A class was studying human body systems. The students learned about a system
that moved oxygen to the cells and contained structures that help the body fight
infections.
The class was studying the -
muscular system
digestive system
circulatory system
endocrine system
CLEAR ALL
Answer:The circulatory system consists of the heart and blood vessels which encompass all of the arteries, veins, and capillaries. The arteries carry oxygenated blood away from the heart, and veins return deoxygenated blood back to the heart. The main purpose of the circulatory system is to transport blood, oxygen, nutrients, and hormones to and from different cells and tissues throughout the body. This system works hand-in-hand with the respiratory system to facilitate the exchange of oxygen and carbon dioxide within the blood per the alveoli in the lungs. It is also very important for the removal of wastes and poisons within the body via the digestive and urinary systems.
Explanation:
As the students learned about a system that moved oxygen to the cells and contained structures that help the body fight infections, it means they were studying circulatory system. The correct option is C.
What is circulatory system?Blood vessels in the circulatory system transport blood away from and towards the heart. Arteries transport blood away from the heart, while veins transport blood back to the heart.
The circulatory system transports oxygen, nutrients, and hormones to cells while also removing waste products such as carbon dioxide.
The circulatory system usually transports two varied fluids namely blood and lymph. Blood transports oxygen and nutrients to the cells of the body, as well as waste.
Blood also transports hormones, which regulate body processes, as well as antibodies, which fight invading germs.
Carrying immune cells to their destinations is one of the most important ways your circulatory system helps your immune system.
These vital cells could not function properly without your blood vessels and arteries.
Thus, the correct option is C.
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Cancer is a disorder in which cells have lost their ability to control which of the following?
o the surface
O the rate of osmosis
the rate of cell division
o the intake of sugars
Answer:
the rate of cell division
Analisa and Mateo, two research anthropologists interested in deciphering the relatedness between four extinct primates, were studying the similarities and differences among a number of measurements of the complex structures of the jaw fragments they collected, as well as making many other morphological contrasts between other fossilized bones from dozens of collected specimens. In the lab, they noticed the lengths of the bones of the leg, particularly the femur, tibia, and fibula, were very different in all the specimens, whereas the jaw structures were nearly identical among the specimens. What should they tentatively conclude based on this evidence
The group of choices associated with the question is as follows:
A)The four primates likely share a close common ancestor or could potentially be the same species based upon the jaw measurements.
B)The hominids with the most closely matching leg bone measurements are likely more closely related than the others, due to the importance of locomotion as an evolutionary adaptation.
C)The femur measurements are not important.
D)Because the measurements of the leg bones vary widely, it is probable that the four species are from different genera.
Answer:
The correct answer is - The four primates likely share a close common ancestor or could potentially be the same species based upon the jaw measurements.
Explanation:
On the basis of the research, it is found that the four primates have similar jaw structure and measurement and have a distinct length of bones of the leg.
The given research and founding suggests that all four primates most likely share a close common ancestor or diverge from the same species based on her jaw measurements.
Answer: The above answer is correct
Explanation: Took the test
Which of the following is the most likely effect of the mutation at nucleotide position 7 in the GULO gene of humans? A. The mutation results in the deletion of the GULO gene, so no polypeptide can be translated.
B. The deletion of the single nucleotide causes a frame shift, changing the primary structure downstream of the mutation and resulting in a nonfunctional protein.
C. The point mutation causes a substitution of the amino acid isoleucine (lle)for histidine (His) at position 7, resulting in a protein with higher than normal activity.
D The substitution of a single nucleotide in the GULO coding region results in a stop codon. This results in a smaller nonfunctional protein.
Answer:
D.
The substitution of a single nucleotide in the GULO coding region results in a stop codon. This results in a smaller nonfunctional protein
The substitution of a single nucleotide in the GULO coding region results in a stop codon. This results in a smaller nonfunctional protein.
What are GULO genes?With the use of modern genomics, it is possible to examine damaged metabolic pathways by screening the DNA of a wide range of organisms. The abundance of data has shown that the genetic entropy in human and other genomes is widespread.
Humans, apes, guinea pigs, bats, mice, rats, pigs, and passerine birds all have deletions in the GULO (L-gulonolactone oxidase) gene that result in loss of the vitamin C pathway.
According to recent studies and the data presented here, various GULO exon deletions in humans, chimpanzees, and gorillas all happened separately in each taxon and are connected to areas that contain a wide range of transposable element fragments.
Therefore, The substitution of a single nucleotide in the GULO coding region results in a stop codon. This results in a smaller nonfunctional protein.
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!PLEASE HELP AS SOON AS YOU CAN!
What health and environment factors negatively impact the flow of blood through the body?
Answer:
cow
Explanation:
feet
I will make you brainlest! Help ASAP PLEASE! What do you measure to make sure the Cornhole works good?
This is for science
Answer:
The regulation distance for a set of cornhole boards should be 27 feet. This measurement goes from the front of one board to the front of the other. As far as measuring this distance before playing, you have a few different options. One thing you can do is use a tape measure.
Explanation:
#VERIFIED ANSWERPLSS HELP ME ASAP!!I WILL GIVE YOU BRAINLYEST!!
Describe the order of succession for the regrowth of
the fire destroyed forest.
Explanation:
Primary succession is one of two types of biological and ecological succession of plant life, occurring in an environment in which new substrate devoid of vegetation and other organisms usually lacking soil, such as a lava flow or area left from retreated glacier, is deposited.[1] In other words, it is the gradual growth of an ecosystem over a longer period of time.[2][3]
Primary succession occurring over time. The soil depths increase with respect to the increase in decomposition of organic matter. and there is a gradual increase of species diversity in the ecosystem. The labels I-VII represent the different stages of primary succession. I-bare rocks, II-pioneers (mosses, lichen, algae, fungi), III-annual herbaceous plants, IV-perennial herbaceous plants and grasses, V-shrubs, VI-shade intolerant trees, VII-shade tolerant trees.
Primary succession on Rangitoto Island
In contrast, secondary succession occurs on substrate that previously supported vegetation before an ecological disturbance from smaller things like floods, hurricanes, tornadoes, and fires which destroyed the plant life.[4]
3.- Cuáles son los parámetros para la valoración de los efectos producidos por los impactos ambientales
Answer:
Los parámetros son: magnitud, extensión, persistencia, reversibilidad, recuperación, persistencia, sinergia, probabilidad de ocurrencia, relación causa y efecto
Explanation:
La evaluación de un impacto ambiental debe tener en cuenta los siguientes parámetros principales:
- Magnitud. La magnitud se refiere al hecho que un impacto ambiental puede afectar al ecosistema en diferentes niveles.
- Extensión. Este término se refiere a la superficie (por ejemplo, en metros cuadrados) del ecosistema el cual ha sufrido el impacto.
-Reversibilidad. La reversibilidad indica la probabilidad de que el ecosistema una vez que ha sufrido el impacto pueda regresar a su estado inicial.
- Recuperación. La recuperación es el grado de restauración al que puede llegar el medioambiente una vez sufrido el impacto.
- Persistencia. La persistencia indica la duración (cuantificable en tiempo) del impacto ambiental.
- Sinergia. La sinergia se refiere al hecho de que dos o más impactos ambientales poseen un efecto mayor sobre el ecosistema que el producido mediante varios impactos ambientales por separado.
- Probabilidad de ocurrencia. La probabilidad de ocurrencia expresa la posibilidad de que un impacto ambiental se produzca en un ecosistema durante un determinado período de tiempo.
- Relación causa y efecto. La relación causa y efecto clasifica a los impactos ambientales en directos (causados por el impacto) e indirectos (causados por las consecuencias derivadas del impacto).
Lab: Magnetic and Electric Fields
WILL MARK BRANLIEST
Does anybody have a filled out lab report?
Answer:
im sorry but wht class is this for
Explanation:
Answer:
:(
I dont that is why I am here
Explanation:
After visiting the park with his family, Kerry decides to build a model of a sand dune. In addition to sand, what will he need to form the model?
A ice
B. plants
C water
D wind
QUESTION: what’s the function shared by roots stems but NOT by leaves 1. Food productions 2. Structural support 3. Reproduction
Answer:
structural support is the function
The function shared by roots and stems but NOT by leaves is structural support.
What is the function of roots?
Roots are essential plant organs that anchor the plant in the soil and absorb water and nutrients from it. They also store food and help in the synthesis of growth-promoting hormones.
Roots play a vital role in the overall health and growth of the plant, and their efficiency in nutrient and water uptake determines the plant's ability to survive and thrive in its environment. Additionally, roots can form beneficial associations with fungi, such as mycorrhizae, which can aid in nutrient uptake and contribute to plant growth and health.
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What is the third step in fieldwork for marine science?
a.) sorting/analysis
b.) analysis/presentation
c.) presentation/exposure
Answer:
analysis/presentation
Explanation:
please mark me as brainliest answer
The third step in fieldwork for marine science is analysis/presentation, Thus option "B" is correct.
Why is it important to study marine science?Marine science recreates key role in the ongoing search to understand our world and to control its resources.
The interdisciplinary nature of the Marine Science curriculum will organise students to analyze deeply such co occuring issues as environmental alter, human clashes on the ocean, and biodiversity.
Thus option "B" is correct.
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Hormones are proteins that regulates many functions in the body, such as growth and cell differentiation. Which of the following does NOT describe a function of proteins in living organisms?
Answer:
c.
Explanation:
They serve as a short-term energy source for the body.
What is the opposite of precipitation?
Answer:
Disssolution
Explanation:
Precipitation is the process of a compound coming out of solution. It is the opposite of dissolution or solvation. In dissolution, the solute particles separate from each other and are surrounded by solvent molecules. In precipitation, the solute particles find each other and form a solid together
what does the following types of algae is uni cell
ular
Answer:
Most often there is a unicellular alga chlamydomonas. It moves in water with the help of two flagella located on the front, narrower end of the cell. Outside the chlamydomonas is covered with a transparent membrane, under which there is a cytoplasm with a nucleus, a red "eye" (a photosensitive body of red color), a large vacuole filled with cell juice, and two small pulsating vacuoles. Chlorophyll, contained in the chromatophores, gives a green the cell a green color.
Hope it helps
Explanation:
what are the products of the following reaction
H2SO4+NaOH
A.H20 and NaOH
B.H2O and Na2SO4
C.H2O only
D.H2O and H2SO4
Answer:
B
Explanation:
Acids react with bases to give you a salt and water
sulfuric acid reacts with sodium hydroxide to give you
sodium sulfate and water
Answer:
B.
Explanation:
the answer is b mark brainliest
Chromosomal mutations are different from point mutations in that
Answer:
Point mutation is a change to a single nucleotide letter at a single point. Hence the name.
Chromosomal mutations are deletions, rearrangements or translocations a of large sections of DNA.
Both can have effects ranging from harmless to fatal/non viable.
A point mutation could be in a region that does not code protein (and thus likely harmless) or it could introduce an early stop to translation of a gene into a protein (which could be deadly)
Chromosomal rearrangements might have the breakpoints in non gene coding regions and so be harmless or the break points could interrupt the function of vital genes .
Explanation:
Why do scientific investigations lead to more questions?
A. Scientists never agree about experiments.
B. Experiments are never correct.
C. Scientists cannot answer questions.
D. They find more things that are not understood.
Answer:
D. They find more things that are not understood
Explanation:
After discovering something, scientist tend to find something related that sparks their curiousity.
The relative difference in charge across a plasma membrane is the ____________ in an inactive excitable cell. A ____________ is used to measure the voltage difference across the plasma membrane. This is done by placing one microelectrode into the ____________ and the other microelectrode outside the neuron into the ____________ . The RMP has a value that is typically ____________ millivolts. More positive ions reside ____________ a neuron than ____________ a neuron when it is at rest.
Answer:
Resting membrane potential; voltmeter; neuron; interstitial fluid; -70; outside; inside.
Explanation:
A cell can be defined as the fundamental or basic functional, structural and smallest unit of life for all living organisms. Some living organisms are unicellular while others are multicellular in nature.
A unicellular organism refers to a living organism that possess a single-cell while a multicellular organism has many (multiple) cells.
In a cell, the "workers" that perform various functions or tasks for the survival of the living organism are referred to as organelles. Some examples of cell organelles with their respective functions in all living organisms such as trees, birds, and bacteria include; nucleus, cytoplasm, cell membrane, golgi apparatus, mitochondria, lysosomes, ribosomes, chromosomes, endoplasmic reticulum, vesicles, etc.
The relative difference in charge across a plasma membrane is the resting membrane potential in an inactive excitable cell. A voltmeter is used to measure the voltage difference across the plasma membrane. This is done by placing one microelectrode into the neuron and the other microelectrode outside the neuron into the interstitial fluid. The RMP has a value that is typically -70 millivolts. More positive ions reside outside a neuron than inside a neuron when it is at rest.
PleAse helpp:( short anawer will do
If a housefly had 6 chromosomes would the cell be diploid or haploid
If a human have 23 chromosomes would it be a gamete or a somatic cell?
Why is the chromosome number in each of the animal cells an even number?
Answer:
If a housefly had 6 chromosomes would the cell be diploid or haploid?
Haploid
if a human have 23 chromosomes would it be a gamete or a somatic cell?
Gamete
Why is the chromosome number in each of the animal cells an even number?
Even numbers could be divided by 2 evenly
-TheUnknownScientist
Explanation:
haploid
gamete
I hope its helpful
What are the 3 parts of the Cell Theory?
Answer:
1. that DNA is passed between cells during cell division
2. that the cells of all organisms within a similar species are mostly the same, both structurally and chemically
3. that energy flow occurs within
Explanation:
These findings led to the formation of the modern cell theory, which has three main additions: first, that DNA is passed between cells during cell division; second, that the cells of all organisms within a similar species are mostly the same, both structurally and chemically; and finally, that energy flow occurs within
ack I need help please :> its in science
Answer:
1. Cell
2. Tissue
3. Organ
4. Organ system
5. Organism
1) Cell
2) Tissue
3) Cells
4) Organ
5) Tissues
6) Heart
7) Organs
8) Circulatory
9) Organism
10) Human
_who was cleopatra??_
Answer:
Cleopatra VII Philopator was the last active ruler of the Ptolemaic Kingdom of Egypt. As a member of the Ptolemaic dynasty, she was a descendant of its founder Ptolemy I Soter, a Macedonian Greek general and companion of Alexander the Great.
Answer:
cleopatra was the last active ruler of the Ptolemaic Kingdom of Egypt
List and briefly describe the three main cell cycle checkpoints.
Answer:
The cell cycle is controlled at three checkpoints. The integrity of the DNA is assessed at the G1 checkpoint. Proper chromosome duplication is assessed at the G2 checkpoint. Attachment of each kinetochore to a spindle fiber is assessed at the M checkpoint.
Explanation:
good luck
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Choose all the answers that apply.
Plants can store
starch
proteins
vitamins
fats
oils
Answer:
Starch
Explanation:
Plants store their energy in form of starch
I made a cheat sheet video for the assignment! Here's the link below!! :D (no uploading needed) just copy and paste to a tab :3
file:///home/chronos/u-63a2dbb5bb283cd5db17ea994f3765ae1027f343/MyFiles/Downloads/Screen%20recording%202021-05-05%2011.10.23%20AM.webm
BRAINLIEST is appreciated :D
if u don't wanna watch the vid, the answers are all of the above! btw, sorry i'm answering late, my friend :)
What is the RNA complementary strand for GAACAT?
The RNA complementary strand would be CUUGUA
What role did the Agarose Gel play in sorting the DNA strands ?
Answer:
En gel de agarosa es un polisacárido que forma una matriz similar a la gelatina. El gel proporciona un sustrato sobre el que se puede producir la separación del ADN. Los fragmentos de ADN más grandes toman más tiempo para migrar a través de la malla de la matriz. Este fenómeno facilita la separación de las moléculas por tamaño
Explanation:
1. What is special about the hand of humans?
2. The design of the human hand is an adaptation. How does our hand's design allow us to do so many tasks such as writing, texting, and tying shoes?
Answer:
What makes human hands unique? ... This long thumb and its ability to easily touch the other fingers allow humans to firmly grasp and manipulate objects of many different shapes. The human hand can grip with strength and with fine control, so it can throw a baseball or sign a name on the dotted line.
Humans, as well as monkeys, gorillas, and other primates, have a hand that can grip and grasp objects because they have an opposable thumb. The earliest primates were arboreal (they climbed trees), and so having grasping hands was an advantage in this environment. Human thumbs modified their ancestors’ opposable thumbs, making them more mobile and thus even more opposable.
pls help fizzly me confused and ill give you a briliant thingy
Answer:
One difference between these cells is plant cell has chloroplast but animal cell does not have chloroplast.
Another difference between these is that plant cell has cell wall but animal cell does not have cell wall.
Explanation:
Plant cell are known to cells that possess chloroplast. These chloroplast contain chlorophyll which enables the plants to manufacture their own food. Animal cell does not possess chloroplast which makes it impossible for animals to manufacture their own food.
Plant cell actually have cell wall and a cell membrane but animal cell does not have cell wall but only possesses cell membrane. The cell wall gives mechanical strength and maintains cell shape.