Answers
Answer:
The Earth is 4.6 Billion years old.
QUESTION 2:
Option A is the correct answer.
Hope it helps:)
Related Questions
Describe at least one
new feature you learned from this Canvas Tutorial video,
Answers
Answer:
how to canvas
Explanation:
how are red blood cells able to move through narrow vessels to carry oxygen throughout a multicellular organism?
Answers
Answer:
The correct answer is - they lack a nucleus.
Explanation:
Red blood cells or erythrocytes are anucleated, biconcave, and small specialized cell that produce in bone marrow and lacks the mitochondria at maturity. RBC plays very important role to carry oxygen from lungs to deliver it to the various parts of the body and carry out carbon dioxide from various part to back to the lungs.
Due to lack of the cell organelles and nucleus, these cells are smaller in size. The size of RBC circulate throughout the body through narrow vessels due to its specific size and shape that provide it space for hemoglobin that binds with oxygen.
Thus, the correct answer is - they lack a nucleus.
Answer:
jgjgj
Explanation:
jgjgjjgjjj-
what is the monomers that make up proteins are called ?
Answers
Answer:
Proteins are polymers; the monomers which make them up are amino acids.
Explanation:
Earth's Greatest Enemies?Climatologist James Lovelock(originator of theGaia_hypothesis ) once said that Earth's greatest enemies were cars, cows and chainsaws because of their contributions to destabilizing planetary climate.1. How do each of these things (cars, cows, andchainsaws) contribute to the destabilizing of Earth's atmosphere and climate? You must cite specificevidence from any Unit of the course to support your response. And...2. How are these three things connected to one another either by cause, effect or by solution. Consider all of the environmental concerns you have been learning about during the entire course and describe how these 3Cs as a group relate to one specific environmental issue (other than atmospheric destabilization).Reminder: Loss of land plants will not result in a reduction of atmospheric oxygen (because most of planetary photosynthesis and its resulting oxygen production is in the oceans).
Answers
Cars, cows and chainsaws are major polluters and their use must be regulated and limited, to reduce the emission of polluting gases into the atmosphere that can cause drastic climatic changes that harm the environment that we know intensely.
Although it is not widely publicized in the media and few people know about it, the chainsaw is a great villain of the earth's atmosphere, since its use releases large amounts of CO2 into the atmosphere, due to the burning of gasoline that these machines make to work. CO2, in addition to endangering the operator's life, is a gas that destroys the ozone layer and increases the effect of global warming. Not only does the chainsaw release this gas, but so do cars, which reinforces the need to use renewable fuels to be used in both cases.
Cows also release polluting gas, methane, which has a greater polluting potential than CO2. Methane is the result of the cow's digestive reactions, which release this gas into the atmosphere steadily. As herds of cows tend to be large, livestock becomes a major polluter, as herds result in a strong release of methane into the environment. This reinforces the need for increasingly stronger regulations for livestock, in addition to highlighting the importance of adopting alternative methods of feeding that reduce meat intake.
1.) You decide to clean the bathroom. You notice that the shower is covered in a strange green slime. You decide to try to get rid of this slime by adding lemonade juice. You spray half of the shower with lemonade juice and spray the other half of the shower with water. After 3 days of “treatment”, there is no change in the appearance of the green slime on either side of the shower.
Independent Variable:
Dependent Variable:
Control:
Conclusion:
Answers
Answer:
The correct answer is :
Independent Variable: side of the shower with lemon juice
Dependent Variable: cleanliness of shower
Control: spray of water
Conclusion: lemonade juice have no effect on slime
Explanation:
Independent variable in any experiment is the variable that is changed or manipulated as here side of the shower that is sprayed with lemonade juice is manipulated to see if there is any effect on the cleanliness of shower.
Dependent variable is the variable that is observed or measured to check if manipulated variable or independent variable have any effect on it, like the cleanliness is measured to check if lemonade juice clean the slime of the side or not.
The control is something that remains the same to check the condition or effect that is not changed or can be compared to it. Water spray is control in this case.
The conclusion of this experiment is that there is no effect of lemonade juice on the cleanliness of slime present in the shower
In any experiment, an independent variable is the variable that is altered or manipulated, such as the side of the shower that is sprayed with lemonade juice to determine if it has any influence just on cleanliness of the shower.
This dependent variable is a variable that can measure Lemonade a manipulated variable or independent variable has any effect on it, such as whether lemonade juice cleans the slime off of the side or not.
A control is something that remains unchanged to assess the condition or impact which has not changed or may be contrasted to it. In the this scenario, the water spray is under command.
The experiment concludes drinking lemonade seems to not influence the cleaning of slime inside the shower.
Each side of the shower with lemon juice is an independent variable.Shower cleanliness is a variable.A water spray can be used to keep things under control.In conclusion, lemonade juice does not affect slime.Learn more:
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igneous rock can easily be identified through their
Answers
Answer:
Explanation:
Igneous rocks can be identified by the determination of the composition and texture of the rock.
What are two basic differences between DNA and RNA? RNA is usually single stranded, while DNA is usually double stranded. RNA contains uracil, while DNA contains thymine. RNA is usually double stranded, while DNA is usually single stranded. RNA contains thymine, while DNA contains uracil. RNA doesn’t contain cytosine, while DNA doesn’t contain adenine.
Answers
Answer:
Explanation
the two basic difference between RNA and DNA are
RNA is single stranded while DNA is double stranded
RNA contain uracil and DNA contain thymine
Answer: I just took the test
Explanation:
Here's the picture
Which description bets fits the definition of behavior?
A. How an organism responds to internal and external stimuli.
B. An equal but opposite reaction.
C. When an adolescent organism is acts poorly.
D. How an animal acts when it is threatened.
Answers
Answer:
i think its D!
Explanation:
The description that best fits the definition of behavior is how an organism responds to internal and external stimuli. Thus, the correct option is A.
What is Behavior?A behavior may be defined as the observable response of an organism in response to numerous external or internal stimuli.
The organisms may possess some behaviors that are directly inherited from their parents. These behaviors are known as innate or inborn behaviors. while some are learned behavior. Some are mixed in nature.
Therefore, the description that best fits the definition of behavior is how an organism responds to internal and external stimuli. Thus, the correct option is A.
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Lasix is a diuretic that blocks the reabsorption of sodium in the ascending loop of Henle. The result of giving this drug would be
Answers
Answer:
Reduced extracellular fluids within the kidney, reduced blood pressure.
Explanation:
The loop of henle, which are located within the nephrons in the kidney, have a task of acquiring the water and NaCl from the blood and keeping enough of it in the body so that the homeostasis is maintained.
The result of giving Lasix that reduces the amount of NaCl reabsorption would first of all be "reduced extracellular fluids within the kidney" and it would also change the pH level of the blood and drop blood pressure levels.
I hope this answer helps.
Birds belong to different species but share similar characteristics. What inference can be correctly drawn about this statement?
Answers
What is the importance of blood group systems?? Please help ASAP
Answers
Answer:
The accurate grouping of blood is very important because when it comes to blood donation .if a blood is given to a patient that has a blood incompatible with the blood type of the blood that the patient receives, it can cause intravenous clumping in patients blood which can be fatal.
hope this helps you :)
Explanation:
Answer:
The ABO classification is the most important and relevant for blood compatibility. A small number of antigens and antibodies are responsible for the ABO blood types. The specific combination of these components determines an individual's type in most case
Explanation:
Glucose enters erythrocytes via a GLUT-1 uniporter. As the levels of glucose in the bloodstream decrease between meals, what happens to the glucose in the cells? A. Glucose leaves the cell through the GLUT-1 uniporter, traveling down the new concentration gradient. B. Glucose remains in the cell because uniporters can only transport in one direction. C. Glucose remains in the cell because the GLUT-1 uniporters are gated and the gates close at low glucose concentrations. D. Glucose remains in the cell because it has been phosphorylated and no longer has affinity forthe GLUT-1 uniporter.
Answers
Answer:
A. Glucose leaves the cell through the GLUT-1 uniporter, traveling down the new concentration gradient.
Explanation:
The Glucose transporter 1 (GLUT1) protein is a critical uniporter transporter that facilitates the movement of glucose molecules across the plasma membrane. The expression of GLUT1 is increased when glucose concentration is reduced and, inversely, GLUT1 expression is reduced when glucose levels are increased. The erythrocytes are cells that continuously require the supply of glucose from the blood plasma, this mechanism involves the function of GLUT1 that permits the energy-free passage of glucose by diffusion.
Releasing factors are secreted by the a. pineal gland. b. pancreas. c. hypothalamus. d. pituitary gland.
Answers
Answer:
C) Hypothalamus
Explanation:
The hypothalamus is the part of the brain that lies below the thalamus and over the pituitary gland.
The hypothalamus is the source of various important releasing factors and hormones that stimulate the release of other hormones from the endocrine glands in the body. Examples of releasing factors include;
1) Prolactin-releasing factor which regulates the release of prolactin.
2) Somatotropin-releasing factor which regulates the release of somatotropic hormone, also known as growth hormone.
3) The corticotropin-releasing factor which regulates the release of adrenocorticotropic hormone.
Which of the following are correct regarding carbohydrates?
Answers
Answer:
Anomeric carbon comes from the corresponding aldehyde or ketone
what is the difference between Eukaryotes and prokaryotes
Answers
Answer:
Prokaryotes are unicellular organisms that lack membrane-bound structures, the most noteworthy of which is the nucleus. Prokaryotic cells tend to be small, simple cells, measuring around 0.1-5 μm in diameter.While prokaryotic cells do not have membrane-bound structures, they do have distinct cellular regions. In prokaryotic cells, DNA bundles together in a region called the nucleoid.Eukaryotes are organisms whose cells have a nucleus and other organelles enclosed by a plasma membrane. Organelles are internal structures responsible for a variety of functions, such as energy production and protein synthesis.Eukaryotic cells are large (around 10-100 μm) and complex. While most eukaryotes are multicellular organisms, there are some single-cell eukaryotes.Lactase is an enzyme that breaks down a sugar found in dairy products known as lactose. Some people are lactose intolerant, and this can be due to not having enough lactase production. People who are lactose intolerant may not feel well after eating foods containing lactose.
identify enzyme:
identify substrate:
Describe the relationship between the substrate and enzyme in the scenario:
Answers
Answer:
Identify enzyme: Enzymes are named by adding the suffix -ase to the name of the substrate that they modify or the type of reaction they catalyze(dehydrogenase, decarboxylase)
Identify substrate: the substrate is a molecule upon which an enzyme acts.Enzymes catalyze chemical reactions involving the substrate(s). In the case of a single substrate, the substrate bonds with the enzyme active site, and an enzyme-substrate complex is formed.
Describe: Enzymes bind with chemical reactants called substrates. There may be one or more substrates for each type of enzyme, depending on the particular chemical reaction. In some reactions, a single-reactant substrate is broken down into multiple products. ... The enzyme's active site binds to the substrate.
I hope this helps :)
The enzyme in this case is lactase and the substrate is lactose.
What is the enzyme-substrate relationship?In biochemistry, the molecule on which an enzyme operates is known as the substrate. Enzymes catalyze chemical reactions involving the substrate(s). The substrate is changed by the active site into one or more released products. The active site is then ready to accept a fresh substrate molecule.
To catalyze a reaction, an enzyme will grab (bind) to one or more molecules of the reactant. These substances serve as the enzyme's substrates. In certain reactions, a single substrate can be broken down into a variety of products. Others involve the joining of two substrates to create a larger molecule or the switching of parts. In fact, every biological reaction may probably be sped up by an enzyme.
The fundamental idea should be relatively evident despite slight differences in the definitions of the substrate in general chemistry and biology. A substrate is commonly understood in chemistry as a chemical substance that may be changed by the action of another substance. Without the aid of an external catalyst or enzyme, the transformation takes place in the substrate itself, and in most cases, given enough time, it may happen on its own.
Therefore, lactase is the enzyme and lactose is the substrate.
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In A Oil Spill why Does the Oil not mix with the Sea Water A.Lipids are hydrophobic. A.Lipids are hydrophilic. A.Lipids are saturated. A.Lipids are unsaturated.
Answers
Answer: A. lipids are hydrophobic
Where should the label for the dependent variable be written for this scatter plot?
Answers
Answer:
B. Position B
Explanation:
The values for dependent variable are plotted on the y-axis (vertical) on a scatter plot. Therefore, the label for the dependent variable would be written along the vertical axis for the scatter plot, at position B.
The label for independent variable would be written along the horizontal axis for the scatter plot, at position C.
The answer is "B. Position B"
Describe how a lysosome enzyme would normally be created, including the steps involved and the organelles that contribute to the process
Answers
Answer:
Lysosomal enzymes are produced in the ER and transported to the Golgi complex to be finally incorporated into acidified vesicles
Explanation:
Lysosomes organelles are generated by the fusion of vesicles from the Golgi complex with endosomes. This organelle contains more than 50 types of hydrolytic enzymes capable of breaking down different macromolecules. Lysosomal enzymes are produced in the endoplasmic reticulum (ER), and then they are exported to the Golgi complex, where mannose-6-phosphate (M6P) label is added to be finally packaged into acidified vesicles. Mutations in the genes that encode for lysosomal enzymes are known to produce Lysosomal Storage Diseases (LSD) including Tay-Sachs disease.
What should be the new hypothesis in the strange case of beriberi ?
Answers
Answer:
Beriberi is a disease caused by lack of vitamin B-1 called thiamine disease in the body.
Which describes the complex carbohydrate cellulose? It is composed of a complex arrangement of glucose molecules. It is composed of a complex arrangement of many kinds of macromolecules. It is composed of a complex arrangement of chitin molecules. It is composed of a complex arrangement of multiple disaccharides.
Answers
Answer:
It is composed of a complex arrangement of glucose molecules
Explanation:
Cellulose is a carbohydrate (glucose) polymer that comprises the cell wall of plant cells. It confers rigidity upon the cell wall of plants. Cellulose is also considered to be the most abundant compound on Earth due to the fact that vegetation is ubiquitous.
Cellulose is structurally composed of linear chains of thousands of D-glucose molecules linked together by B-1,4-glycosidic bonds. Cellulose is a complex carbohydrate made up of glucose molecules arranged in an unbranched manner.
Answer:
Here is the answer for #8 on Edge2021
Explanation:
A falling blood pH and a rising partial pressure of carbon dioxide due to pneumonia or emphysema indicates ________.
A) respiratory acidosis
B) metabolic acidosis
C) respiratory alkalosis
D) metabolic alkalosis
Answers
A. respiratory acidosis
Blood analysis indicates a low pH, and the patient is breathing rapidly.
A decrease in blood pH and an increase in carbon dioxide partial pressure due to pneumonia or emphysema signifies respiratory acidosis. The correct option is A.
What is respiratory acidosis?Respiratory acidosis arises when the lungs are unable to eliminate all of the carbon dioxide made by the body. This induces body fluids, notably blood, to become overly acidic.
A decrease in blood pH and an increase in carbon dioxide partial pressure due to pneumonia or emphysema signifies respiratory acidosis.
Thus, the correct option is A.
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If you have a density of 100 kg/L, and a mass of 1000 units, what are the mass units? and what is the volume?
Answers
Answer: Volume is 10
Explanation: v=m/p
= 1000 kilogram/100kilogram/cubic meter
= 10 cubic meter
Answer:
Volume is 10
Explanation:
Marking as Brainliest
why is the chemical formula for disaccharides not two times that of the Monosaccharide.
Answers
Answer:
I DO
Explanation:
PLEASE HELP ME!!!! This figure shows two alleles for the beta-globin gene. The A allele is the most common allele. The S allele is responsible for Sickle Cell Disease. The R group glutamic acid is negatively charged, while the R group of valine is hydrophobic. What molecular change, ultimately resulting in the sickle cell phenotype, occurs when valine in substituted in place of glutamic acid at position 6 in the β subunit of hemoglobin?
Answers
Answer:
The correct answer is option B. The tertiary structure of the beta subunit changes, exposing a hydrophobic cleft which allows hemoglobin to form long chains in RBC.
Explanation:
As it is clearly mention as there is point mutation that leads to single nucleotide change which results in to valine instead of glutamate. Valine is hydrophobic in nature not like glutamate. Valine aggregate and makes a rigid structure of molecules.
Due to this rigid molecule of valine aggregates, RBCs form a crescent or sickle like shape due to the higher viscosity and low solubility of Mutated hemoglobin in deoxy condition. It leads to formation of polymer that blocks the vessels.
Thus, the correct answer is option B.
two scientists do not agree on which type of grocery ba is better for the environment
Answers
Answer:
The most likely outcome of their disagreement is the use of cloth tote bags.
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Which is an innovation of gymnosperms?
Gymnosperms are the first seed plants.
Gymnosperms are the first flowering plants.
Gymnosperms are the first vascular plants.
Gymnosperms are the first spore-bearing plants.
Answers
An inmovatuon of gymnosperms is that gymnosperms are the first flowering plants which produce seeds and fruits from their flowers.
What are gymnosperms?Gymnosperms are flowering plants which produce seeds and fruits from their flowers.
The development of flowers in gymnosperms was very significant as it helped in the propagation of the plants.
The flowers attracted pollinators and the fruits too attracted seed dispersers. As a result gymnosperms became dominant among plants.
Therefore, gymnosperms are the first flowering plants.
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Answer:
B. first flowering plants
Explanation:
Edge 2023
Which of the following statements is NOT true of
consumers?
A. They receive their energy indirectly from the
sun.
B. They are also called heterotrophs.
C. They are able to synthesize their own food.
D. They can sometimes eat other consumers.
Answers
C)
Explanation:
They are not able to synthesise their own food
The statement that is not true about the consumers is that they are able to synthesize their own food. The correct option is C.
Who is a consumer?In biological terms, a consumer is an organism that consumes other plants and animals to get energy. They are after the producer in the food chain. They are unable to produce their own food.
Except for plants, all other organisms are consumers, they do not have chlorophyll present in their blood, to trap sunlight.
Thus, the correct option is C. They are able to synthesize their own food.
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How do living things differ from nonliving things?
Answers
Answer: living things such as “human beings”, “animals”, “plants”, and “microorganisms”.. Nonliving things do no exhibit any characteristics
Explanation: Nonliving things do not grow,respire, need energy, move, reproduce, evolve, or maintain homeostasis. They are made up of non living materials
Answer:
well essentially living things
respire/breathreproduceeat and growwe move, we respond to situations and we feel.
while non-living things
don't breathedon't reproducedon't eat or growand they don't feel or respondexamples of living things are humans, animals, plants and germs
and examples of non-living are plastic, water, buildings etc
Hope this helps (✿◠‿◠)
A powerful approach to identifying genes of a developmental pathway is to screen for mutations that suppress or enhance the phenotype of interest. This approach was undertaken to elucidate the genetic pathway controlling C. elegans vulval development. .
Part A
A lin-3 loss-of-function mutant with a vulva-less phenotype was mutagenized. Based on your knowledge of the genetic pathway, what types of mutations will suppress the vulva-less phenotype?
Check all that apply.
A. gain-of-function intracellular signal molecule (LET-60) activated by lin-3 mutants
B. loss-of-function intracellular signal molecule (LET-60) activated by lin-3 mutants
C. loss-of-function lin-3 receptor mutants
D. loss-of-function lin-3 mutants
E. gain-of-function lin-3 receptor mutants
Part B
In a complementary experiment, a gain-of-function let-23 mutant with a multi-vulva phenotype was also mutagenized. What types of mutations will suppress the multi-vulva phenotype?
Check all that apply.
A. gain-of-function intracellular signal molecule (LET-60) activated by lin-3 mutants
B. gain-of-function lin-3 receptor mutants
C. loss-of-function lin-3 receptor mutants
D. loss-of-function intracellular signal molecule (LET-60) activated by lin-3 mutants
Answers
Answer:
A. gain-of-function intracellular signal molecule (LET-60) activated by lin-3 mutants
E. gain-of-function lin-3 receptor mutants
Explanation:
Genetic suppressors are widely used in molecular genetics to study gene function in specific developmental stages and target tissues. Suppressing mutations are second mutations triggered at a different site from the mutation of interest in order to suppress the phenotypic effects caused by the first mutation. Caenorhabditis elegans is a model organism to produce genetic suppressors by taking advantage of its rapid generation time and large populations, which enables the application of rapid and powerful mutation screening procedures in the same experiment. In addition, this species reproduces by self-fertilization, thereby both dominant and recessive suppressors can be easily obtained.