Radio telescopes measure the galaxy’s distribution of _____.


hydrogen from which stars are formed


X-rays given off by black holes


photons from the sun


dust ejected from asteroid impacts on other planets

Answers

Answer 1

Explanation:

Hydrogen from which stars are formed


Related Questions

what scientific term is used to describe all the genes of one organism?​

Answers

Answer:

The scientific term used to describe all of the genes in an organsim is the genome.

Genome term is used to describe all the genes of one organism, it forms the genotype of an organism.

What is a genome?

the entirety of an organism's genetic makeup, or DNA. Nearly every cell in a person's body has a complete copy of its genome. Everything a person needs to grow and develop is encoded in their genome.

Each and every one of the body's cells, such as the skin cell or the liver cell, carries the following set of instructions: DNA makes up the instructions in our genome.

The genome's main job is to preserve, express, and store the genetic material that gives rise to a cell's structural and functional machinery. The genome is a significant part of the cell's structural makeup, nevertheless. Hence, the Genome term is used to describe all the genes of one organism.

Learn more about the genome, here:

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Answers

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Which is the path of sperm from the testes to the urethra?

Answers

Answer:

Sperm then travels through the deferent duct through up the spermatic cord into the pelvic cavity, over the ureter to the prostate behind the bladder. Here, the vas deferens joins with the seminal vesicle to form the ejaculatory duct, which passes through the prostate and empties into the urethra

Answer:

epididymis, vas deferens, seminal vesicles , prostate gland, urethra

Human sperm and egg cells have ____ chromosomes.
A. 42

B. 21

C. 23

Answers

Answer:

They each have 23 chromosomes

Explanation:

Answer:

C. 23

Explanation:

Human sperm and egg cells have 23 chromosomes.

de que sustancia esta lleno el cromosoma

Answers

Answer:

Los cromosomas están compuestos por dos cadenas largas de polinucleótidos asociados a proteínas histonas

Explanation:

Un cromosoma es una molécula lineal de ácido desoxirribonucleico (ADN) la cual está compuesta por dos cadenas de nucleótidos dispuestas en forma de doble-hélice. En el ADN, cada nucleótido está formado por una azúcar desoxirribosa, un grupo fosfato y un tipo de base nitrogenada (los cuatro tipos de bases nitrogenadas que forma nucleótidos en la molécula de ADN son Timina, Guanina, Citocina y Adenina). La molécula larga de ADN en doble hélice se encuentra asociada a proteínas histonas para formar las fibras de cromatina. Aproximadamente 150 pares de bases de la molécula del ADN se encuentran enrolladas con las histonas H2A, H2B, H3 y H4 (dos subunidades de cada una) para formar un nucleosoma, la unidad básica de la cromatina. Finalmente, es importante indicar que la molécula de ADN contiene regiones no codificantes y regiones codificantes, es decir, fragmentos de ADN los cuales son utilizados como templados para producir moléculas de ARN mediante un mecanismo conocido como transcripción. Los ARN mensajeros (ARNm) son un tipo especial de ARN sintetizados a partir de fragmentos codificantes de ADN conocidos como 'genes'.  Posteriormente al proceso de transcripción, estos ARN mensajeros sirven a su vez como templados para la síntesis de proteínas en los ribosomas, mediante un mecanismo conocido como 'traducción'.

What does the theory of evolution contribute to conservation biology?

A) It helps scientists understand how populations and species are related, and this knowledge can be used to help these populations and species survive.

B) It helps scientists understand how populations and species are related, and this knowledge can be used to capture and breed the fittest organisms in these populations and species.

C)It helps scientists understand how populations and species react to changes in their environment, and this knowledge can be used to help these populations and species survive.

D)It helps scientists understand how populations and species react to changes in their environment, and this knowledge can be used to capture and breed the fittest organisms in these populations and species.

I'm timed and this is my last question, please help me on this one, thank you!

Answers

Answer:

ANSWER: C

hope it helps

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The question is what 2 things are correct about the neuron when no signal is being transmitted

Answers

Answer:

A and C.

Explanation:

They are similar to the question and makes sense

]
Enzymes can speed up chemical reactions because they can absorb excess energy.
True
False

Answers

Answer:false

Explanation:

Mark Brainliest please

Answer is False

The single most important property of enzymes is the ability to increase the rate chemical reactions occurring in living organisms, a property known as catalytic activity. Enzymes speed up the rate of reactions because they lower energy required to get to the transition state of the reaction.

What is the biology behind the improvement of strength in the human body? describe

Answers

Answer:

Due to its function to fight against disease.

Explanation:

Improvement of strength in the human body is very important because strong body helps in fighting against diseases. Strong body helps in doing physical activities and also helps in protecting itself from every type of harm. Weak human body can't fight against diseases due to weak immune system so we can conclude that improvement in human body is necessary for survival, development and health of human.

1. How has freshwater been threatened around the world?
2. What are ways freshwater is becoming polluted?
3. How does polluted water affect the ecosystem? Describe all ways.
4. What are ways freshwater can be used for besides drinking?

U don’t have to answerrrr all, just help me with whatever u can !! :)

Answers

freshwater has been threatened by human beings a lot of times. humans have thrown oil or trash into freshwater.polluted water for animals could be harmful for them and also trash being thrown into freshwater could make an animal get stuck on it.

What are the two steps of protein synthesis?
A. Cellular Respiration & Photosynthesis

B. Transcription & Replication

C. Transcription & Translation

Answers

Answer:

C. Transcription & Translation

Explanation:

Answer:

A cellular respiration & replication

Explanation:

Which statement about gene expression is TRUE?
A. The gene for making hair WILL NOT BE expressed in the lining of the stomach.

B. The gene for making a bone WILL BE expressed to create your eye balls.

C. The gene for making fingernails WILL NOT BE expressed in the cells at the tips of your fingers.

Answers

Answer:

A. The gene for making hair WILL NOT BE expressed in the lining of the stomach.

Explanation:

Gene expression is the process by which the instructions in our DNA are converted into a functional product, such as a protein.

Answer:

A. The gene for making hair WILL NOT BE expressed in the lining of the stomach.

What pulls the chromosomes apart in anaphase?
A. Fishing Line

B. Life Choices

C. Scorpion's Spear (Get Over Here!)

D. Spindle Fibers

Answers

Answer:

D. Spindle Fibers

Explanation:

During anaphase, the centromeres of each chromosome split and the mitotic spindle pulls the sister chromatids apart.

Question

What pulls the chromosomes apart in anaphase?

Choices

A. Fishing Line

B. Life Choices

C. Scorpion's Spear (Get Over Here!)

D. Spindle Fibers

Answer

Among the given choices above the correct answer is D. Spindle Fibers.

Explanation

During the process of anaphase, the centromeres of each chromosomes are start to split and the mitotic spindle pulls the sister chromatids apart.

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Based on what you know about the relationship between the burning of fossil fuels (coal, oil, gasoline) and CO2, how could this also contribute to the cyclic nature of CO2 concentrations throughout the year?

Answers

Explanation:

levels of the carbon dioxide in the atmosphere rise and fall each year as plants through photosynthesis and respiration take up the gad in the spring and summer and release it in fall and winter. Now the range of that cycle is expanding as mire carbon dioxide is emitted from burning fossil fuels and other human activities

*Hope this Helps*

Elizabeth has always believed that people’s thoughts can help heal them. She wants to help people use positive thinking to positively affect their illnesses. What type of psychology would be MOST appropriate for Elizabeth to study? A. human factors psychology B. industrial psychology C. health psychology D. sports psychology

Answers

Answer:

health psychology

hope it is helpful to you

The kidneys are organs that are involved in which process in mammals?

Answers

Answer: The urinary system

Explanation:

Answer:

Kidneys regulate the osmotic pressure of a mammal's blood through extensive filtration and purification, in a process known as osmoregulation. Kidneys filter the blood; urine is the filtrate that eliminates waste from the body via the ureter into the bladder.

Explanation:

Which of the following is NOT a characteristic of life?If you explain too I give you a brainlist.
A.Made of one or more cells
B.Movement
C.Requires Energy
D.Adapts over time

Answers

B. Movement because not all living things are able to move.
I suppose it’s B, although technically all organisms have some type of physical movement, even plants. That being said the others are absolutely necessary for life so I’d imagine your teacher means walking, swimming, running, etc for movement.

The only organisms (if you call them that) that don’t have cells are viruses, which an argument still continues on whether they are alive or not.

All cellular processes require energy therefore all life requires energy.

All organisms go through adaptations given a long enough period.

Which process is similar to binary fission?Which stage of the cell cycle involves cell growth and DNA replication?

Answers

Answer:

mitosis

Explanation:

i took the test and got it right :) hope this helped

What are three real life examples of diffusion and the Cells ? ​

Answers

Answer:

living organisms

Oxygen and carbon dioxide, dissolved in water, are exchanged by diffusion in the lungs:

hope it helps

What is the name of one convection cell that forms because of the Coriolis effect? How does the air move in that convection cell?

Answers

Answer:

Hadley CellsWarming air causes it to ascend. The cool air will sink. The action eventually results in a convection cell, with air rising, traveling to the side, dropping, and returning. This heat-driven air movement circulates heat throughout the atmosphere.

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prairie dogs north america Indirect relationship (between keystone species and other organisms): Preservation Status:

Answers

Answer:

Indirect relationship.

Explanation:

There is indirect relationship between keystone species and other organisms because both species affect each other not directly but indirectly. The keystone predation was the most common of the indirect effects on other abundance of other species. The predation of keystone species decrease the population of keystone species which indirectly increases the population of competitors in that environment.

help me ls 20 points !!! i will mark brainliest just someone help me quick

Answers

Answer:

Mutations and sexual reproduction is the right answer

Hope it helps:)

Please mark me the brainliest if you won't mind:)

How does connective tissue provide support the body?

Answers

Answer:

Connective tissues perform many functions in the body, but most importantly, they support and connect other tissues; from the connective tissue sheath that surrounds muscle cells, to the tendons that attach muscles to bones, and to the skeleton that supports the positions of the body.

Explanation:

The data show that both paper grocery bags and plastic grocery bags cause harm to the environment. As a result, the scientists who study this issue are most likely to:

Answers

Answer:

carry their shopping on their head?

In fruit flies, red eye color (R) is
dominant over brown eye color(r).
What percentage of offspring would be
expected to have brown eyes if parent
one is Rr and parent two is rr?

Answers

Answer:

50%

Explanation:

What is a difference between endocrine and exocrine glands?

A.
Endocrine glands secrete hormones into the bloodstream and exocrine glands secrete products into ducts.
B.
Endocrine glands produce nutrients for cells and exocrine glands absorb minerals for cells.
C.
Endocrine glands secrete products into ducts and exocrine glands secrete hormones into the bloodstream.
D.
Endocrine glands absorb minerals for cells and exocrine glands produce nutrients for cells.

Answers

Looks like the answer is A!

Answer:

the answer is ️

endocrine gland secretion hormones

exocrine gland secretion product into ducts like sweat gland, mammary gland, salivary gland

if u had to text someone my mistake but on purpose but u say it was a mistake
what would u ask? and it would make the person who you're sending this too think that "wow u do so and so??"

Answers

Answer:

Hi friend..are we still on for tonight?

PLSSS HELP NOW plssssssssssssssssssssssss

Answers

the correct answer is the first one :)

Answer:

the hawks can hide behind the producers and catch rabbits

since they dont eat plants

I NEED HELP ASAP
click on the picture to help

Answers

Answer: 1- Central nervous system, thalamus.

2- Because the hypothalamus is part of an unit called Hypothalamus - adeno/neuro hypophysis, that unit synthesizes hormones.  

3- Through different cores like supraoptic, paraventricular, etc.

4- Specific hormones (polypeptides, proteins, derived from amino acids, steroids). Those hormones travel in arterias or veins to the diana organs.

5- pituitary gland/ hypophysis

Explanation: -

Amoebas make exact copies of themselves. Therefore, they reproduce
A. asexually buy the process of MEIOSIS

B. sexually by the process of MITOSIS

C. sexually by the process of MEIOSIS

D. asexually by the process of MITOSIS

Answers

Answer:

D

Explanation:

Asexual reproduction (requiring one parent) forms exact copies of the parent cell. The type of cell division that produces exact copies is mitosis. Therefore the answer is D.

Answer:

D. asexually by the process of Mitosis

Explanation:

Amoebas make exact copies of themselves. Therefore, they reproduce asexually by the process of Mitosis.

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