Answer:
There's a change in the DNA sequence
Explanation:
If a mutation occurs in cells that will make gametes by meiosis or during meiosis itself, it can be passed on to offspring and contribute to genetic variability of the population. Mutations are the sole source of genetic variability that can occur in asexual reproduction. But the effects of mutations can vary widely, from being beneficial, to having no effect, to having lethal consequences, and every possibility in between.
1. Deciduous trees lose their leaves seasonally and include trees such as cedar and maple.
a. True
b. False
2. Hardwoods reproduce using flowers and have broad leaves; hardwoods include trees such as mango, elm, and pine.
a. True
b. False
3. Conifer leaves are generally thin and needle-like, while seeds are contained in cones. Conifers include pine and elm.
a. True
b. False
4. Evergreens are plants that maintain their leaves in all seasons and include trees such as cedar, mango, and pine.'
a. True
b. False
What is the difference between the rough and smooth endoplasmic reticulum?
Answer & Explanation:
The most basic difference between RER and SER is the presence of ribosomes. When ribosomes attach to the surface of an ER, it gives a characteristic rough appearance; hence it is called Rough ER. On the other hand, a smooth ER does not have ribosomes on its surface. It possesses ribosomes attached to its membrane.
Your bicycle has the mass of 9 Kg , you accelerate at the rate of 2 m/s2 . calculate the net force that is accelerating the bicycle. ( use the formula a= F/m) please this is urgent
Answer:
18kgm/s2
Explanation:
a=f/m
f=a.m
2m/s2 . 9kg
18kgm/s2
Which best describes adenosine triphosphate (ATP)?
A waste product molecule that is produced by cells but cannot be used by them.
A high energy molecule that is used by every cell in the body as an energy carrier.
A process that is used to create energy when oxygen is available to the body.
A process that is used to create energy when oxygen is not available to the body.
Answer:
a high-energy molecule that is used by every cell in the body as an energy carrier.
Answer:
A high energy molecule that is used by every cell in the body as an energy carrier.
Explanation:
Adenosine triphosphate, also known as the "energy currency" of the cell is an organic molecule that readily supplies energy to the cells to carry out metabolic and catabolic functions. This molecule consists of a nitrogenous base known as adenine, ribose sugar, and three phosphate molecules. The hydrolysis of ATP provides energy for muscle contraction, nerve impulses, signaling for hereditary materials like DNA and RNA, as well as phosphorylation.
What term best describes the role of the duck?
O carnivore
O producer
O herbivore
O ominvore
Answer:
omnivores
Explanation:
Ducks are omnivores. Ducks are waterfowl, and like other waterfowl, they eat both plant and animal matter
Which statement explains the goal of using sustainable practices in food
production?
A. It feeds a growing population without harming ecosystems or
humans.
B. It feeds a shrinking human population while still preserving
ecosystems.
C. It keeps a few populations healthy while still generating high
profits
D. It keeps farmers in business by earning them the highest profits.
Answer: A. It feeds a growing population without harming ecosystems or humans.
Explanation:
Sustainable food production refers to the method of using processes that conserve non-renewable energy, non-polluting, economically efficient, and are also safe for everyone in the society. Also, the needs of the future generation isn't compromised.
The statement explains the goal of using sustainable practices in food
production is to feed a growing population without harming ecosystems or humans. Therefore, the correct option is A.
Determine the new concentration, in mg/mL, of the starch solution you diluted in the Erlenmeyer flask. Recall from the Procedures that there are 20 mg/mL of starch in the 2% solution. Use that to determine the milligrams of starch in the diluted starch solution. Then, divide the milligrams of starch by the total volume of the solution, which includes the water plus the starch solution. Record your results for use in future questions.
a. 2 mg/mL
b. 0.05 mg/mL
c. 0.2 mg/mL
d. 10 mg/mL
Answer:
0.05 mg/mL ( B )
Explanation:
Given data:
20 mg/ml starch
2% solution = 2g of solute is in 100g of solvent
Determine the new concentration in mg/ml
Dilution equation = C1V1 = C2V2
new concentration ; applying the dilution factor
dilution factor = 1 : 400 ; ( 2 /400 )g = 0.005 g of solute is present in every 100 mL
∴ new concentration = 0.00005 g / 1 mL * ( 1000 mg / 1g ) = 0.05 mg/mL
How can a change to Earth's tilt affect Earth's climate?
Answer:
It makes seasons more extreme
Explanation:
Selecting resources with reliable credentials and expertise is _____________________________.
A. important for scientific research only
B. important for any information you look up, on any topic
C. not important, everyone’s ideas are equally valid
D. only important when you are looking for medical advice
Answer:
B. important for any information you look up, on any topic
Explanation:
You want reliable information whenever you are trying to understand something that is unknown to you (not just when you are doing research or need medical advice), and you get reliable information from people with the right credentials and expertise on the given matter.
During conjunction the genetic material will be transferred through
a. Capsule
b. Cell wall
c. Pili
d. Medium
Answer:
d.
Explanation:
During conjunction the genetic material will be transferred through pilli.
What is conjugation?During bacterial conjugation, genetic material is transferred from one bacterial cell to another through a structure called a pilus (plural: pili). Pili are thin, hair-like projections that extend from the surface of the bacterial cell and are used for a variety of purposes, including adherence to surfaces and transfer of genetic material. When two bacterial cells are in close proximity to one another, one of the cells can extend a pilus towards the other cell.
The pilus will then make contact with the recipient cell and transfer a small piece of DNA, known as a plasmid, across the intercellular space. This process allows bacteria to exchange genetic material, which can lead to the acquisition of new traits and the spread of antibiotic resistance. Capsules, cell walls, and the surrounding medium are not involved in the transfer of genetic material during bacterial conjugation.
Learn more about conjugation, here:
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Dehydration synthesis leads to ?
Explanation:
Dehydration synthesis leads to the formation of water..
Answer:
Dehydration synthesis is the process of joining two molecules, or compounds, together following the removal of water. During a condensation reaction, two molecules are condensed and water is lost to form a large molecule.
Explanation:
Hope this helps.
Yeasts life cycle is categorized as
Answer:
Alteration in generation
Explanation:
It's because yeast has both haploid and dipliod phases in its life cycle ♂️
What process allows a single cell to grow into a multi-cellular organism?
Answer:
Mitosis
Explanation:
Mitosis is a process where a single cell divides into two identical daughter cells (cell division). As a cell constantly splits and the daughter cells constantly splits, it eventually creates a multi-cellular organism!
DDT is an insecticide that accumulates in the fatty tissues of animals whose concentration increases with each link of the food chain. Which group of organisms is most likely to accumulate the highest concentration of DDT?
The question is incomplete, the complete question is shown in the image attached
Answer:
D
Explanation:
Pollutants tend to an increase in concentration in the fatty tissues of animals compared to the concentration of the same pollutant in the environment.
Also, tend to increase in the fatty tissues of organisms at each trophic level.
Hence, as a result of this, the highest concentration of the insecticide is accumulated by the organisms at the highest level of the food chain. So, the tertiary consumers accumulate the highest concentration of the insecticide.
Density is mass divided by volume (d = m ÷ v). Based on the graph, what happens to a fixed mass of water when it is cooled from 4°C to 0°C?
Answer:
you get -29580 C
Explanation:
you have to add and then multiply 4 by it 4 time and then use the formula and change it to a geometriconaical formula to get that answe
Her eyes are wide-set and slightly slanted. Her nose is short and flat, and she keeps her mouth slightly open. There is a straight crease across her palm, and her fifth digit is unusually short. The doctor tells her parents she has an inherited disorder. If you were the doctor what would you diagnosis Kate with? Discuss the etiology of Kate’s disorder? What is the biggest risk factor for this disorder? How can or will this disorder affect Kate? What test could have been completed to diagnosis this disorder before Kate’s birth?
Answer:
- These morphological features belong to Down syndrome.
- Diagnosis: Down syndrome (Trisomy Extra chromosome 21).
- Etiology: the presence of three copies of the autosomal chromosome 21 instead of two copies in body (somatic) cells.
- Most important health problem: Down syndrome increases the risk of developing Alzheimer's disease (other health problems include heart congenital defects, vision problems, hearing loss, hypothyroidism)
- Diagnostic test: Amniocentesis
Explanation:
Down syndrome (DS) is the most frequent chromosomal abnormality which is generally caused by the presence of an extra copy of autosomal chromosome 21, thereby it is an autosomal trisomy (trisomy 21). DS is often associated with intellectual disability and increased risk of developing Alzheimer's, as well as health problems including, among others, heart congenital defects, vision problems, hypothyroidism, blood disorders, hypotonia, endocrine problems, dental problems, seizures, etc. Amniocentesis is the most common invasive prenatal diagnostic procedure which is used to identify chromosomal abnormalities such as trisomy 21 (Down syndrome). Amniocentesis is done between 15 weeks and 20 weeks of pregnancy.
A tool that helps in checking for the accuracy of the primers
Explanation:
i think 'Primer-blast' can
Thụ thể nào liên kết với một phân tử ngoài màng tế bào, hoạt hoá một protein kinase bên trong tế bào?
Answer:
?
Explanation:
I need this help! Please!
PLSSSSSS HELP LIMTED TIME. 150 POINTS!!!
Name structure B in the photo.
Answer:
Structure B is an Ovary
Explanation:
Describe sea turtle populations during the late 1400’s
Answer:
6.5 million sea turtles
Recent estimates show us that there are nearly 6.5 million sea turtles left in the wild with very different numbers for each species, e.g. population estimates for the critically endangered hawksbill turtle range from 83,000 to possibly only 57,000 individuals left worldwide.
Explanation:
hope it helps you
porfavor especifica que quieres que te diga
Explanation:
Which sensory organ would best detect the movement of a rabbit?
A.
B.
C.
D.
Can someone pls do my biology edgunuity I’ll
Pay you
Hello ! I need to make on Poetry about the snake to make everything what I know about him , means were it lives , what his ears , what is look like , different colour,there is venomous,etc , some on can help me please? Thank you
Answer:
try to explain a little more of exactly what you need. a poem about a snake am I correct?
How vulnerable
How vulnerable is the human body? I was told to never be afraid of anyone
Answer:
I don't know what you mean but emotionally the human body is very fragile and physically the human body is very strong
S. pyogenes is a gram-positive bacterium. Gram-positive bacteria have structural differences that distinguish them from gram-negative organisms.
a. True
b. False
Answer:
True
Explanation:
Streptococci pyogenes is a gram positive bacterium that is found in the dental , collective tissues and in the respiratory tracts. It is different from gram negative bacteria because if it structure. It has a thick peptidoglylcan layer and no lipid membrane compared to gram negative that have thin peptidoglylcan layer and outer lipid membrane.
What would happen to the weight of an ice cub if it melted?
A) it would weigh a little more.
B) it would weigh a lot less.
C) it would weigh the same.
D) it would weigh a lot more.
Answer:
C. it would weigh the same
Explanation:
The mass of the ice doesn't change as the ice melts, so the volume displaced remains the same whether its is solid or liquid.
Which of the following is the main purpose of using an anchored network of booms which funnel debris to a collection area?
Keeping birds from being tangled in fishing line
Providing habitat for lobsters
Reducing overall bycatch from drift netting
Removing floating plastic from the water
Answer:
I believe the answer is 4.
Explanation:
While not an expert on such things, I can draw a conclusion from context clues that the netting would only be used to capture the severe amount of trash found in the ocean.
What is the most likely
explanation for the DNA found in
mitochondria?
A. Mitochondria was once a prokaryotic
organism.
B. Mitochondria was once a eukaryotic
organism.
C. Mitochondria was once a primkaryotic
organism.
Answer:
A
Explanation:
its a
The most likely explanation here is that mitochondria was once a prokaryotic organism. The correct option is A.
What is mitochondria?Mitochondria are membrane-bound cell organelles that produce the majority of the chemical energy required to power the cell's biochemical reactions (mitochondrion, singular).
The mitochondrial energy is stored in a small molecule known as adenosine triphosphate (ATP).
Mitochondria are special compartments (organelles) in our cells best known for their role as powerhouses, converting food molecules into ATP, a molecular fuel for the rest of the cell.
Mitochondria and chloroplasts most likely evolved from engulfed prokaryotes that were once self-contained organisms.
At certain point, an aerobic prokaryote was engulfed by a eukaryotic cell, which then formed an endosymbiotic relationship with the host eukaryote, eventually developing into a mitochondrion.
Thus, the correct option is A.
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Glomerulonephritis is an inflammatory condition that causes the walls of the glomerull to become
swollen and ruptured. The best indication of this condition is the presence of:
a. red blood cells and plasma proteins in the urine
b. urea and amino acids in the urine
c. glucose in the urine
d. glucose, amino acids and fatty acids in the urine
Answer:
D
Explanation:
Since the kidney ha essentially stopped working that is the most common thing