Answer:
A chromosome is an organized package of DNA found in the nucleus of the cell. Humans have 23 pairs of chromosomes--22 pairs of numbered chromosomes, called autosomes, and one pair of sex chromosomes, X and Y.
Explanation:
hope this is right for you.
Answer:
Statement 4
Explanation:
1 and 2 are obviously wrong because DNA holds genetic information and doesn't do cell respiration and chlorophyll is a protein not DNA.
3 is wrong because interphase is the first part of mitosis and the chromosomes haven't formed or separated yet.
4 is correct because chromosomes have DNA (and some proteins)
True or false if blood is pumped by the brain?
Which two fit?
Respiration
Photosynthesis
Fossil Fuel Formation
Combustion
Decomposition
Answer:
Explanation:
There are a few types of atoms that can be a part of a plant one day, an animal the next day, and then travel downstream as a part of a river’s water the following day. These atoms can be a part of both living things like plants and animals, as well as non-living things like water, air, and even rocks. The same atoms are recycled over and over in different parts of the Earth. This type of cycle of atoms between living and non-living things is known as a biogeochemical cycle.
All of the atoms that are building blocks of living things are a part of biogeochemical cycles. The most common of these are the carbon and nitrogen cycles.
Tiny atoms of carbon and nitrogen are able to move around the planet through these cycles. For example, an atom of carbon is absorbed from the air into the ocean water where it is used by little floating plankton doing photosynthesis to get the nutrition they need. There is the possibility that this little carbon atom becomes part of the plankton’s skeleton, or a part of the skeleton of the larger animal that eats it, and then part of a sedimentary rock when the living things die and only bones are left behind. Carbon that is a part of rocks and fossil fuels like oil, coal, and natural gas may be held away from the rest of the carbon cycle for a long time. These long-term storage places are called “sinks”. When fossil fuels are burned, carbon that had been underground is sent into the air as carbon dioxide, a greenhouse gas.
Recently, people have been causing these biogeochemical cycles to change. When we cut down forests, make more factories, and drive more cars that burn fossil fuels, the way that carbon and nitrogen move around the Earth changes. These changes add more greenhouse gases in our atmosphere and this causes climate change.
Carbon cycleThe Carbon Cycle
The element carbon is a part of seawater, the atmosphere, rocks such as limestone and coal, soils, as well as all living things. On our dynamic planet, carbon is able to move from one of these realms to another as a part of the carbon cycle.
Carbon moves from the atmosphere to plants. In the atmosphere, carbon is attached to oxygen in a gas called carbon dioxide (CO2). Through the process of photosynthesis, carbon dioxide is pulled from the air to produce food made from carbon for plant growth.
Carbon moves from plants to animals. Through food chains, the carbon that is in plants moves to the animals that eat them. Animals that eat other animals get the carbon from their food too.
Carbon moves from plants and animals to soils. When plants and animals die, their bodies, wood and leaves decays bringing the carbon into the ground. Some is buried and will become fossil fuels in millions and millions of years.
Carbon moves from living things to the atmosphere. Each time you exhale, you are releasing carbon dioxide gas (CO2) into the atmosphere. Animals and plants need to get rid of carbon dioxide gas through a process called respiration.
Carbon moves from fossil fuels to the atmosphere when fuels are burned. When humans burn fossil fuels to power factories, power plants, cars and trucks, most of the carbon quickly enters the atmosphere as carbon dioxide gas. Each year, five and a half billion tons of carbon is released by burning fossil fuels. Of this massive amount, 3.3 billion tons stays in the atmosphere. Most of the remainder becomes dissolved in seawater.
Carbon moves from the atmosphere to the oceans. The oceans, and other bodies of water, absorb some carbon from the atmosphere. The carbon is dissolved into the water.
Carbon dioxide is a greenhouse gas and traps heat in the atmosphere. Without it and other greenhouse gases, Earth would be a frozen world. But since the start of the Industrial Revolution about 150 years ago humans have burned so much fuel and released so much carbon dioxide into the air that global climate has risen over one degree Fahrenheit. The atmosphere has not held this much carbon for at least 420,000 years according to data from ice cores. The recent increase in amounts of greenhouse gases such as carbon dioxide is having a significant impact on the warming of our planet.
Which of the following statements best compares reproduction in viruses with reproduction in single-celled protists? no links please
Viruses require the cellular machinery of host cells to reproduce; single-celled protists reproduce on their own. Therefore, the correct option is (C).
Viruses require the cellular machinery of host cells to reproduce; single-celled protists reproduce on their own. The main difference between reproduction in viruses and single-celled protists lies in their reproductive processes. Viruses are obligate intracellular parasites that lack the cellular machinery required for replication. They rely on infecting host cells and hijacking their machinery to reproduce and create new viral particles. In contrast, single-celled protists are independent organisms capable of self-replication through various mechanisms such as binary fission, budding, or spore formation. They do not need a host cell for their reproductive processes. This fundamental distinction highlights the unique strategies employed by viruses and protists in propagating their species.Therefore, the correct option is (C).
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Question:
Which of the following statements best compares reproduction in viruses with reproduction in single-celled protists?
A. Viruses reproduce by releasing spores; single-celled protists reproduce by dividing in half.
B. Viruses require large colonies to reproduce; single- celled protists reproduce as individual cells.
C. Viruses require the cellular machinery of host cells to reproduce; single-celled protists reproduce on their own.
D. Viruses form haploid gametes when they reproduce; single-celled protists form diploid gametes when they reproduce
Cómo se puede introducir el ADN de una célula en otra célula diferente?
Answer:
En conjugación, el ADN se transfiere de una bacteria a otra. Después de que la célula donante se acerca al receptor mediante una estructura llamada pilus, el ADN se transfiere entre las células. En la mayoría de los casos, este ADN está en forma de plásmido. Explanation:
What is an advantage of being multicellular?
-having lower energy requirements
-producing offspring that mature quickly
-having a high tolerance for extreme conditions
-being more adaptive to the surroundings
4th- being more adaptive to the surroundings
Lactic acid fermentation and alcoholic fermentation both create what?
There are a group of 13 related species of birds on a group of about 20 isolated oceanic islands. These species are grouped into four oubgroups with subgroup 1 evolving to species), subgroup 2 evolving second (1 species), subgroup 3 evolving third (5 species), and subgroup 4 evolving last (6 species. I subgroup 4 evolved most recently, then which the following statements is the most logical prediction?
a) The genomes of subgroup 4 should be more similar to each other than to the genomes of subgroup 3.
b) The chances of hybridization between two subgroup 4 species should be less than the chances of hybridization between two subgroup 3 species
c) The species of subgroup 4 should share tower anatomical homologies with each other than they share with the species of subgroup 4.
d) Subgroup 4 should be limited to the six islands that most recently emerged from the sea.
Answer:
C
Explanation:
easy one - giving brainly if correct.
Answer: is going to be B
is deletion a point mutation
Which statement about biodiversity in coral reefs is accurate?(1 point) *EARTH SYSTEMS*
A) More new species have evolved in coral reef habitats than in most other types of habitats.
B) Species that evolved in coral reef habitats always stay in those habitats.
C) Coral reefs have much biodiversity, but most species that live there migrated from other habitats.
D) Most organisms that live in coral reef habitats are zooxanthellae.
The statement 'more new species have evolved in coral reef habitats than in most other types of habitats.' is accurate. A coral reef is a hotspot of biodiversity.
A coral reef is a marine ecosystem composed of organisms (i.e., corals) that form a wall together (i.e., reef-building corals).
These reefs consist of many colonies of coral polyps, which held together by a calcareous material (i.e., calcium carbonate)
A coral reef is a hotspot of biodiversity because there are many different species that live and evolved in this type of habitat.
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Answer:
'more new species have evolved in coral reef habitats than in most other types of habitats.'
Explanation:
trust
For your club’s fundraiser, you decided to hold a bake sale. In order to make bakery items, you had to purchase 12 pounds of sugar and 15 pounds of flour. Your total cost was $9.30. On a second trip to the grocery store, you purchased 4 pounds of sugar and 10 pounds of flour for a total cost of $4.60. Which of the following represent the system of equations for this problem?
Group of answer choices
A. 12s+15f=9.30
10s+4f=4.60
B. 12s+15f=9.30
4s+10f=4.60
C. 12s+15f=4.60
4s+10f=9.30
D. 12s+4s=9.30
15f+10f=4.60
Answer:
A
Explanation:
Write about an invention that you think the world would be better off without. Why do you believe it is such a terrible invention? What harm has it caused mankind?
Gun
Explanation:
it has caused many to die, yes the government brought that to help with security but it has gotten into Tue hands of those that have no value for human life. Take the case of the Boko harm in surgery in Nigeria, all of them are armed with Ak47's and they use it to kill innocent Nigerians not only that there are series of cases of accidental shootings AND that's how a life is lost. You can't really argue with me considering the fat that life is priceless. thank me later
How is cellular respiration dependant on an animal's respiration rate?
Explanation:
Every cell in an animal requires oxygen to perform cellular respiration. Cellular respiration is the process by which animals take in oxygen and exchange it for carbon dioxide and water as waste products.
Answer:
Every cell in an animal requires oxygen to perform cellular respiration. Cellular respiration is the process by which animals take in oxygen and exchange it for carbon dioxide and water as waste products.
Which statement bests summarizes the law of conservation of energy in an ecosystem
Answer:
Energy is neither created nor destroyed; it is transformed and transferred.
Explanation:
Which statement describes correctly why cells are small?
-when cells are small, the movement of food and waste can be efficiently handled by the cell membrane.
-when cells are small, they can easily work together to form tissue.
-when cells are small, their internal parts can support the cell membrane.
-when cells are small, they can adapt their shape more easily to fulfill their specific function.
How are stem cells nurtured to form a tissue/organ?
Answer:
Stem cells have the capacity to proliferate and to differentiate into relatively mature cells of various types. Embryonic stem cells can become any organ in the body and do so when implanted into a blastocyst. In principle, then embryonic stem cells could be used to replace any organ in the body.
Have a great day! :D
True or False
inherited genetic variations are caused and influenced by environmental factors only
Answer:
False, it can also be caused by mutations.
What organism are tertiary (3rd level) consumers
Answer:
Third-level consumers are any organisms big enough to obtain energy by feeding off lower-level consumers. These are also called tertiary consumers. For example, in a forest ecosystem, snakes eat toads. Heron and large fish, such as bass and walleye, consume smaller fish, frogs and crayfish.
Explanation:
Answer:
The larger fishes like tuna, barracuda, jellyfish, dolphins, seals, sea lions, turtles, sharks, and whales are tertiary consumers Explanation: They feed on the primary producers like phytoplankton and zooplankton, as well as secondary consumers like fish, jellyfish, as well as crustaceans.
Which of the following tools is the best for measuring 100mL of water
Answer:
there should be some options...right?
Answer:
Liquid volume is usually measured using either a graduated cylinder or a buret. As the name implies, a graduated cylinder is a cylindrical glass or plastic tube sealed at one end, with a calibrated scale etched (or marked) on the outside wall.
Beakers and Flasks.
Graduated Cylinders.
Burets.
Pipets.
Which of the following CANNOT be prevented?
Answer:
a. Multiple sclerosis
Explanation: is correct
PMTA are the 4 stages of...
Answer:
premarket tobacco application (PMTA) is an application that must be reviewed and approved by the Food and Drug Administration before a new tobacco product can be legally marketed in the United States.
Explanation:
Suppose that a cell is unable to replicate its DNA. Which of the following would NOT be present in this cell? ******ONLY ANSWER IF YOU KNOW THE ANSWER GIVING BRAINLIEIST******
Answer:
sister chromatids
Explanation:
Suppose that a cell is unable to replicate its DNA, the structure that will not be present in the cell is sister chromatid.
What is sister chromatid?Sister chromatid refers to replicated chromosome that are genetically identical.
Prior to every cell division, a cell must replicate its DNA in order to have an even distribution of genetic material in the daughter cells.
The result of DNA replication is sister chromatids, which carry individual identical DNA.
Therefore, if a cell is unable to replicate its DNA, the structure that will not be present in the cell is sister chromatid.
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how many type of solid? are there name and define them
Answer:
there are 2 types of solid.
crystalline and amorphous
Explanation:
A crystal or crystalline solid is a solid material whose constituents (such as atoms, molecules, or ions) are arranged in a highly ordered microscopic structure, forming a crystal lattice that extends in all directions
In condensed matter physics and materials science, an amorphous or non-crystalline solid is a solid that lacks the long-range order that is characteristic of a crystal
please mark me as brainlist
What kind of fingerprint pattern do they have loops or whorls?
Answer:
loops
Explanation:
.......................
According to urban anomie theory the impersonal nature of city life extends to situations that do not call for social involvement. Please select the best answer from the choices provided T F.
Answer:False
Explanation: right on Edge
The statement "According to urban anomie theory, the impersonal nature of city life extends to situations that do not call for social involvement" is true, as urban anomie theory suggests that the impersonal nature of city life leads to the breakdown of social bonds.
What is urban anomie theory?According to this theory, the fast pace of urban life, the diversity of populations, and the emphasis on individual achievement can lead to a weakening of social ties and a breakdown of social norms and values. As a result, individuals may feel disconnected from others and from society as a whole, leading to a sense of alienation and a lack of meaning in their lives. This sense of normlessness and detachment can extend beyond situations that require social involvement, such as interactions with neighbors or participation in community events, to other aspects of daily life.
Hence, the statement "According to urban anomie theory, the impersonal nature of city life extends to situations that do not call for social involvement" is true.
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Hormones perform important functions within the reproductive system. During puberty, secondary sex characteristics develop. Which hormone is responsible for the development of these characteristics in the female? estrogen progestin progesterone testosterone.
Answer:
Estrogen
Explanation:
Estrogens are a group of hormones that play an important role in the normal sexual and reproductive development in women.
Estrogen is responsible for the development of these characteristics in the female. Therefore, option (A) is correct.
What is Estrogen?Estrogen, also known as oestrogen, is a class of sex hormone that is responsible for the growth and regulation of the female reproductive system as well as secondary sex characteristics. Estrone, estradiol, and estriol are the three primary endogenous estrogens that are responsible for the majority of the hormone activity associated with estrogen.
The growth, development, and physiological functioning of the human reproductive system are all controlled by estrogen. In addition to affecting the neuroendocrine and skeletal systems, this hormone also affects the adipose and cardiovascular systems. Estrogen is a vital component of the male and female reproductive systems and is primarily manufactured by the ovaries in females and the testes in males.
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Câu 12
Phát biểu nào sau đây về giun đũa là đúng?
Answer:
A es la respuesta
Explanation: Espero que esto haya ayudado :)
both members of a pair of chromosomes are inherited from the parents.
Answer:
yes that's true
Explanation:
pls mark brainliest
1.- Leo este poema e identifico el tipo de estrofas que lo componen.
Hoy que has vuelto, los dos hemos callado,
y solo nuestros viejos pensamientos
alumbraron la dulce oscuridad
de estar juntos y no decirse nada.
Solo las manos se estrecharon tanto
como rompiendo el hierro de la ausencia.
¡Si una nube eclipsara nuestras vidas!
Deja en mi corazón las voces nuevas,
el asalto clarísimo, presente,
de tu persona sobre los paisajes
que hay en mí para el aire de tu vida
plsss aiudaaaaaaa
El tipo de estrofas que componen este poema son cuartetos y tercetos.
En los poemas, una estrofa representa una seria de líneas que forman una unidad. Está unidad se puede reconocer porque:
Inicia en mayúscula.Termina con un punto.Además, las estrofas se clasifican de acuerdo a su número de líneas o versos. Esta clasificación incluye:
Pareados: Dos líneas.Tercetos: Tres líneas.Cuartetos: Cuatro líneas.Quintetos: Cinco líneas.De acuerdo a lo anterior, el poema anterior tiene dos cuartetos y un terceto.
Primer cuarteto: Desde "hoy" hasta "nada" (hay 4 líneas).Terceto: Desde "solo" hasta "vidas" (hay 3 líneas)Segundo cuarteto: Desde "Deja" hasta "vida" (hay 4 líneas)Aprenda más en: https://brainly.com/question/25457320
what will happen if the cooling system in a nuclear power station fails to function?
Answer:
In some nuclear reactors, water is used as a coolant. If this cooling mechanism fails, the temperature in the reactor core can rise dangerously high. The most dramatic such 'meltdown' was the Chernobyl disaster of 1986.
