Answer:
The correct answer would be -
a. observation
b. observation
c. invalid
d. observation
e. reasoning
Explanation:
Any observation or statement form or generated by the understanding and nothing any event. The first statement is formed by observing the sun and the rest of the solar system and comparing its mass. The second and fourth statement is also observations made on fact or noticing the.
The fifth statement is reasoning as it deriving something from logic and fact. The third statement is invalid as the universe made before the sun.
I need help with this (last question I had had the picture all black)
Answer:
I only know A
I think it's the lap
What larger part of the body do cells make up?
Answer:
i pretty sure it ovum :)
Explanation:
What happens inside your body as you an oral report in front of your class? URGENT I need it quick, I will give brainliest!
Answer:
If you get nervous (which could happen alot) it feels like your body temperature is rising but really its not , and your face starts to turn red. And when you do an oral report you use your brain to read off the work and to show your knowledge.
Explanation:
What happens during stage mitosis cell cycle
Answer:
Mitosis is the process in which the nucleus of a eukaryotic cell divides. During this process, sister chromatids separate from each other and move to opposite poles of the cell. This happens in four phases, called prophase, metaphase, anaphase, and telophase.
Explanation:
Insecticides can pollute the topsoil.
True or false ?
Answer:
True
Explanation:
Some insecticides when applied may persist for longer periods and that is very harmful because the soil is degraded and living organisms in the soil may be harmed leading to soil erosion. Then the soil will lose its fertility.
What is the role of mRNA in the process of protein synthesis?
Explanation:
Messenger RNA (mRNA) molecules carry the coding sequences for protein synthesis and are called transcripts; ribosomal RNA (rRNA) molecules form the core of a cell's ribosomes (the structures in which protein synthesis takes place); and transfer RNA (tRNA) molecules carry amino acids to the ribosomes during protein ...
4) After a horrible car wreck, Jamie had a broken ankle, a few minor cuts, scratches, and a
large bruise across her chest from the seatbelt. While at the hospital, they kept checking her left
lung because it kept collapsing.
What systems are affected?
Why?
What types of cells have cell walls ?
The type of cell that possess cell wall is plant cell. The correct option is A.
What is cell wall?A cell wall is a structural layer located just exterior the cell membrane that surrounds certain types of cells.
It can be tough, flexible, along with being rigid at times. It basically aids structural support as well as protection to the cell, as well as acting as a filtering mechanism.
The cell wall is made up of a network of cellulose microfibrils and cross-linking glycans embedded in a matrix of pectin polysaccharides that is highly cross-linked. Lignin can be found in secondary cell walls.
Plant cell walls, as the interface between adjacent cells, frequently play important roles in intercellular communication.
Plant cell walls play an important role in plant-microbe interactions, including defense responses against potential pathogens, due to their surface location.
Thus, the correct option is A.
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Your question seems incomplete, the missing options are:
Plant cell.Muscle cells.Blood cells.Animal cells.Please help I'm behind
Answer:
The first answer is rainfall, and the second answer is the last one
Explanation:
1.
Rainfall is measured with a rain gauge in inches/millimeters - Most modern rain gauges generally measure the precipitation in millimetres in height collected on each square meter during a certain period, equivalent to litres per square metre. Previously rain was recorded as inches or points, where one point is equal to 0.254 mm or 0.01 of an inch.
2.
Climate is the weather conditions prevailing in an area in general or over a long period. The other 3 describe the weather conditions in a place for just a week, or day while climate is measured annually (basically over a long time)
Good luck with the rest of your exam, I hope you catch up with all your work and do well :)
List 3 organisms that are made of plant cells:
Answer:
Seed Plants
Ferns
Mosses
Thallophytes
Explanation:
which is more specific chordata or Eukarya
MULTIPLE CHOICE QUESTION
Why do scientists think that cuttlefish
have the biggest brain to body ratio of all
invertebrates (animals without a spine)?
Answer:
Due to its high intelligence.
Explanation:
Scientists think that cuttlefish have the biggest brain to body ratio of all invertebrates that allows it to sense sight, smell, and sound that comes to it in the form of pressure waves. Due to this big brain, cuttlefish are very intelligent so due to its intelligence the scientists thinks that cuttlefish has the biggest brain as compared to other big vertebrates such as octopus.
students observed several prepared slides of a process that occurs in a dividing onion cell. they observed haploid cells in one slide, centromeres that did not separate during anaphase in another slide, and two different cell divisions resulting in 4 daughter cells in other slides. Which statement is not true about the process that was observed?
1.) the slides were of an egg cell or sperm cell
2.) the process observed produce genetically different cells
3.) the number of chromosomes resulting from the process is reduced by half
4.) the observations suggest cellular reproduction and general growth and repair of the body.
Answer: pretty sure it could be “B”.
Explanation:
Meiosis produces 4 haploid cells -gametes- from a single diploid cell. The statement that is not true is 4). the observations suggest cellular reproduction and general growth and repair of the body.
Observed prepared slides:
haploid cells in one slide.centromeres that did not separate during anaphase in another slide.cell divisions resulting in 4 daughter cells in other slides.
According to this information, we can assume that the students are observing the occurrence of meiosis events.
MeiosisThrough Meiosis, a diploid cell (2n) produces four haploid daughter cells (n). Thes haploid cells are the gametes.
After DNA replication there are two meiotic phases.
The first one is a reductive phase, in which homologous chromosomes separate. In the second phase, the cell suffers a new, not reductive division.1. In the first phase, Meiosis I:
Prophase I: Chromosomes condensate and become visible. Occurs crossing-over between homologous chromosomes. Crossin-over makes the daughter cells to be genetically different from the original one. Metaphase I: Homologous chromosomes randomly align in the equatorial plane. Anaphase I: In this phase occurs the division and independent separation of homologous pairs. Each chromosome migrates to different poles. This separation generates different chromosomal combinations in the daughter cells. Telophase I: Chromosomes of homologous pairs are already in the corresponding poles, and the nuclear membrane forms again in each pole. Cytokinesis occurs.2. In the second phase, Meiosis II:
Prophase II: Chromosomes condensate again and become visible. Metaphase II: Chromosomes join the spindle apparatus and migrate to the equatorial plane, where they randomly line up. Sister chromatids are holden together until they reach the Anaphase. Anaphase II: Centromeres divide, chromatids get separated, and each of them goes forward an opposite cellular pole. Telophase II: Once in the poles, the chromosomes become lax again, and the nuclear membrane forms again. Cytokinesis occurs. Options1.) the slides were of an egg cell or sperm cell ⇒ Correct. It makes reference to gametes -haploid cells-.
2.) the process observed produce genetically different cells ⇒ Correct. After crossing over and independent segregation of chromosomes.
3.) the number of chromosomes resulting from the process is reduced by half ⇒ Correct. After the reductive phase.
4.) the observations suggest cellular reproduction and general growth and repair of the body. ⇒ INCORRECT. Mitosis is in charge of general growth and repair of the body, not meiosis.
You will learn more about meiosis at
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In the African savanna, more wildebeests are born than the environment can support. Which is most likely to happen over a period of years as a result?
The chances for survival of the population are reduced.
New food sources are discovered and become the regular diet.
Individuals that are well suited to the environment reproduce, and those that are not well suited die before they reproduce.
The environment adapts by providing more resources to the growing population, increasing the chances of survival for individuals within the habitat.
Answer: I think the correct answer from the choices listed above is option C. Over a period of years, most likely, individuals that are well suited to the environment reproduce, and those that have lesser adaptations die before they reproduce. Hope this answers the question.
Explanation:
Plz help. WIll give brainliest.
Which describes a difference between a positive and a negative feedback loop?
a.) The output of a system signals the system to disregard the stimulus only in a negative feedback loop.
b.) The output of a system stimulates another cycle of the system only in a positive feedback loop.
c.) The output of a system maintains conditions around a set point only in a positive feedback loop.
d.) The output of a system keeps conditions within the body absolutely constant only in a negative feedback loop.
please help with this question
Answer:
C
Explanation:
the answer is C bc I read this and u can site it in the text
In what ways is the composition of the sun different from the Earth? Choose all that apply.
The Sun does not have continents.
O The Sun has a thick, solid core.
O The Sun does not have a solid surface
The Sun does not have a solid core.
The Sun has continents known as plasma zones.
Answer:
1,3,4
that's my answerrrr
As scientists advise about potential risks due to climate change, many coastal areas are preparing for a higher risk of impact Predict
which of these has a greater impact on human health in coastal areas due to climate change.
Since the coast water is rising,it would be hard to find fresh water. The people would not be able to use the water,because it would be contaminated with bacteria. If all of the ice does melt,most of the fresh water will turn to salt water,and we would have to adapt to a new way of life. People would have to live on higher land,there would be no one to grow crops,and their would be no way that trees would survive,meaning we would not be able to breathe.The worst part of this all is that the Earth's temperature will sky rocket,and it will be so hot,the Earth will kinda be like a huge hurricane.(lol)
Hope this helped and good luck!
-Nea
Answer:
C. Increased severity of tropical storms
Explanation:
Due to increased water temp and increased evaporation
Why are matter and energy cycles important to an ecosystem ?
Answer:
Carbon and nitrogen are examples of nutrients. Unlike energy, matter is recycled in ecosystems. ... Decomposers release nutrients when they break down dead organisms. The nutrients are taken up by plants through their roots
Explanation:
True or False: When it rains in NYC, the rainwater causes the sewer system to overflow and the excess rainwater is mixed with raw sewage and released into an NYC waterway, such as the Coney Island Creek, Gowanus Canal, and Jamaica Bay.
(This is 7th grade science)
Answer which middle school
u go to
Explanation: i go to ms.88
Explain the production of urine, include the processes of Ultra filtration and selective reabsorption.
Answer:
Urine Is 95% Water
Explanation:
The Glomerulus Filters Water and Other Substances from the Bloodstream
The Filtration Membrane Keeps Blood Cells and Large Proteins in the Bloodstream
Reabsorption Moves Nutrients and Water Back into the Bloodstream
. Waste Ions and Hydrogen Ions Secreted from the Blood Complete the Formation of Urine
7th Grade Science Yes i will brain list
What is a convection current?
a current in a fluid that results from convection.
Is sand called sand because its in between the sea and the land?
I'm asking the questions that need to be asked people! :'D
No, not at all. ... The English word 'sand' comes from Old Dutch/proto-German 'zand', which has nothing to do with either sea OR land, but referred originally to unstable ground, as near rivers.
I hate the English language sometimes, like: "waterfall". But anyways, I hope this helps ^^
Hmmm... I've never thought of that before... nice catch lol
Have a great day :D
please answer this!!
Answer:
mouth coughing out biok sid carbon
Bacteria reproduce in a process called binary fission which of the following is true about binary fission?
Convection occurs because heated material becomes ____________________. A less dense and rises B denser and rises C denser and sinks D less dense and sinks
Answer: A less dense and rises
Explanation:
Convection is a type of heat transfer happens when there is a movement of fluid (liquid or gas) in which convection currents are produced due to the movement of hot fluid upwards and cold fluid downwards. This happens as the density of hot fluid decreases due to presence of less number of mmolecules per unit volume. As the hot liquid becomes less dense, it starts moving upwards.
Thus convection occurs because heated material becomes less dense and rises.
What is Pedigree?? Can someone help me i need this answer plzzzzzz
Answer:
A pedigree is like a lineage or a recorded ancestry. For example, if a dog has recorded breeding papers it would show you it's pedigree. I hope that helped! :)
11. Cheetahs have been through a genetic bottleneck; evidence for this is that
A little natural selection occurs in this species.
B. the body is long thin, and graceful.
c. there is very little genetic variability.
D. these cats are members of an endangered species.
E. they originally came from sm all areas of Africa.
Cheetahs have been through a genetic bottleneck; evidence for this is that there is very little genetic variability (Option c).
What is a genetic bottleneck?A genetic bottleneck is a natural process where a population and/or species lost part of this genetic diversity.
A genetic bottleneck is a process that can be caused by catastrophic natural disasters.The genetic bottleneck is evidenced by the lack of genetic variability.In conclusion, cheetahs have been through a genetic bottleneck; evidence for this is that there is very little genetic variability (Option c).
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Mitosis is responsible for growth, repair, and maintenance in an organism because
a. it occurs at a faster rate than meiosis.
b. the chromosome number is reduced by half.
c. exact duplicates of each mother cell are produced.
d. it is the only process that involves replication of genetic material.
Answer:
The correct answer is c
Explanation:
USA test prep
Explain the idea of "survival of the fittest" with regards to a population of beavers in a lake in which some have large incisor teeth and others have small incisor teeth.
The study of gradual change is called evolution.
The correct answer is mentioned below.
What is evolution?Evolution is a change in the heritable characteristics of biological populations over successive generations. These characteristics are the expressions of genes that are passed on from parent to offspring during reproduction.According to the question,
If the beavers need large teeth to collect wood for their dams, the population of beavers with larger teeth will live longer because they can collect wood. They will then be able to reproduce therefore passing down the gene with larger incisor teeth.
For more information about the genes, refer to the link:-
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