Answers
Related Questions
how contractile vacuole function in osmoregulation
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Answer: A contractile vacuole (CV) is an organelle, or sub-cellular structure, that is involved in osmoregulation and waste removal. ... In freshwater environments, the concentration of solutes inside the cell is higher than outside the cell. Under these conditions, water flows from the environment into the cell by osmosis. The contractile vacuole (CV) complex is an osmoregulatory organelle of free-living amoebae and protozoa, which controls the intracellular water balance by accumulating and expelling excess water out of the cell, allowing cells to survive under hypotonic stress as in pond water.
Explanation:
what is the main point of the villi
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Answer:
The villi of the small intestine project into the intestinal cavity, greatly increasing the surface area for food absorption and adding digestive secretions. The villi number about 10 to 40 per square millimetre (6,000 to 25,000 per square inch) of tissue.
What items are used to identify the genetic makeup of an unknown organism?
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Answer:
Polymerase chain reaction machine
Primers
Petri dishes
Test tubes
Pipettes
DNA Polymerase
Free nucleotides
The organism to be identified
Explanation:
To identify the genetic makeup of an unknown organism, the nucleotide sequences fond in the Deoxyribonucleotide (DNA) of a known organism is matched to the DNA of some known organisms. If there is a certain degree of sameness in most of the matched parts, then the unknown organism can be said to be related to the known organism. This is a comparative study.
To carry out this identification, items used include; primers, the PCR machine, test tubes, DNA polymerase, free nucleotides, etc.
Dehydration synthesis is involved in the synthesis of all the following except
1. DNA
? proteins.
priysaccharides.
4. lipids:
5. monosaccharides.
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Answer:
Please dont delete
Explanation:
Hello. I am sorry that I can not answer your question but I am doing this so I can get answers of my own. I appreciate your understanding and I hope you get your answer soon. Good luck!
A biologist explored a remote island and discovered a new living organism. After several observations were made of the
organism, the biologist claimed that it was a vascular plant. His notes are listed below.
"I have found a new organism during my explorations. The organism was found low to the ground and is green. Based on
experiments, the organism seems to require sunlight to survive. Small, oval seeds were
found on the organism; they grew
into identical organisms when put in the soil. The organism had sharp spikes around the main body, most likely for
protection. The organism was able to absorb water from the surrounding soil. It was also observed that the organism used
specialized veins to carry water throughout its body. Based on these observations and experiments, I have determined that
this organism is a vascular plant."
Which of the following observations LEAST supports his claim?
A)
The organism is low to the ground.
B)
The organism reproduces with seeds.
The organism requires sunlight.
D)
The organism was able to transport water through specialized veins.
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Answer:
The organism requires sunlight.
Explanation:
Viroids’ largest impact is on ________.
Answers
Answer:
the agriculture indus
Correct answer: the agriculture indus
Which of the following is an example of regulated waste?
O A. A used napkin
B. A used needle
C. A used blanket
D. A used bed sheet
SUBM
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Answer:
D. A used bed sheet
Explanation:
just took the test
Fill out this cell worksheet
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Answer:
The correct answer is - 1. F 2. F 3. T 4. T 5. T 6. T 7. F 8. F 9. F 10. F
11. B, rectangular, and cell wall.
Explanation:
1. and 7. Only plant cells contain chloroplast to perform the photosynthesis process not animals. 2. and 6. Animal and plant cells both contain the mitochondria to perform cellular respiration in order to get energy from the food. 3. and 4. Plant cells have a rectangular shape structure and animal cells typically show round or spherical shape. 5. Both cells are eukaryotic cells so they carry the nucleus. 8. both cells have a cell membrane surrounding the other organelles. 9. Cell wall present in plant cells and not in animal cells. 10. A large central vacuole is present in the plant cell that performs various roles including the storage of water and nutrition.
11. In the given diagram The illustration B is a plant cell as it has a rectangular shape with a cell wall around the cell membrane.
Viroids’ largest impact is on ________.
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Storz (2007) describes an adaptive response to low partial pressure of oxygen in an environment at high elevation. Describe three other environmental conditions besides high elevation that might result in adaptation to hypoxia. List an organism found in each of the described environmental conditions that would be predicted to exhibit adaptive responses to low partial pressure of oxygen.
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Answer:
Enhanced ventilatory abilities, enhanced percentage removal of O2 from the ventilatory stream and large gill surface areas.
Explanation:
Enhanced ventilatory abilities, enhanced percentage removal of O2 from the ventilatory stream and large gill surface areas are the three other environmental conditions besides high elevation that might result in adaptation to hypoxia. These abilities will increase the resistance to lower oxygen levels in the surrounding environment. Fish is the organism which used these types of adaptation for their survival in the surrounding of low oxygen levels.
Name the major nitrogenous waste product in nile perch
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Answer:
Any metabolic waste product that contains nitrogen. Urea and uric acid are the most common nitrogenous waste products in terrestrial animals; freshwater fish excrete ammonia and marine fish excrete both urea and trimethylamine oxide.
Post-Traumatic Stress Disorder (PTSD) is most related to
O major life events
O catastrophes
O daily hassles
O conflicts
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conflicts
DNA replication is said to be semiconservative. Which of the following statements correctly explains what this means?
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Answer: DNA is a double stranded molecule. When DNA is copied the two strand of DNA (old strands) separate and new nucleotides match up with the two separated strands.
This process creates two identical double stranded DNA molecules are formed. Each DNA molecule contains one strand of the original DNA molecule and one newly synthesized (made) strand.
Explanation: https://youtu.be/Gxoyr8JKc4w
Hope this helps :D
The semi-conservative nature of DNA replication illustrates that each strand in the DNA double helix function as a template for the synthesis of a new or complementary strand.
What is DNA replication?DNA replication may be defined as a type of biological process that deals with the synthesis of two identical replicas of DNA from one original DNA molecule during cell division.
The semi-conservative model of DNA was proposed by Watson and Crick. This model implies that each double helix of DNA is composed of one new and one old strand.
In semi-conservative replication, the parental double helix is half conserved and each parental single strand remains intact.
Therefore, DNA replication is said to be semi-conservative due to the process of each new double strand consisting of one parental strand and one new daughter strand.
To learn more about the Semi-conservative model of DNA replication, refer to the link:
https://brainly.com/question/23278374
#SPJ6
what process do plants release water into the air
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Answer:
transportationnnnnnnnnnnnnnnnnnn
The diagram represents a taxonomic tree showing the possible evolution of six species of finches.
The most likely explanation for the branching pattern seen in the circled region labeled X is that:
A.
environmental changes resulted in extinction
B.
speciation occurred as a result of inbreeding
C.
no speciation occurred during this time
D.
environmental changes influenced speciation
Answers
Answer:
Option B
Explanation:
As we can see in the figure, three species of the finches in circle lie on the same main branch as three sub branches. This is an example of speciation caused by interbreeding of species which led to removal of deleterious genes and then caused emergence of three species adaptable to the existing environmental conditions.
Hence, option B is correct
what is the PH of blood when homeostasis is maintained
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Answer:
7,40
Explanation:
Please help I really need it pleaseeee
Answers
Answer:
Lizards and birds produce amniotic eggs.
Sharks were the first animals to have jaws.
Ray-finned fish and sharks are similar in that they both have paired appendages and jaws.
Birds are more closely related to crocodiles than they are mammals.
Explanation:
When a novel trait is labeled on a cladogram only the animals depicted after the label exhibit the trait.
Organisms that are located on the same clade (branch) are closely related.
A common strategy for gaining compliance used by car salespeople is the door-in-the-face technique.
True or False?
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Answer:
I think false if wrong correct me pls
have a nice day
#Captainpower
Please help this is urgent question and choices are in the image below
btw it is QUESTION NUMBER 13
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Answer:
13. B is the answer
because the DNA does not have Uracil 15. D
On the planet Kermit, in the Muppet population, there are two autosomal loci of interest. The first locus has alleles A and a, and the second locus has alleles B and b. A and B are the dominant alleles at the respective loci. The loci act in an epistatic manner, identical to the way two genes interact to produce coat color in labradors. The phenotype here is muppet hair color. We have the following results:
Muppet hair color as a function of two-locus genotypes
Two-locus genotype Muppet hair color
A_B_ Cookie monster blue
aaB_ Elmo red
__bb Janice blonde
If two doubly-heterozygous Cookie-monster blue-haired muppets mate, and produce 3200 children, which of the follow values most closely represents the expected number of Elmo red-haired offspring? The answer allows for random variation in hair color.
A. 1536
B. 672
C. 1242
D. 200
E. 549
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I couldn't help more.
why won't we bring back dinos if we have the right tec and stuff to do so and have we not just found a small amount of dna of a pregnant t rex
Answers
Answer:
Because the Dinosaurs would hunt us down and we would go extinct or endangered.
Explanation:
How does the evidence provided by the graph support the claim that Earth's climate has gradually been warming?
A. The rising sea level is a result of melting ice and the thermal expansion of water.
B. The rising sea level is a result of an increasing rate of all processes of the water cycle.
C. The change in sea level matches the change in atmospheric levels of carbon dioxide.
D. The change in sea level is the cause of increased flooding in low-lying coastal lands.
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Answer:
i think its B
The rising sea level is a result of an increasing rate of all processes of the water cycle.
pls mark me brainless. uwu
Answer:
A
Explanation:
I think thats the answer
What is the disadvantage of having an exoskeleton?
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Answer:
Disadvantages of having an exoskeleton include heightened vulnerability during the molting process and restrictive in terms of sizes and weights.
Explanation:
I nneeeedd this now fisrt person get brainliest
Answers
Answer:
Mitosis
Explanation:
2 daughter cells are being produced
plsss guys helpppp :(((
Two children have contracted measles for the first time. Of these children, only one has received the MMR vaccine.
Compare how each child produces antibodies as result of contracting this disease, explaining the process in detail
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I hope that helps
A cell with one of each kind of chromosome is a _______________________ cell.
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Answer:
Haploid!
Explanation:
A cell with multiple is a Diploid.
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What do digital signals turn sounds into?
-analog signals
-interference
-continuity
-zeros and ones
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Digital signals transform sounds into zeros and ones.
Zeros and ones or binary code?Digital sound is all that sound placed on media encoded in binary code. This encoding transforms the microphone signal into a digital code that follows various parameters such as Nyquist's theorem, sample rate, bit depth, bit rate, dithering, etc.
Whit this information, we can conclude that digital signals transform sounds into zeros and ones(binary code).
Learn more about binary code in brainly.com/question/18502436
As you are walking home from studying at the library late one evening, you get startled by a strange sound behind you. This activates your sympathetic nervous system. What affect does this change have on stroke volume? Group of answer choices Stroke volume will increase due to an increase in contractility. Stroke volume will decrease due to reduced blood pressure. Stroke volume will increase due to increased blood pressure. Stroke volume decreases due to an increase in contractility. Stroke volume will increase due to a decrease in contractility.
Answers
Answer:
Stroke volume will increase due to an increase in contractility.
Explanation:
When the individual is going through a stressful situation, the sympathetic nervous system, in conjunction with the hypothalamic-pituitary-adrenal (HPA) system, sends signals to prepares the body for stressful situations.
The body gets ready to respond to stress by increasing heart biting frequency and strength, contractibility, blood pressure, stimulating respiration and dilating respiratory tracts.
Stroke volume refers to the blood volume ejected from the ventricles as a result of the heart contraction. As said before, stressful situations increase heart bitting frequency and strength, as well as contractibility. Contractibility also influences stroke volume.
Stroke volume is determined by the difference in values of the end-diastolic volume and the end-systolic volume → SV = EDV - ESV
Contractility is one of the main factors that influence stroke volume, by affecting the end-systolic volume. It does not alter the diastolic volume. Consequently, there is an increase in stroke volume.
The central factor of systolic ejection is the myocardium sarcomere contractibility. The sarcomere´s contractile capability generates strength to become shorter after myosin heads join to the uncovered actin-binding points forming cross-bridges.
If an Arctic polar bear is transferred to a zoo in tropical Singapore, it will not be able to survive. What could be the reason for this?
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Answer:
An Arctic polar bear could not be able to survive living in singapore because of the climate or weather which is different from wich an arctic polar bear usually lives in
Explanation:
Sex is to as gender is to
A. psychological and sociocultural ; biological
B. attraction ; identity
C. biological ; psychological and sociocultural
D. identity ; attraction
Answers
Answer:it could be C or maybe D I would more say C
Explanation:
Answer:
psychologicaland socialcultrural.. biological