Answer:
A
Explanation:
Describe the concept of natural selection. Be sure to include contributing scientists and their contributions.
Answer:
Natural selection is the process in which survival of the fittest, a concept by Charles Darwin suggests that animals adapt to better suit their needs. Those who survive are the "fittest" and breed children with the trait until the unfit die out. He saw this with the Galapagos finches. there used to be 1 kind of finch, now there are 14.
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Fill in the blank. Bacteria of viruses can cause ----------- diseases. Which are increasing in occurrences geographic area, or both
Which element is considered the most versatile element in living organisms and why?
Answer:
Carbon
Explanation:
Answer:
C: carbon, because it can bond with many elements to form complex molecules
Explanation:
What is the answer, help me!
Answer:
4. They blow faster
Based on the information in the graph, explain what physical process causes the cell to change size.
Answer:
Osmosis
Explanation:
Osmosis is the process in which solvent molecules move from lower to higher concentration through a semipermeable membrane.
When a cell is placed in a hypertonic solution, the cell loses water and moves from higher concentration to lower concentration that is from inside the cell to the water solution and causes shrinking of cell.
Shrinking of cell means decrease in size of the cell along with the passing time and cell loses all its water.
Hence, the correct answer is osmosis.
Energy "moves from place to place." The term that describes this is___
a. Energy displacement
b. Energy transition
C. Energy transfer
d. Energy movement
Answer:
C. Energy transfer
Write one scientific question about the organism in the photo.
Answer:
Please attach the photo of the organism.
Explanation:
What conditions on Earth enable life to exist?
Answer:
- Earth's gaseous atmosphere (which consists of water vapor, 21% oxygen, 78% nitrogen, .9% argon) The water vapor helps regulate temperature and of course, oxygen is an essential aspect for us to breathe
- The availability of water
- Sunlight
- A constant seasonal cycle (caused by the tilt of the Earth's axis & a perfectly sized moon which maintains the tilt)
The highest level of cellular organization requires the cooperation of multiple.
cells or systems ?
A wave with a height of 5 feet and a wavelength of 15 feet has a wave base of __
Answer:
The answer is 7.5 feet.
Explanation:
When a wave has a height of 5 feet and a wavelength of 15 feet then it has a wave base of 7.5 feet. Wave base is equal to the half of the wavelength so if you consider your wavelength to be 15 feet then it is divided into 2 that would give you answer of 7.5 feet.
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A red blood cell placed in distilled water will swell and burst due to the movement of Your answer: salt from the distilled water diffusing into the cell water molecules moving by osmosis into the cell water from the red blood cell moving into the distilled water
Answer:
Due to the movement of surounding water ijnto the cell.
Explanation:
A red blood cell placed in distilled water will swell and burst due to the movement of - water molecules moving by osmosis into the cell.
Osmosis is the movement of water that diffuses from a higher water concentration area to a lower water concentration area.
The distilled water outside the red blood cell, since it is 100% water and no salt, is hypotonic to the red blood cell.The red blood cell will gain water, swell ad then burst.Thus, a red blood cell placed in distilled water will swell and burst due to the movement of - water molecules moving by osmosis into the cell.
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What are the four ways drugs can affect the nervous system?
Answer: They cause complete paralysis, and even stop the person from breathing, stimulate the synapse so that once an impulse crosses the gap the impulse is repeated over and over again, and They cause all the muscles in the body to go into a continuous spasm of constriction. They can also cut off communication to the nervous system that's where you feel the numbness in painkillers Hopefully this helps!
List and Explain four reasons why soil is so important to human survival.
Answer:
Explanation:
Soil is our life support system. Soils provide anchorage for roots, hold water and nutrients. Soils are home to myriad micro-organisms that fix nitrogen and decompose organic matter, and armies of microscopic animals as well as earthworms and termites. We build on soil as well as with it and in it.
According to the Punnett square for this cross, what percentage of offspring is predicted to have blue feathers?
25 percent
O 50 percent
O 75 percent
O 100 percent
Answer:
50 percent
Explanation:
The answer above is NOT correct.
I took the test on Edge and 50 percent is right!
According to the Punnett square for this cross,50% percentage of offspring is predicted to have blue feathers.
What is Punnett square ?The Punnett square is a table in which all of the possible outcomes for a genetic cross between two individuals with known genotypes are given.
How do you find the Punnett square?Count the total number of boxes in your Punnett Square. This gives you the total number of predicted offspring.
Divide the (number of occurrences of the phenotype) by (the total number of offspring). Multiply the number from step 4 by 100 to get your percent.
Therefore, according to the Punnett square for this cross,50% percentage of offspring is predicted to have blue feathers.
Hence ,B is correct option
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2 Polnts
Humans and gorillas have one different amino acid in their hemoglobin
sequence. What does this say about the evolution of these two species?
A. Gorillas recently evolved from humans.
B. They have no common ancestors.
C. They probably have
recent common ancestor.
O D. They are probably the same species.
SUBMIT
Answer:
they probably have a recent common ancestor
Explanation:
They probably have recent common ancestor. Therefore, option (C) is correct.
What is evolution?Evolution is the process by which species change over time, usually through natural selection. The theory of evolution is supported by a vast body of evidence from many fields, including genetics, paleontology, and comparative anatomy.
Evolution occurs because of changes in the genetic code of organisms, which can be caused by mutations, gene flow, genetic drift, and natural selection. Over time, these changes can accumulate and result in the development of new species from ancestral forms. Evolution is a slow process that occurs over many generations, and it has been responsible for the incredible diversity of life on Earth, from the simplest bacteria to the most complex animals and plants.
The fact that humans and gorillas have one different amino acid in their hemoglobin sequence suggests that they have a recent common ancestor. This is because the hemoglobin protein plays an essential role in carrying oxygen in the blood and is highly conserved across species that share a common ancestor.
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Energy Distribution provides utilities, which are
career advancement opportunities.
services provided to people and organizations.
materials provided to people and organizations.
products for commercial consumption first.
Answer:
services provided to people and organizations
Energy Distribution provides utilities, which are products for commercial consumption first.
How Energy Distribution provide utilities?The most common media used to distribute energy are steam, air, hydronics and electricity.
These form of media creates products like electric power that offer services and career advancement opportunities.
Whereas hydronics provides utilities to people and organizations.
Hence Energy Distribution provide utilities to products for commercial consumption first.
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Water that is in a condensed form can be absorbed through leaves.
True
False
Answer:
True
Explanation:
It can happen but it unlikely in most cases because of the less efficient way. It is more efficient to take it in through the ground
Answer:
True
Explanation:
Vaccines have been subjected to quite a bit of controversy in recent years. Currently, the Centers for Disease Control and Prevention (CDC) recommend that healthy people receive a flu vaccine every year. What are your current perceptions of the flu vaccine? Do you think these recommendations are appropriate? Explain your reasoning.
Answer:
There are many reasons to get an influenza (flu) vaccine each year.
Flu vaccination can keep you from getting sick with flu.
Flu vaccination can reduce the risk of flu-associated hospitalization for children, working age adults, and older adults.
Flu vaccination is an important preventive tool for people with chronic health conditions.
Flu vaccination helps protect women during and after pregnancy.
Flu vaccine can be life-saving in children.
Flu vaccination has been shown in several studies to reduce severity of illness in people who get vaccinated but still get sick.
Getting vaccinated yourself may also protect people around you, including those who are more vulnerable to serious flu illness, like babies and young children, older people, and people with certain chronic health conditions.
Explanation:
Influenza is a potentially serious disease that can lead to hospitalization and sometimes even death. Every flu season is different, and influenza infection can affect people differently, but millions of people get flu every year, hundreds of thousands of people are hospitalized and thousands to tens of thousands of people die from flu-related causes every year. An annual seasonal flu vaccine is the best way to help protect against flu. Vaccination has been shown to have many benefits including reducing the risk of flu illnesses, hospitalizations and even the risk of flu-related death in children.
Flu vaccines helps to reduce the risk of flu-associated illness. And the recommendations made by CDC that healthy people receive a flu vaccine every year is appropriate.
What is flu?"Also called influenza is a viral infection which can be deadly in high risk groups."Flu symptoms include- fever, cough, cold, fatigue, headaches and muscle pain.It causes asthma, pneumonia and chronic diseases.What is flu vaccines?"These are the vaccines that protect against infection by influenza viruses."What is CDC?"It is the National public health agency of the United States."Hence, in order to reduce the disease caused by flu, it is recommended to receive a vaccine.
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2- What are the primary sources of ionizing radiation ? Give examples of each
Answer:
Ionizing radiation comes from these main sources:
Nuclear reactions in the Earth's sun and stars in space.
Radioactive decay in the body's tissues and in the soil.
Radioactive decay of unstable elements in rocks, especially rocks that contain radium and release radon gas.
Other examples of ionizing radiation include alpha, beta, and gamma rays from radioactive decay.
Why do two grams of fat provide a different amount of energy than two grams of carbohydrates? (2-3 sentences)
Answer:
Fats are the slowest source of energy but the most energy-efficient form of food. Each gram of fat supplies the body with about 9 calories, more than twice that supplied by proteins or carbohydrates. Because fats are such an efficient form of energy, the body stores any excess energy as fat.
Explanation:
Which is part of the theory of evolution by natural selection?
A. All animals in a population are able to reproduce.
B. Animals have no variation among themselves.
C. Adaptations cannot be passed along to later generations.
D. Small changes add up over many generations.
Answer:
D. Small changes add up over many generations.
Explanation:
It's not A because not all animals in a population can always reproduce. Some may be infertile.
It's not B because genetic variety is something that occurs naturally. Because of genetic variety, random mutations can occur (these mutations later become adaptations).
It's not C because adaptations can be passed down to later generations. These adaptations can lead to natural selection which eventually leads to evolution.
what is the resistance of a car light bulb that conducts 0.025 A current when connected to a 12 V car accumulator? Is the current in the bulb steady?
Answer:
R = 480 Ohm
Yes, the current is steady since the power supply is a constant 12V (comming from the battery).
Explanation:
U=I*R
R = U / I
U = 12 V
I = 0.025 A
R = 12 / 0.025
R = 480 Ohm
Which occurs when the body response to the environment by maintaining a stable internal environment despite changing external conditions
Answer:
homeostasis
Explanation:
Responding to the environment by maintaining a stable internal environment despite changing external conditions is characteristic of living things. The maintain of stable internal environment called homeostasis. Other characteristics of living things are: the possibility to produce, one or more cells, the possibility to grow and develop...
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Is kidney disease a genetic or environmental disease? Why?
Brainiest to best answer
Which of the following types of training would most likely be required for a forest technician?
A. genetic analysis
B.animal physiology
C.plant life cycles
D.Menghting
Answer:
C. plant life cycles
Explanation:
Answer: The correct answer is C.plant life cycles
Explanation: This answer has been confirmed correct.
What kind of banded rock is formed by cavities in rocks left by gas bubbles?
A. Fossils
B. Marble
C. Agates
Which elements are involved in creating genetic
material? Check all that apply.
carbon
hydrogen
oxygen
nitrogen
phosphorus
sulfur
Answer:
Explanation:
The elements that are involved in creating genetic material include carbon , hydrogen , oxygen , nitrogen , phosphorus. Explanation; -Genetic material is mainly the DNA and RNA.
Answer: The answer your looking for is A,B,C,D and E
Explanation:
How far apart are Y and B?
Answer:
about 23 letters apart
Explanation:
Which of the following best describes why polar bears are a sub-species of brown bears instead of a completely separate species?
A. Because they both have thick fur and 4 legs, so they are very similar
B. Because they both live on the same continent, so they can’t be two separate species
C. Because they can still breed in the wild. Once they no longer mate with brown bears, they will be considered a separate species
D. All of the above
Which product of cellular respi tion is used by the human body for energy?
O oxygen
Ο ΑΤΡ
O sunlight
O CO2
Answer:
The answer is option 2.
Explanation:
ATP is the main product of cellular respiration.