How we supposed to do this?
Which two molecules are compounds? NaHCO3 O3 Cl2 C8H18
Answer:
CI2 and C8H18
I hope you find this helpful!
8. Which of the following groups is/are monophyletic? A. prokaryotes B. protists C. non-vascular plants D. seed plants E. all of the above
seed plants are monophyletic
Which of the following are correct regarding carbohydrates? SELECT ALL THAT APPLY They are the preferred energy source of cells. Polysaccharides are long chains of glucose molecules. They are hydrophilic. They contain energy in carbon–carbon bonds.
Answer:
They are the preferred energy source of cells.
Polysaccharides are long chains of glucose molecules.
They are hydrophilic.
They contain energy in carbon–carbon bonds.
Explanation:
Carbohydrates are one of the four biomolecules found in living systems. They are molecules made up of carbon, hydrogen and oxygen in their structures. A monosaccharide is the simplest unit of a carbohydrate. Carbohydrates are energy sources since they store energy in their chemical bonds i.e. carbon-carbon bonds.
They are preferred as energy sources by cells due to the fact that their stored energy can be released quickly for use by cells i.e. easily broken down compared to lipids.
Polysaccharides (large chains of carbohydrate) such as starch etc. are composed of long chains of monosaccharide units such as glucose. Due to the hyroxyll group in the structure of carbohydrates, they are considered water-loving or hydrophilic.
Which physiological or biological processes occur in the body through fluid dynamics? [Select all that apply]
circulation
respiration
lymphatic flow for multiple chose
Digestion
Urination
What cell organelle stores water for plant cells
Answer:
vacuoles
Explanation:
What is the first phase of mitosis? o anaphase O metaphase o prophase o telophase
Answer:Prophase. Prophase is the first step of mitosis. This is when the genetic fibers within the cell’s …
Metaphase. Metaphase is the phase of mitosis that follows prophase and prometaphase and …
Anaphase. The third phase of mitosis, following metaphase and preceding telophase, is anaphase. …
Telophase. Telophase is the last phase of mitosis. Telophase is when the newly separated d
Explanation:
Answer:
Prophase
Explanation:
Prophase is the first stage in mitosis
Which of the following is a basic requirement for evolution by natural selection to work? A. Individuals must reproduce at a rapid rate. B. Each population must be small in size. C. A population must have some genetic variation. D. All of the above.
Answer:
D
Explanation:
Explain the ability of water to moderate temperature within living organisms and in organisms'
environments.
Answer:
The advantage of water having the ability to moderate temperature is due to its high specific capacity
Explanation:
The ability of water to moderate temperature within living organisms and in organisms' is due to its high specific capacity which is a basic feature and helps in the absorption of heat from the body by the water.
This is known as a form of homeostatic mechanism practiced by organisms used in dealing with excess heat and temperature balance.
What experimental evidence supports the fluid mosaic model of biomembranes?
Answer:
There are many experiments available: Freeze-fractue experiment is one of them.
Explanation:
The fluid property of functional biological membranes had been determined through labeling experiments, x-ray diffraction, and calorimetry.
experimental evidences for the "mosaic" and "fluid" property of layers of mosaic fluid model -
- Freeze-fractue experiment the layer and watch protein.
- An significant experiment that gave proof supporting liquid and dynamic natural was performed by Frye and Edidin.
-They utilized Sendai virus to drive human and mouse cells to combine and create a heterokaryon and showed that proteins of both human and mouse remains segregated to isolate parts of the heterokaryon a brief time frame after cell combination. However, the proteins inevitably diffused and after some time the outskirt between the two parts was lost.
- Lowering the temperature eased back the pace of this diffusion by making the layer phospholipids progress from a liquid to a gel stage.
- Singer and Nicholson supported the consequences of these tests utilizing their liquid mosaic model.
Cholera spreads through
Polluted air
Mosquito bite
Polluted water
Dog bite
Answer:
it spreads through polluted water.
Explanation:
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Cholera is a water-borne disease spread through polluted and stagnant water bodies. It is caused by a bacteria named Vibrio cholerae by the help of the vector 'Water'.
Hence it is advised to consume boiled and purified water, clean the nearby water bodies and not letting them go stagnant. Always preferred: Hygiene and Sanitation.
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Suppose a doctor is asking whether eating carrots every day will improve his patients’ eyesight. Which statement would be a bad hypothesis for this study?
If the patient is given carrots every day, then the patient’s eyesight will worsen.
If the patient is given carrots every day, then the patient’s eyesight will be closely monitored.
If the patient is given carrots every day, then the patient’s eyesight will improve significantly.
If the patient is given carrots every day, then the patient’s eyesight will improve slightly
Answer:
The answer would be C)If the patient is given carrots every day, then the patient’s eyesight will improve significantly.
Explanation:
Carrots makes your eyes get better and if someone keeps eating carrots everyday then their eyesight will improve A LOT
Answer:
The answer would be C)If the patient is given carrots every day, then the patient’s eyesight will improve significantly.
Explanation:
Carrots makes your eyes get better and if someone keeps eating carrots everyday then their eyesight will improve A LOT
The primary differentiating feature between protists and all other members of Eukarya is that protists are _____.
Answer:
Unicellular
Explanation:
Protists can be defined as a group of eukaryotes that can not be regarded as fungi, animals or plants. These type of organisms are known to be very diverse. They are mainly microscopic in nature and are also known to possess a single cell. That is they are unicellular.
This unicellular attribute is the primary or main differentiating feature between protists and other eukarya.
The correct spelling for the term that means pertaining to the tail is:_____.a) cadal.
b) cadaul.
c) caudle.
d) caudal.
The answer is D. Caudal
In _____________ selection, individuals with both extreme forms of a trait are at a selective advantage.
Answer:
disruptive/diversifying selection
Explanation:
Disruptive (also known as diversifying) selection is a type of natural selection where extreme phenotypic values are more favored rather than intermediate phenotypes. The disruptive selection favors the survivance and reproduction of organisms with extreme phenotypic traits, and in turn impairs the reproduction of organisms with intermediate traits, thereby changing the allele frequencies in the population in order to favor extreme values. An example of disruptive selection is the beak size of Galapagos finches, where extreme phenotypes of this trait have shown to be adaptive according to the type of food found in each island.
An organism composed of one or more cells that contain internal membrane-bound structures ; usually multicellular.
Answer:
its called multicelluar organism
Explanation:
Fish breathe underwater through gills that remove dissolved oxygen from the water. What phenomenon allows oxygen to dissolve in water
Answer:
The correct answer is "aeration".
Explanation:
Fish depend on the presence of dissolved oxygen in the water to breathe, because they take oxygen from water in a mechanism known as countercurrent exchange. Oxygen gets dissolved in water when winds stirs it in a phenomenon known as aeration. Aeration brings water and oxygen in direct contact, and not only is responsible of producing dissolved oxygen in water, but also increases its palpability by removing its flat taste.
true or false evolution but natural selection leads to structures that are perfectly functional solutions
ANSWER: TRUE
natural selection does lead to perfectly functional solutions.
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8
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1. Give two other names for AB.
2. Name three points that are collinear.
3. Give another name for plane F.
4. Name a point that is not coplanar with A, B, and C.
5. Give another name for CD.
6. Name three rays with endpoint B.
7. Name a pair of opposite rays.
8. Give another name for CD.
Problem 1
Two other names for line AB are
Line BALine hThe order of the letters doesn't matter which is why AB is the same as BA. Line h is another name since the h is attached to the line.
======================================
Problem 2
Three points that are collinear are: C, B, and D
Those three points all fall along the same vertical line (line g)
=====================================
Problem 3
Pick any three points you want in plane F as long as those points do not fall on the same line. The only three points we can pick are A, B and E. Those points are not all on the same line. They uniquely define plane F. So we can say "plane ABE" in place of "plane F". In this case, the order of the lettering does not matter.
======================================
Problem 4
Point E is not coplanar with A, B and C. Plane ABC is a vertical wall (of sorts) while point E is on the floor (plane F) away from the wall ABC. In contrast, a point like D is on plane ABC because line g goes through this plane as well.
=======================================
Problem 5
Line CD can be written as
line CBline BCline DCline BDany of those are valid. All we need are two points that are on line CD. The order doesn't matter.
=======================================
Problem 6
Start with point B. Then add on a letter that forms a ray or half a line. We could write
ray BCray BAray BDWe cannot write ray BE since there is no line connecting the two points. Also, when it comes to naming rays, the order does matter. The first point is where we start and the second point is where the ray aims and goes on forever toward. Something like ray BC is not the same as ray CB (since the endpoint here is C instead of B).
=======================================
Problem 7
One pair of opposite rays is BC and BD. They point in completely different directions and both fall on along the same straight line extended out infinitely in both directions. Put another way: gluing together the endpoints of opposite rays forms a line.
=======================================
Problem 8
This seems to be a repeat of problem 5. I'm not sure if this is a typo or not.
The ultimate source of heat in the process of global warming is
A) the burning of fossil fuels
B) carbon dioxide
C) the sun
D) greenhouse gases
It’s either C or D.
Answer: I think it's D. Let me know if it's right.
If a mutation in DNA caused a new amino acid sequence to occur, what might happen to the subsequent protein?
The amino acids contain R groups that interact with each other creating a three - dimensional structure. This higher - order structure decides the biological activity of that protein. if the wrong amino acid joins the polypeptide chain the higher - order structure will change, effecting the functioning of the protein.This will lead to many diseases such as sickle cell anemia is most common.
I need these fast only answer if you no them, please
Answer:
Explanation:
1. Interstellar Medium
2. around 13 billion years
3.telescope
4. the inner planets have low gravity and cannot attract rocks to their atmosphere.
5. oceans, groundwater, freshwater.
6. Solar Nebula, Circumstellar Disks, Planetesimals, Terrestrial Planets (Inner
Solar System), Gas Giants (Outer Solar System)
7. Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune
8. its a circular loop around the sun.
9. The carbon dioxide traps most of the heat from the Sun.
10. saturn
11. molten heavy-metal core, few moons and topological features such as valleys, volcanoes and craters.
12. no solid surfaces and are essentially large balls of gas composed primarily of hydrogen and helium.
13. eight
14. , new moon, waxing crescent, first quarter, waxing gibbous, full moon, waning gibbous, third quarter and waning crescent
15. the Moon has phases because it orbits Earth, which causes the portion we see illuminated to change.
16. the earth
17.total lunar
18.Waxing Gibbous Moon.
19. synchronous rotation.
20.Turbulent Beginnings.
21. closest: perigee farthest: apogee
22.the Moon is lined up between the Earth and the Sun. We see the side of the Moon that is not being lit by the Sun
23. where its facing
25. Lithosphere, Asthenosphere, Mesosphere, Outer Core, and Inner Core. (put these down starting with inncer core to lithosphere.)
26. metal—specifically, iron and nickel
27.Earth is the only planet in the solar system with an atmosphere that can sustain life.
28. Continental crust
29. mantle
30. temperatures increase exponentially.
good luck :)
what does it mean that a hypothesis must be "falsiable" in order to be valid
Answer: A falsifiable Hypothesis is able to be proven wrong from one observation
Explanation:
water has an unusually high heat of vaporization (-40+kj/mol), allowing it to be used for evaporative cooling. what do you think would happen if a different compound was used for evaporative cooling - for example, methane (-8kj/mol)
Answer:
A lesser amount of heat will be drawn up from the mass to be cooled per unit mole of the new liquid vaporized, compared to the amount of heat that will be drawn by vaporizing a unit mole of water. For the case of methane, five mole of methane needs to be vaporized to get the same cooling effect of a mole of water.
Explanation:
For a liquid like water to vaporize, it must draw a certain amount of energy from the surrounding in order for some of its molecules to gain enough energy to break out of the surface of the liquid as gas. If the heat of vaporization of water is about -40 kJ/mol, it means that for a mole of water to change from liquid to gas, it must draw up 40 kJ worth of heat from its surrounding. The effect is that the surrounding mass losses 40 kJ worth of heat, and cools down. If we should now use a new liquid, say methane with heat of vaporization of about -8kJ/mol, five moles of methane needs to be vaporized to get the same cooling effect of vaporizing a mole of water; since the heat that will be drawn by a mole of the methane is just bout 8 kJ.
What kind of substances tend to be acidic and what kind of substances tend to be alkaline?
Answer:
Substances
0 (most acidic) Hydrochloric acid (HCl)
1 Stomach acid
2 Lemon juice
3 Cola, beer, vinegar.
Examples of alkaline are:sodium hydroxide, potassium hydroxide, calcium hydroxide, magnesium hydroxide etc
This activity requires that you sort cell structures according to whether they are found in prokaryotic cells or eukaryotic cells. Drag each of the following terms into the appropriate box, indicating whether it applies to prokaryotic cells or eukaryotic cells.
1. Lysosomes
2. Flagella that rotate, composed of flagellin
3. Endoplasmic reticulum
4. Peptidoglycan-containing cell wall
5. Cellulose or chitin-containing cell wall
6. Golgi apparatus
7. Mitochondria
8. Flagella that wave, composed of microtubules
9. Circular chromosome, not enclosed within a nuclear envelope
10. Linear chromosomes enclosed within a nuclear envelope
Prokaryotic cells Eukaryotic cells
Explanation:
PROKARYOTIC EUKARYOTIC
1.circular chromosomes 1. mitochondria
2.flagella that rotates 2.endoplasmic reticulum
3.peptidoglycan:cell wall3.cellulose/chitin cell
wall
4.linear chromosomes
5.flagella that whips
6.golgi apparatus
7. lysosomes
N.T: Prokaryotic organisms have a simple cell structure an example is bacteria, it has a cell wall,flagella for movement in some ,free chromosomes ,slime capsules in some cases and cytoplasm ,while eukaryotic organisms have a complex cell structure and they have an organised nucleus.
What is the advantage to the sphinx moth Xanthopan morgani by having an 8-inch long tongue?
A) It is used to attract mates through sexual selection
B) It can only pollinate one type of flower
C) It makes flying more efficient
D) It can be used to capture other flying insects for food
E) It can reach nectar that no other pollinator can reach
Answer:
The correct answer would be : option E.
Explanation:
Sphinx moth Xanthopan morganai is montypic genus of sphinx moth which has only one species which gives it as a name of morgan's sphinx moth found in east Africa and Madagascar.
This species of moth have a 8 inch long tongue which is characteristic feature of the species. The 8 inch long tongue gives them advantage in reaching to the nectar where no other pollinator can reach to their.
Thus, The correct answer would be : option E.
Reasons why some people might have higher energy then others.
Answer:
it depends on the nutrition present in food of the person but scientifically to say those people who got hyperthyroid seems more energetic I hope this may help u
Which of the following is not a true statement regarding the genetic code?
A. The genetic code is nearly universal, with only a few minor exceptions.
B. The genetic code is nonoverlapping.
C. The genetic code is degenerate.
D. The genetic code is triplet-based.
E. Each codon represents a different amino acid.
Answer:
E. Each codon represents a different amino acid.
Explanation:
The genetic code refers to the set of rules guiding the translation of nucleotide bases in DNA or RNA into an amino acid sequence (proteins). The genetic code contains all the codons in the genome, which is a group of three nucleotide base (triplet-based). Each codon species a particular amino acid, however, more than one codon can code for a particular amino acid. This characteristics of the genetic code is called DEGENERACY.
The genetic code is said to be nearly universal because the same codon encodes the same amino acid in almost all living organisms with only few exceptions. The nonoverlapping nature of the genetic code refers to the fact the three bases of a codon are read independently from the bases of another codon i.e. codons do not overlap.
A codon represents one amino acid but more than one codon can represent the same amino acid. Hence, option E is untrue
- A housefly lays 100 eggs and each egg hatches into a
larva.
Is asexual or sexual reproduction
Answer:
It's asexual or sexual reproduction.
Answer:
sexual reproduction
Explanation:
Houseflies need a partner to lay eggs. The eggs do not come from the sky.