Answer:
A. Bacteria
Explanation:
Cells that contain a cytoskeleton, organelles surrounded by cytoplasm, nucleus surrounded by nuclear envelope, etc. are called eukaryotic cells. Animals, plants, and fungi are all made up of eukaryotic cells, but bacteria are not (they are prokaryotes).
hope this helps!
Why has society changed its view on smoking since 1960
Answer:
Ever since scientists discovered that smoking is bad for the lungs and the body in general, over time there became less and less people who do it. Even though the scientists are right, people still make the wrong choice and start smoking. Most people agree on the fact that smoking is bad for your health.
In the F2 generation of Mendel’s crosses
In the f2 generation of mendel's crosses, all plants had the dominant trait,all plants had both the dominant and recessive alleles. one in four plants had two alleles for the recessive trait.
Answer:
one in four plants had two alleles for the recessive trait.
Explanation:
Covalent modification:_____.
a. can involve the addition of phosphate groups.
b. can activate an enzyme.
c. produces modifications that can sometimes be reversed.
d. affects the activity of an enzyme by adding or removing a chemical group.
e. all of these are correct.
Answer: Option E.
All is correct.
Explanation:
A. can involve the addition of phosphate groups.
b. can activate an enzyme.
c. produces modifications that can sometimes be reversed.
d. affects the activity of an enzyme by adding or removing a chemical group.
Because Covalent modifications are enzymes catalyzed changes in the production of protein that involve the removal or addition chemical groups.
Covalent modifications can target a single or many Amino acids and it will alter their chemical properties.
Addition of phosphate group is a covalent modification because it control enzymes activity.
Covalent modification is reversible because it involves addition or removal of phosphoryl group to enzymes.
covalent attachment of another molecule can affect the activity of enzymes and many other proteins. In these occurence, the molecule that act as donor provides a functional moiety that modifies the properties of the enzyme.
how can we improve crop production
Answer:
Improve Soil, Increase Crop Yield to increase crop yield, start from the ground up. Testing soils. Plant Early, Plant Effectively. Practice Seasonal Soil Rotation
Answer: Plant Early,Practice Seasonal Soil Rotation,
Always Scout Your Fields......and soo one
Explanation: hope this helpes :)
Match the name of the greenhouse gas with one of the human activities that produces it.
carbon dioxide
industrial processes
fluorinated gases
agricultural and industrial activities
methane
production and transport of oil and natural
gas
nitrous oxide
burning fossil fuels
Answer:
carbon dioxide- burning of fossil fuels
fluorinated gases- industrial processes
methane- production and transport of oil and natural
gas
nitrous oxide- agricultural and industrial activities
Explanation:
Greenhouse gases are gaseous components that induces greenhouse effect. This means that due to their structural ability to trap heat energy in the atmosphere, they contribute to the global warming effect on the Earth. However, this greenhouse gases are produced in large amounts as a result of the day-to-day anthropogenic activities. The following are the greenhouse gases and how they are produced.
Carbondioxide (CO2)- Carbondioxide is the most common and important greenhouse gas. It is generated via natural processes like respiration but also produced when fossil fuels e.g coal, petroleum etc. are burned.
Fluorinated gases- This is another greenhouse gas caused by activities of man. Fluorinated gases are produced in industries during the production of certain products.
Methane- Methane is a gaseous hydrocarbon and the principal constituent of natural gas. Therefore, the production and transportation of oil and natural gases can lead to the escape of methane into the atmosphere.
Nitrous oxide- Nitrous oxide is an oxide of nitrogen. It is mainly produced via agricultural processes such as nitrification and denitrification or use of fertilizers etc. and also industrial actions.
Answer:answer in pic
Explanation:
A maternal condition defined by the progressive dilation and effacement of the cervix that begins after 20 weeks and before term (the 37th week of pregnancy). This condition occurs because risk factors that are known or unknown cause uterine contractions and the cervix to dilate and efface prior to the time that the fetus is considered Term or 37-41 weeks. Many known and unknown causes for the condition exist. This condition is the leading cause of morbidity and mortality of newborns.
Answer:
preeclampsia
Explanation:
Answer:
preeclampsia
Explanation:
In an organism, X, it is found to be impossible to generate loss-of-function mutants for most genes. There is an alternative method of introducing random mutations that can later be screened for the gene(s) in question. This can be accomplished by using insertions due to what genetic entities?
Answer:
Transposable elements (TE)
Explanation:
A transposon, also known as 'jumping genes', is a particular sequence of DNA that can relocate inside of the genome. It affects the genetic identity and can be made use of to either reverse a mutation or create one - it duplicates that genetic sequence. Retrotransposons is a class of TE found in viruses.
Carbonic anhydrase inhibitors cause less movement of carbonic acid toward carbon dioxide production and are used as a prophylactic treatment of altitude sickness. Altitude sickness occurs when a hiker ascends to altitudes where the density of oxygen is low. How does this decrease the symptoms of high altitude sickness?
A) The excess hydrogen ions are excreted in the urine and the resulting loss of acidity increases respiration rate.
B) The excess bicarbonate ions are excreted in the urine and the resulting loss of blood pressure increases respiration rate.
C) The excess bicarbonate ions are excreted in the urine and the resulting increase in blood acidity leads to an increase in ventilation.
D) The excess bicarbonate ions in the blood increase the affinity of hemoglobin for oxygen.
Answer:
The excess bicarbonate ions are excreted in the urine and the resulting increase in blood acidity leads to an increase in ventilation.
Explanation:
An example of positive feedback loop would be: A. the release of glucagon in response to low blood sugar B. all of the above C. the release of a hormone in response to a single stimulus D. the release of oxytocin in response to stretching of the uterus
D. The release of oxytocin in response to stretching of the uterus.
Explanation:
There are two types of feedback loops, negative and positive.
Negative feedback loops' main goal is to maintain homeostasis, or equilibrium within the body. When there is a stimulus, the negative feedback loop will try to make the output less than it is, to make homeostasis equal again. An example of this would be regulating blood sugar. If your blood sugar levels are low, your body will release glucagon to make them higher, that is a negative feedback loop.
Positive feedback loops' main goal is to make the reactions go by more quickly, it makes the equilibrium unstable while accelerating the reaction. An example of this would be releasing chemicals in the body such as oxytocin, during childbirth to make it less painful and to speed up the process.
Consider this animal cell.
The organelles in an animal cell are labeled. Part F is a network of hollow tubes, flattened sheets, and round sacs.
What is the function of the organelles that are labeled F?
to temporarily store water, waste products, food, and other cellular material
to produce proteins for the cell
to move proteins and other substances through the cell
to contain digestive enzymes that break down waste material and debris in the cell
If im not wrong, its golgi body.
Golgy body giving enzyme to append protein to glycosaminoglycans,
it can store water,
produce protein and transport it or stored in the vesicles,
it also have haltened sacs.
Im sorry if im wrong
Answer: c, the rough and smooth ER
Explanation:
moves things through the cell
dromedary, camel, alpaca, vicuña, guanaco, llama, which species are most similar to each other? what is this about?
Answer:
Alpaca and llama are the most similar
Explanation:
An alpaca is a mix of a donkey and llama so alpaca and llama are the most similar.
Which is an example of an idiosyncratic reaction?
a. Nausea after taking an antibiotic agent
b. Excitement and agitation after taking a sedative
c. Increased clotting time after taking heparin
d. Sedation after taking a sleeping pill
Answer ; A
Idiosyncratic reactions are unpredictable and not explained by the pharmacologic properties of the drug. An example is the individual with infectious mononucleosis who develops a rash when given ampicillin.
Definition. Idiosyncratic drug reactions are adverse drug reactions that do not occur in most patients at any dose and do not involve the known pharmacological properties of the drug.
hope this helpWhere do I can find a white deer in far cry primal
The countercurrent multiplier is a system by which the:______.
a. nephron loop multiplies the concentration of salts in the interstitial fluid of the kidney medulla.
b. nephron loop dilutes the concentration of solutes in the tubular fluid at its hairpin turn.
c. vasa recta secretes multiple amounts of metabolic wastes against their concentration gradient.
d. vasa recta becomes more concentrated with nitrogenous wastes than the urine.
Answer: Option A.
nephron loop multiplies the concentration of salts in the interstitial fluid of the kidney medulla.
Explanation:
countercurrent multiplier is a system that utilize energy that create osmotic gradients and enable reabsorption of water thereby increase concentration of urine. The countercurrent multiplier uses electrolyte pumps there by making the nephron loop increase the concentration of salts in the interstitial fluid of the kidney medulla because it allows the nephron to reabsorb alot of water and and increase the concentration of urine for excretion while at the same time using as little energy as possible.
A series of strong storms opened a stream channel between two lakes. The western lake contains a large, diverse population of a species of minnow (these are small fish). The eastern lake has never been populated by fish. When the channel opened, a small group of fish migrated to the eastern lake. Soon after, the stream channel dried up and was never opened again. The fish in the eastern lake thrived and continued to reproduce, building a large population over time. Compared with the fish in the western lake, what characteristics would you expect the population in the eastern lake to exhibit
Answer:
Same characteristics of fishes are present.
Explanation:
Same characteristics of fishes are present in both western and eastern lakes because in eastern lake the present fish species were migrated from the western species so the characteristics of fish population will be same. If the fishes that is present in western lake are small in size so it has same size in eastern lake. Their eating behavior and other characteristic show resemblance with the fishes present in western lake.
In garden peas, the yellow seed trait is dominant over green seeds. Also, the round seed trait is dominant over the wrinkled-seed trait. These genes are on separate chromosomes. Suppose that two plants that are heterozygous for both traits are crossed and 720 offspring are produced. About how many progeny will be yellow with round seeds
Answer:
405 individuals will be yellow and round seeded.
Explanation:
Available data:
the yellow seed trait is dominant over green seedsround seed trait is dominant over the wrinkled-seed traitThese genes are on separate chromosomesLet´s name the seed color genes Y, and the seed shape gene R
Y is the dominant allele for seed color expressing yellowy is the recessive allele for seed color expressing greenR is the dominant allele for seed shape expressing roundr is the recessive allele for seed shape expressing wrinkledCross: between two plants that are heterozygous for both traits
Parental) Yy Rr x Yy Rr
Gametes) YR yR Yr yr YR yR Yr yr
Punnet Square) YR yR Yr yr
YR YYRR YyRR YYRr YyRr
yR YyRR yyRR YyRr yyRr
Yr YYRr YyRr YYrr Yyrr
yr YyRr yyRr Yyrr yyrr
F1) 720 individuals
9/16 yellow and round seeded individuals, Y-R-
3/16 green and round seeded individuals, yyR-
3/16 yellow and wrinkle seeded individuals, Y-rr
1/16 green and wrinkle seeded individuals, yyrr
Note: the "-" symbol in the phenotypes means that there it could be either a dominant or recessive allele.
If 720 is the total number of individuals in the F1, then:
16 possible genotypes ---------- 100% of the progeny -------- 720 individuals
9 yellow and rounded----------- 56.25% ----------------------------405 individuals
3 green and rounded-------------18.75%------------------------------135 individuals
3 yellow and wrinkled-------------18.75%------------------------------135 individuals
1 green and wrinkled--------------6.25%-------------------------------45 individuals
Which of these conclusions is most likely correct about the two pairs of atoms?
Answer:
D. Carbon and oxygen form covalent bonds but sodium and chlorine form ionic bonds
Explanation:
Chemical bonds form between the atoms of elements. The types of chemical bondings that form are: covalent bond, ionic bond and more. Covalent bonds are bonds formed when atoms share valence electrons rather than transfer it. The shared bonding is in such a way that the outermost shell of both atoms are filled. This is the case of carbon and oxygen atoms in the diagram.
On the other hand, ionic bonding involves the transfer of electrons from one atom to another in order to form electrically charged ions that are bound to one another. This is the case of sodium atom, which has one valence electron in its outermost shell and transfers it to chlorine atom, which has seven electrons in its outermost shell. The sodium atom becomes a positively charged ion (+1) while the chlorine atom becomes negatively charged (-1).
PLEASE HELP ME I WILL MAKE YOU BRAINLIEST!!!!!!! Need help with number 31!!
Explanation:
A is 6H2O
B is C6H12O6
C is 6O2
A person has eaten the following vegetables over the past week: carrots, pinto beans, corn, cauliflower, coleslaw, and potatoes. Which of the following vegetables should he eat to be sure that he has included vegetables from each of the subgroups for the week? a. Iceberg lettuce b. Green peas c. Broccoli d. Eggplant e. Mushrooms
Answer:
B
Explanation:
Green Peas
Answer:
Green plants broccoli Eggplant
advantages of cutting crops with sickle?
Answer:
The advantages of cutting crops with a sickle is that it's very environmental friendly. Sickle doesn't produce harmful chemicals like nitrate and biogas that can cause pollution to the environment or to the crops. However, sickle cutting is a very tremendous work.
Explanation:
Which main type of sedimentary rock forms from dead plant and animal material?
Answer:
limestone, chert, dolostone, gypsum, halite (rock salt), diatomite, and chalk.
hope this helps!
Explanation:
Answer:
Letter C: Organic
Explanation:
Took the test and got it right :) Hope this helps!
The red pigment in erythrocytes is __,which transports oxygen.
Answer:
The answer is Haemoglobin.
Explanation:
Haemoglobin is a red pigment in red blood cell is used to transport oxygen.
Cereals and legumes are complementary in the diet because Group of answer choices Cereals counteract the antinutritional factors in legumes A diet combining legumes and cereals will have a good balance of essential amino acids Cereals are high in lysine Legumes are high in cysteine and methionine
Answer:
A diet combining legumes and cereals will have a good balance of essential amino acids
Explanation:
Cereals are grains that are rich in vitamins, carbohydrates, protein and other essential nutrients, they include wheat, rice, sorghum etc. Legumes include a wide range of seeds, fruits, nuts, vegetables that are rich in proteins, carbohydrates and other nutrients, examples include peas, beans, lentils etc.
Cereals and legumes are referred to as staple foods, they are usually used to complement each other because combining them will result in a good balance of essential amino acids. In cereals, lysine is a limiting amino acid but is usually in high amounts in legumes. However, in legumes cysteine, trypthophan and methionine are the limiting amino acids but are found in cereals. Therefore, this makes legumes and cereals complementary in the diet as it significantly increases the protein quality of the diet.
can someone help plz!?
Answer:
Biotic factors and abiotic factors, plant and light energy, herbivores, heterotrophs, omnivores, carnivores, primary consumer, decomposers and tertiary consumers.
Explanation:
Both biotic and abiotic factors are interacting with each other in an ecosystem. Plants use light energy from the sun to produce their own food. Herbivores are the organisms that feed on producers (plants). Heterotrophs are those organisms which are unable to make their own food. Omnivores are the organisms that eat both plants and animals. Carnivores feed on animals only. Primary consumers are the consumer which feed on plants. Decomposers helps in the breakdown of dead bodies of plants and animals. Tertiary consumers feed on secondary consumer.
The goal of a statement of purpose is:
Answer:
Explanation, answer, persuade
Explanation:
a statement is a sentence with a period at the end of the sentence.
you can answer, and explain without using a question mark, or an exclamation mark
and of course, you can persuade with a period, question mark, or with an exclamation mark
( plz mark me as brainliest, that would be most appreiciated! )
Describe under what conditions you might expect your cells to undergo anaerobic respiration. Be specific as to why these conditions would prevent normal cellular respiration to proceed. What product is produced under anaerobic conditions and is it harmful?
Answer:
Explanation:
Cells start undergoing anaerobic respiration when energy requirement is high and there is not sufficient availability of oxygen to produce required energy .
For example , when we we run fast , energy requirement by muscle cell is high but available oxygen level is not sufficient so cells start anaerobic respiration which produces lactic acid and this product creates tire-ness.
For normal respiration , oxygen is required . If there is lack of oxygen , aerobic respiration is not possible .
In yeast cells , alcohol is produced by anaerobic respiration. Alcohol is not harmful . In muscle cells , lactic acid is produced which is harmful .
Although there is a one in 4 million chance that all of the chromosomes in one parent could come entirely from one grandparent, chances are high that grandchildren will receive a mix of chromosomes from both maternal and both paternal grandparents. True or False
Answer:
it is true 10000% sure
hope i helped
-lvr
Which phrase describes a feature of an earthquake’s epicenter?
starting point of an earthquake
place around the center of an earthquake
region directly above the focus
point about 100 kilometers deep in the lithosphere
Answer:
It is answer c
Explanation:
i know this because The epicenter is directly above the earthquake's hypocenter (also called the focus)
The phrase which describes a feature of an earthquake’s epicenter is: C. region directly above the focus.
An earthquake can be defined as a sudden, natural shaking of the ground, as a result of movements within the Earth's crust and upper mantle (lithosphere) that typically creates seismic waves.
An epicenter is the point on the surface of planet Earth, which is perpendicular to the hypocenter (focus) and it indicates where the seismic waves from an earthquake are most intense.
On a map, an earthquake’s epicenter is located at the point where the three (3) circles intersect because earthquake are generally shallow.
Read more: https://brainly.com/question/21620194
The graph shows the frequency of two alleles for a genetic trait in a population. A graph entitled Frequency of 2 Alleles in a Population has generation number on the horizontal axis, and frequency on the vertical axis, from 0 to 1. Allele Upper A has a 0.5 frequency at generations 1, 2, 3 and 4. It has a 0.45 frequency at generation 5. Allele a has a 0.5 frequency from Generations 1 through 4 and then has a frequency of 0.55 at generation 5. Which question is a biologist most likely to ask after seeing this graph? Did the observer make the wrong observations in generation 5? How many individuals were observed in each generation? Is there a theory that explains the results in the graph? Will the frequency of the alleles in this population change again?
Answer:
C. Is there a theory that explains the results in the graph?Explanation:
i tack test
One primary advantage of light microscopy over electron microscopy is that ________. light microscopy provides higher contrast than electron microscopy light microscopy provides for higher magnification than electron microscopy light microscopy allows the visualization of dynamic processes in living cells light microscopy provides for higher resolution than electron microscopy
Answer:
light microscopy allows the visualization of dynamic processes in living cells light
Explanation:
Light microscopy has a biggest advantage over electron microscopy because it all the visualisation or ability to observe living cells and biological activity such as the uptake of food, cell division and movement. Light microscopy can be use in-vivo staining techniques to visualise the uptake of colored pigments by the cells which cannot be observed with electron microscopy because in electron microscopy the element must be fixed, dehydrated or dead before been visualised . Electron microscope cannot observe living cells and can only observe dead or dry specimens so that electrons can pass through the specimen to be able to observe.
Light microscope has higher penetrating power than electron microscopy thus allows the visualization of dynamic processes in living cells. Therefore, option c is correct.
Microscopy is the technical field of using microscopes to view samples & objects that cannot be seen with the unaided eye.
Light microscopes can also be used to visualize dynamic processes in living cells because it has greater penetrating power than electron. Electron microscopes uses high-energy electrons that would damage the cells.
Electrons have shorter wavelength than visible light, so provide higher resolution than light microscopes.
Electrons have much a shorter wavelength than visible light, and this allows electron microscopes to produce higher-resolution images than standard light microscopes.
Therefore, option c is correct that light microscopy allows the visualization of dynamic processes in living cells.
Learn more about resolution here;
https://brainly.com/question/30584396
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The complete question is:
One primary advantage of light microscopy over electron microscopy is that
1. light microscopy provides higher contrast than electron microscopy.
2.Light microscopy provides higher resolution than electron microscopy.
3.Light microscopy allows the visualization of dynamic processes in living cells.
4.Light microscopy provides higher magnification than electron microscopy.