Explanation:
Stem or its branches get modified into green thread like leafless structures called tendrils which are meant for climbing. These may be branched or un-branched. A scale leaf is always present at the point of branching of the tendril.
Which of the following involves pathogens or an invading viruses or bacteria
A- T cell
B- B cell
C- macrophage
D- red blood cell
Answer: Macrophage
Explanation: Macrophage is the first line of immune defense against invading pathogens like virus and bacteria.Macrophages kill their prey with acids.
Choose all the answers that apply.
The earth's atmosphere:
is made mostly of oxygen
helps recycle water
protects the earth from harmful radiation
reduces the temperature extremes between day and night
recycles carbon dioxide and oxygen
Answer: all of the answers should be correct
Explanation:
- there is mostly oxygen in the atmosphere although there are many other types f gasses such as methane and carbon dioxide
- the water cycle requires the atmosphere as a part therefore recycling water
- the layer protects us from very harmful uv rays that can cause cancer to the skin
- the rest are self explanatory
Answer:
1 False. It is made mostly of Nitrogen
2 True It does recycle water
3 True. It does protect the earth from harmful radiation
4 True. It does reduce the temperature extremes between day and night
5 True. It recycles Carbon dioxide and oxygen
Explanation:
I had this on my quiz
For number 2: It is a part of recycling water, so if this is wrong then oof
WARNING: I haven't finished my quiz so ill let you know when im done/ and what the results are:)
Henry was studying two populations of the same species of lizards. One population lived on an island and the other lived on the mainland. Both populations were affected by a hurricane that hit the island and the mainland with equal force. A year later, Henry was testing the gene frequency and saw a decrease in genetic variation in the island species, but not in the mainland species. Which best describes a conclusion he might have reached? Gene flow greatly affects small populations, but large populations can recover. Genetic drift greatly affects small populations, but large populations can recover. Gene flow greatly affects large populations, but small populations can recover. Genetic drift greatly affects large populations, but small populations can recover.
Answer:
The correct option is Genetic drift greatly affects small populations, but large populations can recover.
Explanation:
Genetic drift is an evolutionary mechanism in which the allelic frequencies in a population change through many generations. Its effects are harder in a small-sized population.
Genetic drift results in some alleles loss, even those that are beneficial for the population, and the fixation of some other alleles by an increase in their frequencies. The final consequence is to randomly attach one of the alleles.
Genetic drift has important effects on a population when this last one reduces its size dramatically because of a disaster -bottleneck effect- or because of a population split -founder effect-.
In the exposed example, the hurricane caused a disaster in both populations, reducing the number of individuals on the island and in the mainland. Henry saw a decrease in genetic variation in the island species, but not in the mainland species. This could be because the island population was smaller than the mainland population, so it was more affected by the disaster. The loss of some alleles in the population caused a decrease in genetic variation in the island population.
Answer:
The answer is B.
Explanation:
The bottom two answers don't make sense and the first one is unrelated.
Select the correct answer. A normal appearing couple is found to be heterozygous recessive for albinism. Both have the genotype Aa. The gene responsible for albinism is recessive to the normal pigment-producing gene. What are the chances of their children being albino? A. 3:4 children will be albino. B. All children will be albino. C. 1:4 children will be albino.
Answer:
C. 1:4 children will be albino.
Explanation:
Hope it helps.
Coal-fired power plants release emissions such as nitrogen compounds into the air. The nitrogen and water cycle combine when nitrogen returns to the soil as acid rain through which water cycle process?
Answer:
Precipitation
Explanation:
Precipitation refers to the falling of the condensed form of water vapor as a result of gravity. The given excerpt presents the process of precipitation of Nitrogen along with the water vapor. The nitrogen gets mixed along with the water vapor and returns to the soil. This process of returning after passing through the process of condensation is termed to be precipitation.
Which of the following answer choices would be a sex chromosome aneuploidy in a human? Choose 1 answer: Choose 1 answer: A A sperm has one X chromosome. B An egg contains two X chromosomes. C A female gamete contains one X chromosome. D A male gamete has only one Y-chromosome.
The answer you are looking for is B.If fertilized by a sperm cell that contains a Y chromosome the individual will suffer from Klinefelter syndrome. If fertilized by a sperm cell that contains an X chromosome the individual will suffer from triplo X syndrome.Both heterosomal aneuploidies.
The following choice would be a sex chromosome aneuploidy in a human is that a sperm has one X chromosome. Option A is correct.
Sex chromosome aneuploidy is a condition in which a person has an abnormal number of sex chromosomes. The normal number of sex chromosomes in a human is 46, with 23 chromosomes in each sex cell. Females have two X chromosomes in their sex cells, while males have one X chromosome and one Y chromosome in their sex cells.
A sperm with one X chromosome is an example of a sex chromosome aneuploidy because it has one fewer X chromosome than the normal number. This condition is called Turner syndrome, and it is characterized by short stature, underdeveloped ovaries, and other physical abnormalities.
The other answer choices are not examples of sex chromosome aneuploidy because they do not involve an abnormal number of sex chromosomes. Option A is correct.
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Is Columbian Cuban a race or ethnicity
Answer: a religion
Explanation:an ethnicity
The _____ law of thermodynamics states that not all energy is used because _____. A.) first; some of the energy disperses as heat b.)second; some of the energy is destroyed c.)first; some of the energy is destroyed second; d.)some of the energy disperses as heat
Answer:
second)some of the energy disperses as heat
Explanation:
This second law of thermodynamics states that in the course of conversion of energy from one form to another in an organisms,this can not be 100% efficient ( there is constant increase in entropy of the systems in the organism)as some of the energy is dissipated as heat in the course of conversion.
Thus in a food chain as energy is been converted from one trophic level( primary consumer) to another( secondary consumer) these organism makes use of the energy to do biologic work.Therefore as this is passed to other organism in the tropic levels not all the initial energy will be available ,as some has been lost during biology work,respiration , excretion ,movements and locomotion. in the subsequent organisms.
Thus the entropy of the organisms involved increases as energy is been transmitted from one trophic level to another which leads to heat dispassion.
Answer:
The answer is B
The diagram shows the inside of a eukaryotic cell
Which process occurs in the structures that are labeled X
Which is one piece of information that astronomers use to calculate the age of the universe?
A: dark energy
B: the age of rocks on Earth
C: the current motion of inner planets
D: patterns of background radiation
The age of the universe can be calculated with the Patterns of background radiation.
Patterns of background radiation is the information that helps the astronomers in order to calculate the age of the universe. Astronomers estimate the age of the universe in many ways i.e.
Patterns of background radiation, looking for the oldest stars and measuring the rate of expansion of the universe. Patterns of background radiation helps to calculate the age of the universe so we can say that patterns of background radiation is used by the astronomers to calculate the age of universe.
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One piece of information from the options listed that can be used to calculate the age of the universe is : Patterns of background radiation( D )
some of the ways astronomers can use to determine the age of the universe or the age of any planet is by studying the oldest piece found in the universe or planet. like studying the oldest stars.
The universe is believed to have been formed from the Big Bang as explained in the Big bang theory therefore looking for patterns of background radiation from naturally occurring radioactive materials is one piece of information that astronomer needs to determine the age of the universe. while
The age of rocks on earth can only be used to determine the age of the earth and not the universe.
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Write two differences between the muscles present in limbs, wall of alimentary canal and heart.
please answer this
The muscles present in limbs(striated muscles) contain cells that are multinucleated with periferal nuclei.Their contraction is voluntary.
The muscles present in the wall of the alimentary canal contain smooth fibers
with a central nucleus.The smooth fibers are not striated.
The cardiac muscle contains ramified fibers.These fibers are connected by
intercalary discs.
Ji wants to write an example of a frameshift mutation using the following sentence: THE CAT SAW THE RAT. Which sentence best shows a frameshift mutation? THC ATS AWT HER AT. CAT THE SAW RAT THE. EHT TAC WAS EHT TAR. THE THE CAT SAW THE RAT.
Answer:
A : THC ATS AWT HER AT.
Explanation:
just took the quiz ! hope this helps anyone who needs it ! :}
The sentence that best shows a frameshift mutation is "THC ATS AWT HER AT", option 1 is correct.
A frameshift mutation is one of the many kinds of mutations that can occur in a DNA sequence. It is considered a frameshift, because it alters the frame of the sequence, changing the way it will be processed. There are three things that can cause a frameshift mutation:
InsertionDeletionDuplicationIn this case, the letter "E" from our original sentence was removed. This is an example of a deletion. This can be seen to be a frameshift mutation because by removing a letter, it entirely changes our ability to properly read and process the sentence.
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Which two objects in space formed from the huge disk of ice and debris beyond the outer planets? Pluto and comets comets and Neptune Neptune and a solar nebula a solar nebula and planetesimals
Answer:
Pluto and comets
Explanation:
The two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
A Comets is made of dusty ice and they are known to orbit the sun. Comets are also known to contain gases such as carbon dioxide, water, methane and ammonia. Pluto is the farthest planet away from the sun. It also contains ice and some amount of dust which validates the chosen option.
Basedon astronomical findings, the two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
What are Comets?Comets are objects found in space which are composed of dust and ice.
Comets are known to orbit around the sun.
Comets are composed of gases such as carbon dioxide, water, methane and ammonia.
What is Pluto composed of?Pluto which once was classified a planet is known to be farthest planet from the sun.
Pluto is composed of ice and dust particles.
Therefore, the two objects in space formed from the huge disk of ice and debris beyond the outer planets are Comets and Pluto.
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3. Centrosomes are present only in
a plant cells
b. animal cells
c. both a &b
d. only viruses
Explain what igneous rock is
Explanation:
Igneous rock is formed through the cooling and solidification of magma or lava.
Answer:Igneous rock is which is also called magmatic rock is the rock formed when hot,molten rocks crystallizes and solidifies.
Explanation:
Matching Responses and Stimuli
wpUp
Match each stimulus with the most likely response.
smelling rotten eggs
pulling your hand away
covering your nose
touching a hot dish
OOO
shivering
jumping into a cold pool
Done
Intro
Activity
Answer:
smelling rotten eggs - covering your nose
touching a hot dish - pulling your hand away
jumping into a cold pool - shivering
Explanation:
A stimulus generally refers to a detectable change in the environment of an organism. These changes could be physical or chemical and could be in the internal or external environment of organisms.
Organisms react to changes in their internal or external environment by responding appropriately. Hence perceiving the smell of rotten egg, feeling the hotness of a dish by touching it, and feeling cold immediately one jumps into a cold pool are all examples of stimuli and their corresponding responses would be covering one's nose, pulling the hand away, and shivering of the body in order to counter the cold.
In other words:
smelling rotten eggs - covering your nose
touching a hot dish - pulling your hand away
jumping into a cold pool - shivering
How does natural selection lead to adaptations of populations?
Answer:
Natural selection leads to adaptation, that is, to a population dominated by organisms that are anatomically, behaviorally, and physiologically well suited to survive and reproduce in a specific environment. ... Species become extinct because they can no longer survive and reproduce in their altered environment.
Explanation:
Answer:Natural selection leads to extinction. Variation of the genome that do not have the information required to survive in an environment are eliminated due to natural selection. The surviving genomes already had the information required to survive or adapt to the environment.
Natural selection does not create information necessary for the adaptation of a population. The information must already exist for adaptation to occur. Natural selection will change the composition of a population by eliminating the poorly adapted.
Examples are the peppered moth of England. There were two varieties the Melanic or dark and the predominate white. When the industrial revolution and burning of coal changed the environment, the Melanic or dark variation was better adapted. The population changed to being predominately melanic. When the pollution caused by the Industrial revolution was brought under control the population reverted back to the predominately white variety. Natural selection only changed the population. Natural selection did not create the adaptation it already existed.
Explanation:
Match each type of specialized cell to its functions.
muscle cells
carry oxygen throughout the body,
against pathogens
neurons
conduct electrical impulses; allow b
react to stimuli
epithelial cells
regulate exchange of chemicals, se
various substances
blood cells
help move the skeleton; help the he
and pump blood
Cells Functions
Muscle cells : Help move the skeleton; help the heart beat and pump blood
Neurons : conduct electrical impulses; allow body to react to stimuli
Epithelial cells : Regulate exchange of chemicals, secrete various substances
Blood cells : oxygen throughout the body, protect against pathogens
The cells in the human body have specialized functions and some of the specialized function of some of the specialized cells present in the human body are as listed above.
The muscle cells helps with the mobility of the body and also allows the heart to beat successfully while the Neurons of the nervous system transmits electrical impulses to the brain for proper reaction.
Hence we can conclude that the specialized cells and their functions are as listed above.
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What is the purpose of technology?
A. Creating political pressure
B. Regulating the government
C. Finding new scientific discoveries
D. Solving problems
Answer:
D
Explanation:
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Answer:
The purpose of technology is solving problems.The entire process of problem solving involves gathering and analysing data.
Explanation:
I hope this will help you:)
O processo de excreção permite que o homem se livre de substâncias que são tóxicas e inúteis ou que estão em excesso. Em condições fisiológicas normais, uma pessoa saudável deve eliminar, na urina: a. Agua, uréia, sais minerais e pigmentos. b. Agua, ácido úrico, proteínas e glicose. c. Agua, uréia, glicose e sais minerais. d. Agua, proteínas, sais minerais e pigmentos. e. Agua, amônia, hormônios e polissacarídeos.
Answer:
a. Water, urea, mineral salts and pigments
Explanation:
The composition of urea of a normal healthy human consist of Water, urea, mineral salts and pigments. The water which is present in excess amount in our body will be removed by the body. Our body need salts in low amount which is taken from the food while the excess amount of salts and some pigments in the foods are also removed through the process of excretion and added into the urine. Due to these pigments, the color of urine is yellowish.
An organism genotype is its
1. Genetic makeup
2.feather color
3.physical appearance
4. Stem height
Answer:
1. Genetic Makeup
Explanation:
A genotype is how an individual is made up of. It's our collection of genes and our information is encoded in those genes.
what is the difference between manure and fe!rtilizer
Answer:
Manures and fertilizers are soil additives that improve the soil quality, helping plants to grow. The main difference between the two is that manure is all-natural animal droppings while fertilizer may be natural but may also have chemicals and other unknown substances added to it.Answer:
Explanation: FERTILIZER :
1) It may be artificial or natural substance.
2)These are chemicals that are added to the soil to increase its fertility and productivity.
3) They are costly
MANURE:
1) It is a natural substance
2) These are obtained by dead and decaying plants and animals.
Prepared in factories.
3) They are less costive then Fertilizer.
Which of the following cell membranes is the most fluid? A. Membrane A, because it is composed of saturated fatty acids that have one or more cis bonds that form stable aggregations B. Membrane A, because it is composed of saturated fatty acids that lack weak hydrogen bonds that continually break and reform to permit macromolecule movement C. Membrane B, because is it composed of unsaturated fatty acids that form weak covalent bonds at the site of their cis bonds, which permit easy movement D. Membrane B, because it is composed of unsaturated fatty acids that have one or more bends, which prevent tight packing
Answer:
Because it is composed of unsaturated fatty acids that form weak covalent bonds at the site of their bonds, which permits easy movement.
Hope I am correct.
The highlighted structure separates the oocyte from the externally located ________. zona pellucida primary follicle corona radiata granulosa cells
Answer:
Granulosa cells
Explanation:
Foliculogenesis is a dynamic and complex process through which the follicle goes through many stages of development in a short period (approximately 60 days in humans and some chimpanzees).
The stages classification is based on morphological changes such as follicular size or diameter, the number of follicular cell layers, etcetera. These classifications might vary among authors but could be denominated as:
Primordial folliclePrimary follicleSecondary follicle andDe Graaf follicles (This is the one shown in the image)Through each stage, there are certain modifications in the oocyte, follicular cells, and connective tissue. As the oocyte grows, the follicular cells might reach a size twice or three times bigger than the ones of the primordial follicles. Their shape also changes and they adopt an aspect of stratified epithelium. Their cytoplasm gets a granulous aspect, after what these cells receive the name of granulous cells. The De Graaf follicle characterizes for having a space named follicular antro that displaces the oocyte to one of the sides.
The oocyte at this point gets surrounded by zona pellucida and corona radiata .
The follicular antro (The highlighted structure) separates the oocyte from the externally located granulosa cells or follicular cells.
In which two places do divergent boundaries occur? land and oceans oceans and volcanoes volcanoes and lower mantle lower mantle and land
Answer:
The correct option is;
Land and oceans
Explanation:
Divergent boundaries otherwise known as a constructive boundary is a feature that is liner in shape and occur between the spreading centers of two separating tectonic plates where also magma rising from the mantle forms a new crust
Rifts are formed in continents (land)by divergent boundaries which enlarge into rift valleys. Active divergent boundaries can be located in mid-ocean ridge tectonic plate and volcanic islands are formed by divergent boundaries.
Answer:A
Explanation:
What do paramecia use for defense?
Answer:
Paramacia use trichocysts for defense.
Repair of right eye retinal detachment with a giant tear is performed for an accidental injury sustained from a baseball to the eye at fastball practice. vitrectomy, drainage of subretinal fluid, silicone oil tamponade, and endolaser photocoagulation are performed to correct the tear. what are the procedure and diagnosis codes for this service?
Answer:
Explanation:
Current procedural terminology(CPT) are medical codes used for medical procedures, billing and payment. The code is formulated by America doctors and its serves as guide for treatment.
Diagnosis code for treatment of Retina is 67113, H33.031, W21.03XA
Procedures
The first is to check of CPT codes for repair of eye with Repair/ Retina/ Detachment using Vitrectomy and the code 67113 for rectina repair will be referred to.
Code 67113 is used for repair of damage to retina.
Another index is checks called the ICD-10-CM using Detachment/retina/with retinal/break/giant and code H33.031 will be referred to where 1 indicate right eye as place of injury.
The last code is ICD-10-CM and it is used to locate external Causes of Injuries using Struck (accidentally) by/ball (hit) (thrown)/baseball. Code W21.03 will be referred to as the guide for procedures.
Would your rather paint 3/4 of a circle or a circular ring? Using area, explain your reasoning. Include calculations in your reasoning.
Answer:
circle
Explanation:
Which statements describe transform boundaries? A) Rift valleys are formed. B) Mountains are created. C) Faults form in the lithosphere. D) Plates move toward each other.
Answer:
C) Faults form in the lithosphere.
Explanation:
Faults form in lithosphere is part of transform boundaries because the plates simply slide past each other without causing any change to the lithosphere (i.e it is neither created nor destroyed) which is why transform boundaries are also sometimes referenced when we speak about phenomena related to when plates slide in opposite directions.
Answer: c. Faults form in the lithosphere.
Explanation:
A dog paddles across a lake. What would happen to the dog if the hydrogen
ion pumps in its mitochondria stopped functioning?
A. The dog would gain a large amount of energy
B. The dog would not have any energy left for activity.
C. The dog would start using anaerobic respiration.
D. The dog would gain more energy from glycolysis.
Answer:
B. The dog would not have any energy left for activity
Explanation:
A dog paddles across a lake, and if the hydrogen ion pumps in its mitochondria stopped functioning, then the dog would not have any energy left for activity, which is present in option B.
What is the role of the mitochondria?When a dog paddles in a lake, it requires energy, and the mitochondria are considered the powerhouse of the cell as they produce ATP by creating the hydrogen ion gradient across the inner cell membrane of the mitochondria. If the hydrogen ion pump fails, ATP and energy are not produced, and the dog is unable to paddle in the lake. The energy is created due to the gradient, and later, the hydrogen ions enter the matrix through the ATP synthase.
Hence, A dog paddles across a lake, and if the hydrogen ion pumps in its mitochondria stopped functioning, then the dog would not have any energy left for activity, which is present in option B.
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