Does natural selection operate more efficiently on dominant or recessive alleles
Answer:
Selection against dominant alleles is more efficient than selection against recessive alleles.
Explanation:
Natural selection operates more efficiently on dominant alleles as compared to recessive alleles.
What do you mean by Natural Selection?Natural selection may be defined as the process through which populations of living organisms adapt and change.
Dominant alleles are expressed in the phenotypes of an organism, while the effect of the recessive alleles is masked or sheltered in the heterozygous condition.
Therefore, Natural selection operates more efficiently on dominant alleles as compared to recessive alleles.
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Are there multiple of one organelle in a cheetah cell?
Need an answer QUICK!!!
Answer:
yes
Explanation:
they have multiple
Answer:
Yes
Explanation:
Yes
Yes
Yes
YES!!!!
How is it that some people have different DNA than others? What exactly about the DNA is different?
Answer:
Although DNA is univeral, people have different DNA from each other mainly because of mutations, which change our sequences (the order of the nucleotides)
Explanation:
The threadlike structures found in the nucleus of each human cell and made up of deoxyribonucleic acid are called.
Help Me What can be caused by volcanic eruptions? there is more then one answer so Select all correct answers.
A. earthquakes
B. lahars
C. shifting plate tectonics
D. landslides
PS: this is the last question to my test and I need help immediately please help
Answer:
I think option b
Explanation:
lahar What can be caused by volcanic eruptions? there is more then one answer so Select all correct answers.
The Toucan has a long, narrow beak that allows it to reach fruit that is hard to reach for other birds. Plants, like the Monstera Plant, in the rainforest have long, grooved leaves to drop water to the forest floor. The excessive water that falls in the rainforest could lead to mold, so the leaves adapted to have “drip tips” that allow the water to run off of the leaves.
What type of adaptations are these?
Answer:
The Toucan, as an animal, has to eat. So, the Toucan developed a more aggressive adaptation to get food. On the other hand, the Monstera Plant had to do something about the mold situation. So, it developed a less aggressive adaptation, more of a defensive one, to combat its issues.
Explanation:
Help please!
in humans, one of the genes determining color vision is located on the x
chromosome. the dominant form (c) produces normal color vision; red-green
color blindness (c) is recessive. if a man with normal color vision marries a color-
blind woman, what is the probability of their having a color-blind son? a color-
blind daughter?
Answer:
The chances that the first child from this marriage is a color-blind boy is ... 25%
The failure of the brain to work properly would most directly affect the what?
Answer:
The nervous system
It involves the brain
Select all of the following statements that describe the structure of a molecule of DNA
The statements that describe the structure of a molecule of DNA include the following:
Twisted double helixContains deoxyribose sugarContains the nitrogenous bases, adenine, thymine, cytosine and guanine.What is DNA?This is known as deoxyribonucleic acid and carries genetic instructions in all living things.
It is a twisted double helix with a deoxyribose sugar and the nitrogenous bases such as adenine, thymine, cytosine and guanine.
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Can we use molecules other than glucose for cellular respiration?
Answer:
Other organic molecules such as fat and protein are also used as fuel in cellular respiration they just take a different pathway than glucose.
Explanation:
Muscle control and body coordination are controlled by the:.
Answer:
The Cerebellum's Balancing Act
Explanation:
The cerebellum is at the back of the brain, below the cerebrum. It's a lot smaller than the cerebrum. But it's a very important part of the brain. It controls balance, movement, and coordination (how your muscles work together).
Muscle control and body coordination are controlled by the cerebellum.
The cerebellum is a highly specialized region of the brain located at the back of the skull, beneath the cerebrum. It is usually referred to as the "little brain" due to its appearance and position. Although it constitutes only about 10% of the brain's total volume, the cerebellum contains an enormous number of neurons.
It plays a crucial role in motor control, coordination, and balance. It receives information from various sensory systems. It also receives input from the cerebral cortex, which is involved in planning and initiating movements.
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Describe what would happen to human *** cells (sperm and egg) if they were not formed by meiosis, but instead, formed by mitosis. How many chromosomes would each s** cell have? How would this affect fertilization and the newly formed cell
Answer:
Normally, meiosis causes each parent to give 23 chromosomes to a pregnancy. When a sperm fertilizes an egg, the union leads to a baby with 46 chromosomes.
But if meiosis doesn’t happen normally, a baby may have an extra chromosome (trisomy), or have a missing chromosome (monosomy). These problems can cause pregnancy loss.
Mitosisis the dividing of all other cells in the body. It’s how a baby in the womb grows. Mitosis causes the number of chromosomes to double to 92, and then split in half back to 46. This process repeats constantly in the cells as the baby grows. Mitosis continues throughout your lifetime. It replaces skin cells, blood cells, and other types of cells that are damaged or naturally die.
During pregnancy, an error in mitosis can occur. If the chromosomes don’t split into equal halves, the new cells can have an extra chromosome (47 total) or have a missing chromosome (45 total).
If gametes were produced instead by mitosis each gamete would be diploid not haploid. During fertilization of diploid gametes, the zygote would become 4n=92. With each new generation the number of chromosomes would double.
What was the experience like traveling west on the wagon trail?
Answer:
horrific.
Explanation:
not only did some people end up running out of food, but they saw their loved ones die from disease, being too cold, malnutrition, the ride was obviously not at all smooth, there could have been massive snow/rain storms. not a good time.
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Which is probably NOT part of the environment of a goldfish?
gravel
a bowl
water
a tree
A tree wouldn't be part of the environment of a goldfish.
Answer:
A tree
Explanation:
Trees can't live underwater! plus, they are too big to fit in a small fishbowl. what can fit in a fish bow is gravel for the "seafloor" of the bowl, water for the fish to live in, and a bowl for the water of the fish, but a tree won't fit or live in the bowl.
Which resource do you think is most important to
your survival: water, air, a place to live, or food?
Answer:
air
Explanation: without air you can cant even live
A science class is planning an investigation about gravity and objects on Earth. In three to four sentences, explain the steps the class should take to provide data to help them make a conclusion about the effect of gravity on objects of different masses
Gravity is a force that differentially affects objects depending on their masses. It is also a physical property.
What does gravity mean?Gravity is a force capable of pulling objects and/or materials toward each other depending on their masses.
Gravity on the Earth planet is able to maintain minor bodies (e.g., organisms) on its surface.
Gravity is a physical property because it varies depending on the objects that are involved (for example, gravity on Earth and Mars is not equal).
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What are the steps of photosynthesis? How do they take place?
Hopefully my answer helps you out today.
Explanation: "The process of Photosynthesis is simple."
The process of photosynthesis can be divided into four steps.
The process: The first step in photosynthesis is the absorption of light by the sun that is attached to the proteins in the thylakoids of chloroplasts.
Electron Transfer. ...
Generation of ATP. ... ATP is Energy-carrying molecule found in the cells of all living things.
Carbon Fixation.
Have a fantastic day or night!
There is a total of the 4 major steps in photosynthesis. Photosynthesis is the method plants use sunlight, water, and carbon dioxide to create oxygen.
What is the process of photosynthesis?During photosynthesis, flora absorbs carbon dioxide (CO2) and water (H2O) from the air and soil. Within the plant cell, the water is oxidized, which means it loses electrons, at the same time as the carbon dioxide is reduced, which means it profits electrons.
It is handy to divide the photosynthetic method in flora into 4 stages, every happening in a described location of the chloroplast:
(1) absorption of light, (2) electron delivery main to the discount of NADP+ to NADPH, (3) technology of ATP, and (4) conversion of CO2 into carbohydrates (carbon fixation).To learn more about photosynthesis refer link:
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The graph shows the world-wide percentages of pollutants entering the oceans from difference sources. What conclusions would explain the percentages of sewage and farm runoff?
The percentages of sewage and farm runoff shows that these two factors add greater amount of pollutants in the environment.
Effects of sewage and farm runoffFarms runoff is a huge source of runoff, as rainwater and irrigation drain fertilizers and pesticides into bodies of water which is the main cause of water pollution. Sewage water also have greater contribution in pollution.
So we can conclude that the percentages of sewage and farm runoff shows that these two factors add greater amount of pollutants in the environment.
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The two main parts of evolution that Christians often try to reconcile with Scripture are the extent of change in organisms and the timetable of change. Fill in the following table, describing the different views of ori-
gins. The first row has been completed for you as an example.
Answer:
Explanation:
Why has Darwin’s science been such a religiously troubling idea? In those parts of the world influenced by the Bible and the Qur’an, we may point to at least five reasons: (1) Darwinian biology tells a whole new story of creation, one that cannot be literally reconciled with religious creation stories such as those narrated in the book of Genesis; (2) the evolutionary notion of natural selection seems to eliminate the role of God in creating the various species of life; (3) Darwin’s theory of human descent from nonhuman forms of life raises questions about traditional beliefs in human uniqueness, such as the biblical claim that human beings are created “in the image and likeness of God”; (4) the prominent role of chance or accidents in evolution raises questions about whether a creator truly cares for the world; and (5) the competitive “struggle for existence” inherent in evolution seems at odds with a Universe created by God.
Darwin's theory of human descent from nonhuman forms of life raises questions about conventional beliefs in human uniqueness, such as the biblical claim that human beings are the only species to have evolved from nonhuman life forms.
What kind of evolution that Christians often try to reconcile?Christians frequently attempt to reconcile two key aspects of evolution with Scripture: the pace of change and the scope of organismal change.
Darwinian biology tells a whole new story of creation, one that cannot be literally reconciled with religious creation stories like those narrated in the book of Genesis.
Therefore, the evolutionary notion of natural selection seems to eliminate the role of God in creating the various species of life.
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What structural features do cellulose and glycogen share, and in what ways do they differ?.
Answer:
Option (b) Both are polymers of D-glucose but cellulose is connected by ( beta 1-4 ) glycosidic linkage whereas glycogen is connected by ( alpha1-4) glycosidic linkage....
Explanation:
:)
The same monomer, glucose, is used by both cellulose and glycogen.Six carbon atoms make up the ring structure of glucose.Different structures can be made by joining separate glucose rings together at various carbons.
What structural features do cellulose and glycogen share?
Glucose subunits make up the polysaccharides that make up starch, cellulose, and glycogen.In contrast to cellulose, which consists of -glucose subunits, starch and glycogen are composed of -glucose subunits.Starch and glycogen are branched polymers of glucose, whereas cellulose is an unbranched, straight-chain polymer of glucose.Let's explore the variations among these polysaccharides. Composition of Cellulose.The primary structural element of a plant's cell wall is cellulose.It can only be found in plants.The most prevalent organic compound in the plant kingdom is cellulose.It is composed of 1-4 glycosidic linkages that connect its -glucose subunits.This glucose polymer is straight and unbranched.Strong fibers are created by hydrogen bonds between adjacent chains of glucose units. Organization of Glycogen,In both animals and fungus, it serves as the primary storage carbohydrate.Its structure is similar to that of amylopectin and is heavily branched.It is a polymer made up of 1,4 and 1,6 glycosidic linkages that connect different -glucose subunits.After around every 10 subunits, it branches.Another name for glycogen is animal starch.It is kept in the brain, muscle, and liver.Glycogen is converted to glucose during a process known as glycogenolysis whenever the body needs energy.The degradation of glycogen is catalyzed by the enzyme glycogen phosphorylase.Phosphoglucomutase uses glucose to produce glucose-1-phosphate, which is then changed into glucose-6-phosphate.Glycogen is created from glucose as blood glucose levels rise.Glycogenesis is the term used to describe the process of making glycogen.Hormones regulate the interconversion of glucose to glycogen.Insulin induces glycogenesis while glucagon and adrenaline encourage glycogenolysis.To learn more about cellulose refer
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Starting from glucose and utp and atp, how many high-energy bonds are broken/consumed directly to add that glucose to a glycogen molecule?
Answer: 2
Explanation:
A total of 2 high-energy bonds are broken/consumed directly to add that glucose to a glycogen molecule that is ATP.
What is Glucose activation?Glucose-1-phosphate reacts with the excessive strength nucleotide uridine triphosphate (UTP) to present uridine diphosphate glucose (UDPG) and pyrophosphate (PPi).
During glycolysis, glucose in the end breaks down into pyruvate and energy; a complete of two ATP is derived withinside the process. (Glucose + 2NAD+ + 2ADP + 2Pi --> 2 Pyruvate + 2NADH + 2H+ + 2ATP + 2H2O). The hydroxyl organizations permit for phosphorylation. The unique shape of glucose utilized in glycolysis is glucose 6-phosphate.To learn more about the glycogen refer link :
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Hello people ~
The formula of exponential population growth curve, is
(a) dN/dt = rN
(b) dt/dN rN
(c) dN/rN = dt
(d) rN/dN = dt
Answer:
The Formula for exponential population growth curve is dN/dt = rN. (option A)
Explanation:
Exponential growth is a function that grows or shrinks at a constant percent growth ratedN/dt= rN
Where,
dN = Change in no. of individuals in population.dt = Change in timeN = No. of individualsr = Per capita rate of increase.1.)ROVs have become quite valuable in which of the following areas of marine science?
recording changes in coastal ecosystems
documenting diverse sea life at the sunlight level
exploring the ocean floor, particularly the trenches
accompanying amateur scuba divers in remote areas
2.)Most marine science jobs that involve conducting research will require an advanced degree.
True
False
3.)It is very easy for a marine biologist to get a job working with large marine animals.
True
False
ROVs (remotely operated vehicles) have become quite valuable in exploring the ocean floor, particularly the trenches. Therefore, the correct statement is option C. The other two statements are true and false, respectively.
What are the uses of ROVs?ROVs are used in marine science to explore and gather data from areas that are too deep or dangerous for human divers to access. ROVs are of great importance in the ocean floor, particularly the trenches. These are type of vehicles which are controlled remotely and well equipped with cameras and sensors which gather information from the deep sea environment.
Marine science is a complex and interdisciplinary field that requires a strong foundation in scientific principles and research methodology. An advanced degree, such as a master's or doctorate degrees are required in this field because certain skills are used to conduct research in this field, such as ability to design and execute experiments, etc.
it is very difficult for a marine biologist to get a job because it involves working with large marine animals and are highly competitive jobs. Marine biologists involve various areas such as marine conservation, marine ecology, or marine biotechnology.
Therefore, ROVs (remotely operated vehicles) have become quite valuable in exploring the ocean floor, particularly the trenches and marine science jobs require an advanced degree and are difficult to get.
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Which of the following is TRUE of the process of meiosis?
A. It results in the number of chromosomes being reduced by half.
B. The process adds an extra twenty-first chromosome.
C. Meiosis results in two cells, each with 46 chromosomes.
Answer:
A. It results in the number of chromosomes being reduced by half.
Explanation:
In the process of meiosis, one cell is divided 2 times to form 4 daughter cells. These 4 daughter cells have half the number of chromosomes that of the parent cell.
why is ice at 273 k more effective in cooling than water at the same temperature?
Answer:
it does not have any hidden heat.
Explanation:
Ice at 273K or 0°C is more efficient in cooling as it does not have any hidden heat. Water at the same temperature has hidden heat, banned latent heat of fusion, which is used to convert water into ice. Thus, ice at 273 K is more effective in cooling
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Ice at 273K is more effective in cooling than water at the same temperature as ice absorbs more heat to overcome the latent heat of fusion, as a result, provides the cooling effect.
What is latent heat?
Latent heat of fusion is the energy that must be provided to the solid matter so that there is a change triggered in the physical state of the matter, and as a result, leads to the formation of the liquid.
Ice at 273 K has a cooling effect as there is no hidden heat and latent heat, unlike the water that has hidden heat that makes them less cool than the ice at the same temperature.
Therefore, the ice exhibits a cooling effect at 273 K.
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Which stage in the life cycle of a plant is represented in this picture?
a
Adult plant
b
Seed
c
Seedling
d
Sprout
Answer:
D) Sprout
Explanation:
which of the following questions about the origin of life on earth is most scientifically testable
A scientific question can be answered by experiments. The most scientifically testable question is; can simple organic molecules form spontaneously in an oxygen-free atmosphere?
What is a scientifically testable question?We say that a question is scientifically testable if its answer can be found by carrying out a scientific research on the question.
Now having seen the question and considering all the options listed, the most scientifically testable question is; can simple organic molecules form spontaneously in an oxygen-free atmosphere?
Missing parts:
Which of the following questions about the origin of life on Earth is most scientifically testable? (A) Why were the earliest life-forms created using only twenty amino acids? (B) Did life originate to make the universe a better place? (C) Was catalytic RNA used by ancient organisms as a stepping stone to acquire protein enzymes? (D) Can simple organic molecules form spontaneously in an oxygen-free atmosphere?
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Microorganisms that are removed by mucus are destroyed by the.
fungs it breaks down trees that are dead
Explanation:
The __________ is responsible for cellular respiration They use _________ to breakdown __________ to create energy.
Explanation:
the mitochondria is responsible for cellular respiration. They use food molecules to breakdown Glucose to create energy
Can someone please help me with these three questions for my biology project?
It asks for a 250-word report on these questions. Doesn't have to be 250 but I'd really appreciate it.
What happens in the light reaction of photosynthesis?
What happens in the dark reaction of photosynthesis?
What five factors affect photosynthesis and its rate? How?
Answer:
Explanation:
light reaction - chlorophyll absorbs light energy
dark reaction -
happens in the stoma when light is not presentfactors - chlorophyll, carbon dioxide concentration, light intensity , temperature ,water