isaac is investigating how long it takes his dog to react to different sounds. what is the independent variable?

Answers

Answer 1

Answer:

the sounds

Explanation:


Related Questions

In order from youngest to oldest, what is most likely the correct order for the rock layers??

Answers

Answer: 1, 5, 2, 3, 4.

Explanation: Using process of elimination layer four should be the oldest and the only one that has layer four last is number 2. Therefore I assume it is number 2.


please help i’ll give brainliest

Answers

Answer:

the largest amount of organisms are the producers, so yeah choose producers

Help please at least two sentences

Answers

The carbon circulates through the air. And then goes into the animal. Hope this helps!

what is the difference between emphysema and chronic bronchitis? Thanks.

Answers

The main difference between these conditions is that chronic bronchitis produces a frequent cough with mucus. The main symptom of emphysema is shortness of breath. Emphysema can sometimes arise due to genetics. An inherited condition called alpha-1-antitrypsin deficiency can cause some cases of emphysema.

Answer:The main difference between these conditions is that chronic bronchitis produces a frequent cough with mucus. The main symptom of emphysema is shortness of breath. Emphysema can sometimes arise due to genetics. An inherited condition called alpha-1-antitrypsin deficiency can cause some cases of emphysema.

Explanation:trust

How are flowering plants and conifers alike? A.They both have incomplete flowers. bThey both make fruits. cThey both reproduce by means of seeds. dThey both have leaves that look like thin needles

Answers

Answer:

cThey both reproduce by means of seeds.

Explanation:

This is because both flowering plants and conifers reproduce by seeds. Although Conifers are gymnosperms, and angiosperms are flowering plants but conifers grow their seeds naked, it often appear on the scales of a cone, instead of encased in fruit. The flowering plants seeds are encased in fruits. Both conifers and flowering plants are vascular plants that is they have vascular tissues which help them conduct water and nutrients

Una persona sana necesita 1500 cal diarias para mantener su peso y su actividad rítmica normal ¿Cuántos J se obtendrá en 18,5 horas?

Answers

Answer:

4838J se requieren en 18.5 horas

Explanation:

Para resolver esta pregunta debemos, primero, hallar la cantidad de calorías necesarias para 18.5h (Ya sabemos que para 24 horas se necesitan 1500 calorías). Después, este resultado debemos convertirlo a Joules (1cal = 4.184J):

Calorías en 18.5h

18.5h * (1500cal / 24h) = 1156.25cal son requeridas en 18.5 horas

Joules requeridos:

1156.25cal * (4.184J / 1cal) =

4838J se requieren en 18.5 horas

How does biological fitness relate to an organism's ability to survive and
reproduce? *

Answers

Answer:

The biological fitness of an organism is dependent on its ability to survive and reproduce in a given environment. If different traits or alleles increase the fitness of an organism, those alleles will consequently increase in the gene pool, and that trait will increase in the population.

Explanation:

Identify following phases of meiosis (URGENT!)

Answers

Answer:

Prophase I

Metaphase I

Anaphase I

Telophase I

Meiosis stage 1 Phases ^

Meiosis stage 2 phases

Prophase II

Metaphase II

Anaphase II

Telophase II


1. What helped Philip Gingerich decide what kind of fossil he found?

Answers

Answer:

many colleagues

Explanation:

Ryder needs to determine the missing term in this set: sperm, egg, zygote, ________ Which term best completes the set?

Answers

Answer: fertilization

Explanation:

Answer:

Answer is D. Fertilization

Fertilization happens when a sperm cell successfully meets an egg cell in the fallopian tube. Once fertilization takes place, this newly fertilized cell is called a zygote. From here, the zygote will move down the fallopian tube and into the uterus. The zygote then burrows into the uterus lining.

Explanation:

hope this helps!

NEED HELPPPPPPPPPPPPP

Answers

Answer:

thymine

Explanation:

Chargaff's rules state that DNA from any species of any organism should have a 1:1 protein stoichiometry ratio (base pair rule) of purine and pyrimidine bases (i.e., A+G=T+C) and, more specifically, that the amount of guanine should be equal to cytosine and the amount of adenine should be equal to thymine.

free interesting facts about Jordan creek springfield missouri

no links please​

Answers

Springfield's nickname is "Queen City of the Ozarks" as well as "The 417" after the area code for the city. It is also known as the "Birthplace of Route 66". It is home to three universities, Missouri State University, Drury University, and Evangel University.

Explanation:

Here it is.Mark me as brainliest please if u are satisfied with this.

What do these gases form in the atmosphere that is detrimental? How does this then negatively affect plants, animals and the environment?

referring to: Sulfuric acid and Sulfur trioxide.

Answers

Answer:

They form from burning fossils fuels like coal and oil that put more carbon dioxide in the atmosphere. An example of its negativity affect is the melting ice caps it adds more heat which speeds up the melting process (duh) this is the change in animals and the environment and for and for plants it can cause a negative impact on growth.

Explanation:

What type of chemical bond exists between two water molecules

Answers

Answer: Hydrogen bonds

Hydrogen bonds, type of chemical bond exists between two water molecules.

What is a chemical bond?

A chemical bond is what binds atoms in molecules together. Electrical forces between positive charge atomic nuclei and negative-charged electrons form bonds. A chemical bond is a long-lasting attraction between ions or atoms that allows molecules and crystals to form.

Hydrogen bonds arise between neighboring water molecules' hydrogen and oxygen atoms. A hydrogen bond is formed by the attraction of individual water molecules. A water molecule is made up of two hydrogen and oxygen atoms atom, with one partly positive hydrogen atom connected to a more highly electronegative atom.

Learn more about on chemical bond, here:

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Your question is incomplete, but most probably the full question was.

A) ionic bondsB) hydrogen bondsC) covalent bondsD) valence bonds

I need help ...please seriously

Answers

Answer:

I think the answer is B

Explanation:

Human reproduction takes place as internal fertilization by sexual intercourse. During this process, the erect penis of the male is
inserted into the female's until the male ejaculates semen, which contains sperm.
es )
A)
cervix
B)
ovaries
uterus
D)
vagina

Answers

Answer:

D) Vagina

The vagina is the inside of the female reproductive system leading to the cervix which separates the vagina from the uterus and ovaries where eggs are produced and stored until released monthly.

What is the role of the nervous system in the body?
A.To protect other organs and tissues
B.To send messages using blood cells
C.To gather and respond to information
D. To transport oxygen and carbon dioxide

Answers

C. To gather and respond to information

The nervous system supplies information to the brain about its surrounding through sensory organs (via nerves), which then send the information to the brain via the spinal cord.

A geothermal power plant is like a regular power plant except that no fuel

is burned to heat 3. _____________ into 4.______________. The steam in a geothermal

power plant is heated by the Earth. Like other power plants, they use many of the same

components including 5. ____________________, 6. ____________________ and other

standard power operating equipment.​

Answers

Answer: 3. Water 4 steam. 5. Turbine 6. Generator

Explanation:

Is race a biological characteristic determined by our genes?

Answers

Answer:

No, they are not. The concept of human races appears to be solidly grounded in present-day biology and our evolutionary history. But if you asked that conference of geneticists to give you a genetic definition of race, they wouldn’t be able to do it. Human races are not natural genetic groups; they are socially constructed categories. Genes certainly reflect geography, but unlike geography, human genetic differences don't fall along obvious natural boundaries that might define races.

The greenhouse effect on Earth keeps it warm enough for liquid water to exist. However, on Venus, the greenhouse effect warms the planet to ___. A 460°C B 900°C C 90°C D 47°C​

Answers

Answer:

A. 460°C

or about 900 degrees fahrenheit


Which is the meaning of the Latin root "terra"?
1.time
2. earth
3. end
4.sea

Answers

Answer:

it means earth

Explanation:

Which of the following is a physical adaptation for the underlined animal?

Answers

Answer:

Physical adaptations do not develop during an individual animal's life, but over many generations. The shape of a bird's beak, the color of a mammal's fur, the thickness or thinness of the fur, the shape of the nose or ears are all examples of physical adaptations which help different animals survive.

PLEASE ANSWER, WILL GIVE BRAINLIEST
Which of the following best describes the use of rainforest plants as anticancer drugs? a. Most rainforest plants have been tested for their cancer fighting properties.
b. Twenty-five percent of the active ingredients in cancer drugs are exclusively rainforest plants.
c. The most powerful anticancer drugs are not rainforest plants.
d. All of the above

Answers

Answer:

b. Twenty-five percent of the active ingredients in cancer drugs are exclusively rainforest plants

Explanation:

Answer:

B.

Explanation:

Human ovaries play an important role in reproduction. Which part of a
plant contains structures similar to human ovaries? (A)flower (B)leaf (C)stem (D)root

Answers

Answer:

c stem

Explanation:

The organism in the photo is a daphnia, or water flea. Daphnia are tiny aquatic organisms that live in most freshwater habitats. Adults range from less than 1 to 5 mm in length. They are good swimmers and eat mostly algae. Daphnia become mature at 5 to 10 days, and an adult female can produce up to 100 eggs every 3 or 4 days during its 2-month life span. When harmful algae rapidly increase in the daphnia environment, daphnia can develop adaptations to tolerate the negative effects of the algae within 10 years. What characteristic of the daphnia allows the population to adapt to environmental change

Answers

Answer:

The characteristic of daphnia which allows the population to adapt to the environmental change is the short generation time.

Explanation:

As evident from the text, the maturity comes in 5 to 10 days and they reproduce for the next 2 months at a rate of 100 eggs every 3/4 days. This is a short generation time which makes the evolutionary changes easy and less time-consuming to incorporate.

____ The bristle worm living with the hermit crab.
A. Mutualism
B. Commensalism
C. Parasitism

Answers

Answer:

A. Mutualism

Explanation:

Mutualism The bristle worm living with the hermit crab.

Which organisms in this food web have a Producer/Consumer
Relationship?

Answers

Answer:

what food web?

Explanation:

A student was asked to prepare a model of the rock cycle as it moves matter slowly through the Earth. The student creates a model,
as shown here. In order to revise the model, how should the lettered components be modified in order to create an accurate model?
Select all choices that apply
es )
A)
Letter A should represent igneous rock that is extruded from magma,
B)
Letters A and B should both be igneous rock, which is found near the
Earth's surface.
C)
Letters and B should be sedimentary rock, which is found under layers of
other materials
D)
Letter C should represent metamorphic rock which changes composition
under heat and pressure.
E)
Letter B should represent sedimentary rock that is buried by layers of sand
and deposited material.

Answers

Answer:

A) Letter A should represent igneous rock that is extruded from magma.

D) Letter C should represent metamorphic rock which changes composition under heat and pressure.

E) Letter B should represent sedimentary rock that is buried by layers of sand and deposited material.  

Explanation:

Igneous rock comes from magma/lava. Sedimentary rock is buried as layers are deposited. The metamorphic rock is formed when one type of rock changes from one form to another. The single letter options are all right here.

The Rock Cycle is related to transformation of three basic Rock types into one another through the Plate tectonic activity, along with weathering and erosional processes. Hence Correct options are A, D, and E.

The Rock Cycle

It is a phenomenon through which three basic types of Rock transformed into one another. These three types of Rock are Igneous, Metamorphic, and Sedimentary rocks.

Therefore, to prepare a model which shows Rock Cycle, student need to have three types of Rock as mentioned in option A, D, and E.

A) Letter A should represent igneous rock that is extruded from magma.

D) Letter C should represent metamorphic rock which changes composition under heat and pressure.

E) Letter B should represent sedimentary rock that is buried by layers of sand and deposited material.  

Learn More about Rock Cycle here:

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FIRST TO ANSWER GETS 25 POINTS AND BRAINLYEST A. Describe how electricity is generated in a coal power plant.
B. Provide one example of a RENEWABLE ENERGY SOURCE that creates electricity
in a "similar" way.

Answers

Answer:

A.  By burning coal in a boiler to produce steam. The steam produced, under pressure, flows in a turbine, which spins a generator to create electricity

B.  Wind turns the propeller-like blades of a turbine around a rotor, which spins a generator, which creates electricity

What are the sides of the DNA ladder made of?

Answers

Answer:

The sides of the ladder are made of alternating sugar and phosphate molecules. The sugar is deoxyribose. The rungs of the ladder are pairs of 4 types of nitrogen bases. Two of the bases are purines- adenine and guanine.

Explanation:

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Answer:

Explanation:

The shape of DNA is a double helix, which is like a twisted ladder. The sides of the ladder are made of alternating sugar and phosphate molecules. Deoxyribose, which is a pentose, and a phosphate group are the two molecules that together form the two sides of the DNA. The rungs of the ladder are pairs of 4 types of nitrogen bases.

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