Where does a clinical trial usually take place?
O A. In a hospital
B. In a test tube
c. In a placebo
D. In a petri dish

Answers

Answer 1
The answer is a. In a hospital.

Related Questions

What happens in the gray zone between solid and liquid? Can we find a unified theory of physics?

Answers

The change of grey zone is very crucial which includes the inter molecular force perfroms on the molecules and each atoms which makes the change of condition from hot to cold and cold to hot.

what is osmosis ANSWER FAST

Answers

In biology, osmosis is the movement of water molecules from a solution with a high concentration of water molecules to a solution with a lower concentration of water molecules, through a cell’s partially permeable membrane.

ill give brainly pls help

Answers

Explanation:

C: x25 for sure for sure...

need this please thanks

Answers

Answer:

Sequence C‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎‏‏‎ ‎

The wing of a bee and the wing of a bird are considered to be - A B s C D

A.) Vestigial structures
B.) Homologous structure
C.) Analogous structures
D.) Evolutionary structures

Answers

Answer:

c.) analogous structures

Explanation:

A bee's wing shape is similar to bird wings but has an entirely different structure to it, this makes it analogous.

In the investigation of oxygen dynamics in E. chlorotica cultures,
gross photosynthesis is reported after seven months in culture, even
in the apparent absence of oxygen production.
Which statement provides the best reasoning to explain this
observation?
A. The oxygen produced in photosynthesis is used in cellular respiration.
B. Photosynthesis can be sustained in the absence of oxygen production.
C. The plastids store oxygen for use in photosynthesis.
D. The ability to carry out photosynthesis is transferred from the
chloroplast to the mitochondria.

Answers

Answer:A

Explanation: Teacher gave me the answer

A cold, dry air mass collides with a warm, humid air mass over the land. The warm air mass is forced upward quickly. As the air rises, it cools and condenses. What type of weather phenomena is forming?
A.
a hurricane
B.
a tsunami
C.
a thunderstorm
D.
a flood

Answers

The correct answer is C

Desmond is wearing a purple shirt to school. Which colors are being absorbed by the shirt to make it look purple? A purple, blue, yellow, red, and green B red, orange, yellow, green, and blue C blue, purple, red, green, and orange D orange, yellow, blue, purple, and green

Answers

Red, orange, yellow green and blue

Cystic fibrosis is a genetic disorder. It is a recessive trait that is determined by two alleles. Suppose two parents each carry at least one recessive allele, but neither of them has cystic fibrosis. Which statement reflects the likelihood of a child of these parents having cystic fibrosis?
The child cannot have the disease because only the dominant alleles will be passed on.
The child will have the disease because only recessive alleles will be passed on.
The child may or may not have the disease because a recessive gene from each parent may be passed on.
The child may or may not have the disease because the disease does not depend on the alleles of the parents.

Answers

Answer: its C, The child may or may not have the disease because a recessive gene from each parent may be passed on.

Explanation: good luck

A human disease termed cardioencephalomyopathy results from a genetic change in the normal function of mitochondria. Babies who are born with the disease generally die from it. Scientists who study this disease using a bacterium known as Paracoccus denitrificans. Scientists were able to produce the same change in the bacterium’s genes that they found in the mitochondria of their human patients.


What is the BEST explanation for why scientists can use a bacterium to study this human disease?

A
Bacterial genes are very similar in structure to human genes.
B
Bacteria can be used as a model to study more complex cells.
C
The genes and chemical pathways found in bacteria are similar to those in human mitochondria.
D
The eukaryotic cells of humans share many characteristics with bacterial cells, including single stranded DNA.

Answers

i have no idea
but it’s definitely d

The eukaryotic cells of humans share many characteristics with bacterial cells, including single stranded DNA. Thus option D  is correct.

what is the structure of DNA ?

DNA is referred as deoxy ribo nucleic acid, which is a nucleic acid, with a left handed double helical structure, are the basic unit of every living cell

It carry all genetic material responsible for expression of a character of an living organism; It is made up of nitrogenous base, sugar mainly pentose sugar and phosphate.

Nitrogenous base are purine and pyrimidine such as adenine, guanine, thiamine, cytosine; Adenine can pair with thiamine by two hydrogen bond where as cytosine can pair with guanine by three hydrogen bond.

For more details regarding DNA, visit

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Use the same article to answer the following questions. Muscle Contraction What happens if there is not enough ATP available?

Answers

If there is not enough of ATP molecules available then, there is no muscle contraction.

What is Muscle contraction?

Adenosine triphosphate (ATP) is a way to store and also uses this energy in the breaking down the complex compounds which are present in the food that we eat. If there is not enough amount of ATP present, then this could lead to a lesser oxygen available in the cell on the food being eaten. Hence, this will affect the energy that we can get from a certain type of food particles.

Muscle contraction is the process of tightening, shortening, or lengthening of the muscles when a person do some type of activity. Muscle contraction can happen when a person can hold or pick up something, or when a person can stretch or exercise with weights.

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Given RRYY x Rryy, what will the parents be? Help (real answers only please)

Answers

do you mean what will the kid be

Which Asexual reproductive strategy involves dividing in two and regrowing into a separate organism
A. Budding
B. Parthenogenesis
C. Fragmentation
D. None of the above​

Answers

D i think.. i hope you do good!!

Answer

d

Explanation:

i think its binary fission

which of the following is not a virus?

Answers

Answer:

the answer is letter A

Explanation:

I hope this answer has helped you

An organism's phenotype depends on what?
A. Father's DNA
B. Genotype
C. Environmental factors
D. Genotype and Environmental factors

Answers

the answer would be A

PLEASE HELP! i inserted a pic will give brainliest if right

Answers

Did you try looking the answer up?
I believe the answer is motion.

I need an answer for Question 4 please:)

Answers

Answer:

c

Explanation:

mRNA is basically the same except it has U instead of T

Answer:

option C is correct answer

hope it helps

In the wild, are all organisms likely to survive?________

Answers

Answer:Natural selection,

Explanation:

Answer: No, organisms eat other organisms whether they are big or small. Also as the person above said Natural selection, some animals will live and other will die because of their traits and how they where built.

Hope this helps

Three of these could be grouped into a similar category. Which one does not belong. Explain why? brain, liver, skin, and femur

Answers

femur cause the rest are all organs.

Which statement is true about gravitational forces?
A.
Every mass exerts a gravitational force on every other mass.
B.
Only masses of equal size exert a gravitational force on each other.
C.
Only moving masses exert a gravitational force on stationary masses.
D.
Only large masses exert a gravitational force on small masses.

Answers

A) Every mass exerts a gravitational force on every other mass :)))

Couples who both have normal colour vision and have a child with colour blindness. Explain how this may happen, and state that the sex of the colour blind child must be.​
Please help me

Answers

Answer:

Im not sure what state but that is my reason

Explanation:

Maybe it has to do something with there gens or someone eles in there family ahd it and maybe it just got passed down to the baby instead of the parents i hate to say this but sometimes that happens.

what consists of 2 protons and neutrons and is positively charged

Answers

Hello my name is Tobie and I will be more than glad to help!

your answer should be alpha particle

consisting of two protons and two neutrons emitted by radioactive materials we get what is called a  alpha particle

they are usually formed when identical to the nucleus of the helium-4 atom are emitted by radioactive matter !

What can they do to the body?

Since they have radioactive material in them they are very DANGEROUS! If they are inhaled swallowed or somehow get inside our bodies it can cause serious harm!They can harm sensitive living tissue and can go as far as to causing cancer !

What is their electric charge?

+2 e

What is their symbol ?

α, α2+, He2+

Hope this helps!

                                                                                            -Tobie The dog <3

Answer:

Alpha particle

Explanation:

A positively charged particle made up of two protons and two neutrons and released by a radioactive nucleus is the alpha particle.

A “flight or fight” response occurs when the body perceives a type of threat. The hormone known as adrenaline is released which will affect a variety of body systems. Which system needs to increase its activity in order for the muscular system to respond to the perceived threat?

A)Endocrine
B)Integumentary
C)Excretory
D)Digestive

Answers

Answer:

It is the Endocrine System.

Explanation:

The Endocrine System controls and regulates almost all the hormones in your body.

Integumentary System = Skin Tissues

Excretory System = Release of Waste out of the Body

Digestive System = Breakdown of Food

The career of Jacques Cousteau illustrates that

values can shift over the course of a career

focusing on a single task is the best strategy for change

only highly educated people can raise environmental awareness

publicity plays an insignificant role in advancing a scientist's causes

Needdd helllppp

Answers

Answer:

focusing on a single task is the best strategy for change

Explanation:

The career of Jacques Cousteau illustrates that focusing on a single task in life is the best strategy for the change in the social life of an individual as well as in the society. If a person performs many activities at the same time so its focus and concentration divides over the activities which is not more advantageous as compared to that person who focus on the single task until it is completed so focus on the single task in life is necessary for producing big change in life and in the society.

factors influencing soil formation​

Answers

Answer:

Soil Forming Factors

Parent material. Few soils weather directly from the underlying rocks. ...

Climate. Soils vary, depending on the climate. ...

Topography. Slope and aspect affect the moisture and temperature of soil. ...

Biological factors. Plants, animals, micro-organisms, and humans affect soil formation. ...

Time.

Explanation:


Select the correct answer.
Which part of the brain controls functions such as eye movement, body movement, and vision?
Α.brainstem
B.forebrain
C.midbrain
D.hindbrain

Answers

Answer:

Pons. A deep part of the brain, located in the brainstem, the pons contains many of the control areas for eye and face movements.

Explanation:

please give me brainlist and follow

Answer: C (Midbrain)

source: trust me bro

Which statement describes landforms

Answers

You didn’t post answers
No statements but a landform is a natural or artificial feature of the solid surface of the Earth or other planetary body. Landforms together make up a given terrain, and their arrangement in the landscape is known as topography.

Where do living things get their traits?

Answers

Answer:

genes containing dna.

Explanation:

during reproduction genes containing dna, are passed along to an organisms offspring. these genes ensure that the offspring will belong to the same species.

Analyze
1. What are the biotic and abiotic factors the scientists monitor which influence this
bat population?

Answers

Answer : Abiotic factors refer to non-living physical and chemical elements in the ecosystem. ... Biotic factors are living or once-living organisms in the ecosystem. These are obtained from the biosphere and are capable of reproduction. Examples of biotic factors are animals, birds, plants, fungi, and other similar organisms.

Some desert plants respond to darkness by opening their flowers at night to lure in pollinators. In
this situation, a plant's response system is working in conjunction with the —
immune system.
vascular system.
reproductive system.
root system.

Answers

Answer:

B

Explanation:

In this situation, a plant's response system is working in conjunction with the vascular system. Therefore, option B is correct.

What is a vascular system?

The complex network of conducting tissues known as the plant vascular system connects all organs and carries water, nutrients, organic compounds, and different signaling molecules throughout the body of the plant. The primary transport systems of plants, xylem and phloem, make up vascular tissue. They often coexist in vascular bundles that cross the roots, stems, and leaves of all plant organs. Water and dissolved ions are moved upward through the plant through the xylem, starting at the roots.

Clubmosses, horsetails, ferns, gymnosperms (including conifers), and angiosperms are examples of vascular plants (flowering plants). The group is known by its scientific names, Tracheophyta, and Tracheobionta.

Some desert plants respond to darkness by opening their flowers at night to lure in pollinators. In this situation, a plant's response system is working in conjunction with the vascular system. Therefore, option B is correct.

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