Answers
Related Questions
(20 points) {brainliest} pls help lol
Which type of restriction enzyme could be used to create recombinant DNA using methylated DNA?
A. Type III
B. Type I
C. Type II
D. Type IV
Answers
Answer:
Type IV
Explanation:
Question 10 (2 points)
Liquid water heats up and cools down slowly. What causes this property
Answers
a- water expands when it freezes
b- water forms hydrogen bonds
c- water is a good solvent
d- water is a non polar molecule
Answer: b- water forms hydrogen bonds
Hope this helps!
What is the atomic number of this atom?
а, b,c
08
O 13
09
. 5
0 4
Answers
oxygen number 8
13 is aluminum
09 is fluorine
05 is boron
4 beryllium
Hilton confessed to killing 7 people.
Answers
Answer: Hilton Confessed To Killing 7 People. He Stated That He Didn't Care About Those People He Told The Police That He Is Indifferent And He Did Not Feel Any Quilt Or Remorse For What He Did. ... His Ex-wife Told The Police That She Believed He Would Do Something So Terrible.
Explanation:
3
Based on the thin layer of sediment on his flooded farm,
James Hutton concluded that strata:
A Are made of large rocks
B
Settle in vertical layers
C
Are formed by catastrophes like floods and earthquakes
D
Take many thousands of years to form
Answers
Answer:
D. Take many thousands of years to form
Explanation:
James Hutton discovered thin layers of sediments on his flooded farm and he concluded that strata was part of the earth surface in the past and thus takes many thousands of years to form.
This led to the principle of uniformitarianism which states that the geologic processes now are the same with the ones in the past.
Blood, muscle, and bone cells are examples of _____.
plant cells
specialized cells
organs
tissues
Answers
Answer:
specialized cells
Explanation:
All of those cells are types of specialized cells. They are cell specifically designed for a specific job.
Which of the following diseases is always caused by a virus?
A.
athlete's foot
B.
AIDS
C.
Down's syndrome
D.
cancer
Answers
Answer:
Cancer
Explanation
Answer:
B. AIDS
Explanation:
Why are some reflexes involuntary?
Answers
Answer:
A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain.
Answer:
If you are talking about reflexes in the body
Explanation: Some functions are involuntarily performed, such as breathing, digestion, heart beating, eye reflexes, etc., but some involuntary actions have voluntary control to a certain extent – examples are breathing, salivation, deglutition (swallowing), defecation, micturition (urination) and others.
The Z-scheme is the way in which electrons, excited with the energy of absorbed light, are passed from one molecule to another in the light reactions. It involves many components and builds up a proton gradient.
If you extracted some cells with an organic solvent, what would the solvent contain the MOST of?
A. chlorophyll
B. ATP
C. glucose
D. hydrogen ions
Answers
Living things need to maintain their internal environment . This is known as homeostasis What role does homeostasis play in controlling the rate of chemical reactions in our bodies ?
Answers
Answer:
Homeostasis is the tendency to resist change in order to maintain a stable, relatively constant internal environment. Homeostasis typically involves negative feedback loops that counteract changes of various properties from their target values, known as set points.
Which of the following biological processes releases oxygen into the atmosphere?
Answers
Answer:
photosynthesis
Explanation:
wcogo (gocow backwards)
water+carbon dioxide->glucose+oxygen
An A/a; B/b dihybrid is testcrossed, and about ¾ of the progeny phenotypically resembles the dihybrid parent, while ¼ resembles the tester parent. If the dihybrid parent was selfed, what would be the expected phenotypic ratio in the progeny?
a. 9:3:4
b.12:3:1
c. 9:3:3:1
d. 9:7
f. 15:1
e.13:3
Answers
Answer:
The expected phenotypic ratio in the population will be 15:1
Explanation:
Due to technical problems, you will find the complete explanation in the attached files.
Sound quality can be divided
Answers
To avoid this, you should ensure that both devices connected to the split signal are similar - such as 2 pairs of headphones, 2 recorder inputs, and so on. When you place 2 devices with wildly differing load impedances on a splitter is when you’ll encounter problems - such as headphones on one split and a guitar amp input on the other.
To get around this, you can use either a distribution amplifier (D.A.) or a transformer balanced/isolated splitter - which will work over a larger range of load impedances, typically. Depends on the quality of the splitter and the exact signal path. If you’re using the splitter to hook two things into one input, and you’re using quality connectors, you probably won’t lose much quality. There can be an increase in impedance of the cable due to the imperfect continuity of the physical connection, however with unbalanced line-level signals, impedance at both ends of the chain tends to be orders of magnitude higher than the connection will create, so one split will be barely noticeable. So too, the noise increase from the additional length of cable.
Now, one source into two inputs, that will by basic math and physics result in a 3dB drop in signal strength, which will reduce SNR by about that much. By splitting the signal path between two inputs of equal impedance, half of the wattage is being consumed by one input and half by the other (the equation changes if the inputs have significantly different impedances). So each input gets half the wattage produced by the source to drive the signal on the input cable, and in decibel terms a halving of power is a 3dB reduction. Significant, until you just turn the gain back up. The “noise floor” will be raised by however much noise is inherent in the signal path between the split and the output of the gain stage; for pro audio this is usually infinitesimal, but consumer audio can have some really noisy electronics, both for lower cost and because you’re not expected to be “re-amping” signals several times between the source and output.
What "codes" for proteins that your body uses
to make eye pigment, hair color, hair texture and
etc.?
Proteins
Genes
Phosphate-sugar group
Carbohydrates
Answers
Genes are segments of deoxyribonucleic acid (DNA) that contain the code for a specific protein that functions in one or more types of cells in the body.
What are the 4 types of genes?DNA is made up of millions of small chemicals called bases. The chemicals come in four types A, C, T and G. A gene is a section of DNA made up of a sequence of As, Cs, Ts and Gs.
Thus, option "B" is correct.
To learn more about the genes click here:
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Which of the following statements are typical for cancer cells? Select all that apply
A. They tend to be unspecialized.
B. They undergo apoptosis.
C. They may form tumors that metastasize.
D. They have defective genes.
Answers
Imagine we have labeled tetrodotoxin (TTX) so that it can be seen with a microscope. If we wash this TTX onto a neuron, what parts of the cell would you expect to be labeled?
A. Axons
B. Mitochondria
C. Dendrites
D. Cell bodies
Answers
Answer:
C
I just didnt do it
Explanation:
Axon is the part of the nerve cell which would be expected to be labelled which can be seen by washing TTX onto a neuron. Thus, the correct option is A.
What is Tetrodotoxin (TTX)?
Tetrodotoxin (TTX) is a natural toxin which interferes with the function of voltage-gated sodium channels in the cell membrane. Tetrodotoxin blocks the sodium permeable pore in the membrane by binding tightly to a specific part outside the channel proteins and block all the sodium-dependent action potentials in the membrane.
Applying TTX to a neuron would block all the impulses in the neuron, preventing it from firing action potential, regardless of the impulse. Labeled TTX could be visualized on the cell's axon, where the voltage-gated sodium channels are concentrated.
Therefore, the correct option is A.
Learn more about Tetrodotoxin here:
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What effect would a latitude of 60° have on the climate?
A. Extreme cold, deep freezing
B. Warm weather, short winters
C. Short summer, cold winters
D. Temperate weather, average winters
Answers
Answer:warm weather ,short winters
Explanation:
1. Where in the paramecium might you find proteins? Explain why?
Answers
Which are correct examples of physical (P), chemical (C), and biological (B) barriers?
P: complement system; C: saliva; B: coughing
P: coughing; C: saliva; B: complement system
P: coughing; C: sneezing; B: complement system
P: complement system; C: saliva; B: sneezing
Answers
Answer:
(Explanation is answer) Hope this helps. Brainliest pls
Explanation:
The innate immune response is the first mechanism for host defense found in all multicellular organisms. The innate immune system is more ancient than the acquired or adaptive immune response, and it has developed and evolved to protect the host from the surrounding environment in which a variety of toxins and infectious agents including bacteria, fungi, viruses and parasites are found (1).
The immune system is complex and is divided in two categories: i) the innate or nonspecific immunity, which consists of the activation and participation of preexistent mechanisms including the natural barriers (skin and mucosa) and secretions; and ii) the adaptive or specific immunity, which is targeted against a previously recognized specific microorganism or antigen. Thus, when a given pathogen is new to the host, it is initially recognized by the innate immune system and then the adaptive immune response is activated (2). Innate immunity is the host’s first line of defense and is intended to prevent infection and attack the invading pathogens.This nonspecific mechanism is fast (minutes to hours) while the adaptive response takes longer (days to weeks).
Innate immunity is comprised of different components including physical barriers (tight junctions in the skin, epithelial and mucous membrane surfaces, mucus itself); anatomical barriers; epithelial and phagocytic cell enzymes (i.e., lysozyme), phagocytes (i.e., neutrophils, monocytes, macrophages), inflammation-related serum proteins (e.g., complement, C-reactive protein, lectins such as mannose-binding lectin, and ficolins); surface and phagocyte granule antimicrobial peptides (e.g., defensins, cathelicidin, etc.); cell receptors that sense microorganisms and signal a defensive response (e.g., Toll-like receptors); and cells that release cytokines and inflammatory mediators (i.e., macrophages, mast cells, natural-killer cells). Once the interaction host-invader pathogen enters, a signaling cascade is initiated which enhances the immune response and activates specific mechanisms (3-5). This natural immune response is designed to: a) prevent infection, b) eliminate invader pathogens, and c) stimulate the acquired immune response.
The correct examples of physical, chemical, and biological barriers are coughing, saliva, and complement system respectively.
What do you mean by Barriers?Barriers may be defined as something that blocks the free passage of any object, compound, or thing.
Coughing mediates the physical barrier that kills the pathogen and improves the body's immune system at the physical level. Saliva consists of an enzyme that kills the pathogens on body surfaces, so it is classified under a chemical barrier. Biological barriers involve the action of the complement system which performs the activity of lysis of pathogen particle and stimulate the body's immune response.
Therefore, the correct examples of physical, chemical, and biological barriers are coughing, saliva, and complement system respectively.
To learn more about Biological barriers, refer to the link:
https://brainly.com/question/24881456
10:54 PM Fri Nov 6
21%
Ecology Test Part 1
Questions 1-2 of 2 | Page 1 of 1
Question 1 (6 points)
A farmer has been placing a certain chemical pesticide on his corn crop for the past 10 years. The pesticide
contains chemicals that have lots of nitrogen-based and phosphorus-based compounds. Over the past
couple of years, the farmer has been noticing that the pond near his farm is beginning to grow massive algae
blooms! He has contacted you to help him solve this problem. A.) Based on your knowledge of
biogeochemical cycles what do you think is the cause of this problem? B.) How do you think this will affect
the food chain/web in the pond? C.) What do you think the farmer could do to turn this problem around, if
anything? D.) How do you think the chemical contaminate got into the water supply?
Answers
Answer:
C but not totally sure but I hope I'm right though I wanna help
Explanation:
A body cell is in the longest stage of its life cycle. The cell grows, synthesizing proteins (not chromosomes) and increasing in size. Eventually, the cell will grow too large to carry out normal activities and begin mitosis. Which phase is the cell in? (4 points)
Group of answer choices
G1
Cytokinesis
G2
S
Answers
hope this helps! please rate!
What do populations need to grow? *
Answers
Answer:
Populations of people need things such as agriculture, housing, food, animals, and the economy. They also need such things such as music, plays, arts, books, instruments, and more to thrive.
Explanation:
How is chromatin structurally different from chromosomes?
Answers
Answer:
The main difference between chromatin and chromosome is that chromatin consists of the unravelled condensed structure of DNA for the purpose of packaging into the nucleus whereas chromosome consists of the highest condensed structure of the DNA doublehelix
13. The starting molecule for cellular respiration is:
glucose
ADP
O pyruvic acid/pyruvate
citric acid
Answers
Cellular repiration
Equation
C6H1206+6O2 6H20+6CO2 + ATP (Energy)
Glucose+Oxygen to Water + Carbon Dioxide to Energy
how is the classification of living things related to the structure of their cells?
Answers
Answer:
The most basic classification of living things is kingdoms. ... Living things are placed into certain kingdoms based on how they obtain their food, the types of cells that make up their body, and the number of cells they contain. Phylum. The phylum is the next level following kingdom in the classification of living things.
Explanation:
hope these help
The classification of living things significantly depends on the structure of their cells and based on this, they are divided into two types. They are as follows:
Prokaryotes. Eukaryotes. What do you mean by Cell structure?The structure of a cell may be defined as the components through which it has developed. It includes the cell membrane, the nucleus, and the cytoplasm. The cell membrane is a semi-permeable membrane that separates the inner atmosphere of the cell from the outer environment.
The nucleus is a structure inside the cell that contains the nucleolus and most of the cell's DNA. It is also where most RNA is made. When it comes to prokaryotes, they lack a well-defined nucleus and other membrane-bound cell organelles.
Eukaryotic cells generally have a well-defined nucleus and other membrane-bound cell organelles. Apart from this, these types of cells are generally highly compartmentalized as compared to prokaryotic cells.
Therefore, the classification of living things significantly depends on the structure of their cells that has been described above.
To learn more about the Classification of living organisms, refer to the link:
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Which landforms are present in the Andean countries?
Answers
Mountain Peaks, Plateaus, Plains
Hope this helps!
The amino acid glutamate triggers which taste quality?
A. Bitter
B. Sweet
C. Umami
D. Salty
Answers
PLS HELP ILL MARK BRAINLIEST !!!!
Answers
Most of the concentration of which gas results from the activity of producer organisms?
carbon dioxide
nitrogen
oxygen
water vapor
Answers
Answer:
oxygen
Explanation:
I think it's oxygen, if not I'm sorry
The concentration of which gas results from the activity of producer organisms is oxygen. Thus, option C is correct.
What is the role of producers in the process of photosynthesis?
Producer organisms that has been included the plants as well as algae and refer to the organisms that are able to produce their own food by the synthesizing it from inorganic matter. This has been what plants and algae are able to do just through the process of the photosynthesis.
During photosynthesis, these has been organisms produce food for themselves and in doing so they produce the oxygen as a by-product. This has been what contributes mostly to the concentration of oxygen in the atmosphere.
Strontium and oxygen is a pair of atoms that would exhibit ionic bonding. During the process of photosynthesis has been defined as the process by which green plants prepare their own food in the presence of sunlight and during this process heat energy has been converted into chemical energy.
Therefore, The concentration of which gas results from the activity of producer organisms is oxygen. Thus, option C is correct.
Learn more about photosynthesis on:
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Which of the following is a function of the cell membrane of a cell?
Answers
Answer: iM guessing you meant something like this
C. The transport of molecules into and out of the cell through osmosis and diffusion. D
Explanation:
Which of the following is a function of the cell membrane of a cell? A. The production of energy from food molecules using cellular respiration. B. The production of genetic material through DNA transcription. C. The transport of molecules into and out of the cell through osmosis and diffusion. D. The transport of genetic material within the cytoplasm of the cell.
