what is percentage of oxygen of inhaled air
Answer:
21%
I hope this helps!
which of the following is a function of the nucleus.
stores sugar
packages proteins
stores dna
builds proteins.
Answer:
Stores DNA.
Explanation:
The nucleus is the control center of the cell.
How do enzymes support life functions of the cell and the body
Explanation:
Enzymes help speed up chemical reactions in the human body
the chemical formula for water is
Answer: The chemical formula for water is H2O!
Answer:
H2O
Explanation:
H2O
BRAINLIEST! oIF YOU DONT KNOW THE ANSWER DONT ANSWER AT ALL PLEASE! THIS NEEDS TO BE CORRECT OR I WILL LITERALLY HUNT YOU DOWN!!!
Answer:
dude how am I gonna answer
i can just place it for you dude.
Explanation:
Sound travels faster at higher temperatures
true false
Answer:
True
Explanation:
Temperature is another condition that affects the speed of sound. Heat, like sound, is a form of kinetic energy. Molecules at higher temperatures have more energy and can vibrate faster and allow sound waves to travel more quickly.
Therefore, sound travels faster at higher temperatures and slower at lower temperatures.
Serotonin and Dopamine are 2 of the many neurotransmitters that are released when a synapse occurs.
A) true
B) False
Answer:
it is true
Explanation:
There is a large number of mitochondria in cardiac muscle cells because cardiac muscles need the mitochondria to:
1)work harder and longer.
2)maintain their shape.
3)maintain their color.
4)be attached to the ribs.
Answer:
to work harder and longer
Answer:
a. work harder and longer.
Explanation:
The diagram shown represents a cell that will undergo mitosis. Which diagrams below best illustrate the nuclei of the daughter cells that result from a normal mitotic cell division of the parent cell shown?
Diagram A best illustrates the nuclei of the daughter cells that result from a normal mitotic cell division.
Mitosis is a type of cell division by which a parental cell divides to produce two genetically identical daughter cells.In this case, the parental cell has three homo-logous pairs of chromosomes, thereby both daughter cells will also have three pairs of homo-logous chromosomes-Somatic (body) cells reproduce by mitosis, while germinal cells reproduce by meiosis.In conclusion, diagram A best illustrates the nuclei of the daughter cells that result from a normal mitotic cell division.
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Please answer it’s due at 4!!!!!!!!??
Answer:
sexual reproduction
Explanation:
Try not to say the time, because we are not the same time zone.
we are different countries;) lol
Make a claim about which organism(s) use carbon dioxide and which organisms) produced carbon dioxide. How did your test conditions affect the cycling of matter between plants and animals?
Evidence: Describe specific observations from your experiment to support your claim.
Reasoning: Did your observations support your claim? Describe, in detail, the connections between the evidence you gave and the claim you are making
Answer:
an organism is like a plant
how would you determine the hardness of a mineral
Mohs Hardness Scale
Explanation:
A mineral's hardness is a measure of its relative resistance to scratching, measured by scratching the mineral against another substance of known hardness on the Mohs Hardness Scale.
The stage of meiosis where the chromosomes do not move apart equally and cause chromosomal abnormalities is
Answer: anaphase
Explanation: Nondisjunction can occur during anaphase of mitosis, meiosis I, or meiosis II. During anaphase, sister chromatids (or homologous chromosomes for meiosis I), will separate and move to opposite poles of the cell, pulled by microtubules
Hope this helps :)
What type of infection is transmitted by athlete’s foot?
Bacterial
Fungal
Parasitic
Viral
Answer:
Fungal
Explanation: took the test!! :)
Fungal, Because the athlete's foot is a fungus, and is transmitted to an athletes foot. Hope it helps
help!!!! i’ll give brainlest
Answer:
Lipids
Explanation:
Answer:
Lipids
Explanation:
Decomposers, detrivores, and scavengers feed on dead organic material. How are decomposers different from scavengers and detrivores?.
Answer:
Okay, so a detrivore is a type of decomposer.
Basically, scavengers eat their food while decomposers do not eat the food, but instead break it down further externally.
The difference between a decomposer and the scavenger is that the scavenger is the one that consumes dead plants, animals or carrion to break down the organic materials into small particles.
The decomposer instead consumes the remains produced by the scavengers.
Examples of decomposers can be bacteria and fungi.
Examples of scavengers can be animals (like insects, birds, little critters)
Explanation:
Which of the following statements describes the structure of the plasma membrane?
a It is a lipid bilayer with the hydrophobic area pointing inward, and the hydrophilic area facing outward.
b Protein molecules make up the membrane, which makes it a strong structure.
c The plasma membrane is made mainly from carbohydrates that give the cell energy.
d It is made primarily of cholesterol that allows the cells to communicate with others.
Answer:
A. It is a lipid bilayer with the hydrophobic area pointing inward, and the hydrophilic area facing outward.
Explanation:
The plasma membrane (also known as the cell membrane) is a membrane that separates the cell's interior from the environment that surrounds it, protecting it. It consists of lipids, proteins, and carbohydrates.
Its main component are phospholipids that create a bilayer. Phospholipids consist of two hydrophobic tails and a hydrophilic head and are arranged so that the tails face inward and the heads outwards.
This is why option A is the correct one.
You can see an image of the cell membrane's structure to help you visualize this below:
a) Which country looks like it is experiencing exponential growth?
b) Which country looks like it has reached its carrying capacity?
c) Because it has reached its carrying capacity, describe the relationship between
its birth rates and death rates.
d) Describe what is happening to Europe's population size in terms of birth rates
and death rates.
e) Which country or countries could be experiencing:
emigration:
Explain your answer.
.
-immigration:
Explain your answer.
India has a sharp rising trend and a quickly growing population, so it appears to be growing exponentially. It seems that Japan's carrying capacity has been achieved.
How do population growth and carrying capacity relate to one another?Growing populations may be impacted by increased density in a given area. The greatest number of a species that an ecosystem can sustain is referred to as the carrying capacity of a region. Carrying capacity is based on the amount of resources available (food, habitat, water).
What are some examples of exponential population growth?The term for this quick trend of population rise is exponential expansion. The best illustration of exponential development is found in bacteria. Via prokaryotic fission, prokaryotes, such as bacteria, divide.
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What is the final step of the cell cycle, directly following mitosis?
Anaphase
Cytokinesis
Interphase
Metaphase
Answer:
Cytokinesis
hope it help u :) ✌❤
What are the similarities and differences between the two karyotypes?
Answer:
The typical human karyotypes contain 22 pairs of autosomal chromosomes and one pair of sex chromosomes (allosomes). The most common karyotypes for females contain two X chromosomes and are denoted 46,XX; males usually have both an X and a Y chromosome denoted 46,XY.
Explanation:
I need help please
Answer:
75 percent, 25 percent
Explanation:
Which characteristic of sound makes it possible for bats to fly in the dark without hitting any objects?
Answer: echo location
Explanation:
What is a fixed allele?
O A. An allele that mutates with each generation
B. An allele that is found on many genes
C. An allele present in all members of a population
ОО
D. An allele that formed by adaptive radiation
Answer:
C. An allele present in all members of a population
Explanation:
Just took the quiz
A fixed allele is an allele that is present in all members of a population and has a frequency of 100%. Therefore, option (C) is correct.
What is an allele?An allele is a variant form of a gene that arises through mutation and is located on a specific location on a chromosome, known as a locus. Genes code for specific traits or characteristics, such as eye color or blood type, and alleles determine the variations of these traits.
For example, the gene that determines eye color has several different alleles, including blue, green, and brown, which produce different variations of the trait.
Alleles can be dominant, meaning that they are always expressed in the phenotype of an organism, or recessive, meaning that they are only expressed when paired with another recessive allele. The combination of alleles that an individual inherits from their parents determines their unique genotype and phenotype.
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explain why bacteria, in particular, are very useful organism in the process of genetic engineering
Answer: The bacterial cells are being used in order to create genes and produce human insulin. The bacteria is used to make protein, which is a good thing. I hope this at least helped, and I believe this is why bacteria is useful organism in the process of genetic engineering.
the dysregulation of hormones may affect several pathways and processes in their body, which leads to risk in the emerging possibility for type ii diabetes, cardiovascular disease, infertility.
The most prevalent hormonal illness, polycystic ovarian syndrome, mostly affects adolescent girls as their hormonal balance and menstrual regularity mature.
Anovulation, dysmenorrhea, and amenorrhea are caused by the variability of menstrual hormones and other causes.The dysregulation of hormones may have an impact on a number of physiological pathways and functions, increasing the risk of type II diabetes, cardiovascular disease, and infertility.Genetics, neuroendocrine, lifestyle/environment, and obesity are among the risk factors that predispose people to PCOS. The pathophysiology of PCOS primarily focuses on hormonal disruption, insulin resistance, and hyperandrogenism causing poor folliculogenesis and increasing the risk of related comorbidities such endometrial cancer and type II diabetes.The explanation of potential treatments for controlling the syndrome coupled with lifestyle adjustment, which can be used singly or in combination depending on the symptoms.
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Your question seems incomplete, please find the complete question below:
Discuss the effects of hormonal dysregulation in humans.
What must occur for protein translation to begin?
How do simple diffusion and facilitated diffusion differ?
Answer:
Simple diffusion does not require energy: facilitated diffusion requires a source of ATP. Simple diffusion can only move material in the direction of a concentration gradient; facilitated diffusion moves materials with and against a concentration gradient.
Explanation:
What is the name of this leaf
Answer:
A beam leaf
Explanation:
All of the following describe outcomes of urbanization except
O decreased soil pollution
O food chain disruption in a natural habitat
O increased wastewater from sewage drainage
O loss of plant biodiversity
Answer:
O decreased soil pollution
Explanation:
Urbanization does not lead to decreased soil pollution.
Pollution is the introduction of contaminants into the environments. As urbanization progresses and the population of people in a place increases, soil pollution increases.
Also, industrial expansion causes increased production of wastes. So, some of these wastes find their way into the environment of which the soil is a main component. There is an increased amount of soil pollution.A population of ducks lives in an area that floods many times each year. Some of the ducks are better at finding food on dry land, while other ducks are better at finding food in wet, muddy areas. Eventually, the land around the lake permanently changes from dry soil to wet, marshy mud.
How will this change to the land most likely affect the duck population?
The population will remain stable because the ducks will not be affected by this kind of change.
The population will eventually balance out so that there are equal numbers of both types of ducks.
The population will evolve so that most ducks survive no matter how they find food.
The population will evolve so that most ducks are better at finding food in wet, muddy areas.
Answer:
D. A duck flies to another pond.
The above sentence is an example of emigration. Emigration refers to moving from one area to another for a long or permanent period. In this instance, a duck is leaving the pond it originally resided in (along a population other ducks) in order to reside in another pond. Therefore, it can be said that the duck "emigrated".
Explanation:
The answer is C
heheh
brainlest please