Answer:
QUESTION:
How many cells does a human body have?
ANSWER:
30 trillion
Humans are complex organisms made up of trillions of cells, each with its own structure and function. Scientists have come a long way in estimating the number of cells in the average human body. Most recent estimates put the number of cells at around 30 trillion. Written out, that's 30,000,000,000,000!
Explanation:
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Greg was growing an unusual orange daisy in his garden. He carefully saved the seeds to plant next summer. What color might he expect
the daisies from these seeds to be?
A. purple
B. red
c. orange
D.
blue
Answer: B
Explanation:
If he saved the seeds and waited till summer the rays of light would make the flower red.
*20 point* what is the average velocity of the skier in the image?
Answer: 210 meters
Explanation: 180+140+100+420=840 840/4 = 210
i think.. im sorry if im incorrect.
True or false Biodiversity has both economical and ecological value within an ecosystem.
Explanation:
biodiversity has both economic value and ecological value within an ecosystem. ... Human activities can also threaten biodiversity. These activities include habitat destruction, poaching, pollution, and the introduction of exotic species.
Que neurotransmisor afecta directamente al musculo esquelético: * Acetilcolina Triptófano Adrenalina Serotonina Endorfina
Answer:
Acetilcolina
Explanation:
La acetilcolina es un neurotransmisor excitatorio producido por neuronas del sistema nervioso periférico, es decir, células nerviosas que conectan el sistema nervioso central (SNC) con los diferentes órganos. La unión de acetilcolina a receptores específicos localizados en células del músculo esquelético conocidos como 'receptores nicotínicos' desencadena la contracción del músculo. Los receptores nicotínicos pertenecen a una superfamilia de proteínas de canales iónicos activados a través de la unión a acetilcolina, lo cual desencadena la despolarización de células musculares esqueléticas. Por otra, parte, la acetilcolina también posee un rol inhibitorio en células musculares cardíacas, donde su unión a receptores especifícos llamados 'receptores muscarínicos' disminuye la frecuencia cardíaca.
Can humans affect the carrying capacity of an ecosystem? Explain your answer
Answer:
Carrying capacity is never static. ... More rapid changes in carrying capacity may be caused by disturbances of the habitat occurring because of a fire or windstorm, or because of a human influence such as timber harvesting, pollution, or the introduction of a non-native competitor, predator, or disease.
Explanation: More rapid changes in carrying capacity may be caused by disturbances of the habitat occurring because of a fire or windstorm, or because of a human influence such as timber harvesting, pollution, or the introduction
Read this paragraph from the section "Studying Space Microbes."
A new study of the life forms, or organisms, living on the space station found that there are more types of life living there than there are in the carefully controlled rooms at the Jet Propulsion Laboratory on Earth. JPL is a government-funded space research center. The researchers also detected some tiny types of life on the station, or microbes, that could be harmful to human health.
Which word from the paragraph BEST emphasizes the scientific tone of the article?
A
organisms
B
carefully
C
government
D
detected
Answer:.
Explanation:
2. Organisms pass traits to offspring during:
a. Reproduction
b. Growth
C. Digestion
d. Excretion
Answer:
A: reproduction
Explanation:
In normal differentiated somatic cells, telomerase Group of answer choices repairs double strand breaks in DNA. adds material to the ends of chromosomes with each cell division. is not expressed and telomere tips erode with each division. removes telomere tips with each division.
Answer:
BTS DNA
Explanation:
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Which of the following occurs as a result of the coal-scrubbing process?
A) a reduction in acid rain
B) a reduction in acid-mine drainage
C) a reduction in the production of wall boards or sheetrock
D) a reduction in the production of gypsum
E) none of the above
Please select the best answer from the choices provided
Original base strand= CCGGTTAA. Write the complementary base strand:
The natural extinction of a predator can negatively affect the
Environment by leading to
-unrestricted prey species growth.
- major climate change.
-harmful human pollution.
-increased sediment deposits.
HELP
Which phase of cell division is shown?
A. prophase I of meiosis
B. telophase I
C. anaphase II
D. telophase II
Adaptation and change no links!
If a DNA strand has a nucleotide sequence of CATGAGTTA, what will the mRNA strand be after transcription?
Answer:
leave the nucleus, goe to the cytoplasm,bind to a ribosome to be read
If a DNA strand has a nucleotide sequence of CATGAGTTA, the nucleotide sequence of the mRNA after transcription will be GUACUCAAU.
TRANSCRIPTION:Transcription is the process by which mRNA molecule is synthesized from a DNA template. In the transcription process, the complementary strand of the DNA is synthesized as the mRNA strand. This means that uracil will be synthesized from adenine and cytosine from guanine and vice versa. Therefore, if a DNA strand has a nucleotide sequence of CATGAGTTA, the nucleotide sequence of the mRNA after transcription will be GUACUCAAU.Learn more about transcription at: https://brainly.com/question/15175461?referrer=searchResults
6.
Look at the diagram of the human digestive system
Which part(s) is/are responsible for most of the mechanical digestion of food?
1 only
c. 2 only
b. 1 & 2
d. 1&4
a.
Answer:
b) 1&2 ....
Explanation:
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Climate change is leading to many changes to populations around the world. Some species are now able to live in environments that were to cold before. Other species are moving to areas more like the habitat they are most suited to. When a species moves into an area it is called ____, and when it moves out of an area it is called ____.
A
immigration, emigration
B
emigration, immigration
C
migration, extinction
Which of the following are not properties of lipids?
Answer: Lipid refers to any class of organic compounds that are considered fatty acids. This also includes their derivatives that are soluble in organic solvents, like many natural oils, waxes phospholipids and steroids.
All lipids have similar properties because their molecules are made of the same elements with similar chemical structure that only varies slightly.
Foods like meat, poultry, seafood, beans, peas and eggs are all sources of proteins, while good that contains saturated fat like palm oil, coconut oil, milk, cheese and coffee creamers and butter contain lipids, that may help in storing energy.
Explanation:
Human behavior is frequently influenced by family and cultural experience resulting in habits and attitudes that began forming in infancy. Bill and his parents generally lead fairly sedentary lives often watching cartoons and playing video games. He would like to improve his health and physical condition. Which change does not represent a change toward more healthy habits?
A) Adding an afternoon walk and weekend family hikes in a nearby park.
B) Eating more fruits and vegetables and less meat, carbs, and dessert.
C) Order pizza and popcorn and watch more television as a family night.
D) Limiting screen time and reading more books and enjoy family game night.
Answer: The answer is C. Order pizza and popcorn and watch more television as a family night.
Explanation: It’s C because ordering pizza and popcorn will make your diet worse and create even worse habits.
how would you explain what activism is?
Most of the energy that heats Earth's atmosphere is
Answer: infrared radiation
Explanation:
Answer:
Most of the energy that heats Earth's atmosphere is infrared radiation
Explanation:
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how many sell membranes does a bird egg have
a bird egg has 2 cell membranes
Copper is a mineral commonly used in electronics. Copper ore deposits were created by volcanic activity. Heat and pressure creates copper ore and deposited it in sedimentary rock layers. Copper is considered a resource.
I need the answer no links and no putting random stuff I need the answer fast
Answer:Copper is a mineral commonly used in electronics. Copper ore deposits were created by volcanic activity. Heat and pressure creates copper ore and deposited it in sedimentary rock layers. Copper is considered a resource.
Explanion:
its already the answer
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Which of the following are represented by upper and lowercase letters? A. proteins B. chromosomes C. genotypes D. phenotypes
Answer:
Represented by upper and lowercase letters
(C) genotypes
The following are Represented by upper and lowercase letters are
(C) genotypes. Thus, option "C" is correct.
What is Genotype and phenotype?Genotype is the genetic makeup of an individual i.e the genes responsible for a traits or character that is expressed in an individual.
Phenotype is the physical expression of a gene. Each gene in an individual that is expressed or can be seen physically is what makes up the phenotype.
Thus, option "C" is correct.
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Microscopic organisms like ________________________ also go through natural selection and can become drug resistant.
a
fossils
b
plants
c
animals
d
bacteria
Intelligence tests are a good indicator of success in schools.
A. True
B. False
Answer:
according to me it is true
Robbie is trying to learn as much as he can about a rock that he found. This particular rock contains some fossils. What can Robbie learn from the fossils
A.
whether the rock is a compound or an element
B.
whether or not the rock can float
C.
the mass of the rock
D.
the relative age of the rock
Cuales son las características anatómicas de las fosas nasales
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What sort of fossils would be expected to be found in Antarctica from about the time of Pangaea (250 MYA)?
Answer:
Lystrosaurus as known as or translates to 'shovel reptile'.
Lystrosaurus is the only fossils of this creature have only been found in anatartica, India and south Africa.
Explanation:
Antarctica was once part of the supercontinent of Pangaea, which existed between 300 million and 200 million years ago.
What is the evidence of glaciation?During this time, Antarctica was located near the South Pole and covered in forests and swamps. Fossils of ancient plants and animals that lived during this time period would be expected to be found in Antarctica.
In particular, fossils of the Glossopteris plant, which was a dominant flora during the Permian period (299 million to 251 million years ago), are commonly found in Antarctica. Other fossils that have been found in Antarctica from this time period include those of primitive reptiles, amphibians, and some species of marine life.
In addition to fossils, evidence of glaciation is also found in Antarctica from the Permian period. This includes glacial deposits and striations on rocks, indicating that the climate in Antarctica was once much different than it is today. These fossils and geological features provide important insights into the evolution of life and climate on Earth.
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