Answer:
D.When two chromosomes fail to separate during meiosis
Explanation:
I know this because I have three sisters with Down Syndrome
Answer asap
In what stage are humans learning essential skills like hunting, cooking and animal identification
Adult
Childhood
Adolescence
Infancy
Answer:
Adolescence
Explanation:
Given that infancy, age is the age of little children from the point of birth to about four years
Hence, this cannot be an answer.
Childhood is wrong because the childhood age is the age of 2 to 13. At such a tender age, one cannot go hunting due to fear of wild animals or have the capacity to learn to cook different food
Adult is also not correct because Adult age lies between 21 to 40 when middle age comes by. At this stage, one is expected to have at least basic skills to survive.
Therefore the correct answer is Adolescence. This is the age of 10 to 19. It is the last stage before Adulthood where one has to hone his basic and surviving skills. At this point, it is believed one has full mental capacity.
Answer:
Its Childhood don't listen to the other guy
Explanation:
I just got it right on my quiz
I NEED HELP ASAP!!!! BRAINLIEST AND 50 POINTS!!!! Cycles in nature involve the recycling of matter. Which of the following processes is a key part of the water (hydrological) cycle? a
transpiration
b
combustion
c
photosynthesis
d
decomposition
Cycles in nature involve the recycling of matter the following processes is a key part of the water (hydrological) cycle the photosynthesis.
What is the importance of water cycle?The water cycle is a critical ecological procedure that continues the share of water in the earth's ecosystem and ecosystems. The water cycle entails the cyclic motion of water from water our bodies and groundwater into the ecosystem via plants, which play a position in this cycle through photosynthesis and transpiration.
Photosynthesis in concerned withinside the water cycle as it helps transpiration and makes use of water as a reactant.
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Which fish species are the least tolerant of water pollution? Which fish species are most tolerant. how would you arrive at your conclusion?
Fishes used;
Bass
Carp
Gar
Catfish
Trout
Question 2
In this part of the experiment, you’ll prepare and test three milk solutions: milk and water, milk and lactase enzyme, and milk and heated lactase enzyme.
Prepare
Use masking tape to label the three beakers: “milk,” “lactase solution,” and “heated lactase solution.”
Measure 60 milliliters of milk in the graduated cylinder (or ¼ cup of in a measuring cup. Pour it into the beaker labeled “milk.”
In the beaker labeled “lactase solution,” add one lactase tablet and 100 milliliters (or 1/2 cup) of cool or room-temperature water. Use the stirrer to dissolve the lactase tablet in the water.
Add 100 milliliters (or 1/2 cup) of milk to the microwaveable container. Dissolve a lactase pill in the container. Put the solution in the microwave and heat it to boiling (about 2 minutes). Use oven mitts to remove the container. Pour the heated lactase solution into the beaker labeled “heated lactase solution” and let it cool.
Stay safe! Be careful while handling the boiled mixture to avoid spilling it on your hands.
Test
While you’re waiting for the lactase solution to cool, read the directions on the test strips. The test strips in the Edmentum lab kit will react to glucose within a few seconds. If you use different strips, the reaction time may vary. Now follow these steps to test the solutions. Record your data in the answer space.
Milk and water solution: Fill the first test tube one fourth full of milk. Fill the small graduated cylinder with water and gently add it to the milk in the test tube until the test tube is half full. Use the stirrer to thoroughly mix the solution. Then insert the test strip for 10 to 20 seconds. Look at the test strip, and record whether it changed color. Wash the stirrer.
Milk and lactase enzyme solution: Fill the second test tube one fourth with milk and one fourth with the lactase solution. Use the stirrer to thoroughly mix the solution. Insert the test strip for 10 to 20 seconds, and record whether it changed color. Wash the stirrer.
Milk and heated lactase enzyme solution: Fill the third test tube with one fourth milk and one fourth of the heated lactase solution. Use the stirrer to mix the solution. Insert the test strip for 10 to 20 seconds, and record whether it changed color.
Note: Keep the lactase and heated lactase solutions for the next part of the experiment.
Wash the “milk” beaker, the test tubes, and the stirrer. If you used paper cups as an alternative, throw them away.
Answer:
The bacterium should stop production of lactase.
Explanation:
This is because the E. coli bacteria can degrade lactose, but lactose is not preferred as source of fuel or energy to glucose. If glucose is present, E. coli would preferably employ it over lactose as Glucose needs little process and minimal energy to degrade when compared to lactose. Although, if lactose is the major sugar that is present, the E. coli will have no option than to employ it as it's source of fuel or energy. The formation of lactase enzyme utilizes energy, which cannot be utilised in the presence of high level glucose.
This appears to be a set of instructions for a lab experiment involving testing different milk solutions with lactase enzyme.
What is lactase enzyme?Lactase is an enzyme that breaks down lactose, a sugar found in milk and dairy products, into glucose and galactose. People who are lactose intolerant have insufficient levels of lactase, which can lead to symptoms such as bloating, gas, and diarrhea when they consume dairy products.
The experiment involves preparing three different solutions (milk and water, milk and lactase enzyme, and milk and heated lactase enzyme) and then testing each solution with a test strip to see if it changes color, indicating the presence of glucose.
The instructions also include safety precautions, such as being careful while handling the heated lactase solution. Finally, the instructions remind the reader to wash all equipment used in the experiment.
Some people may have lactose intolerance, which means that they do not produce enough lactase to break down lactose in their bodies, resulting in discomfort and digestive problems.
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Answer for brainliest answer
Mutations that occur _____ can affect offspring
1. During mitosis
2. During meiosis
3. In replicated dna
4. In body cells
Answer:
2. During meosis
Explanation:
During meosis mutations affect offsprings
Can anyone name all these parts of the microscope? please label each part with the number on the picture.
Answer:
Explanation:
what are the scientist doing incorrectly? what could they do to make their work in the lab safer? why is it important to follow these procedures? part b
Answer:
What the scientist is doing incorrectly is hitting a rock with a hammer without protective equipment and on the same table where containers with chemical or biological substances are found.
Explanation:
Biosafety is an important aspect of laboratory work. Conducting studies in rocks, trying to fracture them with the use of a hammer is an incorrect practice carried out by a scientist when he does not use protective equipment and has containers with substances on the same work table.
what could he do to make their work in the lab safer?Wear gloves, protective apron and protective eyewear.Break the rock on a work table where there are no containers that could break by accident, spilling their contents.why is it important to follow these procedures?It is important to follow these procedures because injuries to hands, body or eyes can be avoided by fracturing the rock. In addition, it prevents the breakage of containers with chemical or biological products, which could contaminate the work area or cause damage to the scientist.
1. Chantelle was given a sample of breakfast cereal to test for carbohydrates. (a) First, she decided to test the sample for glucose. Describe the test she should carry out and the results she might expect if glucose is present.
Answer:
The correct answer is - Benedict's solution for the test for glucose in food.
Explanation:
Benedict's solution is a test that is used to check if there is a presence of glucose in a food sample or not. It is possible due to the oxidation of the aldehyde present in the glucose turns to carboxylic acid in presence of the clear blue solution of sodium and copper salts or benedict's solution.
In presence of Benedict's solution the color of the sample turns yellow to orange with an increase in heat, however, the initial color of the solution is aqua blue.
Thus, the correct answer is - Benedict's solution for the test for glucose in food.
When chromosome arms "cross over" and exchange genetic information
during meiosis itis called a *
Answer:
an offspring
Explanation:
Answer:
Isn't it crossing over
it should be
Earth's outer core is made of_____.
A. solid rock
B. liquid rock
C. solid metal
D. liquid metal
Answer:
Liquid metal.
Tell me if wrong. :) Hope it helps!
Explanation:
Answer:
A) No problem
Explanation:
solid rock
FIFTEEN POINTS! What happens as plants "breathe" in carbon dioxide?
Question 1 options:
Water vapor and oxygen are released from the plant
Oxygen and water are stored in the stomata
Oxygen is stored in the stomata as water is released from the plant
Oxygen is released from plant but water is stored in the stomata
The Answer Is Number 1
HOPES THIS HELPS YOU!!!
PLEASE MARK AS BRAINLIEST???
describe the relationship between genotypes and phenotypes
Answer:
Genotype is the potential, it is the set of genes.
Phenotype is the expression of those genes, showing the dominant/ activated gene.
For example, my mother and members of her family are short with hazel eyes and dark hair.
My dad and his family are tall, with brown eyes and dark hair.
I will have genes for height that vary- short or tall. I will have genes for eyes hazel or brown.
I will have genes for hair- dark.
You don’t know, based on what i’ve told you, what my height or eye colour is. That’s my genotype.
I am tall, with hazel eyes and dark hair. That’s my phenotype.
This is really over simplified, but it should help you understand.
Genotype is the blueprint/ building plans. Phenotype is the building.
The picture below shows a land surface in a location in Florida.
Which of these most likely caused the cavities in the land surface?
shifting of tectonic plates
dissolving of rocks by groundwater
lack of water during long periods of drought
breaking up of rocks due to high temperature
Answer:
I think is B as well.. c:
Explanation:
These crevices frequently appear when a construction crew buried organic waste, including tree branches, brush, stumps, and building supplies. Thus, option B is correct.
What caused the cavities in the land surface?Rainfall that seeps through the soil absorbs carbon dioxide and combines with decomposing vegetation to produce water that is just a little acidic.
This subsurface water progressively dissolves limestone while forming a network of holes and cavities as it travels via fissures and cracks.
After a few years, the degradation of this buried waste produces a sizable underground void that is concealed by a thin layer of flora and soil.
Sinkholes can be created when water from a damaged pipe seeps through mud and rocks and erodes the ground below.
Therefore, dissolving of rocks by groundwater caused the cavities in the land surface.
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Problem 4: In guinea pigs, rough coat (R) is dominant over smooth coat (r). What is the result of a cross between two homzygous rough-coated guinea pig?
the genotypes of the parents are RR and RR
the gametes from the first parent are RR
and from the second parent RR
on the punnet square we can see that 100% of the offspring will be RR
[tex]\left[\begin{array}{ccc}RR&RR\\RR&RR\end{array}\right][/tex]
List 2 jobs of lipids in living organisms.
Answer:
Heres 3 of em cuz I dig the among us lol
they can serve as structural components of cell membranes, function as energy storehouses, and function as important signaling molecules.
Answer:
Lipids perform three primary biological function with the body; they serve as structural components of cell membranes, functions as energy storehouse, and functions as important signaling molecules
If doesn't answer your question than text me
I need the biggest help i can get.
Answer:
D is the answe
Explanation:
Hypothesis: If the type of the food available
changes, then the frequency of beak types will
change, because birds with beaks more suited
to the available food will be more successful
over time.
The data of this lab
the
hypothesis because there was a difference in bird
beak distribution
DONE
answer:
supported, when fruit was removed
explanation:
the data of this lab supported the hypothesis because there was a difference in bird beak distribution when fruit was removed
the second question:
which possible outcome below would not have supported the hypothesis?
answer:
if generation 3 had flock distributions similar to those shown in the graph below
Hypothesis has to do with the explanation that can be applied to a particular situation.
What is a hypothesis?The term hypothesis has to do with the explanation that can be applied to a particular situation. The hypothesis is often based upon a close observation.
The data is not shown here. However, the data does confirm or disprove a hypothesis as the case may be.
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Which defensive adaptation would best help a plant survive in an environment with leaf-eating animals?
A.
large fruits
B.
thick stems
C.
sharp thorns
D. colorful flowers
Answer:
C. sharp thorns
Explanation:
The plants stand still, are not very physically active, and seem to be on the menu of many animals. Precisely because they cannot win at the first sign of danger, one has developed other ways in which they can defend themselves from annoying and dangerous animals.
Some have developed long thorns that repel attackers. Some have poisons that are very strong and because of which animals do not think of trying to eat that plant, but the defense of some plants seems to be well thought out and ready for all forms of attack.
plssssss help me to answer this question.......
I will mark you brainliest (just answer it correctly) asap
Answer:
Explanation:
There are five columns here; electronic configuration (electron distribution), number of shells, valence electrons (number of electrons on the outermost shell that can participate in bond formation), period number (on the periodic table) and group number (on the periodic table).
Aluminium-13 (₁₃Al)
This means Aluminium has 13 electrons and thus will have the properties below
Electronic configuration: 1s²2s²2p⁶3s²3s¹
Number of shells: From the electronic configuration written above, Aluminium-13 has 3 shells.
Valence electrons: The number of valence electrons (as seen in the electronic configuration - for the third shell) is 3.
Period number: Aluminium is found in period 3 because it has 3 electron shells
Group number: Aluminium is found in group IIIA because it has 3 electrons in it's outermost shell.
Calcium-20 (₂₀Ca)
This calcium atom has 20 electrons and thus have the following properties.
Electronic configuration: 1s²2s²2p⁶3s²3p⁶4s²
Number of shells: As seen in the electronic configuration above, calcium-20 has 4 electron shells.
Valence electrons: As seen in the electronic configuration also, the total number of electrons/valence electrons in the outermost shell is 2.
Period number: Calcium-20 is found in period 4 of the periodic table because it has four electron shells.
Group number: Calcium-20 is found in Group IIA of the periodic table because it has 2 electrons in it's outermost shell
Tin-50 (₅₀Sn)
This tin atom has 50 electrons and hence have the following properties
Electronic configuration: [Kr] 4d¹⁰5s²5p²
Where [Kr] is the electronic configuration of krypton atom
Number of electron shell: From the electronic configuration above, Tin-50 has 5 electron shells
Number of valence electrons: From the electronic configuration also, it has 4 valence electrons.
Period number: It is found in period 5 because it has 5 electron shells
Group number It is found in Group IVA because it has 4 electrons in it's outermost shell
Barium-56 (₅₆Ba)
Electronic configuration: [Xe] 6s²
Number of shells: 6
Number of valence electrons: 2
Period number: Period 6
Group number: Group IIA
Selenium-34 (₃₄Se)
Electronic configuration: [Ar] 3d¹⁰4s²4p⁴
Number of shells: 4
Number of valence electrons: 6
Period number: Period 4
Group number: Group VIA
which best decribes how proteins form?
a. nucleic acids are linked together
b. peptides bond to nucleic acids
c. amino acids form peptide bonds
s. nucleic acids bond to amino acids
Answer:
I think its c ?
Explanation:
amino acids form with peptide bonds in order to make a chain kind of, that's the easiest way to explain that
The best description that how proteins form is amino acids form peptide bonds. Thus, option C is correct.
What are the types of amino acid?The three amino acids, lysine (Lys), arginine (Arg), and histidine (His), on the other hand, are regarded as basic amino acids. These amino acids are classified as basic because they include basic amine groups (-NH2) in their side chains that can accept a hydrogen ion (H+) from the environment. It is significant to remember that amino acids can become more basic or acidic depending on the pH of the surroundings.
Aspartic acid (Asp) and glutamic acid (Glu) are the two amino acids that are regarded as acidic amino acids. These amino acids are acidic due to the Carboxylic acid group (-COOH) in their side chains, which has the ability to donate a hydrogen ion (H+) to the environment.
Therefore, The best description that how proteins form is amino acids form peptide bonds. Thus, option C is correct.
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ATP and ADP both play a role in cellular reactions involving energy. How are these two molecules related?
A Adding a phosphate group to ADP produces ATP and releases energy.
B. ATP breaks down to produce ADP and a phosphate group, releasing energy
C. ADP breaks down to produce ATP and a phosphate group, releasing energy
D. Adding a phosphate group to ATP produces ADP and releases
Answer:
A
Explanation:
You can see it in the picture:
The molecules of ATP and ADP are related to one another in the sense that the breaking down of ATP produces ADP and a phosphate group, releasing energy. Thus, the correct option for this question is B.
What is the process of adding a phosphate group called?The process of adding a phosphate group to any organic compound such as glucose, ADP, etc. is known as phosphorylation. This process increases the catalytic activity and downstream process of cell signaling.
Eliminating one phosphate from ATP in order to convert it into ADP liberates energy. This is because breaking one phosphoanhydride bond liberates approximately 7.3kcal/mol of energy. While the addition of a phosphate group to ADP in order to produce ATP requires some utilization of energy.
Therefore, ATP breaks down to produce ADP and a phosphate group, releasing energy is a statement that represents a relation between ATP and ADP. Thus, the correct option for this question is B.
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What will most likely happen if the plankton population decreased in this ocean system?
Answer:
B since shrimp rely on plankton as a food source.
Explanation:
explain why the statement below is incorrect
plants give off carbon dioxide into the air
Answer:
plants don't give off carbon dioxide because they use carbon dioxide to make oxygen
A dinoflagellate is a microscopic organism that is very common in the ocean. It consists of a single cell and has a flagella that it uses to move. It has chromosomes that are held in a nucleus in the cell. What kingdom does this organism belong in? Explain your choice
Answer:
Usually considered algae, dinoflagellates are mostly marine plankton, but they also are common in freshwater habitats. Their populations are distributed depending on sea surface temperature, salinity, or depth.
Explanation:
In her report of an investigation, shira states that the height of a bush is 0.65 meters. Nathaniel states that the height of the same bush is 65 centemeters. How do the statements of the two students compare?
Answer:
See the answer below
Explanation:
The statements of the two students are the same, just that they used different units for the height.
100 centimeters is equivalent to 1 meter
65 centimeters would be equivalent to 65 x 1/100
= 0.65 meters
Hence, 0.65 meters and 65 centimeters are the same height but with different units.
Which term is defined as masses of rock,earth and/or debris that flow downhill.
A.tsunami
B.aftershock
C.liquefaction
D.landslide
Answer:
The term that defines masses of rock, earth and/or debris that flow downhill is landslide (option D).
Explanation:
When a landslide occurs, a certain amount of the mass of earth is detached or displaced downwards, due to the instability present in a certain area, especially when there is a slope in that land or slope .
The area that is unstable is usually in proximity to a stable ground zone, over which the slide occurs. The instability produced by the phenomenon is due to the fact that this ground has reached its maximum tangential tension.
In a landslide, the movement of rocks, debris and everything in the strip of land that slides can also be observed.
The other options are not correct because:
A. Tsunami is the term for tidal wave, which impedes the displacement of large bodies of water, like waves, that reach the continent.
B. Aftershock is the term that defines the seismic movements after an earthquake.
C. Liquefaction of the earth implies that a compact terrain loses strength and becomes semi-liquid.
if you were standing in the path of totality,what type of eclipee would you see?
Answer:no
Explanation:
Because you could be blind
Answer:
You'd see a full eclipse.
Explanation:
The path of totality is the path that the umbra of the moon's shadow takes. It's relatively thin, as it's only 70 miles across, but if you stand in the path you will experience a full solar eclipse.
Write and discuss brifely the basic application and implication areas of major branchs of psycology
Answer:
Psychology is the academic discipline concerned with the inner life (knowing, feeling and striving) and the behavior of people. It generally does this by following the scientific method, but in some cases it makes use of symbolic interpretation and critical analysis, following the example of other social sciences.
The goal of psychology is to acquire knowledge about the behavior of humans, both in their everyday environment and under special circumstances. With the emergence of the behavioral movement, the object of psychology was reduced to the outwardly observable and measurable behavior of animals humans, because the inner life would not be objectively registered by scientific observation, but only subjectively by introspection and understanding. This limitation has been reversed, among other things by the 'cognitive revolution' in psychology, by the great social importance of psychotherapy and by the connotations that the word 'psychology' evokes in everyday language use.
explain why a fresh wound on the skin bleeds more on a hot day than a cold day
Answer: This is more of a guess based on what I already know about liquid in certain temperatures but I would say it would have to be related to the blood having a harder time congealing due to the molecules moving faster because of the temperature. You probably already know that atoms move faster in higher temperatures as opposed to cooler ones, therefore the process of congealment and essentially transitioning from liquid to solid would be easier/quicker in cooler temperatures where the atoms in and around the wound would be moving slower.
Explanation:
scientists call mature ecosystem a
Answer:
A climate community
Explanation: