Answer:
What causes genetic variation?
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism’s offspring).
Explanation:
PLZ mark brainliest also I hope this helps
Answer:
Genetic variation can be caused by mutation (which can create entirely new alleles in a population), random mating, random fertilization, and recombination between homologous chromosomes during meiosis (which reshuffles alleles within an organism's offspring).
Explanation:
What are 4 signs that a chemical reaction had occurred?
Recalling a memory is most like:
A. reconstructing pieces of information.
B. creating new long-term potentiation.
C. "playing back" a stored file.
D. watching a movie of still images.
A. reconstructing pieces of information.
I think this is the answer
there are three farms (A,B, and C) that are on three different rivers that feed into the towns reservoir, Lake Ruby. What data would support the claim that farm A and not farm B or C is responsible for the fertilizer in the reservoir?
Answer:
The analysis of water.
Explanation:
The data of stream that comes from the farm A is the claim that provided evidence that farm A is responsible for the fertilizer in the reservoir because the analysis of the data shows that there is fertilizer present in the water that comes from farm A to the reservoir. This fertilizer comes in the water due to the application of fertilizer on the field, if the fertilizer is not used on the field, there is no traces of fertilizer in the water of reservoir.
12. If energy must be added to a chemical reaction for the reaction to take place, the
reaction is
A. exergonic
C. endergonic
B. exothermic
D. endothermic
Answer: exergonic
Explanation:
How would the specific gravity of urine be different after a vigorous workout without the consumption of significant quantities of water?
After a full of life exercise with out eating good sized quantities of water, the precise gravity can have a better concentration.
A full of life exercise will increase the breakdown of glucose, without sufficient water to flush it out it stays withinside the urine which means precise gravity might be excessive due to the of the excessive glucose content.
What is the gravity ?Gravity, additionally referred to as gravitation, in mechanics, the time-honored pressure of enchantment performing among all matter.
Thus it is well explained.
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DESPERATE NEED ANSWER FAST AND BAD WILL GIVE BRAINLIST AND THANKS
During the Paleozoic Era glaciers moved through North American to carve out landforms.
Question 3 options:
True
False
Answer:
True
Explanation:
This is how we have mountains, rivers, lakes, etc.
Have a great day,
PumpkinSpice1
Answer:
This statement is true
Explanation:
Which is not a function of the respiratory system?
A. Transports blood throughout the body
B. Controls your breathing
C. Takes in oxygen into the body
D. Removes carbon dioxide from the body
Transports blood throughout the body is not a function of the respiratory system. Thus, option A is correct.
What is circulatory system?
The circulatory system transports oxygen that the respiratory system brings into the body and the circulatory system which is made up of the heart and vessels such as veins and arteries carry oxygen, nutrients and hormones to other parts of the body. The respiratory system deals with bringing in the oxygen into the body for use which is then distributed by the circulatory system to various parts.
According to my research on studies conducted by various medical professionals, I can say that based on the information provided within the question the main function of the respiratory system is to supply the body with oxygen and remove carbon dioxide. This process is done through many different organs, the main one being the lungs which takes the oxygen and disperse it through the bloodstream.
Therefore, Transports blood throughout the body is not a function of the respiratory system. Thus, option A is correct.
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Which of the following describes the difference between scientific theories and scientific laws
Answer:
A scientific law describes an observed pattern found in nature without explaining it. The theory is the explanation.
Explanation:
BRAINLIST PLEASE ANSWER
is red sandstone Tilting, Erosion, or Folding
Answer:
erosion
Explanation:
erosion is when weathering or natural weather breaks down and changed the physicals and chemical properties of a rock
Determine if the statement is true or false. If false, replace the word(s) in bold with the correct word(s) on the line. If true, write "true" on the line.
___________ Bacteria are multiple-celled microscopic organisms.
___________ Bacteria are the most abundant form of life on Earth.
___________ Your digestive tract is home to billions of bacteria.
___________ Vitamins are a type of medication used to kill bacteria.
___________ Common bacterial shapes are rods, spheres, and cones.
___________ Cilia or legs are used for locomotion in some bacteria.
___________ In general, bacteria consist of a nucleus, ribosomes, and a cell wall.
___________ Some types of bacteria can make their own energy through photosynthesis.
___________ Fusion is a form of asexual reproduction where two identical cells are formed from one parent cell.
___________ Some bacteria can exchange genetic material with each other using a thin tube that connects them.
___________ Bacteria can multiply and grow larger quickly.
Scientists think that bacteria evolved around 3.5 billion years ago.
Answer:
False Bacteria are multiple-celled microscopic organisms. True Bacteria are the most abundant form of life on Earth. True Your digestive tract is home to billions of bacteria. False Vitamins are a type of medication used to kill bacteria. True Common bacterial shapes are rods, spheres, and cones. False Cilia or legs are used for locomotion in some bacteria. False In general, bacteria consist of a nucleus, ribosomes, and cell wall. True Some types of bacteria can make their own energy through photosynthesis.False Fusion is a form of asexual reproduction where two identical cells are formed from one parent cell. True Some bacteria can exchange genetic material with each other using a thin tube that connects them.True Bacteria can multiply and grow larger quickly. True Scientists think that bacteria evolved around 3.5 billion years ago.
Explanation:
The fundamental microscopic components of all species are cells. Two groups of cells, Prokaryotes and Eukaryotes, exist. Prokaryotic (meaning pro: before and Karyon: for kernel/nut) identifies species that do not have membranes surrounded by a cell nucleus or other organelles.
Bacteria, thought to have evolved 3.5 billion years ago are types of prokaryotes and are the oldest forms of life on earth. As single- celled life forms, they take on various shapes (rods, cones, spheres, spirals) and are capable of reproduction through asexual binary fission, and exchange genes in horizontal gene transfer (conjugation, transduction etc) and cell fusion .
They live in communities and, grow exponentially in number over short periods of time. Some are autotrophs, capable of producing their own food through photosynthesis. Some species can move around using flagella, long whip-like projections from the cell.
In humans, bacteria have colonized the intestinal tract. While some are beneficial as part of the microbiome, others are disease-causing pathogens- these are typically eliminated via the use of antibiotics.
The statements can be True or False as:
1. The given statement is False. Bacteria are single-celled or unicellular prokaryotic organisms.
2. The given statement is true. Bacteria are the most abundant forms of life on earth, such that they are found in extreme temperatures.
3. The given statement is True. The digestive tract is composed of billions of bacteria, which help in the breakdown of molecules.
4. The given statement is False. The vitamins are nutritive substances, which can cause deficiency diseases.
5. The given statement is True. The bacteria exist in different forms and shapes, such as rods, cones, and spherical.
6. The given statement is False. Flagella are the filamentous structures used for locomotion.
7. The given statement is False. The bacteria are prokaryotes and lack membrane-bound organelles like the nucleus, ribosomes, and mitochondria.
8. The given statement is True. The bacteria such as cyanobacteria perform photosynthesis.
9. The given statement is False. The bacteria reproduced through binary fission or conjugation.
10. The given statement is True. Conjugation or transduction is a process through which bacteria exchange genes.
11. The given statement is True. The bacteria grow exponentially and multiply at a very fast rate.
12. The given statement is True. The origin of bacteria dates back to 3.5 million years ago.
Thus, the bacteria are prokaryotic organisms, which are found at extreme temperatures and undergo asexual reproduction.
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Water is classified as an inorganic compound because it
A) does not contain carbon
B) does not contain nitrogen
C) contains hydrogen
D) contains oxygen
Water is classified as an inorganic compound because it A) does not contain carbon.
Why is water an inorganic compound?Water is considered an inorganic compound because it doesn't have carbon in it and is represented as H2O.
Inorganic compounds are substances that don't have carbon-hydrogen (C-H) bonds.
Even though water has other elements like hydrogen and oxygen, it's still classified as inorganic because it lacks carbon, which sets it apart from organic compounds.
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TRUE OR FALSE Mendel said that the factors that control a trait exist in pairs.
Imagine a population of rabbits in which most of the rabbits are brown all
year. Then a mutation occurs, and one rabbit is born with a coat that turns nearly white in the winter. How might this white coat present an advantage to the rabbit?
A. The white coat would help the rabbit hide from predators when
snow fell during the winter.
B. The white coat would help the rabbit stand out against the greens
and browns of summer foliage.
C. The white coat would help the rabbit attract a mate more easily
than a brown coat.
D. The white coat would help the rabbit stay warmer than a brown
coat
Answer:
A
Explanation:
San Diego, California has cooler temperatures than Phoenix, Arizona which is the at the same latitude but further inland. What causes the temperature differences?
Answer:
the sun and earth are in different places but im not 100% sure bout it
Explain how the data from your experiments showed that cyanide was used to poison Jared, and that 2-deoxyglucose, arsenic and oligomycin were not used.
PLEASE HELP ASAP!!!
The question is incomplete as the background of the case and symptoms of Jarod is not provided, however, the missing data required for the question is as follows:
Jared was investigating a drug cartel and ate a meal with one of the suspects. After the meal, he had trouble breathing and felt weak and dizzy. Jared may have been poisoned. He is being taken to the CIA hospital for treatment. You are a medical toxologist working for the CIA. It is your job to find out what poison was given to Jared and try to save his life. Patient: Jared Sondheim Age: 32 Occupation: CIA Agent Symptoms: Muscle Weakness Shortness of Breath Dizziness. Jared has arrived at the hospital! It is your job to find out what toxin was used to poison Jared. You can then give him the correct antidote to save Jared's life.
Answer:
Poisning by 2-deoxyglucose syops the glycolysis process which leads to cardiovascular and respiratory symptoms. Due to property of inhibiting the enzyme reqquired for glycolysis, glucokinase. So, there is no ATP production takes place.
Arsenic poisoning inhibits the second stae of cellular respiration, the Krebs cycle which leads to pyruvate accumalation. The symptoms associated with arsenic are diarrhea, sking tone, abdomunal pain, and muscle cramps.
Oligomycin is used as an antibiotic to inhibit proton ATPase present in mitochondria membrane which blocks ATP formation. Watery eyes, cough, congestion in chest and nose are sysmptopms of oligomycin poisining.
The symptoms cyanide poisoning are dizziness, short breath, nd muscle weakness which matches with the symptoms of jarod.
A teacher explains to her students that during mitosis, all the cells divide into two daughter cells and each daughter cell has the same number of chromosomes. Which TWO of the following responses explains how this happens?
Answer: you don't have the options but the one cell duplicates its chromosomes so it can separate into the 2 daughter cells
Choose all the answers that apply.
Which of the following are characteristics of the taiga?
largest biome
most animals hibernate or migrate
long, cold winters
found mostly around the equator
most precipitation is snow
Answer:
A). C). D).
Explanation:
hope this is all corect <3
Why do the planets move in a fixed orbit?
The blood vessels that carry blood away from the heart and the rest of the body are...
Answer:
The arteries
Explanation:
Arteries carry oxygen and nutrients away from your heart to body tissue. Veins take oxygen-poor blood back to the heart.
10) List the one way plants can remove carbon from the atmosphere,
and one way they are involved in adding carbon to it.
Answer:
Forests. Photosynthesis removes carbon dioxide naturally — and trees are especially good at storing carbon removed from the atmosphere by photosynthesis
Explanation:
Plants are involved in the Carbon Cycle by absorbing Carbon out of the atmosphere in order to photosynthesize. The Carbon is used during the photosynthesis. It gets back in the environment by a plant's breathing process.
Which planet is most like Earth in size and density?
Answer:
Venus
Explanation:
In terms of size, average density, mass, and surface gravity, Venus is very similar to Earth. But Mars is the planet that is most similar to Earth in other ways. A Martian day is just over 24 hours, and its rotation axis is tilted by about the same amount as Earth's.
Which of the following is considered a key word for the endocrine system?
A: stimulus
B:hormone
C:support
D:transport
Answer:
B. hormone
Explanation:
The endocrine system involves many organ systems and hormones, many of which are still being investigated and understood.
What happens that makes rain start to fall from a cloud?
Answer:
when water vapor turns into clouds
Explanation:
Water vapor turns into clouds when it cools and condenses—that is, turns back into liquid water or ice. ... In the cloud, with more water condensing onto other water droplets, the droplets grow. When they get too heavy to stay suspended in the cloud, even with updrafts within the cloud, they fall to Earth as rain.
The main human activity that releases greenhouse gases is
using public transportation and there by reduce the affects of greenhouse gases
burning fossil fuels
texting on cellphones
eating meat
Answer: Burning Fossil Fuels
Explanation: Technically getting rid of anything on this list would reduce greenhouse gas emissions burning fossil fuel releases 50 billion tonnes of CO2e each year texting on cellphones is estimated to emit 32,000 tons CO2e per year and eating meat is estimated to emit 3.3 tons of greenhouse gas emissions.
Read the instructions for this self-checked activity. Type in your response to each question, and check your answers. At the end of the activity, write a brief evaluation of your work. Activity Plasmid, a DGFPuy developed by Clontech, contains a gene for the green fluorescent protein (GFP) that comes from the bioluminescent jellyfish Aequora victoria. This gene allows the jellyfish to produce a protein that fluoresces, or glows, under ultraviolet light. GFPuv is used as a vector to transform E.coli bacteria. The GFP gene of GFPuv is switched on in the presence of lactose. The plasmid also contains a gene for ampicillin (antibiotic) resistance. Cells with Amor produce a protein that decomposes ampicillin and enables them to survive in an ampicillin environment. Perform the following steps in a laboratory:
1. Introduce the plasmid PGFPUV in E.coli cells by subjecting them to heat shock in the presence of calcium chloride.
2. Spread samples of these cells on four sterile agar plates. Three plates should contain nutrient agar (NA) and one should contain Luria Bertani agar (LB) NOTE LB agar contains lactose. NA contains glucose. Based on the treatment meted out in each plate, write down your observations and conclusions. Compare the results with your peers.
Treatment. observation
-DNA NA.
-DNA/NA / Amp
+DNA NA / Amp
+DNA/LB / Amp
Answer:
the answer would be :
what is the first one ? and what is the second one ?
Write a 5-10 summary (in detail if you want to) over the excretory system. (No Plagiarism)
5.
Both Mars and Venus have a greenhouse effect as well. What are the problems with each of these planets?
Answer:
y
Explanation:
you see when mars gets warm usually mars is hot and cold so that is the green house effect on mars . venus is hot but when it's volcanoes stop erupting it cause certain changes
Which of the following statements best describes interphase?
A. Interphase is made up of the M and C phase and is the portion of the cell cycle where the nucleus divides.
B. Interphase is made up of the G1, S, and G2 phase and is the portion of the cell cycle where cellular contents are duplicated.
C. Interphase is made up of the G1, S, G2, M, and C phase and is the portion of the cell cycle where two new daughter cells are formed.
D. Interphase is made up of the C, G1, S, and G2 phase and is the portion of the cell cycle where the genetic information is exchanged between chromosomes during cell division.
Answer:
The answer would be D
Explanation:
During interphase C GI S and G2 are diving under the microscope causing the exchange in the chromosomes.
Answer: B)
Explanation:
Interphase is made up of the G1, S, and G2 phases and is the portion of the cell cycle where cellular contents are duplicated.
Those three phases G1, S, and G2 are followed by the mitotic phase.
In this mitotic phase, there are cytokinesis and mitosis. After that, there it goes the last phase which is the G0 phase.
This question and phases are referring to the phases of the cell cycle. During the interphase, the cell is growing and it is making the copy of DNA.
ASAP please!!! Brainiest if correct!
Which answer correctly lists the forms of energy in the following process?
Sunlight shines on plants.
Plants photosynthesize to produce sugars, grow, and eventually die.
Plant matter is buried and compressed.
Compressed organic matter is changed to coal.
Coal is retrieved and burned as fuel.
radiant energy, chemical energy, mechanical energy, chemical energy, radiant energy
chemical energy, radiant energy, mechanical energy, chemical energy, electrical energy
radiant energy, chemical energy, mechanical energy, mechanical energy, radiant energy
radiant energy, chemical energy, electrical energy, electrical energy, radiant energy
Answer: radiant, chemical, mechanical, chemical, radiant
Explanation:
Sunlight - electromagnetic energy (radiant)
life - chemical energy
compression - chemical and mechanical energy
retrieve coal - mechanical
burning - chemical, radiant
