ARE ALL CELLS THE SAME?
Answers
Answer: No
Explanation:
Answer:
no
Explanation:
There are two cell types: prokaryotes and eukaryotes. Prokaryotic cells are usually single-celled and smaller than eukaryotic cells and prokaryotes have no cell membrane where as eukaryotes do
Related Questions
Which of the following is an example of stored energy? Select all that apply. *
A.a gallon of gasoline
B.water flowing downhill
C.a car battery
D.a lake at the top of a hill
E.a spinning top
Answers
Answer:
C
Explanation:
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If the primary structure of the protein is changed, what will happen to a) the secondary structure and b) the tertiary structure of the protein
Answers
Answer:
The primary structure refers to the amino acids in a protein molecule. Changing one of the amino acids can affect whether a protein will form alpha helices or beta sheets during folding. If alpha helices and beta sheets are changed, the interactions between amino acids along the length of the protein will be altered as well, leading to changes in the final 3D structure of a protein experiencing a primary structure change.
Explanation:
a) The secondary structure may be affected, and some secondary structural elements may be lost or altered.
b) The tertiary structure will likely be disrupted or changed, affecting the overall folding and 3D conformation.
Protein primary structure refers to changes in the linear sequence of amino acids that make up the protein chain. Because it dictates amino acid interactions and bonding, the fundamental structure is essential for secondary and tertiary structure creation.
a) Primary structural changes impact secondary structure. Hydrogen bonding between amino acids forms secondary structures like alpha-helices and beta-sheets. These relationships may be interrupted if the basic structure is changed, causing secondary structural components to lose or distort.
b) Primary structural changes can also affect tertiary structure. The protein molecule's 3D tertiary structure is governed by hydrophobic interactions, disulfide bonds, and van der Waals forces. Changes in the fundamental structure may disrupt these connections, leading the protein to misfold or lose its 3D shape.
Any protein primary structure mutation can cascade into higher-order structures, causing loss of function or altered biological activity.
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Which of the following is NOT molecular evidence that supports the theory that all life evolved from a single common ancestor?A. All life has a universal genetic code that works the same way in every organism on Earth.B. ATP is a universal energy storage molecule for all organisms.C. All proteins in every organism are formed from the same 20 amino acids.D. All organisms have Pentalipid membranes surrounding them.
Answers
The correct answer is D. All organisms have Pentalipid membranes surrounding them. Most organisms have a bilipid layer, although several microbes have different characteristics in its cell membrane.
On the cellular level, what causes cancer?
A. cells produced with DNA
B. accelerated cell death
C. out-of-control cell growth and division
D. defective cell membranes
Answers
Answer:
A
Explanation:
Biotic factors are the
Answers
Answer:
Biotic factor is a living organism that shapes its environment.
Explanation:
In a freshwater ecosystem, examples might include aquatic plants, fish, amphibians, and algae.
Answer:
Biotic factors are the living organism which are present in the environment such as humans , plants , animals and microorganisms.
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Find the area inside the cardioid =6−4cos(theta).
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Numerous natural formations display the cardioid shape, which has biological relevance, which is determined by the equation r = 6 - 4cos().
The form of some animal hearts, including those of some cephalopods and sea gastropods, is one striking example. These species' cardioid-shaped hearts have developed to help them efficiently pump blood throughout their bodies. Their physiological demands are supported by the high blood flow that is maintained by the cardioid shape's narrowing apex. Additionally, certain flower species, such as several cyclamen species, have a cardioid-like arrangement of their petals. By offering an ideal landing site, its design helps to draw pollinators. The cardioid shape thus exhibits functional modifications for circulation and reproduction in biology.
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--The complete Question is, What is the biological significance of the cardioid shape in nature? Explain any patterns or phenomena observed in biological structures that resemble or approximate a cardioid shape. How does the equation for the cardioid, given as r = 6 - 4cos(θ), relate to these biological structures? Discuss any potential implications of the equation for understanding the functions or adaptations of organisms that exhibit cardioid-like structures. Provide examples of organisms or biological systems where the cardioid shape is prominent and explain how this shape benefits their survival, reproduction, or other biological processes. --
The graphic below shows an unlabeled animal cell. In which location would genetic material most likely be found?
Answers
Answer:
Nuclues.
Explanation:
The nucleus holds the genetic information.
Which energy transformation occurs in the 2nd step of photosynthesis?
Answers
1. The type of environment that is suitable for a certain species is its
A. habitat
B. community
C. geographical range
D. population
Answers
Answer:
Habitat
Explanation:
Definition: he natural home or environment of an animal, plant, or other organism.
"wild chimps in their natural habitat"
What is the substance modified in a chemical reaction?
Answers
Answer: reactants or reagents.
Explanation:
Which statement accurately describes binary star systems?
They have more than two stars.
They have stars that are always visible.
They include large groups of stars.
They have stars that might appear to wobble.
Answers
Answer:
The correct answer is D.They have stars that may appear to wobble.
Explanation:
Binary star - Wikipediaen.wikipedia.org › wiki › Binary_star
''Astronomers have discovered some stars that seemingly orbit around an empty space. Astrometric binaries are relatively nearby stars which can be seen to wobble around a point in space, with no visible companion. The same mathematics used for ordinary binaries can be applied to infer the mass of the missing companion''
-Wikipediaen.wikipedia.org › wiki › Binary_star
-Edge 2021
Iv'e done this one before.
Some commonly look like this:
Answer: The answer is D
:)
Explanation:
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please help me .Is platypus a mammal or a bird
Answers
Answer:
Platypus is an mammal.
Explanation:
Because platypus cannot fly, and lays eggs. It does not live in nests, but in holes on the ground. The parents platypuses can have venom but the smaller ones do not have venom. This is why they are threatened by other animals.
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______ tend to effect the whole body.
A. Phototoxins
B. Endotoxins
C. Myotoxins
D. Exotoxins
Answers
Answer:
endotoxins
Explanation:
because they are inside of the body
Which of the following is true?a.The branchpoints in glycogen are alpha-1,4-glycosidic bonds.b.Glycogen phosphorylase in the muscle is activated by ATP.c.The immediate products of glycogen phosphorylase are glucose 1-P andglycogen (n-1).d.Glycogen phosphorylase in the liver is activated by glucose.
Answers
The correct statement is the immediate products of glycogen phosphorylase are glucose 1-P and glycogen (n-1) (Option C).
a. The branch points in glycogen are actually alpha-1,6-glycosidic bonds, not alpha-1,4-glycosidic bonds. Alpha-1,4-glycosidic bonds are found between glucose units in the linear chains of glycogen.
b. Glycogen phosphorylase in the muscle is not activated by ATP; instead, it is inhibited by ATP. This enzyme is activated by AMP and inactivated by ATP, as high levels of ATP indicate sufficient energy in the muscle cells.
c. This statement is true. Glycogen phosphorylase cleaves the alpha-1,4-glycosidic bonds, releasing glucose 1-phosphate and leaving glycogen with one less glucose unit (glycogen n-1).
d. Glycogen phosphorylase in the liver is not activated by glucose. It is regulated by hormones, such as glucagon and insulin, which affect its phosphorylation state. Glucagon promotes glycogenolysis by activating glycogen phosphorylase, while insulin inhibits it.
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the lower, narrow portion of the breast bone is called the
Answers
The lower, narrow portion of the breast bone is called the xiphoid process.
What is the xiphoid process?
The xiphoid process is a small, cartilaginous extension at the bottom of the sternum or breastbone. It is the smallest and most inferior (lowest) part of the sternum. The xiphoid process is important because it serves as an attachment site for several muscles, including the diaphragm, rectus abdominis, and transverse abdominis.
The xiphoid process also helps to protect the liver and other organs located in the abdominal cavity. In rare cases, the xiphoid process can become damaged or fractured, causing pain and discomfort in the chest and abdomen.
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List and explain three examples of evidence for Evolution by naturalselection
Answers
The three main examples of evidence for Evolution by natural selection are:
1. Fossil evidence - fossils are preserved remains of living beings, such as animals, plants and other organisms from the past. The show how those organisms were in the past and they can be ued to try ato understand how they evolved;
2. Biogeographical evidence - biography is the study of the geographical distribution of organisms, and it can help us understand migratory movements that could result in different species living in different places but from the same ancestor, for example, among other things (like how and when species may have evolved);
3. Anatomical evidence - anatomical evidences are similarities in anatomy and structure of different organisms, showing that they could be related.
what is A? plsssss helppppp
Answers
Answer:
It should be called the amniotic sac-
it's the fluid sac in which the fetus develops (it's also what bursts when it's called "breaking water"
Explanation:
Develop and explain models of the rock cycle PLEASE HELP
Answers
This model explains how igneous rocks are created by magma rising to the surface, where it solidifies. Sedimentary rocks are created by erosive agents and compaction forces. And metamorphic rocks are created by changes in temperature and pressure.
What is the rock cycle?The rock cycle is the geological process through which rocks transform and change from one type to another.
The cycle begins when magma rises by convection currents to the Earth's surface where it gets cold, solidifies, and turns into igneous rocks.
Igneous rocks can,
Suffer erosion and turn into sediments, which will accumulate, compact and create sedimentary rocks.Suffer changes of temperature and pressure, originating metamorphic rocks.Be exposed to extreme temperatures under the crust, melt and become magma again.Sedimentary rocks are composed of rocky sediments from other rocks and the remains of living beings that get stuck within the sedimentary layers.
Sedimentary rocks can,
Suffer erosion and create new sediments to build new sedimentary rocks. Be exposed to heat and pressure, originating metamorphic rocks. Melt and become magma.Finally, metamorphic rocks are produced underground when other rocks suffer changes.
Metamorphic rocks have two destinies,
Turning into sedimentary rocks.Becoming magma.This model explains how these three types of rocks are created and how each of them constantly turns into the other type.
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what is one thing that members of the same species can do, that the other peers of organism cannot
Answers
Breeding between different species, although possible, is often complicated as it results in infertile or non-viable offspring. This usually occurs due to the difference in the karyotype.
The karyotype is the set of chromosomes that an organism possesses, for example, the human has 23 pairs of chromosomes (46 chromosomes).
For reproduction to be successful and give rise to healthy organisms, the parents must be of the same species (have the same number of chromosomes and these chromosomes must be homologous, i.e. have similar genes).
Therefore, unlike organisms of different species, the reproduction of 2 organisms of the same species can result in fertile offspring capable of reproduction.
the so-called piltdown man was once considered an unusual and perplexing human ancestor, but it turned out to be the jaw of a young orangutan attached to a homo sapiens skull. what dating technique exposed the piltdown fraud?
Answers
The dating technique that exposed the Piltdown fraud was fluorine absorption dating. Flourine absorption dating is a relative dating technique used to determine the relative age of bones from ancient humans or animals.
The technique compares the levels of fluorine in bone from the same site, determining relative age based on these comparisons. This dating technique was used to expose the Piltdown fraud.According to a study published in Nature on November 21, 1953, the Piltdown man was discovered to be a forgery due to fluorine dating techniques. They used fluorine dating, a method of analyzing how much fluorine has penetrated fossil bones since burial. They found that the Piltdown remains contained less fluorine than any of the other materials they examined. This evidence showed that the skull and jaw could not have been buried together and indicated that the pieces of the skull had been artificially stained to match the colour of the jaw.The Piltdown man is one of the most prominent hoaxes in the history of science. The skull had been discovered in the early 20th century in Sussex, England, and had been presented as a crucial missing link between humans and apes. The scientific community was fooled for more than 40 years, until it was discovered that the skull was actually a forgery, made up of the jaw of a young orangutan and a human skull that was less than 1,000 years old.Learn more about skull: https://brainly.com/question/1491477
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Which factor is most likely to cause a faster rate of blood flow.
Answers
Answer:
Exercising
Explanation:
Exercising acts as a factor which cause a faster rate of blood flow.
Which type of wave is used in sonar to detect objects?(1 point)
Answers
Answer: sound waves
Explanation:
how does light intensity affect the rate of photosynthesis??
Answers
Answer:
Because more light allows more chemical reactions in the plant to occur there for helping increase the rate of photosynthesis.
Explanation:
what is unisexual flower
Answers
Which of the following molecule is NOT needed for the Calvin Cycle to take place?
a. H2O
b. CO2
c. RuBP
d. NADPH
(5C enzyme)
Answers
Answer:
C.
Explanation:
The chemical RuBP, is not even mentioned in that cycle, making it the least viable answer.
H2O is not needed for Calvin cycle to take place.
Option A is the correct answer.
Calvin cycle is the cycle that take place during photosynthesis and it is light depend where Co2 enters the pores of the stomata of the leaf.
It is in three stages.
1. Carbon fixation: Co2 react with with three molecules of the five carbon acceptor molecule (RuBP) to produce ,three molecules of carbon compounds that divide to form three carbon compound (3-PGA) in the presence of rubisco enzyme.
2. Reduction stage: In this stage,6 ATP and 6 NADPH convert six 3-PGA molecules to 6 molecules of three-carbon sugar (G3P). It is a reduction reaction because NADPH lose electrons to a three-carbon intermediate to produce G3P.
3. Regeneration : G3P molecule move to produce glucose, five G3Ps are recycled to produce the RuBP acceptor. This reaction requires ATP.
Therefore, H2O is not included in Calvin cycle.
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How far away is the moon from earth?
Answers
Answer:
238,900
Explanation:
and heres dark humor
"I have good and bad news," the doctor said to his patient. "Give me the good news first," the patient said. "Your test results are back," the doctor said, "and you have only two days to live." "That's the good news?" the patient exclaimed. "What's the bad news?" "I've been trying to reach you for two days."
Answer:
238,900 mi
Explanation:
it can be found
Show the Direction of Water →
Expand, Shrink, Stay the Same
Hypertonic, Hypotonic or Isotonic
8% Salt
17% Salt
12% Salt
5% Salt
15% Salt
11% Salt
2% Salt
4% Salt
7% Salt
7% Salt
What’s the blanks?
Answers
Answer:
Its joe
Explanation:
Joe pen15 into my b00ty hole and i eat it
Please help i’ll give brainliest:(
Answers
Answer:Science
Explanation:
We have been learning this in science and not in any other subjects,I think it’s right…
Tell me if it’s wrong.
If it’s wrong you don’t have to give brainliest :(
But I would appreciate if you did :)
Consider the following two statements about succession.
Student 1:
Matthew - As succession begins, communities tend to be dominated by mostly K-selected species. As succession continues, r-selected species tend to compete better and therefore become more and more common.
Student 2:
Iman - As succession begins, communities tend to be dominated by mostly r-selected species. As succession continues, K-selected species tend to compete better and therefore become more and more common.
Which student is correct?
a. Provide a rationale for your answer (2 marks)
b. Provide a specific example of succession which includes at least one example of an r-selected and one example of a K-selected species. (1 mark)
Note - No marks are earned by simply agreeing with either Matthew or Iman
Answers
Reflexive Motion is caused by the gravitational pull that the planet exerts on its _____
Answers
Answer:
As an exoplanet orbits its parent star, it exerts a reflex motion on the star (caused by the gravitation pull of the planet on the star). This causes the position of the host star to oscillate with each orbital period of the planet.
Explanation: