Answer:
B. Bacteria take DNA from their environment.
Explanation:
This is the only option that actually has to do with a transformation OF bacteria.
Answer:B. Bacteria take DNA from their environment.
By what means has the overuse of antibiotics in medicine and agriculture lead to the current global problem of antibiotic resistance?
The overuse of antibiotics significantly increases the bacterial mutation rate, causing more antibiotic-resistance mutations to occur.
Humans develop an immunity to antibiotics, rendering them ineffective.
Indiscriminant use of antibiotics selects for resistant bacteria and increases their numbers.
Antibiotic resistance is a fabricated problem used to sell newer and more expensive antibiotics.
Answer:
Sorry I don't know
Explanation:
Because I think so its not of my class and BTW can I know ur name?
Okk
9. In order to grow two of the exact same plants, a person would reproduce them asexually because the
a) genetic diversity is greater. b).offspring would be genetically identical. c. recessive traits would emerge d). negative traits are suppressed.
Answer:
b).offspring would be genetically identical.
Explanation:
To grow the exact same plants, a person would reproduce asexually because the offspring would be genetically identical. Hence, the correct answer is option b.
What are the different modes of reproduction?There are two different types of reproduction: sexual reproduction and asexual reproduction. In sexual reproduction, the offspring that are formed are slightly different from the parents. This is due to meiotic cell division. Variations in offspring are seen as a result of gene crossing over.
In asexual reproduction, all the offspring are identical to the parents. It is similar to mitosis. Recombination and crossing over do not occur here.So in order to get the exact same plant, this type of reproduction is done by taking a branch from a tree, etc. Others are incorrect statement options.
Hence, to get the exact same plants, a person should go for asexual reproduction, as they produce genetically identical offspring. Option b is the correct answer.
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Question 1 of 6
In which region is there most likely to be a volcano?
Eurasian plate
D
B
North
American
plate
BAD
Pacific
plate
Pacific
plate
African
plate
Indo-
Australian
plate
South
American
plate
Antarctic plate
Answer:
the correct answer is D :)))!!
1. State three ways in which protein are important to plant
(3marks)
Proteins are important in plants in order to synthesize cellular components (e.g., organelles), provide structural support cytoskeleton) and carry to metabolic reactions (enzymes).
Proteins are fundamental biomolecules composed of amino acids linked by peptide bonds.In cells, proteins can play diverse structural and enzymatic roles.For example, structural proteins are required to synthesize ribosomes, which serve to assemble other proteins that form the cytoskeleton of cells. Moreover, enzymes are proteins capable of catalyzing chemical reactions such as photosynthetic reactions.In conclusion, proteins are important in plants in order to synthesize cellular components (e.g., organelles), provide structural support cytoskeleton) and carry to metabolic reactions (enzymes).
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specialized tissues are made up of ____.
a. organs
b. muscles
c. body systems
d. cells
Elijah goes to sleep while his intestines digest his supper. His intestine is a type of _.
A. voluntary muscle
B. involuntary muscle
C. cardiac muscle
Answer:
B) Involuntary
Explanation:
Intestines are involuntary muscles that help food move through the digestive tract without thinking twice.
Looking at the overall structure of the catkins, how do you
think these trees evolved to have their pollen disperse?
Answer: just look it up on goegle
Explanation:
pls help me with this immediately!!! and pls don’t guess and leave links only answer if u actually know. (i’ll be leaving brainiest to the correct person)
Answer:
The answer is the Sweating, your body releases water to cool down the skin of your body!
Explanation:
So it would mean the answer would be the third choice hope this helped
Which organelle is a fluid-filled structure designed for storage? *
A. Ribosome
B. Vacuole
C. nucleus
D. mitochondria
HELP ME PLEASEEE
Answer:
vacoule in plants cell only and it stores food
Which table correctly describes the functions of the cell structures
listed
HELP ME PLEASE
Answer:
The correct answer is - cell membrane - regulates cell contents.
Explanation:
Various cell structures have different cellular functions in the cells. The major function of the chloroplast is to produce sugar with the help of chlorophyll pigment by trapping the sunlight. The mitochondria perform cellular respiration and convert sugar to energy.
The vacuoles are the cell structure that helps in maintaining water balance and also store nutrients and sometimes help in waste disposal, however, it is not its major function. The cell membrane is the cellular structure and barrier that regulate what cell content will move outside the cell and what will enter.
Biodiversity true or false?
1) Relationships between different species are very important.
2) An environment with 2 million corn plants is more biodiverse than one with 100 corn plants, 25 butterflies, and several other animals.
3) Biodiversity refers to the variety of life in an ecosystem.
4) High biodiversity helps to ensure resilience and stability. In other words, ecosystems with high biodiversity are usually healthier.
Answer:
All are true besides (2)
Explanation:
diversity is variety of things, not mass of them
If CO2 is increasing but ethanol is not increasing, what is occurring?
Answer:
Both the products of yeast fermentation, ethanol and CO2, act as product inhibition. Its not toxic, but CO2 will inhibit further fermentation activity of culture yeast.. Hello there. ... Its not toxic, but acid produced during fermentation, will increase the H+ ions in ur media which will hinder further yeast growth.
When no increase in ethanol concentration, while the increase in carbon dioxide, there will be a decrease in the fermentation rate.
What is the role of carbon dioxide in ethanol fermentation?Ethanol fermentation is the process of conversion of sugars into carbon dioxide and alcohol.
The ethanol and carbon dioxide are the products of the ethanol fermentation reaction. The products act as inhibitors of the reaction.
With the increase in the concentration of carbon dioxide, the inhibitor concentration increases, resulting in the inhibition of the fermentation reaction.
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Which of the following statements about organelles is NOT true?
A. Chloroplasts contain chlorophyll and are the site of photosynthesis.
B. Many of the same organelles are located in both plant cells and animal cells.
C. The nucleus in an animal cell has a different primary function than in a plant cell.
D. The endoplasmic reticulum has several roles, including packaging and transporting proteins.
Answer: C. The nucleus in an animal cell has a different primary function than in a plant cell.
Explanation:
In both plant and animal cells, the nucleus safely stores the DNA so it doesn't get damaged.
what does it mean if a micrograph is false colored?
In Guinea pigs, short hair is dominant and long hair is recessive. A
heterozygous male is crossed with a long-haired female. They have a litter
of six babies. Answer the following: (a) What letters will you use for this
cross and what will they represent? (b) What is the parent cross? (c) What
are the possible genotypes of the offspring, and what percent will carry
each genotype? (d) If they have six babies, how many would you expect to
have long hair? short hair? *
Answer:
a. S represents allele for short hair while s represents allele for long hair.
b. Ss (male) × ss (female)
c. 50% Ss, 50% ss
d. 3 long hair (ss), 3 short hair (Ss)
Explanation:
This question involves a single gene coding for hair length in guinea pigs. The allele for short hair (S) is dominant over the allele for long hair (s).
a. Letter "S" will represent the allele for short hair while letter "s" will represent the allele for long hair.
b. According to this question, a heterozygous male is crossed with a long-haired female. The genotype of the male guinea pig is "Ss" while that of the female is "ss". (see attachment for the punnet square)
c. The possible genotypes of the offsprings in this cross are: Ss and ss, each carrying 50% each as they are produced in a ½ Ss: ½ ss.
d. Since 50% of the offsprings will be both short haired and long haired, If they have six babies, 3 of them will be short-haired while 3 of them will also be long-haired.
If a red blood cell is placed in a solution that has a concentration gradient higher than the red blood cell, this type of solution is called --
Answer:
Hypertonic solution
Explanation:
A hypertonic solution is where the concentration outside of the cell is greater when compared to the inside of the cell.
If a red blood cell is placed in a solution that has a concentration gradient higher than the red blood cell, this type of solution is called - hypotonic solution.
Hypotonic solution is the one that contains more concentration as compared to the concentration in the cytoplasm of cells. It means that a solution contains more water as compared to the water within the cell.
molecules move from their higher concentration to their lower concentrationIt is called osmosisWater molecules always try to balance their concentration on both sides.When an animal cell, such as a red blood cell, gets water to the hypotonic solution, it swells.Thus, If a red blood cell is placed in a solution that has a concentration gradient higher than the red blood cell, this type of solution is called - hypotonic solution.
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Describe how each of Newton’s laws may be observable during a car trip.
If the seat belts on any passengers are fastened, the vehicle will also slow down until everyone is at rest. Additionally, if a car was moving straight when another car struck it, the direction of the car would shift.
What are newton's three law of motions ?According to the first law, until a force acts on an item, it will not alter its motion. According to the second law, an object's force is determined by multiplying its mass by its acceleration. According to the third law, when two objects interact, they exert equal-sized and opposite-direction pressures upon one another.
There's a fourth law , it states that every object tends to remain in the state it is in right now. We refer to this propensity as inertia. Every object tends to remain in the state it is in right now.
Therefore, If the seat belts on any passengers are fastened, the vehicle will also slow down until everyone is at rest (First law) . Additionally, if a car was moving straight when another car struck it, the direction of the car would shift (Third law).
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Explain how and why you would conduct a study to determine if this bone can be used to determine sex
Answer:
The pelvis is the best sex-related skeletal indicator, because of distinct features adapted for childbearing. The skull also has features that can indicate sex, though slightly less reliably. Males have a square jawline and the line between the outer edge of the jaw and the ear is vertical. Conversely, in females the jaw is much more pointed and the edge of the jaw slopes gently towards the ear.
Explanation:
HELP!!! DONT SEND NO LINK, IT DONT WORK!!!!
Explain why harmful mutations tend to disappear, while beneficial mutations become
widespread.
Answer:
Harmful mutations don't accumulate over time because they reduce the reproductive success of an organism! These mutations would be dead before they can produce any offspring, so there's a slim chance of their genes being passed on. (So it's basically like survival of the fittest, the ones that survive usually have beneficial mutations because that's what keeps them alive lol) Beneficial mutations play a big role in evolution too!
Explanation:
I hope that cleared things up for you! pls give me brainliset <3
Explain the relationship between autotrophs heterotrophs and decomposers In 4 to 5 sentences
Answer:
please give me brainlist and follow
Explanation:
Autotrophs (or producers) make their own food using light or chemical energy. Examples of autotrophs include plants, algae, and some bacteria. ... Animals, fungi, and many bacteria are heterotrophs. Specialized heterotrophs, called decomposers break down dead organic material and wastes.
What are the only types of
cells to contain a cell
membrane?
A. animal cells
B. plant cells
C. all cells
Answer:
B
Explanation:
Answer:
C. all cells
Explanation:
Please help if you know the answer please
Answer:
Vascular Plants have special vessels that help the plant carry water and sunlight/food throughout the plant, making it survive in conditions where the place has enough sunlight and water. Non vascular plants however don't rely on these, as they rely on the moist locations in places like South America and Hawaii, and dont rely on roots for water comsuption.
Explanation:
Please Help!
What can you determine from the principles of cross-cutting relationships?
A. Layers that cut across the most other features are youngest.
B. In a given region, all layers of sediment form at the same time.
C. The layers of sediment on the bottom are the oldest.
D. Two different types of sediment will not cut across each other.
Science A P E X
easy question, easy points
Answer:
I believe it's C.
Explanation:
Answer:
c
Explanation:
Fossil fuels are very abundant and cost efficient in general true or false
Answer:
False
Explanation:
A dollar weed species has become resistant to a particular weed killer. What happens to the percentage of dollar weed offspring that survive weed killer treatments in future generations?
Answer:
A. The percentage will increase
Explanation:
If the species is becoming resistant to the weed killer, natural selection will cause future generations to become resistant as well, therefore the percentage of resistant dollar weed will increase. Also I took the test lol.
Which of these elements is likely to be found in an organic compound?
helium
hydrogen
mercury
tin
Which of the following tools of biotechnology is incorrectly paired with its use?
a. restriction enzyme - enzyme that cuts DNA
b. DNA sequencing - used to separate strands of DNA
c. Taq polymerase - used in a PCR to amplify sections of DNA
d. plasmid - a small, circular piece of extra DNA found in bacteria
e. gel electrophoresis - separation of DNA fragments by size and charge
Answer:
B
Explanation:
DNA sequencing is used to determine the order of nucleotides in a DNA sequence, not to separate them
What fraction of their genetic material does each parent give to their child? Explain why.
Answer:
Each parent contributes, on average, half of the genetic material of each child. If a parent has n children, what percentage of the parent’s genes exist in total across all n offspring?
How can one generalize the solution to #1, to make it applicable to more distant relationships like uncles & aunts, grandparents, and cousins, where the fraction of shared genes is smaller?
Which term describes resistance to change in motion? A. Acceleration B. Inertia C. Net force D. Velocity
Answer:
Inertia
Explanation:
Inertia is the resistance of any physical object to any change in its velocity. This includes changes to the object's speed, or direction of motion.