Answer:
The individual calcium atom has a positive, not negative, 2 charge.
Explanation:
The error in her study is in the second line of her note which suggests that the individual calcium atoms becomes ions with a negative 2 charge.
When atom loses electrons, it has a net positive charge on it. Not a negative charge. This is because the number of protons is now more than electrons. Therefore, a net charge on the calcium atom will be a positive one. This is her mistake.Answer:
B) The individual calcium atom has a positive, not negative, 2 charge.
Explanation:
Hope this helps. Have a good day!
what makes up cell membranes and is used to create hormones.
A. cholesterol
B. hydrocarbon
C. starch
D. glucose
Answer:
What makes up cell membranes and is used to create hormones?
cholesterol**
All biomolecules have the following traits except
nitrogen elements**
What enzyme breaks down starch in your saliva?
amylase**
Which soil-based compounds do plants use to create amino acids from glucose?
nitrogen**
What is a lipid that makes up cell membranes and is used to create hormones?
cholesterol**
Cholesterol makes up cell membranes and is used to create hormones.
Cholesterol is a necessary lipid for the body as it contributes to the formation of cell membranes and hormones. However, high amounts of cholesterol in the blood have harmful consequences for health.
Cholesterol has different functions in the body such as:
- Formation of structures: It is one of the main components of the plasma membranes of animal cells.
- Contributes to the formation of hormones: sex hormones (progesterone, estrogens, and testosterone), corticosteroid hormones (cortisol and aldosterone).
- Contributes to the metabolization of calcium to obtain vitamin D.
Additionally, the options hydrocarbon (natural chemical compound obtained from the earth to be used as fuel), starch (natural macromolecule that contributes to the human digestion process) and glucose (the most abundant chemical compound in nature that serves as a source of energy for organisms) are not correct options, because these substances do not have the function of forming cell membranes and creating hormones.
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Check Concepts
41. Using the scientific definition, which state-
ment is always true of work?
A) It is difficult.
B) It involves levers.
C) It involves a transfer of energy.
D) It is done with a machine.
Answer: C. It involves a transfer of energy.
Using the scientific definition, the statement that is always true of work is it involves a transfer of energy. The correct option is C.
What scientific theories?Scientific theories are the theories that are given by scientific facts and information. These theories are based on observation of natural things and places.
There is the transfer of energy in the natural world. Every organism and plant is connected with each other in the form of a transfer of energy. This is called a food chain.
In the food chain, the organism is divided into different levels. These levels are based on their food. They are autotrophs, heterotrophs, and decomposers. Autotrophs have the largest amount of energy.
Thus, the correct option is C) It involves a transfer of energy.
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The temperature of the interior of the human body is about 37oC (98.6oF), regardless of the air temperature. Explain the importance of constant body temperature given the role of enzymes as catalysts in the body.
It is critical that we sustain an optimal temperature for our body's enzymes. When it gets too hot, our enzymes denature and become inactive/lost their function. If the temperature is too low, the enzymes will become ineffective.
What is homeostasis?Homeostasis is the state of constant internal, physical, and chemical assumption is supported by living systems in biology.
This is the state of the organism's optimal functioning, and it includes many variables, such as core temperature as well as fluid balance, getting kept within certain pre-set limits.
Enzymes can only function when the body's temperature remains constant. As a result, homeostasis becomes an important part of the body's metabolism.
Homeostasis maintains optimal conditions for enzyme action and all cell functions throughout the body.
It is the preservation of a constant internal environment in the face of changing internal and external conditions. These include blood glucose concentration control in the human body.
Thus, having an optimum temperature is essential in functioning of enzymes.
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*Psychology* Which IQ range indicates moderate mental ***********?
A.
70–79
B.
52–69
C.
36–51
D.
20–35
E.
19 or below
Answer IS CORRECT C 36-51
Explanation:
PLATO GANG
The IQ range that indicates moderate mental *********** is A. 70-79.
What is an IQ?
IQ stands for Intelligence Quotient and is a measure of cognitive abilities and intellectual potential. It is determined through standardized tests that assess various cognitive skills, including problem-solving, memory, and analytical thinking.
The average IQ score is set at 100, with scores ranging from 70 to 130 considered to be within the normal range. Scores below 70 indicate varying degrees of intellectual disability, while scores above 130 suggest above-average intelligence.
While IQ scores can provide insight into a person's cognitive abilities, they do not account for other factors, such as emotional intelligence or creativity, that may contribute to overall success in life. It is essential to recognize that IQ tests have limitations and should not be used to label individuals or limit their potential.
This range is considered to be a mild to moderate intellectual disability, indicating limitations in adaptive functioning and potential need for support in daily life activities.
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What important gas do we take in when we breathe
Answer:
oxygen
Explanation:
we breath in oxygen and release carbon dioxide
hope this helps :)
1. What is the function of the cell membrane? ___________________________________________
2. Explain how the cell membrane maintains homeostasis. ___________________________________
__________________________________________________________________________________
Answer:
Proteins in the cell membrane include cell-surface markers, receptor proteins, enzymes, and transport proteins.
One is to transport nutrients into the cell and also to transport toxic substances out of the cell.
Explanation: I hope this helps
When experiencing oxygen debt, why do human cells not carry out the process of alcoholic fermentation?
If one strand of the DNA molecule had the sequence "ATTGCTC," what will be the sequence of the complimentary strand across from it?
How do we detect the cosmic microwave background radiation?
by looking for radiation at the blue end of the spectrum
through radio telescopes
by looking for a glow in the night sky
through magnifying glasses
Answer:
Through radio telescopes :)
Explanation:
Answer:
through radio telescopes
Help! Need help on this due today!
Answer:
b
Explanation:
HELP AND ILL PUT U IN BRAINLIEST
Answer:
By crossing plants with purple flowers, dominant, with plants with white flowers the offspring will be 100% purple because all the offspring will receive at least one dominant allele.
Explanation:
The crossing of two plants of pure line, one dominant and one recessive, for a trait —the color of the flowers— will produce a hybrid offspring which will express the dominant trait in its phenotype.
Parental generation:
Plant with purple flowers PP Plant with white flowers ppCross: PP X pp
Punnett Square :
Alleles P P
p Pp Pp
p Pp Pp
Offspring: 100% Plants whose phenotype is purple flowers and Pp genotype.
According to this, the descendants will be 100% plants with purple flowers, hybrids, since all the offspring received at least one dominant allele.
DNA and RNA are both types of —
A. enzymes
B. polysaccharides
C. proteins
D. nucleic acids
state the doctorine of original evolution.
Answer:
because it is life
Explanation:
Open Response 2 part A: Plant cells and fungal cells have many of the
same types of organelles. Structures X and Y are found in both plant cells
and fungal cells. Structure Z is found in plant cells, but not in fungal cells. A
- What is party?
X
Z
Which is the region of actively dividing
cells at the tip of the stem?
Answer:apical meristem
Explanation:
Where does the carbohydrate reside ? Where is it found in cells ? What types of food is it found in ?
Question 3 of 5
Which type of weathering is most evident in the image below?
O A. Cracks from temperature changes
O B. Breaking apart by plants
O C. Abrasion
OD. Ice wedging
Answer:
you gotta post a image
Explanation:
Answer:
It's B
Explanation:
Your welcome, and have a lovely day! <3
what is the highlighted number ?
Answer:
I think it is the atomic mass, or the atomic weight.
Explanation:
The number above the symbol is the atomic mass (or atomic weight). This is the total number of protons and neutrons in an atom. The number below the symbol is the atomic number and this reflects the number of protons in the nucleus of each element's atom.
(I'm so sorry if I'm wrong)
Hope this Helps!
please help i will give brainist when i can :)
Answer:
the answer is III.
Explanation:
.OwO.
Hope this helps
What is an example of malignant tumor?
Answer:
Carcinoma.
Explanation:
These tumors form from epithelial cells, which are present in the skin and the tissue that covers or lines the body's organs. Carcinomas can occur in the stomach, prostate, pancreas, lung, liver, colon, or breast.
A student observes the model and claims that the total mass of the reaction is conserved. Is the student's claim correct? Why or why not? A No, because the arrangement of atoms is different in the reactants and products. B Yes, because the reactants and products are made of atoms of the same elements. C Yes, because the number of atoms of each element is the same on both sides of the equation. D No, because the total number of atoms in products is greater than the total number of atoms in reactants.
C. Yes, because the number of atoms of each element is the same on both sides of the equation.
Due to the law of conservation of mass, any system closed to all transfers of matter and energy, the mass of the system must remain constant over time, as the system's mass cannot change, so quantity can neither be added nor be removed.
hope this helped!
how do the villi and microvilli maximize the ability of the intestine to absorb nutrients?
Answer:The function of the plicae circulares, the villi, and the microvilli is to increase the amount of surface area available for the absorption of nutrients. Each villus transports nutrients to a network of capillaries and fine lymphatic vessels called lacteals close to its surface.
Explanation:
Which of the following substances is responsible for transporting materials into and out of the cell by active transport? A. Carbohydrates B. Proteins C. Cholesterol D. Lipids
. Cuando la célula madre se divide varias veces de forma consecutiva y los núcleos se rodean del citoplasma dentro de ella, es una reproducción tipo:
Answer:
Cuando la célula madre se divide varias veces de forma consecutiva y los núcleos se rodean del citoplasma dentro de ella, es una reproducción tipo: esporulación.
Explanation:
En la reproducción asexual, un solo ser origina nuevos individuos iguales entre si e iguales a su progenitor. Este tipo de reproducción es común en ciertos invertebrados, en las bacterias y en los protozoarios. La esporulación es uno de los tipos de reproducción asexual, esta consiste en varias divisiones del núcleo que se envuelve de fragmentos citoplasmáticos, originando muchos descendientes genéricamente idénticos. Dicha reproducción permite la formación de esporas y la liberación de las mismas cuando las paredes de la célula se rompen. Se observa en ciertas especies de protozoarios.
should a business owner be more interested in making money or doing what they are passionate about?why?
Answer:
passion
Explanation:
a business owner should be interested in doing what they are passionate about because if they like something they will make more money and more customers will be attracted to their new project
Which two elements are always found in amino acids?
Answer:
carbon and oxygen
Explanation:
hope this helps :)
write the UNBALANCED chemical equation for photosynthesis. don't forget to include energy
Answer:
ubalanced chemical equation for photosynthesis
Help
How many molecules of oxygen is need to undergo cellular respiration?
Answer:
At least 6. You have to look at the chemical formula for cellular respiration and make sure it is balanced!
C6H12O6+6 O2→6 CO2+6 H2O
Explanation:
Answer:
6
Explanation:
In all three stages of cellular respiration combined, as many as 36 molecules of ATP are produced from just one molecule of glucose.
Does the moon revolve clockwise (to the left) or counterclockwise (to the right)?
Answer:
The moon revolves counterclockwise just like the Earth which is why we only ever see one side of the moon
Explanation:
Answer:yes
Explanation:the moon revolve around the earth
Which example has the most kinetic energy a football resting on a kicking tee a hurt football player sitting on the bench a football flying through a goal post a penalty flag on the ground
Answer:
The football flying through the goal
Explanation:
Kinetic energy is basiaclly moving energy. Since only the football going through the goal is moving, that's the one with the most kinetic energy.