
    10·1 answer
  • HELP ME PLEASE I REALLY NEED IT
    5·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!