Answer:
Explanation:
These proteins, known as growth factors, are signals that stimulate cellular functions such as growth, proliferation, healing and differentiation. In the developing human spinal cord, BMPs are required for the formation of neurons.
What is the sediment deposited by surface water?
Answer: Delta
Explanation:
A delta is the sediment deposited by the surface water. When the river flows it carries the sediments from the bedrock and also from the surface of the top layer of the soil. These sediments are deposited on a fan like formation that is called as delta. It leads to the development of a landform. It is the most fertile landform as the sediments are rich in mineral content that promote the growth of the plants. This develops when river enters into the ocean, estuary, reservoir, lakes, and any other water body supplying the sediments on the surface.
Which type of evidence for evolution is most accurate in determining evolutionary relationships- morphology or biochemical/ molecular evidence? Why?
Into which chamber of the heart does oxygenated blood enter?
what is to be searched for is a scientific knowledge of essences in contradistinction to a scientific knowledge of facts?
Answer and Explanation:
Scientific knowledge must always be focused on the search for facts and not essences, since they are the facts that manage to expose the functioning and composition of elements that are directly or indirectly interacting with human beings.
This is due to the fact that scientific knowledge is knowledge produced through tested and proven evidence, which is able to answer a question based on evidence, that is, the nature of scientific knowledge is the exposure of facts. Thus, we can affirm that, there is no scientific knowledge established in essences, because essences are subjunctive elements, impossible to be tested and proven.
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An area surrounded by tall mountains contains a very large, isolated population of green and white peacocks. During the mating season, the male peacocks demonstrate flashy feather displays to attract females, who usually choose green peacocks over white ones. A biology student tabulates the following information.
Genotype
Plumage Color % of Population Allele Controlled Phenotype
FF or Ff
Dark green
84%
F (dominant)
Dark green plumage
ff
White
16%
f (recessive)
White plumage
Using this information, the student plans to use the Hardy-Weinberg equation to predict the allele frequencies in future peacock generations. Why would her research advisor have a problem with this? (2 points)
Group of answer choices
The student needs the percent of the population with the Ff genotype in order to find the F frequency.
Her research advisor would first want her to find the males' mating success rate for the calculations.
The peacocks are sexually selective when choosing mates, so future allele frequencies may drift.
Since the peacock population is isolated, its alleles would shift away from Hardy-Weinberg equilibrium.
Answer:
The peacocks are sexually selective when choosing mates, so future allele frequencies may drift.
Explanation:
the cell shown in the diagram is ?
Answer:
Plant cell
Explanation:
Because vacuole, chloroplast and cell wall is only present in A Plant cell
9. Give an example of a trait and explain how a genetic trait is passed down from parent to offspring in
animals.
Answer:
Inherited traits are passed down to offspring from parents through their genes. Inherited traits are things that are genetic and with an animal from birth. Both of their parents pass these traits to them, and they become a mix of their parents. Hair color, eye color, fur patterns are all examples of inherited traits.
Explanation:
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Alice wanted to see if a new premium gasoline would give her more kilometres per litre. She filled her car with the new gasoline and went on a long trip. When she calculated her mileage, she discovered that she has gone 40 kilometres further on this tank of gas than she went on a tank of regular gas when she was driving around town as usual. She decided to buy the premium gas from then on to get better mileage. What are the errors in this experiment?
Answer:
She didn't cover the same distance for the new premium gasoline and regular gas
Explanation:
What does density measure
Answer:
Density has the units of mass divided by volume such as grams per centimeters cube (g/cm3) or kilograms per liter (kg/l).
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Data
Record the glucose meter reading in the table below for each of the trials.
Please note that blood glucose levels will vary from person to person, and the levels given here are examples only. The levels given for the person with type 1 diabetes are assuming that no extra insulin was injected to account for the carbohydrate intake.
Subject A (without diabetes)
Food type
Starting blood glucose level (mg/dL)
Blood glucose level after 1 hour (mg/dL)
Blood glucose level after 2 hours (mg/dL)
Blood glucose level after 3 hours (mg/dL)
100
100
100
100
Subject B (with type 1 diabetes)
Food type
Starting blood glucose level (mg/dL)
Blood glucose level after 1 hour (mg/dL)
Blood glucose level after 2 hours (mg/dL)
Blood glucose level after 3 hours (mg/dL)
100
100
100
100
Answer:
The North produced 17 times more cotton and woolen textiles than the South, 30 times more leather goods, 20 times more pig iron, and 32 times more firearms. The North produced 3,200 firearms to every 100 produced in the South.
Explanation:
Subject A = The blood glucose level will decrease after 3 hours
Subject B = The blood glucose level will stay the same after 3 hours
I'm not sure about the rest...
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The spongy layer____
A.) can't do photosynthesis
B.) is the outermost layer
C.) has no chloroplasts
D.) contains stomata
Answer:
B
Explanation:
is the outermost layer
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Which of the following kingdoms includes organisms that are single-celled eukaryotes that can be either heterotrophic or autotrophic?
А Plantae
B Fungi
C Protista
D Animalia
Answer:
the answer is prostists because...
Explanation:
They can be autotroph, heterotroph, or mixotroph because they are eukaryotic. Hope that helped <3
The data in the diagram is evidence that -
Answer: G. Horses slowly developed over time
Explanation:
Different organs work together to create an ____________ that carries out a specific process in the body.
A. organ system
B. cell
C. tissue
Answer:
organ system A
Explanation:
Answer:the answer is a
Explanation:
Energy + 6 CO2
6 H20 → CH2206
602
Photosynthesis
O Cellular Respiration
help ‼️
Answer:
photosynthesis
Explanation:
What is an example of a relationship between organisms in which an organism produces energy that is used by another organism to The detriment of the original organism
Answer:
Tree frogs use plants as protection. Golden jackals, once they have been expelled from a pack, will trail a tiger to feed on the remains of its kills. Goby fish live on other sea animals, changing color to blend in with the host, thus gaining protection from predators.
Explanation:
Where is most of the baryonic matter (ordinary matter) of the universe found?
A. in planets and natural satellites
B. in comets and asteroids
C. in dark matter and dark energy
D. in interstellar gases and stars
Most of the baryonic matter (ordinary matter) of the universe is interstellar gases and stars. Baryonic matter is the visible matter. Thus, the correct answer is D.
What is Baryonic matter?Visible matter is also known as the baryonic matter. It consists of baryons which are subatomic particles such as protons, neutrons and electrons.
In cosmology, baryonic dark matter is the dark matter composed of baryons. Only a small proportion of the dark matter in the universe is likely to be baryonic the rest of the matter is all dark matter. Baryonic matter only includes matter composed of baryons. It can be described as the baryons are made up of protons, neutrons and all the objects composed of them (i.e. atomic nuclei), but exclude other things like electrons and neutrinos.
Therefore, the correct answer is D.
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You might find a ______at the top of a trophic pyramid
1) producers
2)tertiary consumers
3)primary consumer
4)decomposers
PLEASE HELP
Solar panels generate electricity using photovoltaic cells that receive sunlight. To protect these cells from moisture while allowing sunlight to pass through, engineers must design a cover for the solar panel that is—
Answer:
waterproof and transmits light.
Explanation:
Answer:
Photovoltaic
Explanation:
It must be able to allow the electric flow because it must allow the electricity through that cover.
10. Refer to p. 484 of your textbook. In sex-linked heredity, the characteristic gene is found on the X
(sex) chromosomes; therefore, it is inherited along with the sex of the individual. Hemophilia (X") is
the result of a recessive sex-linked allele. A carrier has one recessive allele for hemophilia; therefore,
she does not have hemophilia but can pass it on. If a normal male marries a carrier, what is the
probability that they will produce a male child who will be a hemophiliac? What is the probability
that they will produce a female child who will have the disease? What is the probability that they
will have a daughter who is a carrier?
Answer:
they have a chance of 25% of producing a male child who will be haemophiliac.
Explanation:
0% of producing a female child who will have haemophilia
25% of having a daughter who is a carrier
Which statement describes a difference between predators and prey? Choose the correct answer. A Prey are types of plants, whereas predators are types of animals. B Prey remain in one place, but predators move around within the ecosystem. C Prey get energy only from plant materials, and predators eat only animals. D Prey are hunted for food, and predators capture and eat other animals to get energy.
Answer:
D
Explanation:
The rest can all be ruled out
-best of luck!
Answer:
D Prey are hunted for food, and predators capture and eat other animals to get energy.
what is photosynthesis
Answer:
photosynthesis is the cycle of plants using sunlight water and carbon dioxide.
Answer:
Photosynthesis is the process in which carbon dioxide, sunlight, and water gets turned into energy (glucose) by plants, and the plant releases byproducts (oxygen) back into the air.
Explanation:
Inside the plant is a small organelle (a little body inside a cell dedicated to a certain job) called a chloroplast. When a plant is in sunlight, it gets absorbed into the chloroplast and converted into energy by the chloroplast. While the plant is absorbing sunlight, it is also taking in CO2 (Carbon Dioxide), H2O (Water) and minerals from the soil to help in the process to generate energy.
Is the Therapy scenarios "paraphrasing" or "reflection"?
client: I didn't know what to do, I was so confused and angry
therapist: So you are feeling confused and angry
A. Paraphrasing
B. Reflection
Calculate the ratio of the size of the bacterial cell to the size of the mesophyll cell
bacterial cell is 1 micrometer
mesophyll cell is 0.05mm
Answer:20 to 1
Explanation:
]
The ratio of the size of the bacterial cell to the size of the mesophyll cell is 1:20. It means that 20 bacterial cells can fits into a mesophyll cell.
Given here,
Size of the bacterial cell = 1 micrometer
Size of the mesophyll cel= 0.05mm
Equalize the measuring unit,
1 micrometer = [tex]\bold{10^-^6 m}[/tex]
1 millimetre = [tex]\bold { 10^-^3 m}[/tex]
So the ratio will be
[tex]\bold { = \dfrac{ 1 x10^-^6 m}{0.05 x 10^-^3 m} }\\\\\bold { = \dfrac 1{20} }[/tex]
Therefore, the ratio of the size of the bacterial cell to the size of the mesophyll cell is 1:20.
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Which statement describes combined forces that are balanced?
*They result in a net force less than 0 Newtons
*They result in a net force of 0 Newtons
*They result in a net force greater than 0 Newtons
Answer:
option b is right answer
Opsins are proteins that are found in the light-sensing cells in the human eye. Different opsin proteins are sensitive to different colors of light. The instructions for creating the type of opsin sensitive to red light are found on a gene known as OPN1LW, which is on the X chromosome. A genetic mutation in the OPN1LW gene can lead to a form of color blindness that affects a person's ability to detect red light. However, women have two copies of the X chromosome, and they have normal color vision if only one copy contains the mutation. Why do women who carry one copy of the mutated gene still have normal color vision?
Answer:
Women who carry one copy of the mutated gene still have normal color vision because they have another copy, which is not mutated, in the other X chromosome that will be the dominant one. As a result, the women are carriers of the mutated gene but not color blind.
Explanation:
Colorblindness is a sex-linked mutation. A woman has two X chromosomes, while a man has one X chromosome and one Y chromosome. The mutated gene that causes color blindness is on the X chromosome, and it is OPN1LW. So if a woman has one mutated OPN1LW in one of her two X chromosomes, the OPN1LW gene in the other X chromosome will be the dominant one stopping the woman from being colorblind.
In the case of men, as they only have one X chromosome, if there is a mutation on the OPN1LW in the X chromosome, the men will be colorblind because there is no extra copy of the gene, as it is in women.
How is your body temperature held constant despite different weather temperatures
outside?
Answer:
Core body temperature The body can only stay at a constant temperature if the heat generated is balanced and equal to the heat lost. Although the core temperature must be close to 37°C, fingers and toes can be colder. This is because energy is transferred from the blood as it travels to the fingers and toes.
Answer: When heat activates sweat glands, these glands bring that water, along with the body's salt, to the surface of the skin as sweat. Water evaporating from the skin cools the body, keeping its temperature in a healthy range.
Explanation:
What is toxicity testing? (3 sentences or longer)
Answer:
Toxicology testing, also known as safety assessment, or toxicity testing, is the process of determining the degree to which a substance of interest negatively impacts the normal biological functions of an organism, given a certain exposure duration, route of exposure, and substance concentration
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Hereditary information is passed from one generation to the next. Which two processes are responsible for the passage of hereditary information from generation to generation in mammals, birds, reptiles, fishand other animals?
A.Meiosis and fertilization B. Mitosis and fertilization C. Mitosis and Meiosis
D. Asexual reproduction and sexual reproduction
Answer: c
Explanation:
Meiosis and fertilization, two processes are responsible for the passage of hereditary information from generation to generation in mammals, birds, reptiles, fish and other animals.
What is meiosis and why is it important?Meiosis occurs in chromosomes which allows the production of haploid germ cells necessary for seˣual reproduction. Meiosis is furthermore important for its role in enabling genetic diversity and facilitating the repair of genetic defects through recombination.
Fertilization restores the diploid number of chromosomes, that is 46 in human being. It provides stimulus for the ovum to complete its maturation.
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What are bio-fuels considered carbon neutral?
Answer:
Science considers biodiesel to be carbon-neutral because the plants that are the sources of the feedstocks for making biodiesel, such as soybeans and palm oil trees, absorb carbon dioxide (CO2) as they grow. The absorption of CO2 by these plants offsets the CO2 that forms while making and burning biodiesel.
Explanation:
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