I'm completely sure your answer would be D.
It has two different alleles for a trait!
An organism that is heterozygous has two different alleles for the same trait. Therefore, the correct option is B.
Alleles are genetic variants that affect the way a trait is expressed in different ways. During sexual reproduction an organism receives one allele from each parent. If these alleles disagree, the organism is said to be heterozygous for that trait. Two different alleles enable genetic diversity and the possibility of different phenotypic outcomes. A dominant allele may be expressed as a result of heterozygosity, while the effect of a recessive allele may be obscured. This genetic diversity is important for evolution because it gives rise to natural selection and the ability to adapt to changing conditions.
Therefore, the correct option is B.
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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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Which is one place that glaciers are found?
A) in the ocean
B) in the tropics
C) at low altitudes
D) at high latitudes
Answer:
I believe it is at high latitudes
Explanation:
I say this because many glaciers are found in Greenland and Antarctica which are both located in higher latitudes
Glaciers are found at HIGH latitudes (Option D).
Latitude refers to the geographic coordinates which are used to indicate specific north-south positions on the Earth's planet.
Low latitudes are geographic coordinates found between the 0 degrees (Equator) and 30 degrees north-south, whereas high latitudes are found between 30 degrees and 90 degrees north-south positions.
At low latitudes, the energy from the sun is able to melt the polar ice.
Thus, glaciers are found at high latitudes because the highest latitudes get a minor amount of energy from the sun compared to low latitudes.
In conclusion, glaciers are found at HIGH latitudes (Option D).
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plz like last time its hard and I jus wanna get at least a 70% plz ill mark u whatever is on here jus plz help i wanna finish.
Which is NOT a function of the skeletal system?
A) Support the body.
B) Protect vital organs.
C) Separate and eliminate waste.
D) Serve as a framework for the attachment of muscles.
Starting with its basic building blocks, which is the correct order of the levels of organization within the muscular system?
A.) skeletal muscle cells --> skeletal muscls tissues --> skeletal muscles
B.) smeletal muscles --> skeletal muscles cells --> skeletal muscle tissues
C.) skeletal muscle tissues --> skeletal muscles --> skeletal muscle cells
D.) skeletal muscles cells --> skeletal muscles --> skeletal muscle tissues
Which two organ systems work together to provide a structural framework for movement?
A.) skeletal and muscular
B.) muscular and endocrine
C.) integumentary and skeletal
D.) endocrine and integumentary
At which location do bones come together?
A.) joints
B.) biceps
C.) triceps
D.) tendons
Which structures make up the skeletal system?
A.) bones and tendons
B.) bones and ligaments
C.) muscles and tendons
D.) muscles and ligaments
Answer:
Separate and eliminate wasteSkeletal muscle cells-->Skeletal muscle tissue-->Skeletal muscleSkeletal and muscular.JointsBones and ligaments.Explanation:
Separating and eliminating wastes is the function of excretory system.
The level of organization
Cells-tissue-organ-organ system-organism
Joint is a place where to bones meet.
Bones amd ligaments make up the Skeletal system.
Hope this really helps. ❤❤❤
Dr. DeRidder lesions, or damages, the ventromedial hypothalamus in one group of rats and the lateral hypothalamus in another group. What effect might he expect on the eating behavior of each group of rats? Both groups should begin overeating and become grossly obese. Rats with ventromedial lesions should begin overeating; rats with lateral lesions should stop eating. Both groups should stop eating and perhaps eventually starve to death. Rats with ventromedial lesions should stop eating; rats with lateral lesions should begin overeating.
Answer:
Rats with ventromedial lesions should begin overeating; rats with lateral lesions should stop eating
Explanation:
The feeling of hunger stimulates a desire to eat.
The lateral hypothalamus is responsible for making an organism hunger and craves for food upon receiving any stimulation or signal that causes hunger.
A damaged to the lateral hypothalamus would mean the organism would not be able to sense hunger and thus, there would be no desire to eat. Hence, the rats with lateral lesions should stop eating.
On the other hand, the ventromedial hypothalamus is responsible for quenching hunger and signaling to the organism that it is full, hence, it would stop eating. However, when the ventromedial hypothalamus is damaged, the organism would not be able to tell when to stop eating. Hence, rats with ventromedial lesions should begin overeating.
what would you use to measure an amount of solid sodium chloride(NaCl) crystals to add to a 30 mL solution?
Explanation:
I would use a digital weighing scale to perform the operation
the following steps should be considered.
1. Turn ON the digital scale
2. Zero the scale(this eliminate any previous measurements or default readings)
3. Place the dish on the scale and note the initial readings
4. Place the sample of NaCl to be measured and note the final reading
5. Subtract the initial reading from the final reading
The final reading is the amount of NaCl
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.
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.
diff betwn light year and astronomical unit in 2 points
Answer ;
A light year is the distance light travels in a year and an astronomical unit is the average distance between the earth and the sun.
hope this can help you
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:)
why doesn't
bromine react with sulphur?
Answer:
The bromine will oxidize sulfur compounds in which the valence of sulfur is lower than six to sulfate.
Explanation:
A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all.
Answer:
C
Explanation:
The complete question: A student conducts an experiment to see how music affects plant growth. The student obtains four identical plants. Each one is potted in the same type of soil and receives the same amount of sunlight and water each day. Plant A listens to classical music for three hours each day. Plant B listens to rock music for three hours each day. Plant C listens to country music for three hours each day. Plant D does not listen to any music at all. In the experiment described in the scenario, which group represents the control group? A. Plant B B. Plant A C. Plant D D. Plant C?
The control group here would be plant D.
Control groups are usually used to minimize the effects of extraneous variables in the course of experiments and to ensure that the differences observed in different experimental groups are due to the effects of the independent variables.
In this case, all the plants were exposed to music except the control group because the aim of the experiment is to measure the effects of music on plant growth. Any difference in growth observed between those exposed to music and the control group can reliably be considered to be due to the music.
The correct option is C.
Answer:
d
Explanation:
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:
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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Plants absorb the greenhouse gas carbon dioxide during the process of _____.
Answer:
Photosynthesis
Explanation:
Plants convert carbon dioxide and water into sugar and oxygen through the process of photosynthesis. Plants absorb carbon dioxide from the atmosphere during photosynthesis.
Which of the following is the main mechanism by which populations change
over time?
A. Genetic drift
B. Artificial selection
C. Sexual selection
D. Natural selection
Answer:
D Natural selection
Explanation:
This is because the dominant Gene according to Charles Darwin is strong enough to adapt to any environment.Making it a survival of the fittest
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.
3. Centrosomes are present only in
a plant cells
b. animal cells
c. both a &b
d. only viruses
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.
Which of the following correctly describes connective tissue? made of electrically charged cells that send messages made of cells that are separated by a nonliving matrix made of sheets of cells that are tightly joined together and attached to a basement membrane made of cells capable of contraction
Answer:
the answer is D
Explanation:
I hope this helps
Which of the following is evidence that living organisms share a common
genetic code?
O A. All living organisms have the ability to maintain homeostasis in a
changing environment.
B. All organisms contain the same four major types of organic
macromolecules.
C. All organisms use translation to assemble amino acids into the
correct sequence for a specific protein.
O D. All living organisms consist of cells that carry out the functions of
life.
Answer:
All living organisms have the ability to maintain homeostasis in a
changing environment.
Explanation:
A. "All living organisms have the ability to maintain homeostasis in a
changing environment" provides evidence that living organisms share a common genetic code.
What is a genetic code?
"The genetic code is a set of three-letter combinations of nucleotides called codons, each of which corresponds to a specific amino acid or stop signal."
What is homeostasis?
"Homeostasis, as currently defined, is a self-regulating process by which biological systems maintain stability while adjusting to changing external conditions."
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What do paramecia use for defense?
Answer:
Paramacia use trichocysts for defense.
Which statement accurately describes dark matter? It is the same as dark energy. It is well understood by scientists. It does not emit electromagnetic radiation. It can be observed by shifts in red and blue light.
Answer:
Dark matter does not emit electromagnetic radiation.
Explanation:
Dark matter comparative to dark energy, has various differences. You could say that dark energy is put into action on a larger scale than dark matter, which is also why dark energy makes up 74 percent of the universe. Thus, dark matter ≠ dark energy.
Scientists have a lot to learn about dark matter, so we can't claim that this subject has been well understood about scientists. In fact, it is one of the least understood parts of the universe!
_______________________________________________________
Now dark matter can be defined as particles that do not absorb, reflect, or emit light. Thus, it can't be observed by electromagnetic radiation - nor shifts in red and blue light. At the same time it does not emit electromagnetic radiation.
Answer:
dark matter does not emit electromagnetic radiation.
Explanation:
Which is a goal of the Human Genome Project?
a to identify the 3 billion genes that comprise the human genome
b to sequence the genome of every living individual
c to address the ethical consequences of genomic research
d to measure the length of human DNA
Answer:
C. to address the ethical consequences of genomic research
Explanation:
Option A comes very close to the correct answer but is not the main goal. Although the scientists were after decoding our genome and mapping our genes and such, ultimate goal was also to address the ethical consequences of genomic research because your genome is your blueprint (i.e. your genome makes you).
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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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.
what is RNA editing?exactly correct answer
Answer:
a process of evolution
Explanation:
it happens when animal or plant cells make changes of molecules within the RNA .Such may include insertion ,deletion or substitution
:)
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:
The hydrolysis of GTP to GDP carried out by tubulin molecules Group of answer choices provides the energy needed for tubulin to polymerize. occurs because the pool of free GDP has run out. tips the balance in favor of microtubule assembly. allows the behavior of microtubules called dynamic instability.
Answer:
allows the behavior of microtubules called dynamic instability.
Explanation:
GTP help to stabilize the tip of the microtubule, thereby allowing more monomers to be added.
The hydrolyses of GTP to GDP carried out in the tubulin molecules allows the behavior of microtubules called dynamic instability.GTP hydrolysis changes the conformation of the tubulin molecules and cause the dynamic behavior of microtubules because it allows the cell to rapidly reorganize the cytoskeleton when necessary in which individual microtubules alternate between cycles of growth and shrinkage.
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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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.