the nucleus is the brain of the cell.
FOR THE SECOND TIME-----Ughhh can someone answer this dang biology question I cant!!!!! I will mark you brainliest!!Referring to the graph, what phases together would account for approximately 25% of the time spent from a cell in the cell cycle?
A) M phase and S phase
B) S phase and M phase
C) G1 phase and M phase
D) G2 phase and M phase
Answer:
D. G2 phase and M phase
Explanation:
If we are looking for what takes up 25% of the graph, that would be the last option. If you look at G1, it takes up about 50%. So, G1 phase and M phase would take up more than that, and we want 25% not 50+. The M phase and S phase would take up about a third, so no. The G2 phase and M phase takes up roughly 25% or, it's the closest to this.
What are the correct answers?
Answer:
31
Ans:Keeping planets in orbit around the sun.
32
Ans:one object is heavier and has more mass.
Which phrase describes the equator?
is a line of longitude
is situated at 0 degrees
connects the North and South Poles
separates the Eastern and Western Hemispheres
Answer:
b) is situated at 0 degrees
Explanation:
the equator is the latitude and it is like a rule in an equal-area map, when you put it horizontally at the center of the earth the rule is at 0 degrees but if you put it vertically at the center it is 90 degrees
and I just take the test, hope it helps :)
Answer:
b is situated at zero degrees
Explanation:
Where did DDT come from?
Answer:
Originally developed as an insecticide, it became infamous for its environmental impacts. DDT was first synthesized in 1874 by the Austrian chemist Othmar Zeidler. DDT's insecticidal action was discovered by the Swiss chemist Paul Hermann Müller in 1939.
What organ system in the human body contains pituitary gland, hypothalamus gland, and thyroid gland?
Answer:
B
Explanation:
what is one advantage of having many small cells insted of one larg cell?
Answer:
It's more efficient
Explanation:
Information is transmitted quicker and more efficiently than it would if the cell was larger. It's easier to transport in and out of the cells, making them more efficiently controlled and regulated.
16. ___________________ and __________________ are fossil species with characteristics unique to fish as well as characteristics found in fish and tetrapods. Describe the characteristics of lobe-finned fish that are similar to those of tetrapods.
Answer: Acanthostega and Ichthyostega
Explanation:
The Acanthostega and Ichthyostega are the two different species of fossils that exhibit characteristics that can be found in fish and tetrapods.
The following are the characteristics or features of lobe finned fish that are similar to tetrapods are:
1. Lobe: The teeth are covered with tooth enamel.
2. Fins of lobe: Finned fish are flexible that support them for movement on land as well.
3. Presence of gills
4. All the body parts are connected with a single bone.
5. Pectoral and pelvic fins are used for articulation of the limbs.
you guys HELP i’m fr abt to just give up
im not exactly sure what im looking at? im assuming you have to find the code from the clock? If it follows the A, B, C, and D order wouldnt it be 9, 1, 4, 6 ?
try 9146 for the code
PLEASE HELPPPPPPPP
Which statements accurately relate photosynthesis to the other processes of the carbon cycle shown in the diagram? Select all of the correct statements.
A. Photosynthesis is the only biological process that takes up carbon dioxide.
B. Photosynthesis has the same effect on the carbon cycle as human activities.
C. Photosynthesis has the same effect on the carbon cycle as geological activities.
D. Photosynthesis is the only process that transfers carbon from the air to the biosphere.
E. Photosynthesis is the only process of the carbon cycle that involves energy.
In a paramecium, the nucleus divides first and then the cytoplasm divides, forming two identical daughter cells. Which type of reproduction takes place in paramecia?
Answer:
Fission
Explanation:
This form of asexual reproduction is called binary fission. During this, a single parent cell divides and we are left with two daughter cells of equal sizes. Each of these daughter cells can and most likely will grow into the size of the parent cell. This is very common in prokaryotes that usually copy their DNA before dividing.
Answer:
fission
Explanation:
Un organismo con un caracter genotípico heterocigote presentará, excepto A Alelos iguales B una linea híbrida C alelos diferentes D una linea pura E a y d
Answer:
C alelos diferentes.
Explanation:
Los alelos son las distintas formas en las que un gen puede ser expresado. Cuando un gen es dialélico implica que puede haber dos formas diferentes del mismo gen, una dominante y otra recesiva. Estos alelos serán heredados de la línea parental en la que un progenitor aporta un alelo y el otro progenitor aporta otro alelo, que se combinaran durante la formación del cigoto. La combinación de alelos de un mismo gen en un organismo determina la forma en la que determinada característica será expresada en el individuo.
• Cuando dos alelos iguales se combinan en un organismo, se habla de un genotipo homocigota. Estos alelos pueden ser los dos dominantes o los dos recesivos.
• Cuando se combina un alelo dominante con uno recesivo, se habla de genotipos heterocigotos. El individuo que posea un genotipo heterocigota, portará ambos alelos pero expresará el fenotipo del alelo dominante.
PLS HELP!!!!!! to answer these questions fill in the blank with the answer. A _________ is a single-celled biotic pathogen that is infectious. A _________ is an abiotic pathogen that is infectious. A _________ is a biotic pathogen that lives off its host. A _________ is a biotic multi-celled pathogen that causes infections like ringwor
Answer:
Bacteria
Virus
Parasite
Fungi
Explanation:
A Bacteria is a single-celled biotic pathogen that is infectious. Bacteria are prokaryotes(single celled) and also form part of the disease causing organisms .
A Virus is an abiotic pathogen that is infectious.
A Parasite is a biotic pathogen that lives off its host. It sometimes uses structures such as hooks to obtain nutrient material from its host.
A Fungi is a biotic multi-celled pathogen that causes infections like ringworm.
convection only occurs in
Answer:
Convection only occurs in liquids and gases. For example: Air and ocean
Answer:
Liquids and gasses
Explanation: things in liquid form can flow so if you have something in solid form it will,not,flow think of a rock water cannot flow through it because it is solid but when broken water flows freely.
What does a carbohydrate need to be broken down into
Answer:
glucose
Explanation:
Answer:
your answer should be glucose what plants eat i think <3
Explanation:
What were the results of van Helmont's
experiments?
A. Plants gain their mass from water
B. Plants gain their mass from soil
C. Plants produce oxygen during photosynthesis
Please help, 10 points
Answer: A
Van Helmont concluded that most of the mass the plant gained had come from water.
Which test tube(s) acts as a negative control against protein
Answer:
Water plus Biuret's reagent will act as a negative control in the proteins
Explanation:
ughhh can someone answer this dang biology question I cant!!!!! I will mark you brainliest!!
Referring to the graph, what phases together would account for approximately 25% of the time spent from a cell in the cell cycle?
A) M phase and S phase
B) S phase and M phase
C) G1 phase and M phase
D) G2 phase and M phase
Answer:
A - M phase and S phase
Explanation:
Identify the two gases exchanged between the body and the air during respiration explain how this gas exchange happens.
Answer:
The two gases involved in gas exchange are oxygen and carbon dioxide. Oxygen from the air is absorbed by the blood, and carbon dioxide is released. This gas exchange occurs in the alveoli.
Explanation:
This is what i did thank you have a nice day ☺️
The two gases exchanged between the body and the air during respiration are Carbon dioxide and oxygen.
What is respiration?Respiration is defined as a metabolic process wherein, the living cells of an organism obtains energy (in the form of ATP) by taking in oxygen and liberating carbon dioxide from the oxidation of complex organic substances.
The human body is designed to exchange gases with the external environment or atmosphere. The external environment consists of numerous gases and oxygen being a vital gas is an essential part of the body.
Thus the exchange of gases in the human body takes place through the lungs and exchange takes place between the oxygen which is taken in and carbon dioxide is given out.
Million of alveoli in the lungs work to make it happen. Hence these gases are Carbon dioxide and water.
Learn more about the two gases exchanged between the body and the air during respiration here:
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He stoma is the innermost compartment of a cytoplasm . Here, the Choose... occur(s), breaking down Choose... acid into carbon dioxide in a series of reactions.
Answer:
The matrix is the innermost compartment of a mitochondrion. Here, the Kreb's cycle occur breaking down pyruvic acid into carbon dioxide in a series of reactions.
Note: The question is incomplete. The complete question is given below:
The (matrix / stoma / cytoplasm / nucleolus) is the innermost compartment of a (cytoplasm / cell wall / mitochondrion / nucleus). Here, (glycolysis / the Krebs cycle / fermentation / NAD+) occur(s), breaking down (citric / pyruvic / lactic / nitric) acid into carbon dioxide in a series of reactions.
Explanation:
The mitochondria is a double-membrane bound cell organelle found in the cytoplasm within which the biochemical processes of cellular respiration and energy production occur. Cristae are folds of inner membrane that project into the matrix. The matrix is a gel-like material in the innermost compartment of a mitochondria and is the site for the Kreb's or Citric cycle.
The Kreb's cycle is the third stage of cellular respiration (the first is glycolysis in which a molecule of glucose is broken down into two molecules of pyruvic acid; the second is the preparatory stage which oxidizes two molecules of pyruvic acid to two molecules of acetyl-CoA). In this cycle, the two molecules of acetyl-CoA produced in the preparatory stage is broken down into carbon dioxide in a series of eight energy-extracting reactions producing 2 ATP, 6 NADH, 2 FADH2 and releasing 4 CO2.
A biologist collected 1 gallon of pond water and finds 37 paramecium within it. If the pond were 25,000 gallons, how many paramecium are likely to present in the entire pond
Answer:
Amount of paramecium in 25,000 gallon water = 925,000 (Approx)
Explanation:
Given:
Amount of paramecium in 1 gallon water = 37
Find:
Amount of paramecium in 25,000 gallon water
Computation:
Amount of paramecium in 25,000 gallon water = 25,000 x 37
Amount of paramecium in 25,000 gallon water = 925,000 (Approx)
Which of the following is the branch of science that studies organisms such as bacteria and yeasts?
A. Physiology
B. Microbiology
C. Anatomy
D. Histology
Answer:
B- microbioligy
Explanation:
B is your answer you looking for my guy
How do organisms (living things) differ from matter (non-living things)
Answer:
All living things breathe, eat, grow, move, reproduce and have senses. Non-living things do not eat, grow, breathe, move and reproduce. They do not have senses.
Explanation:
i hope i helped
An ecosystem has 150 organisms of 15 different species. What is the biodiversity index of this ecosystem?
Answer:
0.1
Explanation:
To calculate this, scientists use a formula called the biodiversity index in order to describe how much are the species of a given area diverse. It is calculated by taking the number of species in the area and divided by the total number of individuals in that area. This gives us the biodiversity index.
In this example, there are 15 species in an area and we divide that by 150 organisms to get a 0.1 biodiversity index.
Biodiversity Index is used to measure the biodiversity of an ecosystem. The biodiversity index of the given ecosystem is 0.1.
Biodiversity Index:
It is a measure of species diversity in the particular area. This can be calculated by sing the formula,
[tex]\bold{I_b_d = \frac{nS}{nO} }[/tex]
Where,
nS - number of species = 15
nO - total number of organisms = 150
Put the values in the formula,
[tex]\bold{I_b_d = \frac{15}{150} }\\\\\bold{I_b_d =0.1}[/tex]
Therefore, the biodiversity index of the given ecosystem is 0.1.
To know more about biodiversity index, refer to the link:
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Ictice
Bay
What is a hypothesis?
A. information collected from experiments
B. a widely accepted idea
C.
a suggested answer to a problem
D.
a conclusion made based on facts
Answer:
♡ madeline here ♡
hi luv! its c ☆
have a great day!
- madeline/madi
✧･ﾟ: *✧･ﾟ:･ﾟ✧*:･ﾟ✧･ﾟ
Explanation:
Which statement is true? Prokaryotic cells have multiple membranes. Eukaryotic cells have multiple membranes. Prokaryotic cells do not have a membrane. Eukaryotic cells have one membrane.
Answer:
eukaryotic cells have one membrane
What part of the body system is that
Answer:
Urinary System
Explanation:
The bladder and kidneys are there
The question is marked with red color. Please help me
Answer:
Deserts
Explanation:
Short for desertification
what do eukaryotic cells have that prokaryotic cells do not
Answer:
good good good
Explanation:
good good good good good
Which is a characteristic of any sandal
open toes
brown color
laces
leather
Can you please hurry I am running out of time
Answer:
A. Open Toes
Explanation:
Sandals are an open type of footwear.
Answer:
a
Explanation:
2
A particle can infect humans and make them sick. It attaches to a host cell and injects its RNA, which the host uses to make proteins for the
particle. This particle cannot reproduce on its own and can only copy itself by using the machinery of the host.
Which explains whether the particle described is a virus or a cell?
OA. The particle is a cell because it has genetic information and attaches to other cells.
OB.
The particle is a virus because it makes proteins but cannot reproduce by itself.
OC. The particle is a cell because it does not make proteins and cannot reproduce by itself,
OD The particle is a virus because it has genetic information and can infect humans.
Reset
Next
INTL
Viruses are composed of genetic material protected by proteinic capsides. Option B is correct. The particle is a virus because it makes proteins but cannot reproduce by itself.
What are viruses?
Viruses are particles that carry genetic information as DNA or RNA inside a proteic protector layer known as the capsid.
The virus structure is always genetic material (DNI or RNA) surrounded or protected by proteins.
Viruses infect host cells by recognizing specific receptors in the cell membrane to which they attach. They use different mechanisms to penetrate the cells and release their genetic material inside their host.
Replication and synthesis of the viral components occur using the host cell metabolism.
Finally, the newly synthesized viral components assemble, and many viral copies are formed and released.
In the exposed example,
The particle infects human cells (host cells)Injects RNA (genetic material)Uses the machinery of the host cell to produce new proteins.According to this information and the framework, we can assume we are referring to viruses, not cells because cells have their own machinery to reproduce. So options A and C are eliminated.
We can also discard option D because this description can also be used to describe bacteria cells, for instance, that have genetic information and can infect humans.
So option B is correct. The particle carries the genetic information to produce new proteins but can not reproduce by itself. It needs the host cell machinery to do it.
You can learn more about viruses at
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