Answers
Explanation:
Single circulation is less efficient as gill capillaries slow down the blood flow so the body receives blood at a low pressure which decreases the oxygen supply to the cells.
Double circulation is more efficient as blood at higher pressure especially in humans and mammals
In single circulation only venous blood passes through the heart.
In double circulation mixed or oxygenated or venous blood passes through the heart.
Explanation:
answer refer in attachment
Related Questions
what are 5 examples of natural systems
Answers
Answer: 5 examples of natural systems are coastal, estuary, river, lake, forest, and agricultural.
Explanation:
If carbon dioxide is completely removed from a plant’s environment, what would you expect to happen to the plant’s production of high-energy sugars?
Answers
Answer:
plant will disapia or die becouse photosynthesis are not take place
the strategy of ecosystem development: an understanding of ecological succession provides a basis for resolving man's conflict with nature
Answers
Ecological succession provides a basis for resolving man's conflict with nature because this is the process in nature by which the different kind of species and the habitat in an area changes according the time.
This succession is important for the growth and the development of an ecosystem. It start the colonization and development of new area and redevelopment of the destroyed area.
The principle of ecological succession have a important relationship between man and nature. It need to be examined as basis for resolving man's environmental crisis.
Colonization is the process of establishing control and settling the indigenous people of an area.
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3. Forming Your Opinion Should antibiotics be
restricted? Are there some situations in which
such regulations would be more appropriate
than others?
Answers
Answer:
that depends the the kind of antibiotic it is. yes there some that may end up cause more problems then fixing them but there are some antibiotics that be very well within the human body. so if you ask me there should only be restraints on the ones that cause more problem. then they should find a way to better them and unrestricted them. we all known we have more than enough technology to do that. if we really wanted to we could make one antibiotic to cure everything no matter what it is.
Explanation:
A man with Type A blood has a child with a woman with Type B blood. The child is Type O. What are the genotypes of the parents?
Answers
Which statement best describes a major point of Darwin's theory of Natural Selection?
All things are not related
B
The best adapted organisms are most likely to survive
C Organisms become less complex over time
D
Change in organisms occurs suddenly
ASAPPPO
Answers
Answer B
Explanation:
What has happened to the joints of a person with
arthritis?
joints became inflamed
O joints became tougher
joints became softer
joints became more cartilaginous
Answers
Answer:
joints became inflamed
Explanation:
Arthritis is an inflammation of the joints.
Can someone create me a meaningful final statement about phosphorus? THANK YOU!! 12 points :)
Answers
Answer:
um wot
Explanation:
Answer:
Phosphorus is a mineral that makes up 1% of a person's total body weight. It is the second most abundant mineral in the body. It is present in every cell of the body. Most of the phosphorus in the body is found in the bones and teeth.
Explanation:
hope this helps :D pls mark brainliest :D
My last one ⚠️⚠️
Salt dressing is a(n)
A. Compound
B. Element
C. Heterogenous
D. Homogenous
Answers
Answer:
hopefully its a. compound
Explanation:
what is the main difference between the two hypotheses for the origin of the eukaryotic cell? one attributes the formation of the endoplasmic reticulum and nuclear envelope to infolding of the plasma membrane. one hypothesizes that engulfment of a proteobacterium occurred after the formation of the nuclear envelope, rather than before. only one involves the conversion of a proteobacterium to a mitochondrion. one hypothesizes that eukaryotic cells evolved from an archaeon, rather than a bacterium.
Answers
The main difference between the two hypotheses for the origin of the eukaryotic cell is one hypothesizes that engulfment of a proteobacterium occurred after formation of the nuclear envelope rather than before.
What is cell ?The smallest component of all living things, including human tissue, that is capable of independent existence. The cell membrane, nucleus, and cytoplasm make up a cell's three basic structural components.
All living things are composed primarily of cells. Trillions of cells make up the human body. In addition to absorbing nutrients from meals and converting those nutrients into energy, they also provide the body structure and perform certain tasks.
Types of cell :Prokaryotic and eukaryotic cells are the two main subtypes of cells. Prokaryotic and eukaryotic cells have different shapes (see prokaryote, eukaryote), yet they share many of the same molecular characteristics and functions.
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What is menstruation
Answers
Answer:
a period
bleeding from the woman's parts
Explanation:
A rock has been sent on a journey down through the layers of the Earth until it reaches the inner core. Explain what happens to the atoms in the rock as it moves through each layer.
Answers
Answer:
The rock components of the crust are slowly but constantly being changed from one form to another and the processes involved are summarized in the rock cycle (Figure 3.2). The rock cycle is driven by two forces: (1) Earth’s internal heat engine, which moves material around in the core and the mantle and leads to slow but significant changes within the crust, and (2) the hydrological cycle, which is the movement of water, ice, and air at the surface, and is powered by the sun.The rock cycle is still active on Earth because our core is hot enough to keep the mantle moving, our atmosphere is relatively thick, and we have liquid water. On some other planets or their satellites, such as the Moon, the rock cycle is virtually dead because the core is no longer hot enough to drive mantle convection and there is no atmosphere or liquid water.
Explanation:
hope it help you
pick me as the brainliest
Look at your answers to the second set of questions, “What else is made from carbon? What kinds of processes use carbon?” Now that you know more about carbon, add to your answer.
Answers
The substance which are made from Carbon include furniture, clothing etc and the kind of processes which use carbon is photosynthesis and respiration.
What is Photosynthesis?This is referred to as the process in which green plants manufacture their food through solar energy from the Sun and involves the use of compounds such as carbon dioxide and water which results in the formation of glucose.
All organic molecules contain carbon and it is found anywhere such as trees, in the form of gases etc, It is used to make variety of things such as furniture, cloth and is a very important element.
Processes such as Photosynthesis and respiration requires the use of carbon dioxide in their respective metabolic reactions which is therefore the reason why it was chosen as the correct choice.
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i need help on a biology question
Answers
Answer:
ask
Explanation:
ready to help
go ahead
Answer the following questions based on the article you just read. Stem Cell Basics Why are there more debates than answers when discussing stem-cell research?
Answers
Answer:
Scientists do not fully understand how stem cells proliferate and differentiate.
There are ethical concerns debated when using embryonic stem cells for research.
Scientists do not know the signals used by stem cells and if they are similar when forming specialized cells; they are unable to grow specialized and unspecialized cells in the lab.
It is a newer technology with many questions left to answer.
Explanation: For Edge 2020
What is the direct result of this biological process?
a) duplication of genetic material
b) formation of mutations within cells
c) fertilization of an egg with a sperm
d) generating new combinations of alleles
Answers
Answer:
C
Explanation:
The direct result of this biological process is generating new combinations of alleles. The correct option is d.
What are chromosomes?Chromosomes are x shapes of hereditary material that are preset inside the nucleus. It is made up of DNA, genes, and proteins. Genetic characteristics of the genotype of an organism are unique because of unique genetic material, and this can be transferred to another generation from the first generation.
"Allele" is the word that we use to describe the alternative form or versions of a gene. People inherit one allele for each autosomal gene from each parent, and we tend to lump the alleles into categories. When chromosomes cross over happens, the alleles changes and a new combination produces.
Therefore, the correct option is d. generating new combinations of alleles.
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What is the complimentary pairing of ACATGATCGG
Answers
Answer:
DNA is TGTACTAGCC
RNA is UGUACUGCC
Explanation:
Human brain cells do not use fermentation.explain why a lack of oxygen for even a short period of time might result in the death of brain cells
Answers
Answer:
Brain cells are very sensitive and when they do not have oxygen they slowly start dying off which leads to brain damage.
Explanation:
Glycolysis produces important electrons and ATP which allow cellular respiration and fermentation to occur.
Brain produce ATP by glycolysis is the only process to generate energy, if anaerobic condition brain cells get dead.
What is fermentation?Since oxidative phosphorylation cannot make ATP in the absence of oxygen, glycolysis takes over as the cell's main source of ATP.
Because it supplies cells for the glyceraldehyde-3-phosphate dehydrogenase reaction, which comes before the steps that produce ATP, lactic acid fermentation is significant.
The adult brain only has a finite quantity of anaerobic glycolysis energy and time to sustain ion homeostasis and other vital activities before multiple events take place that cause brain cell damage and death.
Therefore, brain cells only depend on aerobic glycolysis for energy production.
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A DNA segment is changed from -AATTAG- to -AAATAG-. This is a
a. substitution mutation
C. inversion mutation
b. translocation mutation
d. deletion mutation
Answers
In the 1990s, many scientists agreed that the five-kingdom classification scheme should be expanded to six kingdoms. Which discovery supported this decision?
Answers
the use of microscope because it led to the discovery of new organism and identification differences in cells
One of the most important checkpoints in the cell cycle, also known as the restriction point", is the -
Answers
Answer:G 1 checkpoint
Explanation:G 1 checkpoint is the main decision point of the progression of the cell cycle. It is the rate-limiting step of the cell cycle known as the restriction point. The G1 checkpoint occurs at the transition stage of the G 1 stage-cell into the S stage. Protein synthesis and DNA replication occur during the G 1 phase.
3. What is the difference between an atom and a molecule?
Answers
Answer:
Molecule is composed up of many atoms.
Explanation:
Answer:
Atoms are single neutral particles. Molecules are neutral particles made of two or more atoms bonded together.
Explanation:
WILL GIVE 30 POINTS
Which of the following does a weather station model demonstrate? O altitude air mass air density temperature
Answers
Answer:
Your answer is D) Temperature.
-
1.Complete the statements about meiosis:
The process of meiosis occurs during the_______and results in_____.To maintain the correct number of chromosomes in offspring, male and female gametes contain chromosomes as somatic cells. During fertilization, gametes fuse to form a_____ cell called a zygote
2. Complete the statements about photosynthesis:
Glucose molecules are a product of _____ during_____ . After heterotrophs ingest food, glucose molecules are broken down during _____ in _____.
Answers
Answer:
Sex cells, haploid number of chromosomes, Diploid cell.
carbondioxide and water, photosynthesis, respiration, carbondioxide, water and energy.
Explanation:
The process of meiosis occurs during the division of sex cells and results in haploid number of chromosomes. During fertilization, gametes fuse with each other to form a diploid cell called a zygote. Glucose molecules are a product of two reactants known as carbondioxide and water during the process of photosynthesis. After heterotrophs take food, glucose molecules are broken down during respiration and as a result carbondioxide, water and energy in the form of ATP are produced.
The process of meiosis occurs during se-xual reproduction and results in haploid cells. To maintain the correct number of chromosomes in offspring, male and female gametes contain chromosomes as somatic cells. During fertilization, gametes fuse to form a diploid cell called a zygote.
Glucose molecules are a product of plants during photosynthesis. After heterotrophs ingest food, glucose molecules are broken down during glycolysis in the cytoplasm.
What is meiosis?Meiosis is a process in reproduction in which haploid cells are produced from diploid cells.
The process of meiosis occurs during the se-xual reproduction and results in haploid cells. To maintain the correct number of chromosomes in offspring, male and female gametes contain chromosomes as somatic cells. During fertilization, gametes fuse to form a diploid cell called a zygote.
What is photosynthesis?Photosynthesis is the process by which green plants produce their food from carbon dioxide using energy from sunlight.
Glucose molecules are a product of plants during photosynthesis. After heterotrophs ingest food, glucose molecules are broken down during glycolysis in the cytoplasm.
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a is a speleothem that forms on the ceiling of a cavern and resembles an icicle made of rock.
Answers
Stalactite.
Stalactite:
Often, stalagmites develop up from the cave floor, whereas stalagmites typically grow down from the cave roof.It's simple to distinguish between the two since stalagmites have a "G" for ground and stalactites have a "T" for top.Typically made of calcium carbonate, stalagmites can also be made of lava, mud, peat, pitch, sand, sinter, and amber.A single drop of water rich in minerals is the origin of all limestone stalactites.The smallest ring of calcite is left behind by the falling water drop.Another calcite ring is left behind with each new drop of water that develops and drops.Learn more about Stalactite, here
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Water makes up approximately 60% of the human body and plays a vital role in regulating body temperature. Which property of water makes it good at regulating temperature?.
Answers
Answer:
t has a large heat capacity
Explanation:
water allows the body to release heat when the temperature is higher. And water will be evaporated from the body when it begins to sweat
Which is the right answer?
Answers
Answer:
might be more as it says left proof reading which means many errors are left out as they are not rechecked
charles chamberland developed porcelain filters that allowed other scientists to demonstrate that viruses are smaller than bacteria.
Answers
Charles Chamberland was a microbiologist who discovered a filter that is known as porcelain filter that has small pores than bacteria.
This porcelain filter was used to separate the bacteria, by passing the solution through this filter that allow the solution to pass through the filter but not bacteria.
This filter was used to demonstrate that virus are small than bacteria because virus can easily pass through this filter because of their small size. these virus are defined as filterable agents.
Microbiologist is the scientist that study about the micro organisms and their life forms and processes.
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Help me plz... DNA strand: T A C C A T A T T
Answers
Answer: A T G G T A T A A
Reason: Adenine pairs with thymine and guanine pairs with cytosine. Just do the opposite paired letter of the DNA strand
what factors may lead to the accumulation of genetic differences between two physically separated populations
Answers
Factors that result in speciation encompass genetic differences, natural choice, geographical isolation, and mutation. Geographical isolation isn't a first-rate factor in the speciation of a self-pollinating plant species as pollination takes place among the reproductive organs of the identical flower.
In their separate niches, the two organizations go their very own evolutionary ways, collecting extraordinary gene mutations. Being subjected to distinct selective pressures, experiencing extraordinary historical activities, and eventually turning incapable of interbreeding they never come collectively again.
Speciation occurs when a set inside a species separates from other contributors of its species and develops its very own unique traits. The demands of a distinct environment or the traits of the contributors of the new institution will differentiate the brand new species from their ancestors.
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