Answer:
They both had a tail as an embryo.
Explanation:
Both human and dogs have tail as an embryo. Temporary tail-like structures are present in the human embryo. These tail like structure develop around the fifth or sixth week of gestation, having about 10 to 12 vertebrae and removed when it reached to its full development stage while on the other hand, tail present in dog's embryo also developed with time and we can see when the dog baby is fully formed.
Answer:
They both had a tail as an embryo.
Their arm and leg structure is similar but may have a different function.
Explanation:
They both had a tail as an embryo.Vestigial structures are those body parts that have lost or reduced their original function during the evolution of a species. These vestigial structures might be found in many animals, including human beings. Vestigial structures were plenty functional for common ancestors. But with evolution, they degenerated, stunted, and became rudimentary for some of the new species.
During the first 4 months of embryogenesis, all mammals have a tail at some point in their development. Dogs develop this structure and keep it during their whole lives, but humans lose it with time during embryogenesis. The tail disappears, and its forming vertebras get fussed with each other composing the coccyx, which represents a vestigial structure. This tailbone is the remnant of a missing tail.
In many animals, the function of the tail is to stabilize, equilibrate and mobilize. But in humans, the coccyx, located at the end of the vertebral column, has lost this original function.
Their arm and leg structure is similar but may have a different function.The fact that whales, humans, and dogs all have the same bones in the same order, but they matured differently in later embryological development, is an example of homologous characters.
Homologous characters have the same fundamental structures. They also share the same relations with adjacent structures, and they have the same embryological development.
These structures might show variations between organisms exhibiting them, according to their function and to the environment in which the organism lives.
These homologous characters are common in organisms related and that share a common ancestor.
Please show/demonstrate any INTERACTION between two blotic factors or between a biotic and abiotic factor. Don't forget to explain if the parts are biotic and/or abiotic and make sure there's some kind of ACTION going on (Ecology).
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.
For more details regarding cell wall, visit:
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Your question seems incomplete, the missing options are:
Plant cell.Muscle cells.Blood cells.Animal cells.please answer this!!
Answer:
mouth coughing out biok sid carbon
Jimmy and Marquis are conducting an experiment in class. They have
planted four seeds in four different pots. They placed the pots in different
places around the classroom: in a sunny window, on the work table, on the
floor near the window, and under the boys' desk. The boys watered the
pots every morning when they arrived at school. Once the seeds sprouted
the boys measured how much each seed grew. "Wowl" said Marquis, after
3 weeks of observing and measuring, "I can tell which seed was under our
desk!" Can you? Which seed was placed under the boys desk?
Measuring Plant Height
10
Plant Height (Inches)
Seed 1 Seed 2 Seed 3 Seed 4
In general, which of the following statements about metals is true? *
Metals need to be stored in sealed containers for safety.
Metals show a wide range of chemical properties.
Metals are highly reactive substances.
Metals do not react with oxygen.
Answer:
I think Metals show a wide range of chemical properties
Explanation:
I think Because Metals are found on the underground.
Answer:
Metals show a wide range of chemical properties.
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:
Which statements about freshwater sources are true? Check all that apply. B Only about 3 percent of Earth's water is fresh water Most of the fresh water on Earth is groundwater. About 75 percent of the fresh water on Earth is frozen in ice sheets. The largest source of usable fresh water is groundwater. More fresh water is in the atmosphere than in rivers and lakes.
Answer:
all but 3 percent
Explanation:
because i looked it up
Answer:
groundwater is correct
What larger part of the body do cells make up?
Answer:
i pretty sure it ovum :)
Explanation:
Which statement accurately describes runners?
A runner is a small underground stem that sprouts new buds.
A runner is a series of underground leaves that contain stored food.
A runner is a horizontal stem that grows along the ground.
A runner is a horizontal stem that grows underground.
Answer:
C✌
A runner is a small underground stem that sprouts new buds.
A runner is a series of underground leaves that contain stored food.
A runner is a horizontal stem that grows along the ground.<--THIS ONE
A runner is a horizontal stem that grows underground.
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
16. In which of the following situations are the phenotypes of F2 offspring expected to follow
the ratio of 9:3:3:1?
a. monohybrid cross for two unlinked traits
b. a monohybrid cross for two closely linked traits
c. a dihybrid cross for two unlinked traits
d. a dihybrid cross for two closely linked traits
Answer:
C
Explanation:
The F2 offspring of a cross would follow the ratio of 9:3:3:1 only if the cross is a dihybrid for two unlinked traits.
There is nothing like a monohybrid cross for two traits. A cross involving two traits is a dihybrid cross. Hence, options a and b are out of the equation.
A dihybrid cross for two closely linked traits would produce F2 offspring in another ratio that is different from 9:3:3:1 depending on the linkage map.
Hence, the correct option is C.
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
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
Which is required for sexual reproduction
Answer:
meiosis
Explanation:
meiosis is used to produce gametes for sexual reproduction
Answer:
Meiosis, and female and male
Explanation:
Sexual reproduction is a reproduction that requires a male and a female of the same species to contribute genetic material. Special cells called gametes are produced through meiosis, which halves the number of chromosomes in each resulting cell. These cells are called haploid gametes.
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.
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.
List 3 organisms that are made of plant cells:
Answer:
Seed Plants
Ferns
Mosses
Thallophytes
Explanation:
Suppose an ice cube is dropped into a beaker of hot water. Eventually, the ice will melt and the hot water will cool. Which of the following statements best describes the water in the beaker?
A.
The water will reach thermal equilibrium.
B.
The water will not all be the same temperature.
C.
The warmer water will rise above the cooler water.
D.
The water will reach specific heat.
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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What are 3 lines of evidence that corroborate the theory of evolution?
Answer:
Lines of Evidence supporting theory of evolution by natural selection: Fossil evidence, Biographical evidence and Anatomical evidence.
Explanation:
I majored in Biology
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
how have co2 levels changed since 1870
Answer:
raised atmospheric concentrations of CO2 by 47% above pre-industrial levels
Explanation:
Over the past 170 years, human activities have raised atmospheric concentrations of CO2 by 47% above pre-industrial levels found in 1850. This is more than what had happened naturally over a 20,000 year period (from the Last Glacial Maximum to 1850, from 185 ppm to 280 ppm).
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.
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:-
https://brainly.com/question/14688752
Those are questions
Here is the chart to go off
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:
:-) :-) :-) :-) :-) :-) :-) :-) :-)
Please help
Answer:
B
Explanation:
sorry if im wrong!!!
1) BB x bb (B=Brown, b=blue) 2) Aa x Aa (A=Tall, a=short) 3) DD x Dd (D=Rough,d=smooth) 4) Ee x ee (E=Stripes, e-soild). ? help someone
Answer:
1) Brown, 2)Tall with a 25% chance of short 3) Rough 4) 50% chance of solid 50% chance of stripes
Explanation:
The big letters are the dominant. Dominant always shows up if its part of it. The genetic squares show that any square with a Big letter will present the big letters trait. i didnt really understand so i hope this is what you're looking for
True or false scientific name tells you to family in which the organism belong
Answer:
False
Explanation:
A scientific name for a species is a unique name, which means that no species can have the same scientific name. The scientific name of a species tells you the genus and the species name of an organism. The genus comes first in the name and is the more inclusive group of organisms.
FILL IN THE BLANK!!
Linnaeus developed two groups for classifying organisms: genus and _____
Answer:
Species
Explanation:
I majored in Biology
Answer:
Species I got 90% but this one was right
Explanation:
proof
