for each phenotype, list the genotypes (Remember to use the letter of the dominant trait)
* Straight hair is dominant to curly:
_____Straight
_____Straight
_____Curly
*Tail spikes are dominant to plain tails:
_____pointed
_____pointed
_____round
The scientist responsible for disproving the theory of spontaneous generation:
Answer:
Francesco Redi
Explanation:
Italian physicists disproved the theory of spontaneous generation by observing the relations between maggots and fly eggs on meat.
[tex]\huge\sf{ANSWER}[/tex]
Louis PasteurWho is Louis Pasteur?
Tap the pic aboveHope it helps
Match the following terms and definitions.
1. an animal without a body cavity ----------------> acoelomate
2. development of an apparent head end of an animal--------->coelomate
3. flagellated cell lining the inside of a sponge------------> choanocyte
4. an animal with a fluid-filled body cavity that lies within the mesoderm
----------------- ectoderm
5. organisms that form by radial cleavage and develop an anus from the first indentation of the gastrula stage of embryonic development; includes echinoderms, chordates, and vertebrates ---------------->cephalization
6. "outer skin"; layer of cells that develop on the outside of the embryo -------------deuterostomes
Coelomates are, therefore, animals that have a cavity completely lined by mesoderm.
1. acoelomate
2 cephalization
3 choanocyte
4 coelomate
5 deuterstomes
6 ectoderm.
What are the characteristics of these animals?1. an animal without a body cavity: acoelomate
2. development of an apparent head of a :cephalization
3. flagellated cell that lines the inside of a sponge: choanocyte
4. an animal with a fluid-filled body cavity that lies within the mesoderm: coelomate animal
5. organisms that form by radial cleavage and develop an anus from the first indentation of the gastrula stage of embryonic development; includes echinoderms, chordates, and vertebrates: deuterostomes
6. "outer skin"; layer of cells that develop on the outside of the embryo:ectoderm
With this information, we can conclude that Coelomates are, therefore, animals that have a cavity completely lined by mesoderm.
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1) Acoelomate
2) Cephalization
3) Choanocyte
4) Coelomate
5) Deuterostomes
6) Ectoderm
Hemophilia is an X-linked recessive disorder (Xh) that is passed through generations and can be traced by using a pedigree.
Charles is a blank box with a Upper X Upper H Upper Y genotype and Marie is a half-filled circle with a X Upper H x h genotype.
What is the probability that a female child of Charles and Marie would suffer from hemophilia?
0 percent
25 percent
50 percent
100 percent
The probability that a female child of Charles and Marie would suffer from hemophilia is 0 percent.
What are X-linked diseases?X-linked diseases are diseases whichabre found only on the X chromosomes.
Hemophilia is an X-linked recessive disorder (Xh)
Charles is has the normal X chromosome YXH
Marie is a carrier of the disease XHXh
A cross between YXH and XHXh will not produce any XhXh.
Therefore, the probability that a female child of Charles and Marie would suffer from hemophilia is 0 percent.
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sunflower follows the direction of the sun until they reach the age of maturity. why?
Continuously facing towards the east also helps the flowers to heat up quickly. This gives them an advantage in pollination, as warm flowers attract insects. Therefore, in the plant's interest, the flower always faces the sun and is therefore always clearly visible to these important pollinators.
This property of facing the sun is mostly observed in young flowerheads and generally stops once the flower starts to mature. The phenomenon of flowers following the sun across the sky is called heliotropism.
Why do sunflowers face the sun?The obvious reason for the flower following the sun would be to maximize photosynthesis.
Each sunflower plant has only one flower on its stem. Therefore, during pollination, the plant’s only means of reproducing must get noticed by pollinators. [A pollinator is anything that helps carry pollen from the male part of the flower to the female part of the same or another flower. The movement of pollen must occur for the plant to become fertilized and produce fruits, seeds, and young plants.] Continuously facing towards the east also helps the flowers to heat up quickly.
This gives them an advantage in pollination, as warm flowers attract insects. Therefore, in the plant’s interest, the flower always faces the sun and is therefore always clearly visible to these important pollinators.
When researchers compared mature flowers facing east with flowers that they had turned to face west, they made a remarkable observation. East-facing blooms attracted five times as many pollinating insects as west-facing ones. Sunflower has a clear advantage in terms of reproduction if it faces the sun.
Why a mature sunflower does not track the sun?- It is mainly young flower heads that exhibit this characteristic of heliotropism because younger flowers have green “bracts” that look like a mane.
- As sunflowers mature, this process comes to a halt. Overall growth slows, and the flower's circadian clock reacts most intensely to the sun's early morning rays than those later in the day. As a result, the blooms gradually stop tracking westward altogether.
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This cycle is significantly affected by the extraction of fossil fuels. Photosynthesis is a major flux in this cycle. The weathering of rock is a major flux in this cycle. Transpiration is a major flux in this cycle. This cycle's largest reservoir is the atmosphere. This cycle's largest reservoir is ocean water. This cycle is affected by the release of detergents in treated wastewater. Nitrification is a major flux in this
This cycle is significantly affected by the extraction of fossil fuels an this is the carbon cycle.
Which organic cycle is worried in burning of fossil fuels and photosynthesis with the aid of using plants?It is saved in what are referred to as reservoirs, and it actions among those reservoirs thru a number of processes, which includes photosynthesis, burning fossil fuels, and actually liberating breath from the lungs. The motion of carbon from the reservoir to reservoir is referred to as the carbon cycle.
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The most common use of radioactive isotopes in medicine is to diagnose disease. Typically, radioactive materials are injected into the body and then radiation-detecting cameras are used to build images of affected body parts or particular types of cells. This equation models the amount of a radioactive isotope in the bloodstream minutes after it is injected:
Radioactive substances are employed in therapy to destroy malignant tissue, shrink a tumor, or lessen discomfort.
What is the radioactive elements?Two or more chemical species of an element with varying atomic masses and unstable nuclei are referred to as radioactive isotopes. Because of the excess radiation that these isotopes produce in the form of alpha, beta, and gamma rays.
Nuclear medicine treatments use a tiny amount of radioactive substance called a radiopharmaceutical to assist diagnose and cure disorders. To identify disorders, some radiopharmaceuticals are utilized in conjunction with imaging technology. To reduce or eliminate a cancerous tumor, radiopharmaceuticals can also be injected close to the tumor inside the body.
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Mr. jones science class is comparing three samples. Mr Jones divided his class into four groups. Each group was given one of each of the samples to measure the mass. What would be the best explanation why group 3's measurements were so different from the rest of the groups?
Answer:
C
Explanation:
i am god
Mr. jones science class is comparing three samples. Mr.jones divided his class up into four groups. Each group was given one of each of the samples to measure the mass. What would be the explanation why group 3's measurements were so different from the rest of the groups
It could be that group 3 was given a different sample entirely.
Mass measurementThe class was divided into 4 groups, whereas, only 3 samples were to be weighed and compared.
Thus, it could be that group 3 was given another sample that is entirely different from the other groups.
If group 3 was actually given one of the 3 samples, it means that they made a mistake during weighing.
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Please use the graph to the
left to help you answer this
question.
Which of the following
describes the DEPENDENT
variable?
A. the group in which the conditions
were not changed
B. the variable that is changed by the
person doing the experiment and
located on the x-axis
C. the variable that is observed or
measured by the experimenter and
located on the y-axis
9
D. the observation that the
experimenter made that started the
experiment
Answer:
C
Explanation:
The dependent variable is always the outcome, data, or what is being measured in an experiment.
Reviewing Meiosis:
1. How many cells are present and how many chromosomes are present in the cell at each stage?
start of Meiosis____
end of Meiosis 1_____
end of Meiosis 2____
1. How many cells are present and how many chromosomes are present in the cell at each stage?
start of Meiosis a parent cell that is diploid
end of Meiosis 1 when the chromosomes of each homologous pair arrive at opposing poles of the cell.
end of Meiosis 2 four haploid daughter cells
Anxiety is __________, and therefore anxiety disorders probably exist in all human societies, though there likely are some differences in prevalence and in its expression.
Anxiety is mental diseases, and therefore anxiety disorders probably exist in all human societies, though there likely are some differences in prevalence and in its expression.
What is anxiety and symptoms?Anxiety symptoms can manifest on a physical level, such as a feeling of tightness in the chest and tremors, or on an emotional level, such as the presence of negative thoughts, worry, insecurity or fear, for example, and usually several symptoms appear at the same time.
In this case, women are twice as likely to develop anxiety as men because the cultural issue, of activities that are left to the care of the woman: care for the house, with the children, with the family, regardless of whether she works or not
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A(n) ________ may be used to outline structures of the urinary system, including any stones larger than 2 mm.
A kidney, ureter and bladder (KUB) may be used to outline the structure of a urinary system, including any stone that is larger than 2 millimeters.
What is a urinary system?A urinary system can be defined as a living system that is saddled with the responsibility of removing excess and unwanted waste fluids from the body of a living organism, so as to prevent damage to the body and help maintain homeostasis.
In Medicine, a kidney, ureter and bladder (KUB) may be used by a urologist to outline the structure of a urinary system, including any stone that is larger than 2 millimeters.
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What is the most likely result of the chemical reaction represented by this equation?
Answer:
the substances formed as result of chemical reaction are products
Explanation:
chemical reaction the atoms and the molecules produced by the reaction are called projects in a chemical reaction on the atoms present in the 10th and the up the production of new atoms are created them know and terms are destroyed
Which statement best describes ecological succession?
It is always caused by human intervention.
It occurs after disturbance
It never occurs in a predictable pattern.
It is a series of rapid changes in an ecosystem.
The ____ builds an important barrier against pathogens, but it has to absorb ___ efficiently at the same time.
The small intestine builds an important barrier against pathogens, but it has to absorb nutrients efficiently at the same time for optimum function.
What is a pathogen?A pathogen refers to living microorganisms that are capable of causing diseases and harm to their host. Thus, they include the following:
ProtozoaFungiWormsVirusBacteriaBasically, the small intestine has the ability to build an important barrier against pathogens. However, it has to absorb nutrients efficiently at the same time for optimum function of an organism.
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when testing the temperature of catalase, why did the enzyme catalase work best at 37°c? (select all that apply.)
The catalase worked best at 37 °C because the temperature is optimal.
Enzyme and temperatureEnzymes are proteinous substances that are capable of speeding up the rate of biological reactions.
However, enzymes are very specific in actions and work best at a specific temperature range.
Below the temperature range, the activities of enzymes reduce and may even become denatured.
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give a well-detailed explanation of the importance of the amniotic sac to the mammalian embryo
Answer:
The amniotic sac and its filling provide a liquid that surrounds
and cushions the fetus . It is a site of exchange of essential
substances, such as oxygen, between the umbilical cord and the
fetus. It allows the fetus to move freely within the walls of the
uterus. Buoyancy is also provided
1. The graph to the right shows the interaction of the wolf and moose populations on Isle
Pelkie. If the moose population continues to increase, the wolves' food supply will increase
What will most likely happen to the wolf population as a result?
(DOK-3) (0.5 M)
a.
b.
C.
d.
Population (in hundreds)
60
89 88 9
50
40-
30
20
10
Moose
Wolves
1960 1965 1970 1975 1980 1985 1990 1995
Year
Wolf population will decrease.
Wolf population will increase.
Wolf population will remain the same.
Moose population increases.
The graph is indicating the wolf population has reached the phase where the number of population will remain same. The correct option is C.
What is population?A population is the number of people who live in the same location.
The graph is indicating the wolf population has reached the phase where the number of population will remain same.
Thus, the correct option is C.
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Explain the feelings of Eliezer and his father during the Rosh Hashana celebration
Answer:
got this from a website
Explanation:
Eliezer shares a silent, powerful moment of sadness and understanding with his father. For Yom Kippur, when Jews traditionally fast, his father forbids Eliezer from fasting. Eliezer no longer believes in such rituals, anyway.
it is a feeling of sadness
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Which of the following is true about Earth's freshwater, air, soil and trees? A. Although these resources are renewable, their present benefits can be reduced if used carelessly. B. Although these resources are renewable, they present very few benefits for humans. C. These resources are nonrenewable, so humans must stop using them if they are to survive. D. Although these resources are nonrenewable, humans don't have to worry about conserving them.
Which of the following is true about Earth's freshwater, air, soil and trees?
A. Although these resources are renewable, their present benefits can be reduced if used carelessly.
B. Although these resources are renewable, they present very few benefits for humans.
C. These resources are nonrenewable, so humans must stop using them if they are to survive.
D. Although these resources are nonrenewable, humans don't have to worry about conserving them
There are four layers of cells in the epidermis of thin skin. From superficial to deep, these layers are stratum ______, stratum ______, stratum ______, and stratum basale.
There are four layers of cells in the epidermis of thin skin. From superficial to deep, these layers are stratum corneum, stratum granulosum, stratum spinosum, and stratum basale.
What is the main function of the Epidermis?The main role of the epidermis is to shield your body from harm, or injury, UV radiation, pathogen invasion, and chemical infections.
The considerable superficial part of the epidermis is comprehended as the stratum corneum, while the most profound part of the epidermis is understood as the stratum basale.
Therefore, it is well described above.
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What is data ?
A. a numerical value to represent how accurate
the recordings of an experiment are
B. detailed recordings of experimental
observations
Umak
C. only non-numerical observation from an
experiment
Answer:
B
Explanation:
The definition for 'Data' is facts and statistics collected together for reference or analysis.
So I would answer B as this seems the most appropriate
The data is the detailed recordings of experimental observations. The correct option is B.
What is experimental observations?Because of the physical insight they provide to the scientist in formulating the theory, experimental observations and measurements are widely accepted to be the backbone of physical sciences and engineering.
Observational studies are those in which researchers examine the impact of a risk factor, diagnostic test, treatment, or other intervention without attempting to change who is or is not exposed to it.
Observational studies are classified into two types: cohort studies and case control studies.
Experiments or surveys are used to collect data for statistical studies. The branch of statistics that deals with the design and analysis of experiments is known as experimental design.
Thus, the correct option is B.
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true or false? the leukocytes of the innate immune system are b cells, macrophages, and neutrophils.
The statement that leukocytes of the innate immune system are b cells, macrophages, and neutrophils is TRUE
What are the leukocytes of the innate immune system?The leukocytes of the innate immune system are mainly phagocytes, or phagocytic cells meaning “eating cell”, which describes what role phagocytes play in the immune response.
These phagocytes circulate the body, sort for potential threats such as bacteria and viruses, to engulf and destroy them.
Phagocytic cells of the innate immune system include the mast cells, B- cells, neutrophils and macrophages.
Therefore, the leukocytes of the innate immune system are b cells, macrophages, and neutrophils is TRUE
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The ancestors of elephants inhabited every continent except Antarctica and Australia. But the Asian and African elephants are the only ones to survive. Why?
Options:
A) Dinosaurs killed all other elephant species.
B) Asian and African elephants killed off other species of elephants.
C) Asian and African elephants adapted well to their environments.
Asian and African elephants adapted well to their environments. Thus, the correct option is C.
Environment of Antarctica is not suitable for elephants why?
The world's coldest location is Antarctica. Additionally, it is the windiest and driest. Almost the entire year, the continent is covered in snow. Due to the extremely harsh temperatures and lack of healthy soil, Antarctica is therefore unsuitable for raising elephants and cultivating crops. Elephants eat grass, while the entire continent of Antarctica is covered in snow. In this database, there are currently 25 (8,17) living elephants located in Australia.
Although they can be found in a variety of environments, including deserts, swamps, and highlands in tropical and subtropical areas of Africa and Asia, they are most frequently found in savannas, grasslands, and woodlands.
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is it important to build cities by cutting down all the trees and clearing the forest for the country?
Answer:
At one instance when polution is at its peak we can think that it is not right to cut trees to build cities and factories
but at the same time there are so many peoples .where they will live if there were no cities as people usually migrate from village to city for job and employment.
What is the percent by mass water in calcium chloride hexahydrate?
Answer:
the answer is 3%
It would be 3%.
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Growth of chest hair, deepening of the voice, and muscle growth are secondary sex characteristics. Which structure or structures produce substances most likely to affect the development of these traits?
testes
ovaries
prostate gland
vulva
Answer:
testes
Explanation:
The increased secretion of testosterone from the testes during puberty causes the male secondary sexual characteristics to be manifested. In males, testosterone directly increases size and mass of muscles, vocal cords, and bones, deepening the voice, and changing the shape of the face and skeleton.
Answer:
testes
Explanation:
Growth of chest hair, deepening of the voice, and muscle growth are secondary sex characteristics and their developments are affected by testes
A is an inherited feature that varies from individual to individual.
Answer:
CHARACTER
Explanation:
It is an inherited feature that varies from individual to individual. Genetic cross involving parents that differ in a single character is called a MONOHYBRID CROSS. Most human genes come in alternate versions called ALLELES.
what characterizes an organism
Answer:
movement, reproduction, Growth sensitivity,
Explanation:
these are all things that could be different about an organism which could make them different,
Answer:
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Explanation:
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