An experimenter wants to observe the growth rate of radish seeds under
different temperatures to see if it affects their growth rate. The
experimenter adds water to each seed and places them under several
different heating lamps. The length of their roots is measured every 6
hours. In this experiment the type of soil used is which variable?
A: control. B:Independent. C: Dependent. D: none of these

Answers

Answer 1

Answer:

D, none of these.

Explanation:

The control group is going to be the radish seeds, they stay the same. The independent variable is the heating lamps and their temperatures. The dependent variable is the seed's growth rates.


Related Questions

will osmosis occur?
if so which direction?​

Answers

The solution in the berzelius glass has a concentration of 50%, the other solution has a concentration of 30%. In osmosis water moves from the solution with a lower concentration to the solution with the higher concentration. Therefore, water will move from the 5%glucose,25%starch solution to the 20%glucose, 20%K⁺,10% iodine.

In osmosis, water always moves from an area of higher water concentration to one of lower concentration.

If the yellow allele is dominant (Y) and the green allele is recessive (y), what are the possible genotypes of a green offspring?

Answers

Answer:

yy

Explanation:

it can only be yy because you need 2 recessive genes to show a recessive trait.

A plant with Yy genes could pass the recessive genes on, but would still show the dominant trait.

The possible genotype of the green offspring is yy, i.e., recessive one and will express only in absence of dominant allele.

What is genotype?

In a broad sense, the word "genotype" refers to an organism's genetic makeup; in other words, it describes an organism's entire set of genes.

In a narrower sense, the term can refer to the alleles, or variant forms of a gene, that an organism carries.

A genotype is a classification of the type of variant found at a specific location (i.e., a locus) in the genome.

Symbols can be used to represent it. For example, the letters BB, Bb, bb could be used to represent a specific variant in a gene.

In the given scenario, Y is dominant allele which will express in combination with y means the recessive one.

Thus, for expressing the green allele, it should be yy.

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The different forms of a gene are called
(1 Point)
traits
hybrids
alleles

Answers

I believe it’s alleles

What was “transformed” in griffiths experiment

Answers

Answer:

Griffith's Experiment was an experiment done in 1928 by Frederick Griffith. It was one of the first experiments showing that bacteria can get DNA through a process called transformation. ... In this experiment, bacteria from the III-S strain were killed by heat, and their remains were added to II-R strain bacteria

Answer: The R bacteria.

Explanation:

In the bacterial transformation experiment, Griffith saw that the R strain of bacteria could be changed, or 'transformed' into S-strain bacteria when they were mixed with dead S-strain bacteria.

Hope this was helpful.
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I need to know this I will MARK BRAINLIEST WHO EVER ASWERS FIRST

Answers

Answer:

If i am supposed to choose more than one, i would say that plants, animals and bacteria are biotic factors.

Explanation:

A biotic factor is a living organism that shapes its environment.

Someone please help me
Question: The organism shown is called Chlamydomonas. What domain does it belong to? Look at the parts. What do they tell you about this kind of organism? ​

Answers

Answer:

it belongs to the Eukarya domain

Explanation:

it has both plant and animal characteristics

In some types of colon cancer, stem cells have a mutation in the APC gene. what happens if the APC gene is mutated?

Answers

Answer:

People with mutations in the APC gene have familial adenomatous polyposis (FAP) or attenuated FAP (AFAP).

A pollen grain is:

a. the male reproductive structure of the seed plant.

b. the female reproductive structure of the seed plant.

c. the male reproductive structure of algae.

d. the female reproductive structure of algae.

Answers

A is the answer to this question

list 2 examples of traits​

Answers

Answer:

Eye color

Blood type

Explanation:

 your hair and eyes also your eye color

Explanation:

Why would horses from North America settle in southern Russia?

Answers

Are wild horses truly “wild,” as an indigenous species in North America, or are they “feral weeds”—barnyard escapees, far removed genetically from their prehistoric ancestors? The question at hand is, therefore, whether or not modern horses, Equus caballus, should be considered native wildlife.

The question is legitimate, and the answer important. In North America, the wild horse is often labeled as a non-native, or even an exotic species, by most federal or state agencies dealing with wildlife management, such as the National Park Service, US Fish and Wildlife Service, and the Bureau of Land Management. The legal mandate for many of these agencies is to protect native wildlife and prevent non-native species from causing harmful effects on the general ecology of the land. Thus, management is often directed at total eradication, or at least minimal numbers. If the idea that wild horses were, indeed, native wildlife, a great many current management approaches might be compromised. Thus, the rationale for examining this proposition, that the horse is a native or non-native species, is significant.

The genus Equus, which includes modern horses, zebras, and asses, is the only surviving genus in a once diverse family of horses that included 27 genera. The precise date of origin for the genus Equus is unknown, but evidence documents the dispersal of Equus from North America to Eurasia approximately 2–3 million years ago and a possible origin at about 3.4–3.9 million years ago. Following this original emigration, several extinctions occurred in North America, with additional migrations to Asia (presumably across the Bering Land Bridge), and return migrations back to North America, over time. The last North American extinction probably occurred between 13,000 and 11,000 years ago (Fazio 1995), although more recent extinctions for horses have been suggested. Dr. Ross MacPhee, Curator of Mammalogy at the American Museum of Natural History, and colleagues, have dated the existence of woolly mammoths and horses in North America to as recent as 7,600 years ago. Had it not been for previous westward migration, over the 2 Bering Land Bridge, into northwestern Russia (Siberia) and Asia, the horse would have faced complete extinction. However, Equus survived and spread to all continents of the globe, except Australia and Antarctica.

In 1493, on Columbus’ second voyage to the Americas, Spanish horses, representing E. caballus, were brought back to North America, first in the Virgin Islands, and, in 1519, they were reintroduced on the continent, in modern-day Mexico, from where they radiated throughout the American Great Plains, after escape from their owners or by pilfering (Fazio 1995).

Critics of the idea that the North American wild horse is a native animal, using only selected paleontological data, assert that the species, E. caballus (or the caballoid horse), which was introduced in 1519, was a different species from that which disappeared between 13,000–11,000 years before. Herein lies the crux of the debate. However, neither paleontological opinion nor modern molecular genetics support the contention that the modern horse in North America is non-native.

Equus, a monophyletic taxon, is first represented in the North American fossil record about four million years ago by E. simplicidens, and this species is directly ancestral to later Blancan species about three million years ago (Azaroli and Voorhies 1990). Azzaroli (1992) believed, again on the basis of fossil records, that E. simplicidens gave rise to the late Pliocene E. Idahoensis, and that species, in turn, gave rise to the first caballoid horses two million years ago in North America. Some migrated to Asia about one million years ago, while others, such as E. niobrarensis, remained in North America.

An unidentified plant produces spores, has many cells, but does not have true leaves. What plant is it?

A. liverwort
В. fern
C. gymnosperm
D. angiosperm

Answers

Fern is the correct answer

An unidentified plant produces spores, has many cells, but does not have true leaves. It is a fern or the angiosperms. Thus, option C is correct.

What are angiosperms?

Angiosperms, that are also known as flowering plants, have “seeds” that are sealed off within an “ovary”, while gymnosperms do not have fruits or flowers and have uncovered seeds on the surface of leaves. Seeds of gymnosperms are often arranged as “cones”.

The features and characteristics that distinguish angiosperms from gymnosperms are fruits, flowers, and “endosperm” in the seeds. Examples of “Angiosperms” are “monocots” like orchids, lilies, agaves, grasses and dicots like, peas, roses, sunflowers, maples and oaks. “Gymnosperm” examples include “non-flowering evergreen” trees like pine, fir and spruce.

Therefore,An unidentified plant produces spores, has many cells, but does not have true leaves. It is a fern or the angiosperms. Thus, option C is correct.

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will make brainliest help asap
Human blood type is
determined by multiple alleles (A, B, and o) Which ratio would result from a cross between a man with heterozygous Type A blood and a woman with Type O blood?
50% Type A 50% Type O
50% Type AB 50% Type O
100% Type A
100% Type O

Answers

Answer:

Explanation:

1st one

Answer:

In this problem, there is no uncertainty abt the genotype of either parent. A parent of blood type AB has the co-dominant IA and IB alleles. A parent of blood type O is homózygous recessive for the i allele.

The Punnett square for their offspring is shown to the right. The genotypes of their offspring could be either IAi or IBi. Their children could be in blood groups A or B, but not AB or O.

Explanation:

Most-likely the third one.

Active transport occurs through which type of biomolecule?
Proteins
Lipids
Carbohydrates
Nucleic acids

Answers

Nucleic acids. It is this becasue In my science call today they said this

Nucleic acids is the first answer I know I took the test and got it right

What level in the hierarchy of life would have many characteristics in common?

Answers

ecosystem and biosphere

If a fish has 30 chromosomes in each of its somatic cells, how many chromosomes will be in each daughter cell after mitosis?

Answers

Answer:

it would be 60

Explanation:

because if haploid cells double the amount of chromosomes then diploid would do the opposite

I WILL MARK BRAINLIEST!

Answers

Answer:

Nucleus

Explanation:

Nucleus is the most common cell that a animal will have.

Hope this helps:)

Pls mark brainliest

The nucleus

hope this helps you out .

i don’t want the brainliest by the way lol.

Which organisms should be classified in more than one trophic level?

Answers

A trophies level pertains to the position of an organism in the food chain. Humans are the most dominant organism that belong to more than one trophies level. When we eat plants we become the secondary or the tertiary consumers.

Birds are also organisms that belong to more than one trophies level. When birds eat seeds they become the primary consumer, but when they eat insects they become the secondary or even the tertiary consumers.

Explain how an evergreen tree stores water during months of little rain.

Answers

Answer:

i think they are orignally from cold areas so they store water and moisture in there needles. and they stay green year round.

Explanation:

A farmer is spraying his crops with a specific pesticide. He notices a drastic decrease in the insect population, so he uses the same pesticide the next year. This time, more insects survive. The next year, almost no insects are killed by the pesticide. Why is this happening?

Answers

Answer:

Probably insects developed resistance to the pesticide.

Explanation:

The term resistance refers to an inheritable change in the population sensitivity, reflected through the consecutive failure of the chemical effects, correctly used in order to reach a certain effect on the insect population.  

Insecticides might produce a genetic modification in the insects, leading them to survive under the effects of the chemical. Insects evolve with the capability of tolerating the poison dose that normally is used to destroy a normal population of plagues.

In the exposed example, the first time that the farmer sprayed the pesticide, the insect population decrease sharply. This means that the chemical affected them severely. The surviving individuals probably suffered a genetic modification and survived. They probably passed this modification to the following generations, which expressed it, and developed resistance to the pesticide.

What part of the cardiovascular system is directly responsible for nutrient transport?

Answers

Answer:

Circulatory system

Explanation:

It is the body's delivery system, concerned with circulating blood to deliver oxygen and nutrients to every part of the body.

Answer:

blood

Explanation:

I took the test on edg.

How many total autosomes are present ina
bug's normal karyotype?

Answers

Answer:

The insect species being studied has three pairs of homologous chromosomes. The first two pairs are autosomes; the last pair are sex chromosomes. Sex determination is the same as in humans (XX=female, XY=male).

Explanation:

I hope this helped, Have a Wonderful Day/Night!!!

Secretions from the pancreas contain compounds called lipases. Lipases increase the rate of digestion of lipids.
Lipases are an example of which of the following?
• Enzymes
• Simple sugars
Nucleic acids
• Hormones

Answers

Lipases are enzymes that lead to the hydrolysis of lipids.

What happens when a stationary front passes?

Answers

Answer:

_________

Explanation:

Because a stationary front marks the boundary between two air masses, there are often differences in air temperature and wind on opposite sides of it. The weather is often cloudy along a stationary front, and rain or snow often falls, especially if the front is in an area of low atmospheric pressure.

What are mutations, and how can they affect proteins?

Answers

Answer:

A mutation is a change in a DNA sequence.

A mutation can cause the protein to malfunction or to be missing entirely.

I hope it helps.

Sample Response:

Mutations are permanent changes in the DNA sequence of a gene. Mutations can affect the shape of the protein that is produced. A change in the shape of the protein can affect the function of the protein, which may affect the trait that is seen.

Can you list the five layers of Earth's atmosphere?

Answers

Hello!

The Answer is: The troposphere, stratosphere, mesosphere, thermosphere and exosphere.

Thank you for asking this question!

It would be greatly appreciated if you thanked me and marked me as the brainliest!

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HELP

What is a hydrogen bond?

Answers

Hydrogen bonding, interaction of a hydrogen atom located between a pair of other atoms having a high affinity for electrons; such a bond is weaker than an ionic bond or covalent bond but stronger than van der Waals forces

Answer:

A hydrogen bond is a weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other.

PLEASE HELP ASAP WILL GIVE 20 POINTS ONLY ANSWER IF YOU KNOW THE ANSWER!!!!!!
Describe some home or business technology that use spectrometric equipment to analyze atmosphere or temperature

Answers

Smart home technology is the general term given to basic home amenities that have been fitted with communication technology, enabling some degree of either automation or remote control. It includes things like Home security systems. Environmental controls, like air conditioning, heating, and lighting.
Explanation:
Environmental controls, like air conditioning, heating, and lighting.A spectrometer is a device for measuring wavelengths of light over a wide range of the electromagnetic spectrum. It is widely used for spectroscopic analysis of sample materials. The incident light from the light source can be transmitted, absorbed or reflected through the sample The solution for space exploration is through using mass spectrometers which are used to identify miniature particles present in space. Mass spectrometers are also used in radioactive and carbon dating. When used with gas chronographs, mass spectrometers detect traces of toxic particles and contaminants in air.

You have an unknown
substance in the lab. It
conducts electricity well. If
you had to make a guess
about this substance, what
would you guess about it?
A. The substance is most likely a base.
B. The substance is most likely an acid.
C. You cannot determine whether the
Substance is an acid or a base from this
information alone.

Answers

A is the correct answer


Question 3

The surroundings where a particular species lives is known as its

1.abiotic zone
2.habitat
3.community
4.biomass

Answers

Answer:

habitat

Explanation:

becous community is for people

Answer:

its habitqt

Explanation:

leqrn this in 2nd grade

The traits studied in the experiments involving the crossing of pea plants are seed shape and seed - Brainly.com
In the chart shown above,16 seeds are produced. Yellow(Y) is Dominant to Green(y) and Round(R) is Dominant to wrinkled (r). Which of the following lists the most likely distribution of phenotypes in these seeds?

A. 6 round yellow seeds : 4 round green seeds :
4 wrinkled green seeds : 2 wrinkled yellow seeds

B. 9 round yellow seeds : 3 round green seeds :
3 wrinkled yellow seeds : 1 wrinkled green seeds

C. 4 round green seeds : 4 round yellow seeds :
4 wrinkled yellow seeds : 4 wrinkled green seeds

D. 8 round yellow seeds : 2 round green seeds :
2 wrinkled yellow seeds : 4 wrinkled green seeds

Answers

Answer: B

Explanation:

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