Answer:
I think that the answer is B
As DNA is unzipping this enzyme comes in and begins synthesizing mRNA
A. RNA primase
B. RNA polymerase
C. DNA primase
D. DNA polymerase
What is it about the water that gives rise to large population of fish?
A. It contains fewer nutrients
.B. It does not contain any predators.
C. It contains higher concentration of oxygen.
D. It contains oxygen that has never been used before so it is more useful to the fish.
Answer:
It is C. It contains higher concentration of oxygen.
Explanation:
Would the control group not receive the treatment, or receive the same treatment that has been used before?
Answer:
The control group receives either no treatment, a standard treatment whose effect is already known, or a placebo (a fake treatment).
what does a Cell membrane look like
The cell membrane is not a solid structure. It is made of millions of smaller molecules that create a flexible and porous container.
Explanation:
2. True or false. Trees have to attract bark from other sources. *
O pol
True
False
Why are predators the smallest group at the top in the energy pyramid
Answer:
Predators eat prey, technically speaking.
Explanation:
The lowest and largest group takes the most energy cause it's first base. Going up the chain, the second group takes that energy from the first. Then the third, takes the energy from the second and so on. It's a cycle, and the the smallest group at the top of the energy pyramid will be given the less energy that travels throughout the pyramid.
I hope this makes sense.
Please mark brainliest!
Sexual reproduction in animals depends on the production of gametes.
Which of these processes produces gametes in animals? *
Mitosis
Fertilization
O Meiosis
Binary fission
The process that produces gametes in animals is meiosis.
What is MeiosisMeiosis is a specialized type of cell division that occurs in the reproductive cells, or germ cells, of animals. It involves two rounds of cell division, resulting in the production of four haploid daughter cells, each with half the number of chromosomes as the parent cell.
During meiosis, the genetic material is shuffled and recombined through processes such as crossing over and independent assortment. This genetic variation contributes to the diversity of offspring produced through sexual reproduction.
Read more on Meiosis here https://brainly.com/question/25995456
#SPJ6
Scientists took some cells and grew them in a Petri dish with nutrients. After a while, the cells grew to form a thin layer and stopped when they came in contact with other cells. What does this tell you about cells and the cell cycle?
Answer:
Contact inhibition.
Explanation:
Contact inhibition is a response of a cell in which cell growth stopped when it touches or comes in contact with another cell. When the normal and healthy cells grows and touching other cells, the cell receives a red light signal to stop its growth so the cell stop its growth while on the other hand, if there is no contact with other cell the cell continues its growth.
describe the water cycle process starting from an afternoon thunderstorm.
Answer:
Most thunderstorms form by a cycle that has three stages: the cumulus stage, mature stage, and dissipating stage.
Cumulus Stage
The sun heats the Earth's surface during the day. The heat on the surface and warms the air around it. Since warm air is lighter than cool air, it starts to rise (known as an updraft). If the air is moist, then the warm air condenses into a cumulus cloud. The cloud will continue to grow as long as warm air below it continues to rise.
Mature Stage
When the cumulus cloud becomes very large, the water in it becomes large and heavy. Raindrops start to fall through the cloud when the rising air can no longer hold them up. Meanwhile, cool dry air starts to enter the cloud. Because cool air is heavier than warm air, it starts to descend in the cloud (known as a downdraft). The downdraft pulls the heavy water downward, making rain.
This cloud has become a cumulonimbus cloud because it has an updraft, a downdraft, and rain. Thunder and lightning start to occur, as well as heavy rain. The cumulonimbus is now a thunderstorm cell.
Dissipating Stage
After about 30 minutes, the thunderstorm begins to dissipate. This occurs when the downdrafts in the cloud begins to dominate over the updraft. Since warm moist air can no longer rise, cloud droplets can no longer form. The storm dies out with light rain as the cloud disappears from bottom to top.
The whole process takes about one hour for an ordinary thunderstorm. Supercell thunderstorms are much larger, more powerful, and last for several hours.
hope this helps!!!:)
Explanation:
help me please its due in a hour
Answer:
The correct answer is - in the sickle-cell hemoglobin is the replacement of glutamic acid with valine in the β-globin amino acid chain.
Explanation:
Sickle cell anemia has a mutant gene in which that produces has valine amino acid instead of glutamate in the hemoglobin protein. In the given question the structure of the protein has only one difference that is the replacement of the glutamic acid in normal hemoglobin to valine in the β-globin amino acid chain in the mutant protein.
Valine 6 (beta chain) binds to a different hydrophobic patch (on the alpha chain and causes the disease in sickle cell anemia cases.
Select the correct answer. What falls in the gray area between living and nonliving things? A bacteria B. mold C. virus D. yeast Reset
Answer: C Virus
Explanation:
Why is it virus?, you may ask. Well... virus falls on the grey area between non living and living things
i did not mean to make this
Answer:
wait how could you make something that you didnt mean to make, lol anyways I hope you have an amazing day, and be careful of this virus
Explanation:
Some can force their stomachs outside their mouths to digest prey
A. Sea stars
B. Sea urchins
C. Snails
D. Slugs
Answer:
A. Sea stars
Explanation:
Answer:
sea star
Explanation:
egn
what virus is this i need help
Answer:
Worm virus
Explanation:
They entering our butt to make our popoo
Answer:
Ebola
Explanation:
How many reactants are in the fermentation chemical equation?
If a DNA strand reads ACG TGC AAT TAG, what would the RNA produced from it read?
A patient named Roberto is grieving because he noticed that the money he has saved all his life is not going to his family but is instead going to his medical bills. He is also worried that he will eventually become a burden on his family. His nursing assistant called a social worker to help him cope with the emotional strain of his situation. Which need did the nursing assistant help with?
physical comforts
spiritual comforts
social needs
financial needs
Answer:
physical and social
Explanation:
physical because the social worker will help with talking to him and making him feel better
social because he might get money help
PLEASE HELP I AM ON A TIMER
Answer:
The water will move inside the cell
Explanation:
hope it helps ^^
Describe the contributions of Schlieden and Schwann to the cell theory.
Schwann - In 1839, he cells are the basic unit of animal structure
Schlieden - In 1838, he discovered cells are the basic unit of plant structure
Hope this helps
50 points!!!!
Which of the following are true of enzymes?
Choose all that are correct
Specific enzymes can only facilitate one or two reactions.
Enzymes are not changed by facilitating a reaction.
Enzymes lower the activation energy of a reaction.
Each specific enzyme can facilitate many different reactions.
Enzymes are specialized proteins.
Enzymes raise the activation energy of a reaction.
Answer:
the 2nd one the 3rd one the 5th one
Explanation:
HELP ASAP I NEED HELP! I WILL GIEV BRAINLIEST CROWN
picture below
according to newtons first law of motion, what is required to make an object at rest move? enter your answer in the space provided
Explanation:
if a force is pushed onto an object. it will move with an increasing velocity
which characteristic of living organisms is responsible for the production of oxygen in the leaf of a plant exposed to sunlight.
Answer:
Photosynthesis.
Explanation:
Photosynthesis is a characteristic of living organisms and it is typically responsible for the production of oxygen in the leaf of a plant exposed to sunlight. It is a chemical process used by plants to obtain food from sunlight.
All living organisms such as plants and animals require energy to function properly (life activities). Thus, the cell organelle where energy from nutrients is released is generally referred to as mitochondria. Animals and plants retrieve energy using mitochondria to do cellular respiration because they typically act like a digestive system by taking in nutrients, breaking them down and obtaining energy rich molecules for cell-life activities.
Cellular respiration can be defined as a series of metabolic reactions that typically occur in cells so as to produce energy in the form of adenosine triphosphate (ATP). During cellular respiration, high energy intermediates are created that can then be oxidized to make adenosine triphosphate (ATP). Therefore, the intermediary products are produced at the glycolysis and citric acid cycle stage.
6. A pink snapdragon is crossed to a white snapdragon. What is the probability of getting a red snap dragon
The model of DNA is known as a ___________ because it is composed of two _______ chains wrapped around each other.
Compare and contrast innate immunity and adaptive immunity.
Answer: the difference between innate and adaptive immunity is that innate immunity is a fast immune response that provides the first line of immunological defense against infections while adaptive immunity is a slow immune response mediated by the T and B lymphocytes.
Explanation:
What is the role of oxygen in photosynthesis
Answer:
as fare as I can remember oxygen is actually a waste product that is produced at the end of a plant's photosynthesis cycle
Explanation:
~Notify me if you have questions~
Have a nice day and I hope it helps!
^ω^
-- XxFTSxX
In pea plants, tall (T) is dominant to short (t). A plant with genotype Tt is crossed with a plant with type tt. What percentage of their offspring will be tall?
Answer:
50%
Explanation:
Draw a Punnet square to determine the percentage of offspring that are tall.
The green and blue highlighted columns and rows represents the genotype of the parents. To fill in the genotype of the offspring, write down the letter (T/t) of the parent allele from that row and column the offspring belongs to. By convention, the T is written before t. (The genotype of a tall offspring is written as Tt not tT)
Since the T allele is dominant, as long as the offspring has one T, the offspring is tall. The t allele is recessive, thus two ts (tt) is needed for the short trait to be expressed.
From the Punnet square, the result is 2 offsprings that are tall and 2 offsprings that are short.
Required percentage
[tex] = \frac{2}{4} \times 100\% \\ = \frac{1}{2} \times 100\% \\ = 50\%[/tex]
What is the meaning of life? (I’m Giving out 35 points)
Answer: do what makes you happy
Explanation:
Answer:
to live life to the fullest and appreciate the little things that make you happy and follow your dreams and just accept all the bad days because life isn't perfect and neither is everyone
Is mixing sand a gravel a physical or chemical change?
Answer:
I believe it's a physical change?
Explanation:
Mixing sand and gravel is considered a physical change as it only affects the physical properties, such as appearance and distribution, without altering the chemical nature of the substances involved.
A physical change is a transformation that does not alter the chemical composition or identity of a substance. In the case of mixing sand and gravel, both substances retain their individual properties and characteristics even when they are combined.
The sand particles and gravel particles remain unchanged in terms of their chemical composition.
The mixing process involves the physical interaction of sand and gravel particles, resulting in a uniform distribution of the two components. This change in arrangement does not involve any chemical reactions or the formation of new substances.
The sand and gravel can be easily separated by physical means, such as filtration or sieving, without undergoing any chemical transformations.
Therefore, mixing sand and gravel is considered a physical change as it only affects the physical properties, such as appearance and distribution, without altering the chemical nature of the substances involved.
Know more about gravel particles:
https://brainly.com/question/2569421
#SPJ6