Answer:
Sigma factors bind to the promoter region of a particular gene and facilitating the binding of RNA Polymerase to the promoter region (formation of the RNA polymerase holoenzyme complex) in order initiate transcription of the gene.
Put simply - Helps RNA Polymerase do it's job.
Describe one way that burning rain forest trees affects nutrient cycling differently than cutting them down and leaving them on the forest floor.
Burning trees releases co₂ in the atmosphere, but cutting down trees falling on the ground nutrient returns to the land. Plants which is falling down decomposes and nutrient return to the soil.
How do trees affect the nutrient cycle?Deforestation affects the nutrient cycle because plants are the storage site of many nutrients. The nutrient cycle is interconnected with plants most of the nutrient is directly absorbed by the soil.
Plants absorb nutrients from the soil, and the animal takes nutrients from the plants, when an animal dies its body decomposes in the soil again nutrient dissolve in the soil.
Burning plants releases stores of nitrogen, carbon, and sulfur these create a loss in biodiversity and affect the nutrient cycle.
Therefore burning rainforest affects the nutrient cycle by releasing nutrient components in the atmosphere, so cutting down does not affect
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Which group of biological molecules is a source of energy in cells?.
Answer:
Adenosine 5'-triphosphate, or ATP
Explanation:
This molecule is made of a nitrogen base (adenine), a ribose sugar, and three phosphate groups.
Paneth cells ________. secrete bicarbonate ions secrete enzymes that kill bacteria secrete hormones secrete digestive enzymes
Answer: Secrete enzymes that kill bacteria
Explanation:
Paneth cells secrete enzymes that kill bacteria.
Answer: Secrete digestive enzymes
A foreign substance that invades your body is called an:.
Answer:
an ANTIGEN
Explanation:
a foreign substance that invades your body is called an ANTIGEN. 8. When your body detects an antigen, antibodies are made and lock onto it. Once an antigen is recognized, your immune system can remember it the next time and protect you from getting sick again.
A biologist is conducting an experiment with seeds and will need many materials each week that will only be used one time before being discarded. What type of
management is involved in purchasing the consumable materials?
Equipment management
Regulation management
Supply management
Structure management
Answer: C. Supply management
A biologist is conducting an experiment with seeds and will need many materials each week that will only be used one time before being discarded. What type of management is involved in purchasing the consumable materials?
A: C. Supply management
Which of the following is more likely to be completed by a leader than by a manager?
A: B. Encouraging others to use their creativity
Multiple people became ill after eating the same produce in a restaurant dish. Which of the following food safety practices would help consumers the most?
A: D. Tracing the food item to its original source
Which of the following is a leadership skill that many people find to be one of the most important?
A: A. Communication
Hope this could help you!
An object that is 5mm (1mm = 0.001m) long looks 10cm long underneath a microscope. What is the magnification of this microscope?
Molluscs with a ventrally flattened foot that move via muscle contractions along this structure are called
Gastropods are centrally flattened molluscs that move via muscle contractions.
What are gastropods?Gastropods are invertebrates animal that belong to the phylum molluscs. Examples of gastropods are snails and slugs. The lol be in either salt water or freshwater or land. Their body parts include head,mantle, body mass and shell. They have muscular foot which help in movement through muscular contractions.
Therefore, Gastropods are centrally flattened molluscs that move via muscle contractions.
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Inflation can be calculated in terms of how the overall cost of ___________________ changes over time.
Inflation can be calculated in terms of the overall cost of Consumer Price Index changes over time.
How Inflation can be calculated?The price of each item or product is taken as averaged on a monthly basis. Then the Consumer Price Index is calculated by dividing the price of a market basket in a specific year divided by the price of the same basket in the base year.
So we can conclude that Inflation can be calculated in terms of the overall cost of Consumer Price Index changes over time.
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will mark brainliest!!
identify the selectively permeable barrier of the cell that allows certain molecules to enter and exit the cell
-A
-C
-E
-F
Answer:
Choice E.
The plasma membrane is a selectively permeable barrier which allows only certain substances to enter and exit the cell.
The selectively permeable barrier of the cell that allows certain molecules to enter and exit the cell is F, which is the cell membrane or plasma membrane.
How cell membrane is composed?The cell membrane is composed of a lipid bilayer that separates the interior of the cell from the external environment, and contains various proteins that control the movement of molecules in and out of the cell.
The cell membrane is selectively permeable, meaning it allows some molecules to pass through while preventing others from crossing.
This is essential for maintaining the internal environment of the cell and regulating the exchange of nutrients, waste products, and other substances with the outside world.
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Please Help!!!!!!!!!!!!!!!!!!!!!!!!!!!
Explanation:
both, don't you agree, maybe, maybe not
Answer:
the answer i typed wont submit. Can i message to submit?
Explanation:
The tone of King Long Shanks and The Emperor’s New Clothes are both the same.
Please select the best answer from the choices provided
T
F
Answer:
False
Explanation: I completed the assignemnt
When homologous chromosomes fail to separate during meiosis, this is termed.
Answer:
Nondisjunction
Explanation:
Nondisjunction is the failure of homologous chromosomes (chromatids) to separate properly during meiotic cell division.
Question 2 of 35
The rock shown below was formed when small particles
were deposited in the water and then pressed together
over time. It contains small bits of the remains of sea
animals.
Which type of rock is this?
Answer:
it's a sedimentary rock containing fossils probably.
If a pea plant’s alleles for height are tt, what is true of its parents? (Select all that apply.)
Where T is tall and t is short.
- Both parents contributed a dominant allele.
- Both parents were short.
- Both parents contributed a recessive allele.
- Both parents were tall.
Answer:
Both parents contributed a recessive allele.
Both parents were short.
this is because a recessive allele will only express itself in the absence of dominant allele
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The Correct choice is C
If plant's allele is tt, then it means that the plant got both short (recessive) allele from both parents.
what happens after point A in regard to the population and resources available at that point in time?
Answer: there are enough available resources for the population
Explanation: the resources and the population is steady however over time the population increases in which there will be not enough resources. I hope this helped I’m doing the same thing lol :)))
In Point A, with regard to the population and resources available at that point in time, the populace has access to ample resources.
What is a population?The term “population” refers to all citizens who are either permanently residing in a country or who are just passing through. This indicator reveals how many people typically reside in a certain area.
Growth rates are the population changes that occur each year as a result of births, deaths, and net migration. The resources and the population are stable, but as the population grows, fewer resources will be available.
Populations can include but are not limited to, individuals, animals, organizations, structures, buildings, cars, farms, objects, or occasions.
Therefore, in Point A, the population has access to enough resources given the population and resources available at that time.
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Support the following claim: All primates have a common ancestor. use multiple lines of evidence (anatomical, DNA, and embryological evidence) to support the claim. compare the value of each type of evidence, and explain which type of evidence is most valuable for determining evolutionary relationships.
Evidence such as similarity in DNA make-up, embryological and anatomical similarity shows that primates share a common ancestor.
What are primates?Primates are mammals which belong to the order primates.
Primates have unique features such as:
prehensile five-digit hands and feetpossession of flat nails instead of claws acute vision with depth perception due to forward-facing eyesPrimates include man, monkeys, chimpanzee, etc.
The primates share a common ancestor as their anatomical structure are similar with hands and feet.
Embryologically, they are similar too and they share over 90% of their DNA in common.
Based on value, the DNA evidence is the most supportive of common ancestors as the DNA determines the other features of the primates.
Therefore, evidence such as similarity in DNA make-up, embryological and anatomical similarity shows that primates share a common ancestor.
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Why is a random dispersal pattern quite rare in nature?.
The shoulder and hip joints are similar because they are both: __________
a. biaxial joints. b. ball-and-socket joints
Answer:
The shoulder and hip joints are similar because they are both: ball-and-socket joints. The coxal joint is an articulation formed by: the head of the femur and the acetabulum.
Explanation:
brainliest pls
Which of these is not an advantage of the arthropod exoskeleton?.
Answer:
One major disadvantage is the need to molt. Arthropods are highly vulnerable during this time, since the new exoskeleton starts out very soft and needs some time to harden. Until it hardens completely, the animal has almost no protection.
Explanation:
Stay safe :)
In the biology lab, you observe animal cells under a microscope. In one slide you see the nucleus with two nucleolus areas of compact chromatin. The value in packaging DNA in tighter forms of chromatin is for Group of answer choices prevention of ligase enzyme action during replication. regulation and protection of the DNA during transcription. ensuring that sister chromatids will be attached prior to replication. mobility and protection of the DNA molecule during mitosis. both DNA mobility and protection and regulation in mitosis and transcription.
The value in packaging DNA in tighter forms of chromatin is for both DNA mobility and protection and regulation in mitosis and transcription.
What is chromatin?Chromatin is a formation inside the nucleus of eukaryotic cells where DNA is groped together with specific proteins.
These proteins (histone proteins) act to help to regulate the expression of genes during transcription.
In conclusion, the value in packaging DNA in tighter forms of chromatin is for both DNA mobility and protection and regulation in mitosis and transcription.
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A rabbit gathers and stores food when it becomes scarce. This rabbit is showing a seasonal change for ________.
A. winter
B. spring
C. summer
D. fall
C. summer satingin kolang
What cell organelle is involved in joining amino acids to form a protein?.
Answer:
Ribosomes
Explanation:
Ribosomes like amino acids together to form proteins.
What is homeostatis? a.how organ systems develop with organs that have related functions B.the process of cells specializing to form tissues C.the way that the body is organized D.how the body keeps its internal environment stable
Answer:
D. how the body keeps its internal environment stable
Explanation:
Homoestasis is any process that living things use to actively maintain fairly stable conditions necessary for survival.
In an individual heterozygous for a single trait, the probability of the recessive allele being present in a gamete is ______. Multiple choice question.
In an individual heterozygous for a single trait, the probability of the recessive allele being present in a gamete is 50 percent.
What is an Allele?
This can be referred as the variant form of a gene. In an individual heterozygous for a single trait there is the presence of the dominant and recessive allele present in the gamete.
This however means that the probability of the recessive allele will be 1/2 which is equal to 50 percent.
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During metaphase I, the homologous chromosomes align at the spindle equator with each homologue Question 3 options: facing the same spindle pole. facing both spindle poles. facing opposite spindle poles. not facing either spindle pole. being separated into two sister chromatids.
During metaphase I, the homologous chromosomes align at the spindle equator with each homologue facing opposite spindle poles.
What is metaphase stage?The metaphase stage of meiosis is the stage where the chromosomes/chromatids align at the center or equator of the cell in preparation for separation.
However, in metaphase I, homologous chromosomes are aligned at the center of the cell.
Each homologous chromosome face opposite spindle poles during this stage.
Therefore, during metaphase I, the homologous chromosomes align at the spindle equator with each homologue facing opposite spindle poles.
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In gel electrophoresis, how are the dna samples added to the wells?.
DNA samples are added into wells with the help of electric current because of the presence of charges.
How dna samples added to the wells?DNA samples are added into wells at one end of a gel whereas an electric current is applied to pull them through the gel. DNA fragments are negatively charged, so they move towards the positive electrode.
So we can conclude that DNA samples are added into wells with the help of electric current.
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Why is it important to study Physiology?
Answer:
It offers a radical expertise of everyday body feature, permitting extra effective treatment of unusual or ailment states.
Explanation:
Which type of genetic drift occurs when many members of a population die, resulting in a great loss of genetic diversity?.
Answer:
Genetic drift is a process in which allele frequencies within a population change by chance alone as a result of sampling error from generation to generation. Genetic drift is a random process that can lead to large changes in populations over a short period of time.
where did the sergent major morris get the monkeys pawl
Answer:
in a sewer
gate ♤ hope this is it
Draw the flowchart that illustrates the levels of organization from cells to organ systems
Explanation:
this is simple
if you went more explanition search about this