Answer:
Musle Tissue
Explanation:
Muscle tissue helps in body & its parts movements. It is able to do so, as it consists of special contractile cells - which can contract (shorten) in response to stimulus. And, then help the movable bones to move.
Equal masses of steel wool are placed in four beakers. Equal amounts hydrochloric acid (HCI) are added to three beakers in the following concentrations: 0.5M, 1, 0M and 3.0 M. Water is added to the fourth beaker. Hydrochloric acid reacts with the metal in steel wool Which observation is most likely?
Answer: the steel wool in the 3.0 M HCl reacts fastest.
Explanation:
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Accoring to the data table, Molly observed rust on the sample of iron filing and dries the sample thoroughly. She then finds the mass of the entire sample and finds it has more mass than the 188g of the original sample. As the rusted iron filing occurred in an open system, which of the following best explains the increase in mass?
Select one:
A. The sample gained mass because rust is a different color than the iron fillings, and the different color rust has more mass that the original iron fillings.
B. The sample gained mass because the iron fillings combined with oxygen in a chemical reaction, thus making the final rusted sample to have more mass.
C. Molly made a procedure mistake when measuring the mass of the entire sample. She should remeausre her sample.
D. The sample gained mass because rust is a physical change and the color change causes the mass to be more than the original sample.
Answer:
I think you are looking for B
write a paragraph explaining your opinion. Do you agree with the vaccination movement or not?
Answer:
yes
Explanation:
Maybe they should experiment a little more, because they are not completely sure about them yet, and it could cause seriously disastrous consequences, like brain damage, but vaccinations are good. They will help people to not get sick, and hopefully lower the spread of disease. People are lining up to get vaccinated, because they are afraid of the disease. The vaccination is a way to soothe those fears. So, the vaccination movement, is a good thing, and doctors and scientists should go ahead with it.
What causes gene flow ?
Answer: Evolution and Migration
Explanation: When evolution occurs genes can be passed on through natural selection. The gene flows occur when there is migration because they can be transferred from different types of populations.
Coyote
Raccoon
Cottontail
rabbit
White-footed
mouse
White-tailed
deer
Green
plants
Berries,
fruits, nuts
How many organisms in this food web eat only producers?
(Enter a number only!)
The role of antibodies in the human body is to
a. Stimulate pathogen reproduction to produce additional white blood cells
b. Increase the production of guard cells to defend against pathogens
c. Promote the production of antigens to stimulate an immune response
d. Recognize foreign antigens and mark them for destruction
Answer:
b
Explanation:
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Some scientists are modifying the genetic code of certain fish by inserting genes that cause the fish to produce more growth hormone, which causes the fish to grow more quickly. Salmon is one type of fish on which scientists are working. Which answer choice shows the most significant negative impact to society that could result from producing genetically modified salmon?
Salmon cells could become less responsive to the hormone over time, slowing the growth rate of the fish.
Salmon could be reintroduced into the ecosystem where they could breed with, and alter, populations of wild salmon.
The genetically modified salmon will be very expensive to raise, so the fish will be too expensive for people to buy.
The modified, farmed fish would be more difficult for predators to hunt than wild salmon if reintroduced into the ecosystem.
Answer:
breeding with and altering the population of wild salmon
the extra growth hormone could change the wild salmons reproductive fitness, could slow them down or make them less fertile or more fragile so they aren't able to spawn etc and reduce the wild population of salmon which would have large effects
there is a rainforest in BC that's survival relies on the nutrients that salmon bring when they spawn and die
It could also be scare mongering and have no negative effect, could be a net positive??
Explanation:
Escribir las 3 razones propuestas para la situacion 1 Si tú estás en casa y te han hablado y has escuchado sobre el coronavirus, que es un virus respiratorio que al ingresar al cuerpo puede provocar daños en tu sistema respiratorio, escribe 5 medidas de bioseguridad que debes de tener en cuenta para evitar el contagio, debes explicar cada una de ellas diciendo o cómo se debe realizar o por qué es importante realizarlo. y escribir 5 ventajas de la respiración aerobia frente a la anaerobia.
Answer:
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Type the correct answer in the box. Spell all words correctly.
What is the correct term for a large number of species in an ecosystem?
An ecosystem with a large number of species is said to have__________
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Symbiotic fungi get their food by ____________.
Question 6 options:
absorbing dead or decaying organisms.
harming the host.
not harming the host, but not helping it.
Snow owls prey on lemmings in their arctic habitat, and their survival is closely linked to the abundance of lemmings. In years when there are many lemmings, snowy owls may raise a dozen babies. How might a scarcity of lemmings affect the snowy owl population?
Answer: A scarcity of lemmings will cause for the population of snowy owls to decrease, as their resources have been limited.
Why do all animals share the same kingdom ?
Answer:
They share the same kingdom because they are all identified by a one-word "animal" which makes them all fall under the same kingdom which in that one kingdom they are in diffrent groups like bird and mammal.
Explanation:
Explain how our body systems work together to get oxygen into and around our body
PLS DONT COPY AND PASTE THE ANSWER FROM THE INTERNET
The respiratory system and lungs work very closely with the cardiovascular system for the uptake and elimination of gases and the distribution of energy in the body.
How Oxygen from the air is absorbed?Oxygen from the air is absorbed into the bloodstream through the lungs. When it reaches the lungs, the function of the cardiovascular system begins, since that is where the non-oxygenated blood is oxygenated and returns to the heart.
When in the cardiovascular system, the blood reaches the capillaries in the tissues, oxygen is released, which the cells use to produce energy. These cells release waste products, such as carbon dioxide and water, which are absorbed and transported by the blood.
O2 and CO2 are constantly circulating and passing from one medium to another, so much so that O2 passes, along with other gases, from the atmosphere to the airways, entering through the nostrils and driving through the larynx, trachea, source bronchi, terminal bronchioles, respiratory bronchioles, alveolar sacs and alveoli.
Therefore, The respiratory system and lungs work very closely with the cardiovascular system for the uptake and elimination of gases and the distribution of energy in the body.
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which piece of equipment will be the best for measuring
75 mL of liquid?
Which is larger, 40 centimeters or 670 millimeters?
Answer:
670 Millimeters
Explanation:
1 Millimeter = 0.1 Centimeter
670 millimetres is equal to 67 cm which is greater than 40 cm. So 670 mm is greater than 40 cm.
What is a millimetre?It is a unit of measurement for length/distance. It is a very small unit of measurement. It is a visible unit of measurement, unlike a micrometre which is smaller than a millimetre but measures things that are not visible to the unaided eye.
It is a part of the metric system commonly used in Science, Technology Engineering and Mathematics (STEM). A millimetre is measured as one-thousandth of a metre.
The word metre is derived from a Greek word which means measure. The metric system that is used internationally for the measurement of various quantities is based on decimals.
Like a millimetre is one-thousandth of a metre, a micrometre is one-millionth of a metre. A centimetre is one-hundredth of a meter and a quantity smaller than a micrometre called a nanometer is one-billionth of a meter.
Therefore, 670 mm is 67 cm which is greater than 40 cm.
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What are the differences between flatworms and sponges
Why does a butterfly fly in an erratic pattern?
What are the effects of overpopulation, how can they be controlled, and why does this matter?
Answer:
Explanation:
Overpopulation refers to too much number of people occupying space that is not enough for them. That increase in the number of people that resources and space could not contain.
The effects of overpopulation include;
Environmental Pollution
Global warming
Deforestation
Overfarming
Eutrophication
Too much demand on food, water, housing, healthcare, transportation
Overpopulation can be controlled through the following;
Education i.e enlighten people.
Empowering women to be independent and avoid teenage marriage.
Family planning.
Through government intervention and incentive.
It is very important to control over population so as to reduce environmental pollution, availability of resources for man, non extinction of non Renewable natural resources, reduction in disaster , fights, conflicts e.t.c.
Effects of overpopulation includes unemployment and environmental degradation.
It can be controlled by educating the general public.
Population control is essential for a healthy and prosperous existence, for good health and education.
Define overpopulation.Overpopulation, also known as overabundance, occurs when the population of a species exceeds the environment's carrying capability.
Effects of overpopulation are as follows:
Natural resource depletion.Environmental degradation.Wars and conflicts.Unemployment is on the rise.Overpopulation can be controlled in the following ways:
Educating the general public helps them comprehend the need of having only one or two children at maximum.Because the world's population is rapidly increasing, promoting public knowledge about family planning and informing people about the dire consequences of overpopulation can assist to slow population increase.Population control is essential for a healthy and prosperous existence, for good health and education, and for a country's rapid progress. Population management is also required to decrease the stress on nature and to address the growing environmental challenge.
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How does energy and matter move through the environment under aerobic and anaerobic conditions?
What is the significance of a balanced diet for maintaining a healthy level of biomolecules in our cells and body to function disease-free?
Answer:
A balanced diet makes our body work in the best possible way. Both the lack of food and the excess of them is detrimental to health, therefore the appropriate amounts must be consumed for each individual. It meets our basic physiological needs and reduces the risk of disease.
Explanation:
Food is the set of processes that allows organisms to use and transform nutrients to stay alive. A balanced diet will largely depend on the human being leading a healthy life. The foods that are consumed each day must have adequate amounts of both the macronutrients (carbohydrates, proteins, lipids), as well as the micronutrients (minerals and vitamins) and water, which are bioavailable that the consumed diet must contain, in order to satisfy the requirements physiological of each individual. In addition to covering individual variability, for some nutrients an additional amount is added to establish a margin of safety. Complying with the appropriate amounts avoids and prevents overweight, obesity, as well as chronic degenerative diseases such as diabetes mellitus, dyslipidemias, cardiovascular diseases, cerebrovascular disease, etc. and in turn helps the person to look and feel better, increasing physical and mental performance. Poor nutrition means neglecting some nutrients or overdoing others. This is the main factor that promotes progressive weight gain and obesity according to experts.
The table below shows the two surface features and the processes that are likely to form them.
Surface Features and Processes
Feature Process
Coastline A
Sea Cliff B
Which processes are represented by A and B?
Group of answer choices
A = erosion by wind and water; B = erosion by water
A = erosion by water; B = deposition and erosion by wind
A = deposition; B = deposition
A = erosion by wind; B = erosion by wind
Answer:
B
Explanation:
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what is the difference between passive transport and active transport
melting of ice block is permanent or temporary
Answer:
temporary
Explanation:
ice is just water in solid state, and melting it returns it to the liquid state. you can always re freeze water
What did most people believe before
Darwin's theory of evolution?
A. Humans were only related to
chimpanzees, but not other animals
B. The first species appeared on Earth
about six million years ago
C. Each species was unchanged since the
moment of its creation.
D. All of the above
Answer:C each species was unchanged since the moment of its creation
Explanation:
people believed we were all the same and we just were there on the earth
Before Darwin's theory of evolution people believed that : ( C ) Each species was unchanged since the moment of its creation
Before Darwin proposed the theory of evolution most people believed that the species of plants and animals on earth were not connected to each other and could not have evolved from each other. because they believed that human species were outside the earth given that the earth was perceived as been too young.
Darwin's theory of evolution proposes that species evolve ( change in physical attributes ) over time through the process of natural selection. Darwin believed that man evolved from Apes over million of years.
Hence we can conclude that Before Darwin's theory of evolution people believed that : Each species was unchanged since the moment of its creation.
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14. What are three examples of inherited animal traits
Answer:
fur color, fur length, and eye color.
Explanation:
these are all 3 popular character traits.
Answer:
3 examples include fur color, ear shape, and spots or stripes on the animal's outer covering.
Explanation:
Compare lysosomes and vacuoles to the excretory system.
They both ...
Answer:
The lysosome and vacuole are similar to the excretory system. They both store waste and removes waste. The nucleus is similar to the nervous system. The both provide instructions for the functioning of the system. Summary. Cells are highly organized which allows for specialization of each cellular process.
Explanation:
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Which one of the following is an example of a negative feedback loop?
Scratching a mosquito bite, causing it to itch more
Sexual arousal, leading to desire for more stimulation
Eating when your blood sugar is low
All of the above
Answer:
Eating when your blood sugar is low.
Explanation:
A negative feedback loop is a loop that destresses or neutralizes a loop. If your blood sugar dropped and you are food that would counter act your drop in blood sugar returning it to a neutral level.
All chemical reactions
A. Involve the creation of new atoms.
B. involves a change in chemical bonds.
C. are dangerous.
D. create energy
Answer:
c
Explanation:
Tatjana's vision for detail is declining. She once loved doing embroidery, but has switched to sculpting with clay, which is easier on her vision. This is an
example of selective________
with compensation
Optimization
Answer:
im confused what your asking if your asking but i think its optimization yes
Explanation:
What happens to energy that is released from food, but not captured and store into
ATP?
Answer:
In conditions of low or no oxygen the process of anaerobic respiration occurs. The 'an' in 'anaerobic' means without. During anaerobic respiration, the oxidation of glucose is incomplete - not all of the energy can be released from the glucose molecule as it is only partially broken down.
Explanation: