WILL GIVE BRAINLIEST!!
Which research method would be most appropriate for investigating the relationship between the number of hours teenagers sleep and the amount of caffeine consumed on a daily basis?

Case study
Experiment
Laboratory observation
Naturalistic observation
Survey

Answers

Answer 1

Answer:

Survey

Explanation:

Because if you think about it carefully you really cant observe it. Your main goal is to compare them and with that we need a survey to get the data from both sides. Leaving us with the Survey


Related Questions

what is a primate

what is a primate ​

Answers

Answer:

depends what context

Explanation:

In terms of biology, a primate is a mammal of an order that includes the lemurs, bushbabies, tarsiers, marmosets, monkeys, apes, and humans. (distinguished by having hands, feet that are similar to hands, and forward-facing eyes, and, with the exception of humans, are typically agile tree-dwellers)

However in terms of religion, a primate is the chief bishop or archbishop of a province

(p.s check the dictionary!!) :)

Define transcription AND explain how RNA leads to the production of a protein (aka polypeptide/amino acid sequence).

Answers

Answer: Transcription is a process in which a cell makes an RNA copy of a piece of DNA. The type of RNA that contains the information is called messenger (mRNA) because it carries the info, message  from the DNA out of the nucleus into the cytoplasm.

Explanation: RNA is needed to help carry out the instructions in DNA, Like DNA, RNA is made up of nucleotide

inherited structures of bears

Answers

Common characteristics of modern bears include large bodies with stocky legs, long snouts, small rounded ears, shaggy hair, plantigrade paws with five nonretractile claws, and short tails.

A cross where we follow the inheritance of 2pairs of alleles is called

Answers

The answer is: dihybrid. Let P = purple flowers and p = white, and T = tall plants and t = dwarf.

Mountains are formed at continental plates that converge because they have
similar

Answers

Answer:

When two plates of continental crust collide, the material pushes upward. This forms a high mountain range. The remnants of subducted oceanic crust remain beneath the continental convergence zone

Explanation:

helppp
I dunno how to answer theseeeee im so confuseddddddddd

Answers

Answer:

We know energy is transferred because it is exchanged at each level when one consumer eats another consumer.

You can provide evidence by comparing the units at each level.

please I need help immediately, describe an experiment to verify the living organisms in the soil.​

Answers

Answer:

Soil living organisms compromise from mammals (such as rats) to micro organisms (such as nematodes and protozoa). Soil organisms help in the modification of soil, and also in the decomposition of organic matter. However they can also pose as a treat to to some crops, as they are responsible for some plant diseases.

Explanation:

When living organisms breathe they give out carbon dioxide gas as a waste product. Carbon dioxide gas can be detected (identified) using a carbon dioxide indicator solution called bromothymol blue. To find out if there are living organisms present in the four different levels of soil takenfrom the deciduous forest.

The diagram below shows the eye, with several features labeled



which part of the eye controls how much light enters the eye?
1. Α
2. B
3. C
4. C

Answers

Your answer would be B. The Iris :))

the autonomic nervous system controls
A. tying your shoes
B. Heart Rate
C. chewing a bite of food
D. using a fork

Answers

The answer will be :

B. Heart Rate

the answer is B heart rate

What is inside a bacteriophage?
O protein
O DNA
O carbohydrate
O lipid

Answers

Answer:

the correct answer is DNA

Which part of the brain is responsible for decision making, problem solving and planning?.

Answers

Answer:

The prefrontal cortex.

Explanation:

Which type of rock cools on the earth's surface?

Answers

Explanation:

extrusive

The two main categories of igneous rocks are extrusive and intrusive. Extrusive rocks are formed on the surface of the Earth from lava, which is magma that has emerged from underground. Intrusive rocks are formed from magma that cools and solidifies within the crust of the planet

I Think Igneous Rock But I Dunno

What is the most likely effect of this?
an increase in mutations in both bird populations
an increase in gene flow between the bird populations
an increase in genetic drift between the bird populations
an increase in mutations in the island population

Answers

Answer:

B. An increase in gene flow between the bird populations.

Explanation:

Answer:

B (gene glow)

Explanation:

an increase in gene flow between the bird population

what race does tachycardia affect the most?

Answers

Answer: Out of 3556 patients there were 2916 whites, 266 blacks, 248 Hispanics, 63 Asians, and 63 of another ethnicity.

Explanation:

What do free ribosomes do?
A. raise alarms when the cell is under attack
B. float around the cell looking around then report back
to the nucleus
C. attach to mRNA to create proteins that are used
within the cell
D. maintain homeostasis by keeping the cell at a normal
temperature

Answers

C because mRNA needs to go through ribosomes in order to create proteins!
Answer : C create proteins


Post-translational modifications of proteins may include which of the following processes?

Answers

Post-translational modifications of proteins makes them functional and include:

methylationaddition of disulphide bridges folding phosphorylation

What is post-translational modification of proteins?

Post-translational modifications of proteins refers to modifications that are made on new synthesized proteins after synthesis at the ribosomes.

Post-translational modifications of proteins are important as they help to convert the proteins into their active forms.

Some post-translational modifications of proteins include:

methylationaddition of disulphide bridges folding phosphorylation

Therefore, post-translational modifications of proteins are required to make proteins functional.

Learn more about proteins at:https: //brainly.com/question/884935

An image of a wooly mammoth and a mastodon is shown here. Analyze the similarities and differences between these species and
present-day elephants. Evaluate the statements below and select the one(s) that accurately describe the evolution of these
species. Select ALL that apply.

Answers

Several factors were important for the extinction of mammoths to mastodons, and natural selection of the elephant, mainly the ecosystem they lived in and the search for food.

What are the differences between the mammoth and the elephant?

The mammoth is an animal that was once extinct and belonged to the genus Mammuthus and the family Elephantidae which included the proboscidians. Elephants differ from mammoths in that mammoths had their bodies covered with hair. Also, elephants are slightly smaller than mammoths.

What are the differences between the mastodon and the elephant?

Both were herbivores, but the mastodons had conical-shaped teeth designed to crush leaves and branches more easily. Mammoths had rough molars, allowing them to cut through vegetation and graze like modern elephants.

Whit this information, we can conclude that several factors were important for the extinction of mammoths to mastodons, and natural selection of the elephant, mainly the ecosystem they lived in and the search for food.

Learn more about mammoth in brainly.com/question/14877024

Answer: B C E

Explanation: Usatestprep

Please help me asap! 20 points!!!

Can someone help me with this question?

Answers

Answer:

Wait there bones look like that

Explanation:

I did not know that they look like that the more you know

Which of the following agricultural practices can cause ecosystem disruption?

Tiling soil
Storing crops
Slash-and-burn
Drip irrigation

Answers

Answer:

C.) Slash-and-burn

Explanation:

took the exam and got it right

At the molecular level, how do scientists know a new species has arisen?

Answers

Answer:

DNA sequencing has brought us the genetic species concept. In this model, species are defined by genetic isolation rather than reproductive isolation. Species may be more or less identical morphologically, but differences in DNA determine whether or not a population is a new species.

Explanation:

? :-)

Question 1
Which of these correctly distinguishes mitosis from meiosis?

Question 1 options:
Mitosis occurs in germ cells and meiosis occurs in somatic cells.


Meiosis produces four 2N daughter cells; mitosis produces two 2N daughter cells.


Crossing over takes place in mitosis and not in meiotic cell division.


The number of chromosomes remains the same in mitosis and is reduced by half in meiosis.

Answers

Answer:

Crossing over takes place in mitosis and not in meiotic cell division.

Explanation:

Mitosis occurs in somatic cells and meiosis occurs in germ cells. The crossing over event takes place in meiotic cell division and not in mitosis. Meiosis produces four n daughter cells.

Convert 650 mm Hg to kPa and atm​

Answers

Kilopascal 86.6596
atm 0.855263

What does the process of cellular respiration begin and end with?
a. oxygen, glucose
b. energy, glucose
c. glucose, energy
d. glucose, oxygen

Answers

Answer:

C. glucose, energy

Explanation:

Glucose is ‘raw material’ in cellular respiration. It passes through the glycolysis cycle, in the cytoplasm of the cell. This occurs in virtually all cells. In eukaryotic cells, with mitochondria, the product of glycolysis (usually pyruvate) is channeled to the organelle and pass through the Citric acid /Krebs cycle that produces even more ATPs than glycolysis.

The answer is C the guy above me is right

As plants diverged from a common ancestor, characteristic features evolved that distinguished
the main plant groups from one another. Which statement shows the evolutionary sequence in
which these features developed?
A. vascular tissue, seeds, flowers
B. seeds, vascular tissue, flowers
C. flowers, seeds, vascular tissue

Answers

The statement 'vascular tissue, seeds, flowers' shows the evolutionary sequence in which plant features developed (Option A).

What is evolution?

Evolution means descendence with modification, which mainly occurs due to natural selection.

In terrestrial plants, the main evolutionary feature that emerged was the appearance of vascular tissues.

Subsequently, terrestrial plants evolved to produce seed plants and then flowers (angiosperm plants).

Learn more about plant evolution here:

https://brainly.com/question/843904

please help me what organism is the secondary consumer ?

Answers

Answer:

I believe it is the fox

Answer:

It would be most likey the worm dood.. most likely because he is a consumer that would gain his resources from the tree.

Explanation:

Which type of river is healthier for ecosystems?
A. channelized
B. meandering

Answers

Meandering

Explanation:

If u meander, then ur healthy

It should be Meandering as it allows water to curve and decreases velocity.

What happens to ADP after ATP hydrolysis?

Answers

Answer:

ADP is combined with a phosphate to form ATP in tADP+Pi+free energy→ATP+H2O

Explanation:

The energy released from the hydrolysis of ATP into ADP is used to perform cellular work, usually by coupling the exergonic reaction of ATP hydrolysis with endergonic reactions.

How do creosote plants defend against predators?

by growing in hard-to-reach places

by growing sharp, stinging hairs over their bodies

by producing bad-tasting oil in their leaves

by producing deadly toxins in stems and leaves

Answers

Answer:

The answer should be By growing sharp, stinging hairs over their bodies.

Explanation:

It is spring in New York City and Washington, D.C. The temperatures in New York City are well above freezing, while a thunderstorm is expected in Washington. Which forms of precipitation would you predict in these two cities under these conditions?

a Rain in New York City and hail in Washington, D.C.

b Sleet in New York City and rain in Washington, D.C.

c Snow in New York City and hail in Washington, D.C.

d Rain in New York City and sleet in Washington, D.C.

Answers

Answer:

(C) - Snow probably in New York City and hail in Washington, DC

An individual invested $5,000 into two accounts. They placed part of it into an account that earned 4.5% and the rest in an account that earned 6%. The total annual income generated from this investment in simple interest was $270. How much was invested in each account?

Answers

Based on the total annual income from simple interest, $2000 was invested in Account 1 while $3000 was invested in Account 2.

What is simple interest?

Simple interest the amount of interest charged on a sum at a given rate and for a given period of time.

Simple interest = Principal × rate × time

In simple interest, the principal amount is always the same.

Given that the principal is $5000

This amount was invested into two account at the following rates:

Account 1 at 4.5% interest rate

Account 2 at 6% interest rate

Total income from simple interest = $250

Let amount invested in Account 1 be y; amount invested in Account 2 will be 5000 - y

Interest on Account 1 = y × 4.5% × 1 = 0.045y

Interest on Account 2 = (5000 - y) × 6% × 1 = 300 - 0

06y

0.045 y - 0.06y + 300 = 270

-0.015 y = -30

y = 2000

5000 - y = 3000

Therefore, $2000 was invested in Account 1 while $3000 was invested in Account 2.

Learn more about simple interest at: https://brainly.com/question/25793394

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