Answer:
Las respuestas se dan a continuación.
Explicación:
1) Una búsqueda de helado y un vaso con jugo es un sistema abierto, un perro es un sistema aislado mientras que una bolsa de 1 kg de arroz sin abrir, un termómetro y una lata de guisantes es un sistema cerrado.
2) la limonada con hielo, el agua carbonatada, el agua en acetona y el café con leche son sistemas homogéneos mientras que el agua y el aceite, la tierra, la arena y las piedras son sistemas heterogéneos.
3) El recipiente de la imagen tiene agua coloreada y está tapado.
B. el sistema está cerrado.
C. El sistema es homogéneo.
D. Si enfriamos el recipiente a hielo, la masa del sistema no cambiará.
4- Se estudia la vida de los peces en una pecera que se encuentra sobre una mesa en el laboratorio.
a. El sistema es abierto y el medio ambiente es acuático.
B. Es un sistema heterogéneo.
Which of the following is a true statement? A. Both electric fields and electric forces maintain their strength at the distance increases. B. Both electric fields and electric forces increase in strength as the distance decreases. C. Electric fields don't change in strength with distance from a charge, but electric forces do. D. Electric forces stay the same as distance changes, but electric fields change.
A fossil is the hardened remains or imprint of a previously living organism.
true or false
Answer:
True
Explanation:
Fossils are preserved remains of organisms. They are preserved in two ways. They can be the actual remains of organisms.
1. How would an investigator process patent(direct) prints?
when a dead animal is burried how long does it take to decompose and form bones? please answer though its awkward me asking this and be sincere ....il give you brainliest no links please
Answer:
It takes millions of years.
Explanation:
As when a dead animal is buried it should reach sedimentary rock
what allows the blood to clot
Which is not a way to test water quality?
a. Humidity
b. pH
c. Chlorine
d. Dissolved oxygen
I don’t knowwwwwwwwwwwwwww
A condition where the blood vessels fill with plaque (fatty deposits) is called atherosclerosis whereas arteriosclerosis is when the blood vessels become rigid, less elastic. Both conditions are similar in that they both cause blood pressure to?
Answer:
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What are the 4 most abundant/ important elements for humans?
Answer:
The four most abundant elements in the human body – hydrogen, oxygen, carbon and nitrogen – account for more than 99 per cent of the atoms inside you. They are found throughout your body, mostly as water but also as components of biomolecules such as proteins, fats, DNA and carbohydrates.
According to what we know about the importance of biodiversity and ecosystem services, which of the following statements best describes how humans should interact with tropical rainforest? Select the one answer that most accurately answers the question. View Available Hint(s) Select the one answer that most accurately answers the question. Humans can clear the rain forests and rely on the future secondary growth forests while disregarding the inhabitants. Humans can clear the rain forests and rely on the future secondary growth forests, as long as they make efforts to conserve the forests’ inhabitants. Humans should leave primary growth forests and their residents intact, and ensure that secondary growth forests have a chance to regrow. Humans should leave the plants within primary growth forests intact, but can hunt the residents for fo
Answer:
The correct answer is - Humans should leave primary growth forests and their residents intact, and ensure that secondary growth forests have a chance to regrow.
Explanation:
Humans should not clear the forest at any cost as cutting the forest affect the flora and fauna of the forest and residents of the forest lose their habitat. The clearing or affecting the habitat leads to an increase in the global warming as there is increase in the carbon dioxide gas.
Humans need to intact the primary growth and flora and fauna of the ecosystem. It also need to be ensure that forests have cahnce to regrow. It should be also put in consideration that inhabitants should be protected.
Land from which water runs off into streams is known as a
1 watershed
2 divide
3 channel
Answer
The answer is watershed and that is an area that catches all the rain and snow.
Which of the following statements is true with regard to the role of plants in the field of biotechnology?
Structure of Plant and Animal cell
Answer:
Explanation:
hope it is helpful to you
How do cancer cells differ from normal cells? Select all that apply.
A
they do not stop at checkpoints
B
they condense their DNA into chromosomes for cell division
C
they have uncontrolled growth
D
they go through the S phase
Answer: A and B
Explanation:
Cancers cells differ from normal cells because they do not stop at checkpoints and they have uncontrolled growth. So, options A and C are correct.
What do you mean by Cancerous cells?Cancerous cells may be defined as an abnormal cell that doesn't follow the regulations of the cell cycle. They get multiply at a rapid speed.
Normal cells follow a typical cell cycle. They grow, divide and finally die. But cancer cells do not follow the cell cycle, they do not undergo apoptosis, and they continuously multiply at a rapid pace.
Therefore, Cancers cells differ from normal cells because they do not stop at checkpoints and they have uncontrolled growth.
To learn more about Cancerous cells, refer to the link:
https://brainly.com/question/373177
RNA interference is a mechanism of eukaryotic gene regulation. In this mechanism, the enzyme "dicer" cuts dsRNA into smaller fragments called , which form a complex with RISC and degrade specific .
RNA interference is a mechanism of eukaryotic gene regulation. In this mechanism, the enzyme “dicer” cuts dsRNA into smaller fragments called siRNA, which form a complex with RISC and degrade specific RNA.
siRNA or small interfering RNA as a part of RISC complex finds and binds to complementary mRNA and it induces the cleavage of mRNA. This causes degradation of that mRNA. This is the way RNA interference prevents translation.
Answer:
RNA interference is a mechanism of eukaryotic gene regulation. In this mechanism, the enzyme "dicer" cuts dsRNA into smaller fragments called ( small interfering RNA (siRNA) ) which form a complex with RISC and degrade specific ( mRNA)
Explanation:
:)
Think back to Biology class. Using the phenotypes and genotypes above, create a Punnett
square that shows the possible offspring from a blood type "O" parent and a blood type
"AB" parent.
What are the probable ratios of the phenotypes and genotypes of the kids?
Answer: 50% Ao, 50% Bo
neverminddddddddddddddddddddddddddddddddd
Answer: DUDEEEEEEEEEEEE
Explanation: Dude.. dude.. dude... dude....
Which example is classified as a body fossil?
Answer:
The fossils of bones, teeth, and shells are called body fossils.
Explanation:
ANSWER PLS DONT PUT LINKS
Answer: C!! :)
Explanation:
Question 8 (2 points)
Which of the following terms identifies all of the interactions between living and
nonliving things within an area?
1.) ecosystem
2.) food web
3.) energy pyramid
4.) food chain
The above graph shows vertebrate diversity in terms of total
number of species. Which of the vertebrate classes listed in
the graph would have the BEST chance of at least some of
the species surviving a major environmental change?
A:bony fish
B:birds
C:sharks, rays
D: mammals
Answer: a
Explanation:
Answer:
a
Explanation:
You are exposed to the same pathogen twice in your lifetime. Which of the following
is true?
A.) Your body will fight the second exposure much slower because it has already
used up all its antibodies against that antigen.
B.) The reaction times will be almost equal.
C.) You cannot be exposed to the same pathogen twice in your life because you
already destroyed those pathogens with your Killer T cells.
D.) Your body will fight the second exposure much quicker because it has stored
memory cells against that specific antigen.
Answer:
the answer would be D
Explanation:
Answer:
d
Explanation:
Do plants produce more oxygen than they need?
Answer:
Photosynthesis uses carbon dioxide to make sugar and produces oxygen as a byproduct. Respiration uses oxygen to release energy from stored sugar and produces carbon dioxide as a byproduct. ... However, if the plants are growing, then over a period of 24 hours they will produce more oxygen than they consume.
PLEASE HELP ME GUYS !
What line up during mitosis metaphase at the metaphase plate?
a) Homologous chromosomes
Ob) Sister chromatids
c) Aster
d) Microtubes
Answer:
a) During metaphase, each of the 46 chromosomes line up along the center of the cell at the metaphase plate.
Which of the following describes a complete nucleotide
Answer:
Explanation:
A nucleotide is an organic molecule that is the building block of DNA and RNA. They also have functions related to cell signaling, metabolism, and enzyme reactions.
A scientist wants to observe the structure that joins a cell of a neighboring cells. How should the scientist observe the detailed structure of the cell?
Answer:
The images obtained from the electron microscope provides key knowledge regarding the structural basis of cell function and various diseases associated with the cells. Thus, if a scientist desires to see the structure, which binds a cell with the adjacent cells, he or she should use an electron microscope.
Explanation:
please mark this answer as brainliest
Question 3: Explain how you and your classmates are all the same at the DNA level and
what makes you look different.
Answer:
All human beings are 99.9 percent identical in their genetic makeup. Differences in the remaining 0.1 percent hold important clues about the causes of diseases
Explanation:
Which two inferences about the chipmunk population can be supported with the data gathered by the biologist?
Answer:
The amount of food in the area decreased, causing more chipmunks to
survive to reproductive age.
Explanation:
Hope this helps :)
Chipmunks in later generations showed greater genetic diversity than previous generations, allowing for a greater survival rate in later generations. Individual chipmunks changed their genetic makeup and became more successful in the environment. The correct options are R and S.
What is genetic diversity?Genetic diversity refers to the total number of genetic traits that make up a species' genetic composition.
It varies greatly depending on the number of species present as well as across species, and it can be linked to a species' longevity.
DNA contains all the biological information and variety required to sustain life on our planet.
Genetic variety is referred to as this. It improves a species' and population's resistance to maladies, pests, climatic changes, and other pressures.
According to the findings, Chipmunks had a higher genetic variety in later generations than in earlier generations, which allowed for a higher survival rate in later generations. Individual chipmunks altered their genetic make-up and improved their chances of survival.
Thus, the correct options are R and S.
For more details regarding genetic diversity, visit:
https://brainly.com/question/14696671
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Your question seems incomplete, the probable complete question is:
A biologist studies a population of chipmunks. Some of the biologist’s
findings are shown.
Years 1 – 20:
• The population remains below
125.
• Less than half of newborn
chipmunks survive to adulthood.
• Competition for food and
resources limits population
growth.
Year 21 and beyond:
• Ninety percent of newborn
chipmunks survive to adulthood.
• The population increases to over
200 chipmunks.
M. The amount of food in the area decreased, causing more chipmunks to
survive to reproductive age.
P. Chipmunks in later generations showed greater genetic diversity than
previous generations, allowing for a greater survival rate in later generations.
R. Chipmunks migrated from one country to another country to increase the
number of chipmunks in the studied area.
S. Individual chipmunks changed their genetic makeup and became more
successful in the environment.
T. The number of predators in the area decreased, so more chipmunks were
able to survive.
What does coal do to the environment
Answer:
the burning of fossil fuels releases greenhouse gases into the atmosphere, increasing levels of CO2 and other gasses, trapping heat, and contributing to global climate change. Coal combustion releases the greenhouse gases carbon dioxide (CO2) and nitrous oxide (N2O) during combustion.Explanation:
Answer: Burning fuel releases CO2 into the atmosphere these gasses are called greenhouse gasses. When enough of these gasses accumulate in the sky the earth's natural temperature increases.
A group of scientists are studying the genome of the Drosophila Fly. In these flies, the allele for long wings is dominant over the allele for short wings. What phenotype would a heterozygous genotype have?
Answer:
Long wings dominant = LL
Short wings recessive = ss
Heterozygous= Ls
Explanation:
That what I was able to get with the information provided hope it helps.
what are two examples of specialized cells?
Answer: Neurons and Red Blood Cells
Explanation: I hope this helps and may God bless you. Have a nice day, bye! :)