Answer:
biogenetic theory mean the development and evolution processed by Ernst heackel in Germany in the 1860 s . it is one of the several recapitulation which posit that the stage of development for an animal embryo as the same as other animal or adults stage or forms.
root (b) A sugarcane is monocotyledon; therefore it has _______________________ root
Answer:
it has fibrious roots
Explanation:
it has fibrious root because it has monocot leaf so, if there was decot leaf then it will be tap root
List some Characteristic of fruits.
Answer:
Quality factors for fruits include the following— maturity, firmness, the uniformity of size and shape, the absence of defects, skin and flesh color. Many of the same quality factors are described for vegetables, with the addition of texture-related attributes such as turgidity, toughness, and tenderness.
why cells are sometimes called the building block of life?
Answer:
cell is the smallest unit of life, also called the 'building blocks of life' because cells multiply and differentiate to form a multicellular organism as well as give rise to new organism by forming gametes or reproductive spores.
For humans, brown eyes (B) are dominant over blue eyes (b). If a heterozygous brown-eyed male had a child with a blue-eyed female, what percentage of the offspring (F1 generation) would have blue eyes?
Answer:
50%
Explanation:
When you use a monohybrid cross you will get Bb, Bb,bb,bb
Since the brown eyed are heterozygous.
what gender of offspring are most often affected by sextinked inheritance?-What gender-are-usmally-carriers-of the trait?
-males, males
-males, females
-females, females
-females, males O O
Answer:
female, female
Explanation:
this is because sex-linked characters are normally borne in the X-chromosome
a grass hopper movE from place to place when it muscles
Grasshopper contract and relax itz muscles to move
Answer:
Explanation:
A grasshopper's hind legs function like miniature catapults. In preparation for a jump, the grasshopper contracts its large flexor muscles slowly, bending its hind legs at the knee joint. ... The grasshopper then relaxes its leg muscles, allowing the spring to release its energy and fling the insect into the air
Why an apple and a glass of milk can give you more nutrition as compared to the milk shake Prepared from apple and milk. Justify it based on the physiology of GIT.
Answer:
Fruits rich in vitamin C should never be teamed with milk," noted Shilpa. This will come as a shock but experts suggest not combining milk with any type of fruit. ... Milk is a type of animal protein which may cause digestive issues, acidity and fermentation in the gastrointestinal tract when teamed with certain fruits.
Due to difference in the amount of apple and milk.
An apple and a glass of milk can give you more nutrition as compared to a milkshake that is prepared from apple and milk due to there difference in their concentration. A milkshake that is prepared from apple and milk has lower in quantity means half piece of apple and half glass of milk is used while on the other hand, full apple and full glass of milk are more in quantity so they are high in nutrition and energy.https://brainly.com/question/24344323
what are the four postulates of "the theory of inheritance of acquired characters”?
Summary of four postulates of the theory of inheritance of acquired characteristics:
1. Living organisms or their component parts tend to increase in size.
2. Production of new organ is resulted from a new need.
3. Continued use of an organ makes it more developed, while disuse of an organ results in degeneration.
4. Acquired characters (or modifications) developed by individuals during their own lifetime are inheritable and accumulate over a period of time resulting a new species.
Explanation:
1. New needs:
Every living organism is found in some kind of environment. The changes in the environmental factors like light, temperature, medium, food, air etc. or migration of animal lead to the origin of new needs in the living organisms, especially animals. To fulfill these new needs, the living organisms have to exert special efforts like the changes in habits or behaviour.
2. Use and disuse of organs:
The new habits involve the greater use of certain organs to meet new needs, and the disuse or lesser use of certain other organs which are of no use in new conditions. This use and disuse of organs greatly affect the form, structure and functioning of the organs.
Continuous and extra use of organs make them more efficient while the continued disuse of some other organs lead to their degeneration and ultimate disappearance. So, Lamarckism is also called “Theory of use and disuse of organs.”
So the organism acquires certain new characters due to direct or indirect environmental effects during its own life span and are called Acquired or adaptive characters.
3. Inheritance of acquired characters:
Lamarck believed that acquired characters are inheritable and are transmitted to the offsprings so that these are born fit to face the changed environmental conditions and the chances of their survival are increased.
4. Speciation:
Lamarck believed that in every generation, new characters are acquired and transmitted to next generation, so that new characters accumulate generation after generation. After a number of generations, a new species is formed.
How would you
change the hypothesis if mussels died in
both aquariums?
The new hypothesis could be that there is another alternative factor that is negativey afecting dwarfs survivorship.
The previous hypothesis of high levels of phosphate killing mussels is not necessarily disproved. But the death of mussels from both the control and the treatment groups might be related to one of the controlled variables that could be actually afecting them.
----------------------
Probably different levels of phosphate are also affecting invididuals´ survivor rates. However, the fact that mussels from all the aquariums died suggests that there is something else going on that caused the death of all the individuals.
The control group is used to identify any other factors influencing the results obtained in the study, apart from the modified variables of the treatment. Individuals of the control group are selected from the same population as the treatment group. These two groups are identical in all aspects except for the independent variable, which changes in the treatment group but remains constant in the control group.
We know that mussels in this experiment were taken from the same population and grown under the same controlled conditions. Only the treatment group received phosphate, but all mussels died, not only the ones that receive phosphate. This result turns to be useful because it is indicating that there is another variable that is killing mussels. Phosphate might be a cause of death, but there is also something else. So the researchers should pay attention to the controlled variables, such as water quality, temperature, pH, food supply, light exposure, or others.
These variables might be reflecting the real conditions under which mussels live. The results tell that one of these is related to individual death and could be a consequence of climate change or soil use, among other causes.
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As a group, you and three other students must make a presentation on an animal. Which option is the best example of your group coming to a consensus on the
presentation topic?
The group cannot agree on what animal to choose so your teacher chooses your presentation topic.
Each member gets a vote and the animal with the most votes will be the presentation topic.
A group member is selected as the team leader and the team leader chooses the presentation topic.
The group writes options on slips of paper, puts them in a hat, and the paper that is selected will be the presentation topic
Each member gets a vote and the animal with the most votes will be the presentation topic, is the best example of your group coming to a consensus on the presentation topic.
what are the different types of presentation ?Presentations should be always unique as the information we are trying to present.
An informative presentation is always educational, concise, and only specific points are mentioned.
The main aim of an informative presentation is to share information with others.
An Instructive Presentations teaches to the audience on a specific topic, but it goes beyond sharing facts.
Persuasive Presentations is to sell something or persuade the audience to take actions. It present an issue and explain their solution using data.
Motivational Presentations is an inspiring presentations, aim to generate interest in an audience’s approval.
Decision-making Presentations is to shares a problem, their solution and their outcomes can help speed along the process.
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¿Porque las vitaminas, las sales minarales y el agua se consideran reguladores?
Answer:
Vitamins and minerals boost the immune system, support normal growth and development, and help cells and organs do their jobs. For example, you've probably heard that carrots are good for your eyes. It's true! Carrots are full of substances called carotenoids (pronounced: kuh-RAH-teh-noydz) that your body converts into vitamin A, which helps prevent eye problems.
Vitamin K helps blood to clot, so cuts and scrapes stop bleeding quickly. You'll find vitamin K in green leafy vegetables, broccoli, and soybeans. And to have strong bones, you need to eat foods such as milk, yogurt, and green leafy vegetables, which are rich in the mineral calcium.
48. Which of the following is an example of a point source of pollution? Agricultural pesticides from crops Oil spill from a tanker from burning fossil fuels in cars Mercury from in-land coal mines
Answer:
Oil spill
Explanation:
Its the oil spill because the pollution from it can be traced back to a specific source
On an ECG, what does Ventricular Fibrillation mean?
A. Tachycardia, the heart is beating too fast.
B. There is no coordinated contraction of the heart, death is possible in minutes.
C. A lack of oxygen to the heart.
D. Brachycardia, the heart is beating too slow.
Answer:
A
Explanation:
I believe the answer is A because Ventricular Fibrillation means the heart is beating irregularrly, and too fast. Sometimes up to 500bpm
There is no coordinated contraction of the heart, death is possible in minutes. Therefore option B is correct.
Ventricular fibrillation (VF) is a life-threatening cardiac arrhythmia characterized by chaotic electrical activity in the ventricles, the heart's lower chambers.
During VF, the heart loses its ability to pump blood effectively, leading to a lack of blood flow to vital organs.
Without immediate intervention, such as defibrillation to restore a normal heart rhythm, the condition can rapidly progress to cardiac arrest and cause death within minutes.
Unlike tachycardia (A) or bradycardia (D), which involve abnormal heart rates, VF is a more severe and critical situation with disorganized electrical signals and ineffective pumping, requiring urgent medical attention.
Therefore option B There is no coordinated contraction of the heart, death is possible in minutes. is correct.
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Determine whether the statement is trule or false, and why. “Muscles only work to produce movement by pulling, they cannot push."
A. False, it should read "Muscles only work to produce movement by pushing, they cannot pull."
B. False, it should read "A muscle works to produce movement by pushing and pulling."
C. False, it should read "Muscles only work to produce movement by contracting, they cannot push or pull."
D. True
It should be noted that muscles only work to produce movement through pulling, muscles cannot push. Therefore, the statement is true.
Muscles allow people to move by pulling in the joints. Muscles are required to breathe, exercise and stay healthy.
There are three main form of muscles in the human body and they're:
• Skeletal muscles: The muscles give the body its shape as they help in holding the skeleton together.
• Smooth muscle: They're also called the involuntary muscle. They consist of fibers and are controlled by the nervous system. They help in maintaining blood pressure.
• Cardiac muscle: This is the muscle that's found in the heart. It helps in ensuring that the heart function well.
In conclusion, muscles only work to produce movement by pulling, they cannot push.
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Transmission of microbes by direct contact includes: a.drinking contaminated water. b.touching a contaminated countertop. c.inhaling dust-borne microbes. d.sexual intercourse.
Answer:
B is correct
Explanation:
environmental influence on gene regulation
Answer: You can consult:
Environmental factors such as diet, temperature, oxygen levels, humidity, light cycles, and the presence of mutagens can all impact which of an animal's genes are expressed, which ultimately affects the animal's phenotype.
Explanation:
I'm not sure but hope it helps.
In the African savanna, more wildebeests are born than the environment can support. Which is most likely to happen over a period of time?
The following chart lists taxonomy classifications for seven organisms. Some have just one classification, while others have a subclassification. Which four classifications best match the classifications of your fossils? Research the classifications if you don’t know their characteristics.
Classification
Organism 1 Brachiopoda
Organism 2 Mollusca, Gastropoda
Organism 3 Arthropoda, Trilobita
Organism 4 Chordata, Actinopterygii
Organism 5 Pteridophyta
Organism 6 Nematoda
Organism 7 Ascomycota
Now complete the following table to explain your reasoning for the classification of your fossils.
After doing some research I got a close answer.
The table is correct except for the very first one being fossil A. I didn't get that one correct so don't use that one.
Answer:
Explanation:
Organism 1- Brachiopoda Fossil D
Organism 2- Mollusca, Gastropoda Fossil A
Organism 3- Arthropoda, Trilobita Fossil C
Organism 4- Chordata, Actinopterygii none
Organism 5- Pteridophyta Fossil B
Organism 6- Nematoda none
Organism 7- Ascomycota none
Why is the person with low level of hoemoglobin feels tired soon walking
Answer:
When you have too little hemoglobin or not enough red blood cells, your body doesn't get enough oxygen so you feel tired or weak.
Explanation:
Anyone know this??? Help!!!
Devise an experiment to test the effect of pH on the activity of biological washing powder
Answer:
I think you are nepali yeah but I don't have your question ❓ answer
The biological classification of organisms is called taxonomy. Based on your own investigation, discuss the importance of taxonomy in biological research.
Answer:
mark me as brainliest
Explanation:
It helps to ascertain the number of living beings on Earth. More than one million of species of plants and animals have been discovered and classified so far. It aims to classify the living organisms. Millions of organisms are classified scientifically in categories, which helps to have a better understanding
The theory and practice of characterizing, naming, and classifying living things is known as taxonomy. Such research is critical for a basic knowledge of biodiversity and its preservation.
What is the importance of taxonomy in biological research?Taxonomy is important because:
It aids in estimating the number of living beings on the planet. nearly one million plant and animal species have been identified and classified till date.Its goal is to classify living things. Thousands of creatures are scientifically divided into categories, which aids in understanding.It aids our understanding of the characteristics seen in plants and animals.It depicts the physical development in chronological order.It provides an overview of the local fauna and flora, which aids in the identification of endemic species.learn more about taxonomy here:
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What do amino acids, fatty acids, and sugars (monosaccharides) have in common?
A. They are made of carbon, oxygen, and nitrogen.
B. They are made of carbon, oxygen, and hydrogen.
C. They are used to make lipids.
D. They are used to make proteins.
Answer:
Explanation:
C. They are used to make lipids.
What amino acids, fatty acids, and sugars (monosaccharides) have in common is that they are made of carbon, oxygen, and hydrogen which is option B.
Amino acids are the basic structural units of proteins. Each amino group (-NH₂) and a carboxyl group (-COOH) in its molecule. Thus, from the molecular structure of an amino acid, the carboxyl group of the molecule contains carbon, oxygen and hydrogen elements.
Fatty acids are commonly found in lipids ans are made up of long chain alkanoic acids of general formular, RCOOH where R contains about 10 to 18 carbon atoms. the terminal -COOH group contains carbon, oxygen and hydrogen elements.
Sugars (monosaccharides): they are naturally occuring organic compounds containing carbon, hydrogen and oxygen, with the hydrogen and oxygen present in the ratio of 2:1. The general formula for monosaccharides is C₆H₆O₁₂.
Therefore, amino acids, fatty acids, and sugars (monosaccharides) have carbon, oxygen, and hydrogen in common.
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The data table and the cladogram below provide information about the evolutionary history of several different species of animal. Using this information, which of the following is true of trout?
They are more closely related to salamanders than they are to birds.
They are more evolved than salamanders and lizards.
They evolved into a separate species due to the presence of lungs.
They have jaws and lungs but lack claws or nails, feathers, and mammary glands.
Answer:
They are more closely related to salamanders than they are to birds.
Explanation:
According to the data, trout are more closely related to salamanders than birds.
The first data table shows how the salamander only has one extra trait that the trout does not have (lungs).
On the other hand, birds have three extra traits that the trout doesn't have (claws/nails, feathers, and lungs).
The cladogram further shows how trout are more closely related to salamanders compared to birds.
Trout and the salamander are closer together on the cladogram, while the bird is further away. This means they are more related on the evolutionary timeline.
So, the correct answer is that They are more closely related to salamanders than they are to birds.
The statement which is true about Trout is as follows:
They are more closely related to salamanders than they are to birds.Thus, the correct option is A.
What is Cladogram?A Cladogram may be defined as a type of family tree or classification tree which is based on evolutionary relationships. It is also known as a phylogenetic tree.
Trout and the salamander are positioned closer to one another on the cladogram while the bird is being far away. The presence of lungs is marked from the salamander, so trout do not have lungs.
Trouts evolved from Hagfish but not from salamanders and lizards. Trouts only have jaws but lungs, claws or nails, feathers, and mammary glands.
Therefore, the correct option for this question is A.
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What is
FOOD & NUTRITON 1
Answer:
1 How food keeps us healthy. Food is needed for energy and nutrients to exist, it provides energy for work, and warmth for the body. Everybody also needs food to build, maintain and repair their body. It is also required for control of body processes and for protection against disease and infections.
Answer:
Any nutritious substance that people or animals eat or drink or that plants absorb in order to maintain life and growth.
Nutrition is the biochemical and physiological process by which an organism uses food to support its life.
Draw the egg and label it
Answer:
What egg?
Explanation:
Answer:
/’‾‾‾`\
/ \
| |
\.____./
Growers often wrap potted plants in plastic sleeves prior to shipping. If plants remain in these sleeves too long, their leaves curl and fall off. Imagine you are working at a garden center and have been asked to make a presentation to a local garden club. Unit 5 DQ Question: Explain the processes that may cause the leaves to drop and fall.
Answer:
Shock, age and climate.
Explanation:
The processes that may cause the leaves to drop and fall are shock, age and climate. The plants drop their leaves due to shock when they experience by transplanting from place to another. When the leaves get older having yellow colour so due to no function it falls. The climatic condition is also responsible for the dropping of leaves. Those plants which can't grow in cool season so when the winter comes they shed their leaves and wait for the summer season.
What percent of immature T cell thymocytes are eliminated and destroyed by thymic selection to prevent autoimmune diseases?
Answer:
These cells continue to mature and then exit the thymus, armed to inhibit the activation of self-reactive T cells. It has been estimated that the three steps of thymic selection eliminate 98% of thymocytes.
similarities between organic and inorganic fertilizer
Answer:
Organic fertilizers are natural, in that the nutrients they possess are strictly comprised of plant- or animal-based materials. ... Cow manure, decaying leaves, and food compost are all forms of organic fertilizer. Inorganic fertilizer is synthetic, comprised of minerals and synthetic chemicals.
Explanation:
What happens when the density of a medium increases?
Can a cell live without nucleus?
Answer:
No
Explanation:
Because nucleus keep the cell strong and firm. If nucleus is not in a cell then the cell can't live
