What is a well-known issue with cross-sectional methodology?

Answers

Answer 1

Answer:

This methodology enables to measure simultaneously both the result and exposure in the group under study

Explanation:

A cross-sectional method is a type of scientific design based on observational data. The cross-sectional studies involve the use of diverse groups that differ in the variable investigated but share other features (for example, individuals with the same educational background, ethnicity, economic status, etc). This class of studies is generally used in developmental psychology.


Related Questions

Elephants diet reactants and products

Answers

The world could lose a fifth of its African elephant population in 10 years. ...

The field of ________ is a thoroughly modern discipline that has led to new ways to treat infectious disease.
A) recombinant DNA technology
B) epidemiology
C) immunology
D) serology
E) biochemistry

Answers

Answer:

A

Explanation:

The field of recombinant DNA technology is a thoroughly modern discipline that has led to new ways to treat infectious diseases.

Recombinant DNA technology involves the process of combining DNA of different organisms and inserting such in a host organism in order to elicit desirable genetic characters that could be of value to different fields in science.

The fields in which recombinant DNA technology has found applications include agriculture, medicine, and industrial productions. With this technology, new drugs and methods of treating diseases have been developed in the area of medicine, disease-resistant crop varieties have been developed in agriculture, and important chemicals for production have been developed in industries.

Correct option: A

The buy local, ______ movement encourages consumers to purchase goods that are produced nearby to save fossil fuels. Please Help.

Answers

Answer:

No fossil fuels are used.

Explanation:

Buy local movement is a movement in order to encourages the consumers to buy goods and products that are produced locally because it has less costly due to save fossil fuels. Those goods which are imported from other countries are very expensive because the shipping cost is also included. So the products made locally are cheap due to no shipping cost or fossil fuels are used.

Answer:

market

Explanation:

how are clouds formed in the atmosphere?

Answers

Answer:

Clouds are created when water vapor, an invisible gas, turns into liquid water droplets. These water droplets form on tiny particles, like dust, that are floating in the air.

Explanation:

Can you unscramble all the words below?
Hint: They all start with the letter C.
RABCNO
1. I'm an element with 6 protons.
OMASPCS
2. I can help you if you're lost.
RNIARCOVE
3. I eat other animals.
LODUC
4. You'll have to look up to see
me.
IL CAI
5. I help things move.

Answers

Answer:

Explanation:

1. carbon

2.Compass

3.Carnivore

4.Cloud

5.Cilia

Which of the following would be the MOST dangerous consequence if humans depleted the world’s timber supply?

Answers

Answer:

No oxygen

Explanation:

we wouldn't be able to breath, cause without the trees there would be no oxygen

The part of Earth that contains living things is:


Biome


Biosphere


Ecosystem

Answers

Answer:

It is Biosphere.

The Biosphere --contains all the planet's living things. This sphere includes all of the microorganisms, plants, and animals of Earth. Within the biosphere, living things form ecological communities based on the physical surroundings of an area.

How are novel variations added to a population?

Answers

Mutations. Mutations are changes to a organisms DNA and are an important driver of diversity in population. Species evolve because of the accumulation of mutations that occur over time. The appearance of new mutations is the most common way to introduce novel genotypic and phenotypic variance.

In her studies of chimpanzee behavior, Jane Goodall collected both qualitative
and quantitative data. Which of the following is an example of quantitative data?
(From Topic: 1.3 In studying nature, scientists form and test hypotheses)

Answers

chimpanzees are very common to bad behavior therefor statements on madness

An example of quantitative data is mothers and their infants typically nap for two to three hours each afternoon. Therefore, option A is correct.

What is quantitative data ?

The data expressing a certain quantity and amount or range is called as quantitative data. The two main types of quantitative data are discrete data and continuous data.

The difference between the qualitative data and quantitative data is the quantitative data is numbers-based, countable, or measurable while qualitative data is interpretation-based, descriptive, and relating to language.

In her studies of chimpanzee behavior, Jane Goodall collected both qualitative and quantitative data. Therefore, An example of quantitative data is mothers and their infants typically nap for two to three hours each afternoon.

Thus, option A is correct.

To learn more about the quantitative data, follow the link;

https://brainly.com/question/14810759

#SPJ2

Your question is incomplete, probably your question was

In her studies of chimpanzee behavior, Jane Goodall collected both qualitative

and quantitative data. Which of the following is an example of quantitative data?

(From Topic: 1.3 In studying nature, scientists form and test hypotheses)

A. Mothers and their infants typically nap for two to three hours each afternoon.

B. baiting the animals with bananas helped to attract them close enough for her to observe their social behavior and to photograph them.

C. researchers have observed chimpanzees using more than half a dozen tools for assorted purposes.

D. Other animals, including some birds and dolphins, are now known to use tools.

How do the hypothesis of microspheres and the RNA World hypothesis build off of each other?

Answers

Answer:

Microspheres are formed of proteins. It has been found that when an amino acid is permitted to get desiccated, then this amino acid produces proteins that in turn give rise to microspheres.  

On the basis of the RNA world hypothesis, the first genetic substance was considered to be an RNA, and then later the DNA turned out to be the genetic substance of higher species during the passage of evolution. It was also believed that microspheres comprised encoded information within it, and at the time of the splitting of microspheres, this encrypted information may have got transferred to the upcoming generation.  

Explanation:

Is biodiversity renewable or nonrenewable?

Answers

Answer:

renewable

Explanation:

Biodiversity refers to the variety of plant and animal wild life in the world or in a particular habitat which is important in that specific location. Renewable is anything that recycles itself through its consumption. Which is what happens in biomes. Life dies off and provides the necessary resources for new life to be reborn and so on, thus making Biodiversity renewable.

When the concentration of a substance higher on one side of the cells selectively permeable membrane, certain molecules may move by osmosis or diffusion through the membrane without the cell using any energy. This process is called

A.passive transport
B.active transport
C. Mitosis
D. Replication

Answers

Answer:

A.

Explanation:

osmosis and diffusion are both passive transport bc it doesnt require energy and only moves down cocentration gradient, never against concertration gradient. Give me a brainliest if i helped! ♡

When certain molecules may move by osmosis or diffusion through the membrane without the cell using any energy, the process is called passive transport.

When diffusion takes place between compartments separated by a membrane permeable to that solute, it is called simple diffusion.

Passive transport does not require any additional energy other than the movement of the molecules, moving these in favor of their concentration gradient.

In other words, simple diffusion does not require ATP expenditure, since it is a spontaneous phenomenon.

The molecules that are mobilized by simple diffusion through the membrane are the nonpolar and small, the fat-soluble and the small polar ones, but without a net electric charge, such as H2O.

In the particular case of H2O, passive transport is called osmosis, the passage of water through the membrane by osmosis always takes place spontaneously and very quickly.

H2O will diffuse from the compartment with the lowest concentration of solutes or hypotonic medium, to the compartment with the highest concentration of solutes or hypertonic medium, in such a way as to equalize the concentrations in both compartments.

Therefore, we can conclude that when certain molecules may move by osmosis or diffusion through the membrane without the cell using any energy, the process is called passive transport.

Learn more here: https://brainly.com/question/20771504

Suppose a doctor is asking whether eating carrots every day will improve his patients’ eyesight. Which statement would be a bad hypothesis for this study? If the patient is given carrots every day, then the patient’s eyesight will be closely monitored. If the patient is given carrots every day, then the patient’s eyesight will improve slightly. If the patient is given carrots every day, then the patient’s eyesight will improve significantly. If the patient is given carrots every day, then the patient’s eyesight will worsen.

Answers

Answer:

The answer would be C)If the patient is given carrots every day, then the patient’s eyesight will improve significantly.

Explanation:

Carrots makes your eyes get better and if someone keeps eating carrots everyday then their eyesight will improve A LOT

9) What trend do you notice about carbohydrates in the graph above?

your help is appreciated thanks ! :)

Answers

Answer:

carbohydrates burn within 2 hours after eating while lipids last 6 hours

Explanation:

carbohydrates are short term energy

and lipids are longer term of energy

The trend which can be noticed about carbohydrates in the graph above is that it increases the blood sugar level than the other food type.

In Science, biological macromolecules are mainly grouped into four (4) categories and these are;

Lipids.Nucleic acid.Proteins.Carbohydrates.

Carbohydrates are typically found in energy-giving foods and they aid in the proper functioning of the body of a living organism such animals and human beings.

Also, carbohydrates are broken down in the body into sugar but not proteins or fat.

This ultimately implies that, an increase in the intake of carbohydrates can cause a subsequent increase in the blood sugar level.

Based on the graph above, we can deduce that carbohydrates increases the blood sugar level than the other food type.

Read more: https://brainly.com/question/14681125

deo: Are Bones Living Organs???

Answers

Answer:

yes

Explanation:

A bone is a rigid organ that constitutes part of the vertebrate skeleton in animals. Bones protect the various organs of the body, produce red and white blood cells, store minerals, provide structure and support for the body, and enable mobility.

Answer the following question. How might the human condition be improved through biological and environmental
engineering?

Answers

Answer:

This chapter examines the range of human consequences of, and responses to, global environmental change. We begin by developing the concept of human consequences and showing why, to understand them, it is critical to understand the variety of human responses to global change. We then offer a framework for thinking about human responses and discuss the pivotal role of conflict. The next section examines three cases that illustrate many of the major factors influencing the human consequences of global change. The following sections describe the human systems that are affected by or respond to global change, and how they interrelate. We conclude by offering some general principles for research and some research implications.

am i correct? only if you actually know!! thank you

Answers

Answer: no it’s wrong it’s bacteria

The ____________ registers the signal coming from the receptor and formulates a response.

Answers

My answer to the question is Control center.

which statement best explains a way in which a cell gets rid of waste?

Answers

Explanation:

A.They filter waste and extra water from blood so they can create urine, which is removed from the body.

The statement that best explains the way in which a cell gets rid of waste is that the secretory vesicle/ transport vesicle fuses with the plasma membrane and releases its content outside the cell.

What is exocytosis?

Exocytosis is the process of secretory vesicles fusing with the plasma membrane, resulting in the extracellular release of vesicle content.

What occurs during exocytosis?It leads to integration of new proteins and lipids into the plasma membrane.Release of the content of secretory vesicle to extracellular medium.

To learn more about secretory vesicle, vacuole, exocytosis and transport vesicle here,

https://brainly.com/question/14727129

#SPJ2

Closed and Open Systems
An open system is one that receives input from
outside the system. For example, your body is an
open system because it receives food and oxygen
from outside the system (your body). What is another
example of an open system?

A rock in a field

An earthworm taking in soil for nutrition

Answers

Answer:

earthworm taking soil for nutrition

Explanation:

it's consuming the energy unlike the rock

An earthworm taking in soil for nutrition is another example of an open system, option B is correct.

An open system is characterized by its ability to exchange matter and energy with its external environment. In the case of an earthworm, it actively takes in soil for nutrition, breaking down organic matter and absorbing nutrients through its digestive system. This process allows the earthworm to grow, reproduce, and carry out essential life functions.

The exchange of soil, nutrients, and gases (such as oxygen) occurs continuously, sustaining the earthworm's biological activities. In contrast, a rock in a field does not interact with its environment in the same way. It remains a closed system, passively experiencing natural forces without actively receiving external inputs or engaging in metabolic processes, option B is correct.

To learn more about earthworm follow the link:

https://brainly.com/question/28690031

#SPJ2

The complete question is:

An open system is one that receives input from outside the system. For example, your body is an open system because it receives food and oxygen from outside the system (your body). What is another example of an open system?

A. A rock in a field

B. An earthworm taking in soil for nutrition

What happens after mitosis is complete?

Answers

Once the mitosis is complete, the entire cell is divided into two by the way of a process called cytokinesis.




The negative feedback system that allows a person to sweat is an example of which
characteristic of living things

Answers

Answer:

stops operating

Which of the following statements is not an observation?
O Jessie is wearing red shirt.
Jessie has blond hair.
O Jessie is wearing a red shirt because her blue one got dirty.
O Jessie has her hair in a ponytail.

Answers

Answer:

the 3rd option - Jessie is wearing a red shirt because her blue one got dirty.

What is the definition hereditability?

Answers

A statistic used in the fields of breeding and genetics that estimates the degree of variation in a phenotypic trait in a population that is due to genetic variation between individuals in that population.

What is the role of the nervous system in digestion? (1 point)
O to provide enzymes
O to provide electrical signals to initiate peristalsis
to provide passage of nutrients throughout the body
O to provide oxygen

Answers

C to provide passage of nutrients throughout the body

The role of the nervous system during digestion is to provide electrical signals to initiate peristalsis.

Peristalsis is a series of smooth muscle contractions which are capable of moving foods through the digestive tract.

This movement (peristalsis) is controlled by the autonomic enteric nervous system, which is one of the main divisions of the autonomic nervous system (ANS).

In conclusion, the role of the nervous system during digestion is to provide electrical signals to initiate peristalsis.

Learn more in:

https://brainly.com/question/10696265?referrer=searchResults

A red dwarf star has a high __________ and a low ____________.

Answers

Answer:

High mass and low temperature

Explanation:

Look at the image, and write the correct name of each biome from the following list. chaparral, taiga, deciduous forest, desert, grasslands, rain forest, savannah, tundra

Answers

Answer:

There are eight major terrestrial biomes: tropical rainforests, savannas, subtropical deserts, chaparral, temperate grasslands, temperate forests, boreal forests, and Arctic tundra. Biomes are large-scale environments that are distinguished by characteristic temperature ranges and amounts of precipitation.

Why is diversity important in science?

Answers

Answer:

Engaging people from a variety of genders, ethnicities, sexual orientations, perspectives, backgrounds, areas of expertise, religions, cultures, and other variables to participate in science is important for addressing inequities and increasing the size of the scientifically trained workforce.

Explanation:

In multicellular organisms, such as human beings, cells combine to form tissues, which combine to form organs, which combine to form organ systems, which all together make up the organism and enable it to function. This is an example of which theme in biology? Select one:
a. structure and function
b. unity and diversity
c. regulation
d. levels of organization​

Answers

Explanation:

structure and function

Answer:

d

Explanation:

Which of these micropipetters would serve best to deliver 55 microliters?a. 0.5 to 10 µL micropipetter b. 10 - 100 µL micropipetter c. 50 - 1000 µL micropipetter

Answers

Answer:

b. 10 - 100 µL micropipetter

Explanation:

The micropipetters that would serve best to deliver 55 microliters would be the one which has a volume capacity of 10-100 µL.

This is because it will be easier to measure 55 micro liters from the Pipette which has a standard range of 10-100 microliter.

0.5 to 10 µL doesn’t fall within the range and it will be very hard measuring the volume.

Other Questions
Which equation matches the graph shown?A.y=(x-2)(x-1)B.y=-(x-2) (x+1)c y= -( x+2) ( x*1)D. y= ( x-2) (x+1) If you know the force applied to an object and measure its acceleration, which equation would you use to calculate the objects mass? m = Fa m = a F m = a/F m = F/a You need to transmit PII via email and you want to maintain its confidentiality. Which of the following choices is the BEST solution?a. Use hashes.b. Encrypt it before sending.c. Protect it with a digital signature.d. Use RAID. What is this I need help Abdul wants to hang a square poster that measure 1 1/2 feet on a side in the center of a 12-foot-long wall. How far from the end of the wall should abdul place the side of the poster? According to the information presented here, which intersection has the highest number of accidents per year? A.Fir Ln. and Rural Rd.2. Union St. and Maple. St. First St. and Third Ave.3. Walnut St. and Birch4. St. Progress St. and Fruit St. For the following, identify the most likely value for x.a. BHx b. CHx c. NHx d. CH2Clx The second division of the Hebrew Bible is divided into two parts: Question 1 options: 1) Former and Latter Prophets 2) Major and Minor Prophets 3) Wisdom and Apocalyptic literature In survey of 200 game lovers, it was found that 130 like football, 90 like cricket and 20 did not like both games.how many persons were there who liked both games? * Which of the following consists of only one sugar?O FructoseO LactoseO MaltoseO Sucrose How many elements are represented in the formula CaCO3 Help with this Spanish question quick plz. What is non-science? Philosophy or art. Solve the equation for the indicated variable. A=r+rvf, for v The price of good X increases from $55 to $60, and quantity demanded decreases from 500 to 400. The price of good Y increases from $55 to $60, and quantity demanded decreases from 500 to 475. Given this information, the: good news there is a food truck for sale in your town that you have to decide to buy what type of food will you serve??) What are the transactions requirements for chase? One reason the cultures of North Africa developed differently from the cultures of the rest of Africa was that these areas were seperated by the-A- Arabian SeaB- Sahara desertC- Congo River BasinD- Great Rift Valleyplease help find the area of the figure Draft, write, and edit your summary sentence for the coyote piece. Make sure to start your sentence with a capital and end with a period. When you have your final sentence ready, type or copy and paste it into the box below.Many people believe that the dog is man's best friend. If this is the case, then the coyote is his worst enemy. The long, lean coyote can weigh 20 to 50 pounds. The bad reputation of the coyote goes back to his weakness for small animals. The coyote hunts at night and is particularly harmful to sheep, young pigs, and poultry. It is an intelligent animal. However, it is sometimes smart to have coyotes around. When valuable farm animals are protected, the coyote will often free the farm of other animals, like rabbits, which can ruin crops and certain trees. The coyote is especially helpful in keeping down the rodent population. Where coyotes have been allowed to do their work without interference from ranchers and fruit growers, they have found them so valuable that they would no more eliminate them than they would eliminate their own dogs.