Answer:
this happens when it freezes
Explanation:
When water freezes, its molecules get arranged in a crystalline structure, thereby attaining a defined shape. This crystalline structure is less dense, and since there are gaps between individual molecules in the structure, the overall volume increases and water expands
Answer:
Water expands as it freezes because water molecules are very loosely bound. They are arranged in a hexagonal pattern inside of the ice. As the temperature lowers, the molecules move slower, which causes them to get closer together.
Explanation:
50 points + brainliest to the best answer
What explanation can you offer for why the types of E. coli found on this surface would change over several months’ period
(DO NOT DO PROBLEM 8)
Answer:
if i am reading the question right, The selection leading to changes in the E. coli variance is an example of artificial selection because humans are treating the bacteria with triclosan
Explanation:
What dna bases are allowed to connect with one another?.
Answer:
Adenine always binds to thymine.
Explanation:
Hope this helps, God bless!
if both parents are heterozygous for both traits what are the expected phenotypes of their offspring
Answer:
9:3:3:1
Explanation: If both are heterozygous for both traits in a dihybrid cross, the phenotypic ratio will be 9:3:3:1.
Why is the cheetah gene pool small today?
When a natural disaster dropped their total world population down to less than seven individual cheetahs.
True or False. Mechanical weathering is the movement of rock particles by wind, water, or ice. Explain.
Answer:
True !
Explanation:
By definition, mechanical weathering is the movement of rock particles by wind, water, ice or gravity.
What does it tell us when some genes are highly expressed in healthy cells but not expressed in cancer cells
Answer:
A red spot means that the gene is expressed in cancer cells but not expressed in normal cells. This gene may be involved in causing colon cancer. A yellow spot mean that the gene is expressed in both normal and cancer cells
Explanation:
what feature listed not part of the groundwater system?
A-confined water
B-underwater spring
C-lake
Answer: Lake
Explanation:
Most nutrients are absorbed into the bloodstream via the liver and then directed to the liver, which rids the blood of toxins. This nutrient-rich blood goes to the heart, through the lungs, and then back through the :________.
i. out to the body cells.
ii. carry blood away from the heart to the cells, and
iii. carry blood back to the heart.
Explanation:
I'm thinking the pulmonary artery where blood is oxygenated, the o2 travels thru blood along with h20, iron, nutrients 2 regenerate cells, then back thru the same cycle to the heart..
your answer is (ii).
EARTH SPACE SCIENCE but they didn't have that option
how to make a causal loop diagram on the jurassic - triassic extinction
Answer:
\frac{y}{y} - 5 + \frac{1}{y} + 8
y
y
−5+
y
1
+8
→(1 - 5) + \frac{1}{y} + 8(1−5)+
y
1
+8
→-4 = \frac{ - 4}{1} = \frac{ - 4 \: • \: y}{y}−4=
1
−4
=
y
−4•y
→\frac{ - 4 \: • \: y + 1}{y} = \frac{1 - 4y}{y}
y
−4•y+1
=
y
1−4y
→\frac{(1 - 4y)}{y} + 8
y
(1−4y)
+8
→8 = \frac{8}{1} = \frac{8 \: • \: y}{y}8=
1
8
=
y
8•y
→\frac{(1 - 4y) + 8 \: • \: y}{y} = \frac{4y + 1}{y}
y
(1−4y)+8•y
=
y
4y+1
→\frac{4y + 1}{y}
y
4y+1
Glucose is broken down in the chemical processes of aerobic respiration.
Which row of the table below shows the correct products of this breakdown?
[tex]\bold{\huge{\purple{\underline{ Answer }}}}[/tex]
Aerobic respiration :- Aerobic respiration is process of respiration in which complete oxidation of glucose takes place in the presence of oxygen
That is,
Aerobic respiration is takes place in four stages :-
GlycolysisThe link reaction The Krebs cycle Oxidative phosphorylationIn aerobic respiration, Glucose with 6 carbon atoms broken into 2 pyruvic acid each with 3 carbon atom and produces water + CO2 + energy.
Whereas,Anaerobic respiration :- is the process of respiration in which incomplete oxidation of glucose takes place in the absence of oxygen
The end products of glucose in anaerobic respiration is
In human muscles, Lactic acid + Energy In yeast, Ethanol + CO2 + EnergyHence, Option D is the correct answer.
Breath-testing devices measure the ratio of concentration of alcohol in the ________to the concentration in the________
a. Breath, stomach
b. Blood, stomach
c. Breath, blood
d. Blood, vein
Fifty years ago, genetic testing did not exist. If we wanted to prove whether someone was related, our best option was blood typing. Now, Elvis Presley was a wildly famous musician who died in 1977. Before his death, it was rumored he fathered a child with someone other than his wife whilst they were living in Hawaii. Prior to Elvis's death, this same woman would take her son to visit him there at least once a year. She also had blood tests done to prove Elvis was the father and tests showed it was possible. Her grandson is alive now, and looks very much like Elvis as you can see below. The grandson is on the left and Elvis is on the right. They have the same O+ blood type, sing beautifully, and both play the guitar. If you were using blood type to determine whether Elvis (whose blood type is O+) was the father of someone, which of these blood types would not have been possible for any of his children?
Type A -
Type B +
Type O-
Type AB+
The first article that you’ll analyze is from the National Oceanic and Atmospheric Administration (NOAA). Read the article and list three conclusions the author draws about human involvement in climate change. In two to three sentences, describe the evidence cited that explains each conclusion.
The first article that you’ll analyze is from the National Oceanic and Atmospheric Administration (NOAA). Read the article and list three conclusions the author draws about human involvement in climate change. In two to three sentences, describe the evidence cited that explains each conclusion.
The first article that you’ll analyze is from the National Oceanic and Atmospheric Administration (NOAA). Read the article and list three conclusions the author draws about human involvement in climate change. In two to three sentences, describe the evidence cited that explains each conclusion.
The three conclusions drawn about human involvement in climate change include:
Deforestation UrbanizationBurning of fossil fuel.What is Climate change?This refers to the long-term shifts in temperatures and weather patterns in which human activity plays a major role.
The activities mentioned above have led to an increase in the the amount of greenhouse gases in the atmosphere thereby leading to global warming nand change in climate patterns.
Read more about Climate change here https://brainly.com/question/24316365
The article explains what historians and economists call the "Great Recession." It discusses the measurements shown in the table--GDP and unemployment--as well as some other economic indicators from that period. It cites data including that GDP fell 4.3%, unemployment peaked at 10%, and home prices dropped by 30% during this time of economic downturn. According to the article, the government intervened to try to help regulate the recession by creating a stimulus program that involved government spending and tax cuts.
(sample answer on Edmentum)
Which mineral is a secondary nutrient for plants?
A.nitrogen
B. phosphorus
C. potassium
D. calcium
Answer:
Hello!
A mineral that is a secondary nutrient for plants is calcium.
Hope this helps!
Which elements are common to all four of the base nucleotides found in DNA? Select all that apply.
nitrogen
sodium
carbon
iron
Explanation:
The nitrogenous bases of nucleotides are organic (carbon-based) molecules made up of nitrogen-containing ring structures. Why is it called a base? Each nucleotide in DNA contains one of four possible nitrogenous bases: adenine (A), guanine (G) cytosine (C), and thymine (T)
Answer:
nitrogen, carbon
Explanation:
DNA nucleotide consists of a phosphate group, deoxyribose sugar and one of the 4 possible bases- adenine, guanine, cytosine and thymine.
The elements that are found in four of the bases are carbon, nitrogen and hydrogen.
Base pairing occurs between a purine and a pyrimidine. Purines are fused double ring structures and can be adenine or guanine, while pyrimidines are single ring structures and can be cytosine and thymine in the case of DNA.
What happens to cells when they undergo differentiation?.
Answer:
It causes deceases.
Explanation:
The process through which a cell transforms from one cell type to another is known as cellular differentiation. In most cases, the cell transforms into a more specialized form. As a multicellular organism develops from a basic zygote to a complex system of tissues and cell types, it undergoes many stages of differentiation.
~
Hope this helps!
What is a facilitated diffusion?
What does it mean for a trait, such as light skin coloration, to be under negative selection in equatorial Africa? Relate negative selective pressure to what we know about MC1R allele diversity among African populations.
It means that there is selection against that trait.
Hope this helps,
- ROR
A major function of the large intestine is to absorb.
Answer:
yes to absorb extra water from food
Explanation:
How can a shipwreck that is left in place on the ocean floor benefit marine life?.
Answer:
Nutrition and Shelter
Explanation:
the remaining fossils and foods can be used as nutrition for algae and fish living in that area. as well as the shelter used for fish to hide and reproduce/rest/cool down.
Answer:
I got you
Explanation: How can a shipwreck that is left in place on the ocean floor benefit marine life - The fossil fuel in its engines can become food for algae and fish. Its interior can release oxygen from the surface to the deep ocean. It can provide a hard surface where organisms can attach and live. Also, the wreck can become an artificial Reef and protection from predators.
Hope this helps :D
Which substance would have the highest viscosity?
a.
Liquid water
b.
Maple syrup
c.
Olive oil
d.
Solid rock
Answer:
It would be b - Maple Sryrup.
Explanation:
Viscosity is essentially the thickness and transparency of a liquid. It cannot be rock due to the fact that a rock is a solid object and not a liquid. The other answers are eliminated via the process of elimination.
What line of evidence would support a hypothesis that a newly discovered bacterium is a cyanobacterium?.
The line of evidence would support a hypothesis that a newly discovered bacterium is a cyanobacterium is it is able to form colonies and produce oxygen. Cyanobacteria generate oxigen.
What are Cyanobacteria?Cyanobacteria are a special type of bacteria capable of generating oxygen by a process called photosynthesis.
Photosynthesis is a series of reactions by which some types cells can generate oxygen and simple carbohydrates by using the energy from the sun.
Cyanobacteria are also called blue-green algae and these microorganisms are able to form colonies.
Learn more about Cyanobacteria here:
https://brainly.com/question/24805824
What would be the complimentary strand of the
following?
ATC CCG GTA
•TAG GCC CAT
•TAC CCG GTA
•ATC CCG GTA
•TAG GGC CAT
HELP PLEASE
Answer:
TAG GGC CAT
Explanation:
A always pairs with T
C always pairs with G
Answer:
TAG GCC CAT
Explanation:
C goes with G
A goes with T
The spread of the impulse through the ventricles (ventricular depolarization) is depicted on the ECG as the:
Given what we know, we can confirm that when reading an ECG, the ventricular depolarization will be depicted as the QRS complex.
What does each wave represent?In an ECG, each wave or group of waves represents a different aspect of the heartbeat. The values are as follows:
The P wave represents atrial depolarization.The QRS complex then shows ventricular depolarization.The T wave represents ventricular repolarization.Therefore, we can confirm that when reading an ECG, the ventricular depolarization will be represented by the QRS complex.
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This flower has petals in
groups of three. What type of
plant is it?
A. Monocot
B. Dicot
C. Tricot
D. Tetracot
A planet has been observed orbiting a nearby star. This star has a mass of 3. 5 solar masses, and the planet is 4. 2 AU from the star. What is the planet’s orbital period in Earth years? Round your answer to the nearest whole number. Earth years.
Planets rotate and revolve around the sun in fixed orbits and are at a specified distance from the sun. The planet's orbital period will be 4.6 years.
What is an orbital period?The time taken by the planet to complete one revolution around the sun in their fixed orbits is called the orbital period of the planet.
The period can be determined using Kepler's third law:
[tex]\rm T^{2} = \dfrac{4\pi ^{2}}{GM}\times a^{2}[/tex]
Where,
The orbital period of a planet (T) = ?Distance form sun (a) = [tex]\rm 6.28\times 10^{11} m[/tex]Gravitational constant (G) = [tex]\rm 6.67 \times 10^{-11} m^{3}kg^{-1}s^{-2}[/tex]Mass of the parent star (M) = [tex]\rm 6.96 \times 10^{30} kg[/tex]Substituting values in the above equation:
[tex]\begin{aligned}\rm T&= \sqrt{\dfrac{4\pi ^{2}}{6.67\times 10^{-11}\times 6.96\times 10^{30}}\times (6.28\times 10^{11})^{3}} \\\\&=145,128,196\;\rm seconds\end{aligned}[/tex]
Therefore, 4.6 years is the orbital period of the planet.
Learn more about Kepler's law here:
https://brainly.com/question/12473529
which best describe cancer cells
Answer:
Cancer cells don't stop growing and dividing, this uncontrolled cell growth results in the formation of a tumor. Cancer cells have more genetic changes compared to normal cells.
BRAINLIEST IF CORRECT
Which of the following are correctly balanced reactions?
Answer:
A. Mg + FeO ---> Fe + MgO
Explanation:
Just look at the numbers and check if they are equal or not. If equal, its a balanced reaction and if not, then its unbalanced reaction.
Select the correct answer from each drop-down menu.
Arya is writing a research paper about physicist Milutin Milankovitch. Help Arya complete the following paragraph of her essay.
First dropdown: tilt, length, rotational path.
Second dropdown: the same in both of the hemispheres, more extreme and hotter, milder and cooler.
Third dropdown: wobble, length, speed.
Answer:I know the first drop down is rotational path but I can't figure out the other. Sorry
Explanation:
In a lipid bilayer, where do lipids rapidly diffuse?.
Answer:
across the plasma mebrane