Answer:
Veins are blood vessels in humans, and most other animals that carry blood towards the heart. Most veins carry deoxygenated blood from the tissues back to the heart; exceptions are the pulmonary and umbilical veins, both of which carry oxygenated blood to the heart. In contrast to veins, arteries carry blood away from the heart.
Explanation:
lab report interdependence of organisms. plz someone tell me the project i need everything not just the data
Answer:
Introduction Purpose: Explore the interdependence of organisms by
performing an experiment with lima bean plants and earthworms. Question: How can the presence of one species benefit another in
the same ecosystem?
Hypothesis: If plants grow in soil containing worms, then the
plant growth will be greater, because worms help decompose organic matter and distribute it through the soil in a form that plants can use.
Explanation:
A teacher showed this animal to students on a field trip. Which tool will the students use to record the animal's behavior? A. Graduated cylinder B. Notebook C. Tape measure D. Hand lens
Answer:
note book
Explanation:
nothing else would work
How do rocks become igneous rock?
Answer:
Igneous rocks form when magma (molten rock) cools and crystallizes
Explanation:
So first when the sedimentary rock is formed and adds some heat pressure in which it turns to metamorphic rock, and after a long time heat + cool down which it will turn to igneous rock!
Which of the following cells is responsible for maintaining bone and the correct levels of oxygen and minerals?
Answer:
c. Osteocytes
Explanation: is correct
Nitrites are added to foods to: a. prevent formation of carcinogens. b. change their color. c. improve their nutritive value. d. inhibit rancidity. e. improve their texture.
Nitrites are added to foods to inhibit rancidity. These compounds are used in the food, chemical and pharmaceutical industries.
Nitrites are conservant that prevent the growth of Clostridium botulinum and Listeria bacteria.
These bacteria (Clostridium botulinum and Listeria) are harmful to human health, thereby nitrites must be added to foods.
In meats, nitrites also exhibit some other beneficial properties which include the pink color, antioxidant properties, and savory flavor.
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Which of the following statements is TRUE?
*Thin myofilaments contain actin, tropomyosin, and troponin.
Thick myofilaments contain myosin and tropomyosin.
Thin myofilaments contain myosin.
Thick myofilaments contain actin, tropomyosin, and troponin.
Answer:
a. Thin myofilaments contain actin, tropomyosin, and troponin.
Explanation: is correct/post protected
19. Dax just completed a report on car transportation. He concluded that gasoline
prices will likely rise significantly in the years to come and recommends lower-
cost car transportation for the future. Dax's younger sister, Ava, just completed a
report on air pollution. Ava concluded that gasoline-powered cars cause too
much pollution and recommends that they should not be used in the future.
Which of the following is a solution for the future that would follow both Dax's
and Ava's recommendations?
A solution for the future that would follow both Dax's and Ava's
recommendations will be to develop cars that run on fuels that pollute less
and cost less than gasoline.
The use of other fuels such as electricity is cheaper than gasoline and will
help tackle the problem of the rising cost of gasoline.
The use of alternative sources doesn't involve the release of gases such as
carbon monoxide etc which pollutes the environment as carbon isn't burned
when electricity is used.
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Answer:
development of cars that run on fuels that pollute less and cost less than gasoline
Explanation:
what protects the lining of the stomach from acidic gastric juices
Answer:
The Mucus that is around the inner lining
Explanation:
What controls circadian rhythms in humans? Explain how this process works.
What is the process in which a hydrogen ion brakes off of the water molecule forming one H+ ion and an OH- ion
Answer: Neutralization.
Explanation: When a base and an acid are mixed, the hydroxide ion and the base combines with the hydrogen ion from the acid to form water. This process is called neutralization.
3. Humans belong to the class of
A.Arthropoda
B.Tetrapoda
C. Mammalia
Answer:
i think its c but im not sure
Explanation:
sorry if its wrong
Answer: C. (Mammalia)
We, Humans, are part of the mammal class.
Mammalian mammals are a group of vertebrate animals that belong to the Mammalia class.
a cockroach is a fast-moving insect. how can an animal with an open circulatory system be so speedy?
Cockroaches have 6 legs and each leg has 3 knees, 18 knees in total. Since the cockroach has so many joints in its legs its can accurately pick up speed when running away from something
An animal like a cockroach with an open circulatory system is so speedy because in these organisms tracheal system delivers oxygen throughout the body.
What is an Open circulatory system?An open circulatory system may be characterized as a type of circulatory system in which blood vessels are completely absent and blood generally flows freely through the cavities of the body. This type of circulatory system is present in arthropods.
Due to the absence of blood vessels, the flow of blood is extremely high in animals that have an open circulatory system. Apart from this, in cockroaches, oxygen is carried out through the tracheal system because of the absence of the lungs. So, it makes the process so speedy.
Therefore, an animal like a cockroach with an open circulatory system is so speedy because in these organisms tracheal system delivers oxygen throughout the body.
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please help asap!!!! will be marked as brainlist !! do not spam or u will be reported
Answer: water cycle: evaporation condensation precipitation
carbon cycle: fossil fuel combustion, co2 in atmosphere, photosenthises prob spelled wrong
Explanation nitrogen cycle bacteria, nitrogen separting bacteria n2, nitrogen in the air, nitrate salts back to bacteria
pro wrong but there ya go
experiments with isotopes used as tracers showed that some fungi _____.
how do you propagate trees
Answer:
The simplest method of propagating a tree vegetatively is rooting or taking cuttings. A cutting (usually a piece of stem of the parent plant) is cut off and stuck into soil.
Remove any flowers or fruit on the cutting. Trim the stem to just below where the bottom most leaf meets the stem. On each of the leaves on the stem, cut off half of the leaf. Put the end to be rooted.
How was Earths climate changed over time?
Answer:
Explanation:
These changes have been triggered by the changing configuration of continents and oceans, changes in the Sun's intensity, variations in the orbit of Earth, and volcanic eruptions.
When a star becomes a red giant it will
1.shrink
2.shrink and cool
3.shine hotter
4.expand and cool
Stars spend approximately from a few thousand up to 1 billion years as a red giant. The helium in the core eventually runs out and the fusion process stops. The star then shrinks until a new helium shell reaches its core.
Therefor the answer is 2.shrink and cool
I hope this helps!
Answer:
Shrink an cool I took the test
What is paresthesia?
Answer:
b. The _________ when a nerve is under pressure for too long
Explanation: is correct
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Can climate changes be linked only to the greenhouse effect? Why or why not?
An increase in the atmospheric concentrations of greenhouse gases produces a positive climate forcing, or warming effect. ... The warming effect associated with carbon dioxide alone increased by 36 percent
the type of voltage-gated channel that possesses an inactivation gate that temporarily closes after the channel is active is the
The sodium channel possesses an inactivation gate that temporarily closes after the channel is active.
In neurons, sodium channels are responsible for the ascending phase of the action potential (depolarization).
Characteristically, this channel has two transmembrane voltage-dependent gates.When the membrane is depolarized to the threshold, both gates are activated, but since one of them opens rapidly while the other closes slowly, the channel remains open for less than 2-5 milliseconds.Therefore, we can conclude that the sodium channel is responsible for the depolarization and possesses two gates which one temporarily closes after the channel is active.
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Glucose and oxygen make what?
____________ results from chemicals in car exhaust reacting with the sunlight.
Acid Rain
Contaminant fog
Smog
Greenhouse Effect
Answer:
smog
Explanation:
Photochemical smog is a mixture of pollutants that are formed when nitrogen oxides and volatile organic compounds (VOCs) react to sunlight, creating a brown haze above cities.
Which gas is produced as a result of cellular respiration.
Answer:
Carbon dioxide
Explanation:
11. What are the proteins used in active transport called?
The answer carrier proteins
Chemical to thermal to electrical current?Energy conversion of corn
Answer:
A battery is a device that converts chemical energy contained within its active materials directly into electric energy by means of an electrochemical oxidation-reduction (redox) reaction. This type of reaction involves the transfer of electrons from one material to another via an electric circuit.
Which animal has a digestive system most similar to a human?
1. cow
b. jellyfish
c. octopus
d. wolf
Answer:
Explanation: The cow is a ruminant animal. Ruminant animals are known for the unique way their digestive systems work.
Which body system is depicted in the body
Answer:
The human body is comprised of a series of complex systems, including the skeletal system, the respiratory and digestive systems, as well as the intricate networks of blood and lymph vessels, all controlled by the brain and nervous system.
small substances are passively moved from the blood to the filtrate in:
Answer:
I believe it would filter in the Glomerular filtration.
Explanation:
I dont think you really need one based on the question.
please help
help help
Answer:
m= p+e
Explanation:
If the individuals in a population mate at random, and if allele h1 is at frequency 0. 60, what is the frequency of h1h1 offspring?.
Answer: Frequencies of two alleles in a gene pool before and after many random matings
Explanation:
Frequencies of two alleles in a gene pool before and after many random matings
The allele frequency of h1h1 in offspring is 0.36 if individuals in the population mate at random, the allele of interest is divided by the total number of copies of all the alleles.
What is the frequency of the allele?The number of times the allele of interest is detected in a population is divided by the total number of copies of all the alleles at that particular genetic locus in the population to compute the allele frequency.
In a population, if individuals mate at random sampling if h1 has a frequency of 0.60, the frequency of h1h1 offspring is 0.36, in the population.
The frequency of alleles can be expressed as a decimal, a percentage, or a fraction. Allele frequencies vary from 0 (present in no people) to 1 (present in all individuals); in a population, all allele frequencies for a particular gene add up to 100%.
Therefore 0.36 is the frequency of h1h1 in the population for individuals at random mates for h1 frequency of 0.60 in the population.
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