Answer:
There are four different bases, each of which pairs with only another. Adenine (A) pairs with Thymine (T), and Guanine (G) pairs with Cytosine (C). This rule is universal to all DNA. A good way to remember is apples in the tree (adenine and thymine), cars in the garage (cytosine and guanine) (credit to the Amoeba Sisters)
If an isotope's half life is 2 months, and it starts with 240 grams. How many half life's does it take to only have 15 grams left?
A. 2
B. 4
C. 6
Answer:
2
Explanation:
Identify the chromatids and the centromere of a chromosome.
Answer:
Chromatid refers to one half of the chromosome. Centromeres are the center of the chromosomes, where spindles attach during mitosis.
Which birds of the northern United States can probably best withstand extreme temperature changes?
A. Those that migrate to coastal regions in the fall
B. Those that migrate in the fall
C. Those that migrate in the spring
D. Those that remain in that region throughout the year
Answer:
D
Explanation:
i think that is the answer.
helpp a biology quiz
im being ignored help Which of the following is NOT related to a cell's surface area to volume ratio?
cell size
number of nuclei
rate of growth
efficiency of the cell's oxygen transport
Answer:
rate of growth
Explanation:
Answer:
number of nuclei
Hope I helped
membrane bound structure in eukaryotic cells that
contains DNA
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both vascular and nonvascular plants are
a. small
b. autotrophs
c. heterotrophs
d. large
Answer:
a. is the correct answer of this question
Would a doctor prescribe an antibiotic if you have a virus?
A
Yes
antibiotics prevent viruses from replicating, so they eventually die out.
B
Yes - antibiotics effectively target and kill viruses and bacteria.
с
No
most viruses are too powerful to be killed by an antibiotic.
D
No - antibiotics are designed to work on bacteria, not viruses.
Как в нашей стране организована автоматизированная система оповещения населения о возникновении чрезвычайной ситуации?
Долбаеб, это американский сайт, а не русский
What are seismic waves an example of?
A. longitudinal waves
B. transverse waves
C. both transverse and longitudinal waves
D. neither transverse nor longitudinal waves
Answer:
longitudinal and transverse.
Explanation:
Examples of mechanical waves include ripples on the water surface (water waves), sound waves, and seismic waves. Mechanical waves can be classified into two categories based on the motion of the particles – longitudinal and transverse.
Help this is really important!
Answer:
C) They are both involved in cell division
Explanation:
yup
Complete the following sentence.
A compound fruit is made up of each egg cell in a single ovary of a single flour; by extension, when an aggregate fruit develops from many flowers, the fruit develops around each ___.
Answer:
B and a good time to get answer of your questions and answers to your questions and answers to your questions and answers to your questions and answers to your questions and answers
Answer: Ovary
Explanation:
PLEASE HELP I WILL GIVE BRAINLIST TO FIRST PERSON WHO ANSWERS!!!
Any nucleotide contains each of the following except a?
a. nitrogenous base c. sugar b. pyrimidine d. phosphate group
Explanation:
it should be sugar for what nucleotides contains
During which season does the rabbit population increase most rapidly?
A. Spring
B. Summer
C. Fall
D. Winter
Answer:
a
Explanation:
Describe two problems that occur when a human population grows.
Answer:
Explanation:
The exponential growth of the human population could lead to food shortages, global warming, and other issues of resource scarcity.
Answer:
Explanation:
Unsustainable population growth and lack of access to reproductive health care also puts pressure on human communities, exacerbating food and water shortages, reducing resilience in the face of climate change, and making it harder for the most vulnerable communities to rise out of intergenerational poverty.
Hey! real question for the women and girls,
anyone know how to get rid of strong fishy oder "down there"? My little sister is becoming a woman and I never had a big problem with the oder but she does sadly! She needs some help, I know tea used as a wash and probiotics help, but anything else? :D thank you ladies! And some points for ya'll
Answer: it helps to get soaps and washes that are specificly for that area also change in diet, like drink more water and eat more vegatables
Explanation:
PLEASEEE EHELP THANKS! HAS TO BE CORRECT!
Analyze the example of gene expression of the bacteria below:
In this example, what would cause the genes to be expressed?
An operon that is turned off
Polymerase being blocked from bonding to the DNA
The presence of an active repressor
A repressor that is unable to bond to the DNA
Answer:
This question is incomplete as it lacks the image. The answer is:
D. A repressor that is unable to bond to the DNA
Explanation:
The expression of a gene in a prokaryote like bacteria is regulated at the transcription level. Normally, a Gene is expressed by first undergoing transcription from DNA to mRNA with the aid of an enzyme called RNA polymerase.
However, a protein called REGULATORY PROTEIN which serves as a repressor inhibits the binding of RNA polymerase to the DNA sequence. According to this question, the gene will only be expressed if the repressor is unable to bond to the DNA, hence, not being able to prevent transcription.
Which of the following is NOT a reaction of the
parasympathetic nervous system?
A. Decreased respiration
B. Decreased heart rate
C. Increased blood flow to digestive tract
D. Decreased saliva production
Answer:
D
Explanation:
D, or decreased saliva production is not a reaction of the parasympathetic nervous system (PSNS) since the PSNS actually increases/causes salivation which helps you digest your food.
As a tip, I usually associate the PSNS with a state of rest/restful conditions, as opposed to the sympathetic nervous system which is the opposite and is associated with stress and high-pressure conditions (like fight or flight).
Hope this helps!! :)
Answer:
D is the correct answer got it right on my assignment!!
Explanation:
Which of the following molecules is synthesized at specific times during the cell cycle and
forms an active complex with a kinase?
A)PDGF
B)MPF
C)Cdk
D)cyclin
Answer:
D. Cyclin
Explanation:
Cyclins drive the events of the cell cycle by partnering with a family of enzymes called the cyclin-dependent kinases (Cdks). A lone Cdk is inactive, but the binding of a cyclin activates it, making it a functional enzyme and allowing it to modify target proteins.
Cyclin is synthesized at specific times during the cell cycle and forms an active complex with a kinase.
The phases of the cell cycle are directed by a highly complex and finely regulated protein interaction network.
Among these proteins, the phosphorylating enzymes called cyclin-dependent kinases (CDKs) and their activating subunits the cyclins (A, B, D and E) stand out.
The cyclin-dependent kinases undergo phosphorylation on their amino acids (serines and threonines).The cyclins (so called because they appear and disappear throughout the cycle), bind to the CDKs and control their phosphorylation reactions.The cyclic assembly between these two compounds, cyclins and CDKs, their activation and disassembly are the central processes that direct the cell cycle.Therefore, we can conclude that cyclin is synthesized at specific times during the cell cycle and forms an active complex with a kinase..
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2. Which of the following BEST describes the effect that natural selection might have on a
species over time?
A. The fur color of a species will always change over time, because of natural selection.
B. Predator species will always increase due to natural selection, while prey species will
always die out.
C. Members of a species with traits that allow them to survive and reproduce in an
environment will increase in population, while those without those traits will die.
D. Bigger members of a species always have an advantage over smaller members. Therefore, over time, a species will eventually include larger organisms only.
Answer: i would say c
Explanation:
because if you think about it the animals have babies and they reproduce and there more species. check out my yt channel hailey azbell
What is the advantage to having two different protein-digesting enzymes, rather than just one?
answer question please
Answer:
my answer is C.
Explanation:
I hope my answer can help you
Answer: C Cells use it to deliver genetic information to the nucleus
Explanation:
What does ATP mean?
ATP stands for adenosine triphosphate. It is a molecule found in the cells of living organisms. It is said to be very important because it transports the energy necessary for all cellular metabolic activities. ... Without ATP, various metabolic activities in the human body cannot take place.
The main function of ATP?
ATP functions as the energy currency for cells. It allows the cell to store energy briefly and transport it within the cell to support endergonic chemical reactions. The structure of ATP is that of an RNA nucleotide with three phosphates attached.
can anyone help please?
What has to happen befor a cell can divide?
A: DNA has to double
B: DNA has to unwind
C: Chromosomes need to form
D: None of the above
Answer:
A: DNA has to double
Explanation:
In the process of every cell division, the cell must double "replicate" its chromosomal DNA in the process.
I NEED THESE ANSWERED PLEASE
What causes the flu?
What are common symptoms of the flu and what are complications that arise from the disease?
Do you think people can misdiagnose themselves with the flu? Explain your reasoning.
How is flu season defined? What are the criteria for this definition?
How does the flu affect businesses and governments? Could it affect residents’ access to certain resources?
Explanation:
1) The flu is caused by influenza viruses that infect the and people assume it's the flu because nose, throat, and lungs. These viruses spread when people with flu cough, sneeze or talk, sending droplets with the virus into the air and potentially into the mouths or noses of people who are nearby.
2)
Difficulty breathing or shortness of breath.Persistent pain or pressure in the chest or abdomen.Persistent dizziness, confusion, inability to arouse.Seizures.Not urinating.Severe muscle pain.Severe weakness or unsteadiness.Fever or cough that improve but then return or worsen.3) yes because they don't always know signals can have symptoms as others and they assume it as flu because it is a known sickness
4)The flu, also known as the influenza virus, is diagnosed year-round in the United States. Fall and winter seasons are when the greatest impact is usually seen and, therefore, is considered the "flu season." Influenza activity has a period of greatest activity between December and February, but the activity can last until May.
Every year at the beginning of the fall season, people are encouraged to get a flu shot.
CDC data on influenza vaccine:
• 116 million doses of influenza vaccines have been distributed.
CDC
(Centers for Disease Control and Prevention) recommends that all persons 6 months and older receive the influenza vaccine at the end of October.
• Influenza vaccination offers important benefits
5) in the attached file
A flu is a common viral infection that can be deadly if not treated on time. This is caused by the influenza virus. The common symptoms include fever, chills, muscle aches, cough, fatigue and runny nose.
What is Flu?
Flu is a viral infection caused by the Influenza virus. This is a communicable disease. The flu virus attacks the lungs, nose and throat. The respiratory system is weakened. People who have a weak immune system or have a chronic disease are more prone to flu infection.
The most common symptoms include chills, fever, headache, muscle aches, runny nose, cough and fatigue. People generally diagnose flu when they are having respiratory illness which doesn't always supposed to be flu. This misdiagnosis can complicate the situation which makes the treatment of infection difficult.
Flu season is an annually recurring period. The season occurs when its half cold in each hemisphere.
Flu is a communicable disease which lasts for approximately two-three days. During this period, an affected person is advised to stay away from other healthy people which interferes with the business and government work. Also, the residents are not advised to go in public which affects their access to certain resources.
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Briefly explain transcription and translation using the following terms: gene, RNA polymerase, tRNA, mRNA, ribosome, nucleus, codon.
Answer:
take the information in DNA and use it to produce proteins. Transcription uses a strand of DNA as a template to build a molecule called RNA. ... During translation, the RNA molecule created in the transcription process delivers information from the DNA to the protein-building machines
Explanation:
which translates mRNA. tRNA is the link between the two other types of RNA.
Read each of the statements that describe the function of a cell cycle regulator. Then drag each sentence into the correct category.
regulates checkpoints
speeds up or slows down
stops cell cycle
makes sure chromosomes
have replicated
cell cycle
Internal regulators
External regulators
Answer:
Regulates Checkpoints - growth factor and damage to DNA
Speeds up or slows down - External regulators
Stops cell cycle - When cells are growing and dividing
Make sure chromosomes have replicated - Internal regulators
Explanation:
Cell cycle is the process by which cell development happens. The body functions has the ability to control the growth of cells. When the body looses the ability to control and regulate the cell growth cycle the body is in a state of disease called cancer.
Answer:
Internal Regulators:
Regulates CheckpointsMakes sure Chromosomes have ReplicatedExternal Regulators:
Stops Cell CycleSpeeds Up or Slows down Cell CycleHope this helps
-Greg
hi can someone help me with question 1.5 thanks
whats the structure of the midbrain?
Answer:
There are three main parts of the midbrain - the colliculi, the tegmentum, and the cerebral peduncles. Of the 12 cranial nerves, two thread directly from the midbrain - the oculomotor and trochlear nerves, responsible for eye and eyelid movement.
Explanation:
I hope this helps and pls mark me brainliest :)
The process when rocks break into smaller pieces due to exposure to
natural elements is called
Answer:
Weathering.
Explanation:
Weathering is the breaking down of rocks, soils, and minerals as well as wood and artificial materials through contact with the Earth's atmosphere, water, and biological organisms.
The process when rocks break into smaller pieces due to exposure to natural elements is called weathering.
What is weathering?Weathering can occur through physical, chemical, or biological means.
Physical weathering involves the mechanical breakdown of rocks into smaller fragments without changing their chemical composition. Chemical weathering, on the other hand, involves the breakdown of rocks through chemical reactions, resulting in the formation of new minerals. Biological weathering is caused by living organisms, such as plants and animals, that can physically break down rocks or release chemicals that can alter the rocks' composition.
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