Answer:
The aortic and pulmonary valves, the close to prevent blood from flowing back into the ventricles.
9. Most agricultural fields receive inputs of phosphorus, calcium, and magnesium, which are usually obtained by mining rocks containing those elements, grinding them up, and adding them
to fertilizers. Assess the likely impact of this practice on the demand for certain rocks and on soil dynamics with regards to both a) a nutrient cycle and b) a feedback loop.
This practice has a great impact on the demand of certain rocks.
There is great impact of this practice on the demand for certain rocks because they are necessary for the higher productivity of crops so their demand as well as price of that rock increases. This practice of adding of nutrients has good effects on soil dynamics as well as on nutrient cycle because these nutrients are not only use by the plants as well as by soil in order to maintain its structure.
A feedback loop is the part of a system in which some portion of the system's output is used as input for future operations. In this situation, the feedback loop is negative because all the materials are used from outside and the output can't be used in the system so we can conclude that this practice has a great impact on the demand of certain rocks.
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what does the axon of a postganglionic neuron synapse with?
The autonomic nervous system (ANS), fibers from the central nervous system to the ganglion are known as preganglionic fibers. The axon of a postganglionic neuron synapse with synapses with the effector organ.
Preganglionic neuron is known too be the first neuron in the two-neuron chain found in the brain or spinal cord. Its axon is known to have synapses with the postganglionic neuron.Postganglionic neuron is also known as the second neuron that is found in the automatic ganglion. Its axon synapses is connected to the effector organ.
Preganglionic axons synapse that is found in the sympathetic chain ganglia with a postganglionic neuron.
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Why do yeast not contain chlorophyll?
1. Yeast does not need to absorb sunlight to make energy.
2. Yeast can only survive in the dark.
3. Yeast does not need oxygen to make energy.
4. There is not enough space in the yeast to contain chlorophyll
In addition to hot surface temperatures, which characteristic makes Mercury different from Earth?
Answer:
Mercury is different because:
Mercury is smaller and not a large as Earth, about 1/3 the size of EarthThe composition of Mercury is more metallic than the one of EarthA single day for Mercury is about as long as two Earth yearsIt also has no moonsHas cratersHas no atmosphereHope this Helps!
Answer:
the distance
Explanation:
the distance from mercury to the Sun is 57,600,000km
while for erth the distance from the sun is 148,800,000km
Pieces of Earth's crust move on top of the: Group of answer choices outer core ocean inner core mantle
Answer:
mantle
Explanation:
What role do decomposers play in the movement of matter
through an ecosystem?
Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers
Why was the lion fish able to go from a very small initial population on the coast of Florida to taking over the Atlantic coast and Bahamas
Answer and Explanation:
Due to the lionfish not having any known predators in this region, it was able to reproduce with ease and no worry of any attackers, so nothing to keep the animal in check.
Because of this, the animal became an invasive species, and the people are trying their best to get rid of the species here by allowing anyone to catch it (with a permit/license as so non-permit people don't harm themselves) at anytime of year.
#teamseas #CTO (Clean The Ocean)
I hope this helps!
Look at the diagram. Name organ 1.
Answer:
Organ 1: Stomach
Explanation:
The stomach holds food while it is being mixed with stomach enzymes. These enzymes continue the process of breaking down food into a useable form. The liver regulates most chemical levels in the blood and excretes a product called bile. This helps carry away waste products from the liver. All the blood leaving the stomach and intestines passes through the liver. The large intestines are to absorb water and salts from the material that has not been digested as food and get rid of any waste products left over. By the time food mixed with digestive juices reaches your large intestine, most digestion and absorption have already taken place. The small intestines have three parts: the duodenum, jejunum, and ileum. It helps to further digest food coming from the stomach. It absorbs nutrients (vitamins, minerals, carbohydrates, fats, proteins) and water from food so they can be used by the body. The small intestine is part of the digestive system.
What are some things water will adhere to? and What are some things water will not adhere to?
Answer:
1. Water has an amazing ability to adhere (stick) to itself and to other substances. Hydrogen bonds form when hydrogen atoms covalently bonded to nitrogen (N), oxygen (O), or fluorine (F) in the form of covalent compounds such as ammonia (NH3), water (H2O) and hydrogen fluoride gas (HF).
2. In the case of water, hydrogen bonds form between neighboring hydrogen and oxygen atoms of adjacent water molecules. The attraction between individual water molecules creates a bond known as a hydrogen bond.
HELP PLZ ASAP true or false
1 then an organism is asymetrical it means that no matter where you slice it in half the two sides are always mirror imiges true or false?
2 The phylum cnidaria is charicterized by organisms that shoot barb cells contains a potint toxin true or false?
Answer:
1 false
2 true
Explanation:
The Theory of Evolution is based on the concept of natural selection. Name and explain two requirements for natural selection.
Which planet from our solar system and the ESRT is most similar in size to Kepler-11b?( can someone please answer this question quickly I only have three minutes to answer.
Answer:
Explanation:
Which two planets have the most similar orbit shape?
Answer: Neptune and Earth.
Explanation: The two planets in our solar system that have an orbital shape most similar to the orbital shepe of kepler-11b are Neptune and Earth. Kepler 11b is an exoplanet discovered around the star by the Kepler spacecraft, a NASA-led mission to discover Earth-like planets.
Please help me complete this table!
here is some help: these to photos should give you the answer to this chart hope it helps.
name and describe three ways to protect the world's biodiversity
Answer:
use these 3 things, they should help, let me know if you need anymore information
which chromosome pair is involved in the mutation triple x syndrome
54954 gmfn 45443 rfe546654
A 10kg mass is lifted to a height of 2m. What is its potential energy at this position?
Answer:
m=10kg h=2m Ep=mgh Ep=(10kg)(9.8 m/sec2)(2m) Ep=196J
Explanation:
The formula for potential energy depends on the force acting on the two objects. For the gravitational force, the formula is P.E. = mgh, where m is the mass in kilograms, g is the acceleration due to gravity (9.8 m / s2 at the surface of the earth) and h is the height in meters.
Which best describes a neutralization reaction?
ООО
O a reaction between an acid and a base
a reaction between two acids
a reaction between a base and a salt
O a reaction between two salts
Answer:
Reaction between acid and base
What are the theory of cell ?
Answer:
that living organisms are made up of cells, that they are the basic structural/organizational unit of all organisms, and that all cells come from pre-existing cells.
Explanation:
________________ results from microevolutionary changes that increase the likelihood of survival and reproduction.
Answer: Adaptation
Explanation:
How has the study of mitosis affected scientists’ knowledge of cancer?
It led to a study of how to induce cancer cells to divide more rapidly.
It led to an understanding of how cancer cells divide so rapidly.
It led to the development of contact-inhibition regulators.
It led to the discovery of how to prevent cancer cells from dividing.
Answer:
It led to the understanding if how cancer cells divide so rapidly
Help …. I’m new and looking for help with these questions
Put the following fossils into the correct order, from oldest to most recent, based on when evidence of their evolution first appears in the fossil record.
I. Humans
II. Trilobites
III. Winged insects
IV. Dinosaura
V. Bacteria
A. V, III, IV, II, I
B. II, V, IV, I, III
C. V, II, III, IV, I
D. I, II, V, II, IV
Answer:
the answer would be C.
Explanation:
V,II,III,IV,I
The correct option is C. V, II, III, IV, I
BacteriaTrilobitesWinged insectsDinosauraHumansWhat is fossils?Fossils exist the preserved remains of plants and animals whose bodies existed buried in sediments, such as fossil , under ancient seas, lakes, and rivers. Fossils even contain any preserved trace of life that exists typically more than 10 000 years old.
A fossil exists as any preserved stays impression or trace of any once-living thing from a past geological age. Examples contain bones, shells, exoskeletons, stone patterns of animals or microbes, objects maintained in amber, hair, petrified wood, oil, coal, and DNA remnants.
The correct option is C. V, II, III, IV, I
BacteriaTrilobitesWinged insectsDinosauraHumansLearn more about fossil reefer to;
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#SPJ2
Which biomolecule has a carbon-nitrogen bond?
The answers are
Starch
Glucose
Protein
Answer:
protein
Explanation:
it is called a peptide bond
I dont know to do delate
Answer:
what to delete if you say the full information I could help you to solve
Which food group is shown in the picture below?
Answer:
The food group is Protein
Pls help me I’m being timed I really need to pass this
I said in comment but the answer is
Pyramid of Biomass
Good luck on your assignment dear ^^
How does how fast you're breathing affect cellular respiration.
Answer:
the breathing rate and volume of each breath increases to bring more oxygen into the body and remove the carbon dioxide produced. the heart rate increases, to supply the muscles with extra oxygen and remove the carbon dioxide produced.
can anyone help i struggle with biology :)
In fish and chip shops, potatoes are cut into chips several hours before they are cooked.
The mass of water in the chips must be kept constant.
To ensure this, the chips are kept in sodium chloride solution.
The drawing shows some apparatus and materials (Potato slices, tweezers, knife, test tubes, and some weighing scales)
Describe how you would use the apparatus and materials to find the concentration of sodium chloride in which to keep the chips so that the mass of water in the chips remains constant.
you must include: measurements, and how youd make it a fair test. 6 marks.
I dont neccessarily need a full answer, just some help!! thank you!!
It kept saying I was using swear words, so I had to take a screenshot instead twt
What happens to a leaf when it has lost much-needed water?
Answer:
When a leaf loses its much-needed water its turgor pressure decreases.
Explanation:
I hope this helps!
What is the systematific name of maize
Answer:
Zea mays subsp.
Explanation:
Tbh I looked it up
