Answer:
B. Containing cells
Explanation:
This question is very very urgent:-
a. What is the reason for different types of silk?
b. Why are eggs laid by female silk moths warmed?
c. After how many days, caterpillars stop eating and start to spin cocoons?
Explanation:
i think b. is the warmer the weather, the quicker the Silkworm will complete its life-cycle,
La estructura de los epopeyas
Answer:
. Valora la importancia de los experimentos científicos en torno a la generación espon- tánea.
Explanat. Valora la importancia de los experimentos científicos en torno a la generación espon- tánea.
ion:
cómo hacemos el arte se convierta en un dinamizador de una milpa
Answer:
hi
Explanation:
hi
In the scientific method, scientific theories.must be tested and verified by observations.b.must be verified by the leading authorities in the field. c.must be consistent with previous, universally accepted scientific concepts.d. must be consistent with the fact that the ocean is of great age. e. are accepted as absolute fact until proven otherwise.
Answer:
must be tested and verified by observations.
Explanation:
Science can be defined as a branch of intellectual and practical study which systematically observe a body of fact in relation to the structure and behavior of non-living and living organisms (animals, plants and humans) in the natural world through experiments.
A scientific method can be defined as a research method that typically involves the use of experimental and mathematical techniques which comprises of a series of steps such as systematic observation, measurement, and analysis to formulate, test and modify a hypothesis.
In the scientific method, scientific theories must be tested and verified by observations.
This ultimately implies that, all scientific theories must be testable, consistently verifiable and supported by observations or experiments.
An experiment can be defined as an investigation which typically involves the process of manipulating an independent variable (the cause) in order to be able to determine or measure the dependent variable (the effect).
This ultimately implies that, an experiment can be used by scientists to show or demonstrate how a condition causes or gives rise to another i.e cause and effect, influence, behavior, etc in a sample.
................... controls metabolic activity of a cell?
enzymes control metabolic activity of cells
Energy is released when:
A. Chemical bonds break
B. Chemical bonds are made
C. Both A and B are true
D. Neither A nor B are true
A sample of iron has the same dimensions of 2 cm x 3 cm x 2 cm. If the mass of this rectangular-shaped object is 94 g, what is the density of iron?
Answer: 77.88889
Explanation:
(1) what is active transpot and activesap (2)what happens if transportation does not occur answer me i will mark u as brainlist
1.active transport. The movement of ions or molecules across a cell membrane in the direction opposite that of diffusion, that is, from an area of lower concentration to one of higher concentration. Active transport requires the assistance of a type of protein called a carrier protein, using energy supplied by ATP. SAP Activate is a content-rich and agile methodology for implementation and/or upgrade of SAP solutions across industries and customer environments. It sets out an innovative adoption framework that expedites SAP S/4HANA implementations.
2.If the process of transpiration stops in plants, then the excess water inside the plants will not be able to come out. Hence, the plants will burst due to the presence of excess of water inside them.
Which of the following statements is false? Question 1 options: Bcl2 blocks aggregation of BH123 on the outer mitochondrial membrane thus inhibiting apoptosis. BH123 proteins, like Bax and Bak, are death-promoting members of the Bcl2 family that induce the release of cytochrome c from mitochondria into the cytosol. Bcl2 proteins are part of the extrinsic apoptosis pathway. Some Bcl2 family members promote apoptosis, whereas others inhibit apoptosis.
Answer:
The correct answer is - Bcl2 proteins are part of the extrinsic apoptosis pathway.
Explanation:
The Bcl-2 family group of proteins that are known to either promote or inhibit the process of apoptosis by regulating the mitochondrial membrane potential. Bax and Bak are Bcl-2 proteins, act as pro-apoptotic proteins which oligomerize to result in forming pores in the membrane of the mitochondria.
These pores lead to the release of cytochrome c to the cytoplasm. Bcl-2 protein is an anti-apoptotic protein that inhibits the oligomerization of Bak and Bax.
The DNA molecule could be compared
Answer:
The correct answer is -To a ladder.
Explanation:
Most commonly DNA molecule is considered and compared to a twisted ladder as the structure of DNA can be compared to a ladder. It makes the side of the ladder by an arrangement of alternating chemical phosphate and sugar backbone, making the 'sides' of the ladder.
Nitrogenous bases that are purine and pyrimidine make up the 'rungs' or steps of the ladder and also bind with hydrogen bonds with one other in the rug as two bases make a single rug, and are attached to the backbone where the deoxyribose (sugar) molecules are located.
Check all the statements that are true for BOTH T cells and B cells.
1. The cells have a specific protein receptor in their membranes.
2. uses cells to defend against pathogens
3. regulates the production of plasma cells
4. when activated, make millions of clones of themselves
5. uses antibodies to defend against pathogens
6. can bind with free-floating antigens
7. form memory cells to provide protection against future attacks by the same
pathogen
8. responsible for regulating the immune system
9. produced in bone marrow
10. mature in the thymus
Answer:
я не знаю ответа извините
Explanation:
Beth broke her ankle bone. The doctor
gives her a
brochure on foods she can eat to help restore the
health of her bones. Which
strengthen the bone
element will help Beth carbon phosphorus or nitrogen
Answer:
phosphorus
Explanation:
have a nice day xd :)
plz help quickly:
The diagram below shows the ways cells can release energy from food depending on whether oxygen is present.
Respond to the following:
What is the name for the top process (Hint: what is the term for a process that does need oxygen present to occur) ?
What is the name for the bottom process (Hint: what is the term for a process that does not need oxygen present to occur)?
How many ATP are produced at the end of the top process shown?
How many ATP are produced at the end of the bottom process shown?
Answer:
1. Aerobic respiration
2. Anaerobic respiration
3. 36 ATPs
4. 2 ATPs
Explanation:
According to the diagram attached to this question, the process of cellular respiration is described. Based on whether OXYGEN is present or not, cellular respiration can be divided into two:
- Aerobic respiration is the respiration that occurs in the presence of oxygen. As shown in the top process, aerobic respiration starts with glycolysis → krebs cycle → Electron transport chain (ETC). At the end of these three steps, 36 ATP molecules results.
- Anaerobic respiration is the respiration that occurs in the absence of oxygen. As described in the bottom process of the diagram, anaerobic respiration starts with glycolysis and enters alcoholic or lactic acid fermentation depending on which product is formed (alcohol or lactic acid). At the end of the process, only 2 ATP molecules is synthesized.
Lactic acid fermentation takes place after glycolysis in the absence of:
A. ATP
B. Carbon dioxide
C. Glucose
D. Oxygen
Answer:
Oxygen
Explanation:
Fermentation take place when there is a lack of oxygen in a cell. Without oxygen, the only process that can create ATP from glucose is glycolysis.
Answer:
its oxygen.
Explanation:
Fermentation take place when there is a lack of oxygen in a cell. Without oxygen, the only process that can create ATP from glucose is glycolysis.pls mark me as branliestA que tipo de comunicacion celular se refiere, los factores de crecimiento son señales que secretan las celulas para estimular su propio crecimiento y proliferacion
Answer: Comunicación intracrina
Explanation:
La comunicación celular consta de un proceso en el que las células se comunican entre ellas y con el medio externo mediante señales físicas o químicas. Entonces, dichas células reciben, procesan y transmiten señales no solo con su entorno sino también consigo mismas. Las señales que se originan en el exterior de una célula que son agentes físicos pueden ser, por ejemplo, la presión mecánica, la luz, la temperatura, el voltaje, etc. Las señales químicas pueden ser moléculas como péptidos, gases, etc. Dichas moléculas de señalización pueden sintetizarse a partir de diversas vías biosintéticas y liberarse a través de transportes pasivos o activos. Estas señales van a ser detectadas por receptores, los cuales son proteínas en la superficie celular o en el interior de la célula que detectan las señales y producen una respuesta. Los receptores de la superficie celular suelen unirse a señales o ligandos extracelulares, lo que provoca un cambio conformacional en el receptor que le lleva a iniciar una actividad enzimática o a abrir o cerrar la actividad de un canal iónico para permitir o bloquear el transporte. Por otro lado, los receptores intracelulares, como los receptores nucleares, tienen un mecanismo diferente, como el cambio de sus propiedades de unión al ADN y la localización celular en el núcleo, regulando directamente la transcripción de genes y por lo tanto la regulando la expresión génica.
La señalización celular puede producirse a corta o larga distancia, por lo que puede clasificarse como autocrina, yuxtacrina, intracrina, paracrina o endocrina. La señalización autocrina implica que una célula secrete una hormona o un mensajero químico que se une a los receptores autocrinos de esa misma célula, lo que provoca cambios en la propia célula. En la señalización paracrina, una célula produce una señal para inducir cambios en las células cercanas, alterando el comportamiento de éstas. Las moléculas de señalización conocidas como factores paracrinos se difunden a una distancia relativamente corta (acción local), a diferencia de la señalización celular por factores endocrinos, donde las hormonas recorren distancias más largas a lo largo del cuerpo y a través del sistema circulatorio. La señalización yuxtácrina es un tipo de señalización entre células o entre una célula y la matriz extracelular que requiere un contacto estrecho, entonces se diferencia de la comunicación autócrina y endócrina en que estas últimas no requieren contacto. Y por último, la señalización intrácrina es un mecanismo de control del crecimiento que implica la acción directa de factores de crecimiento dentro de la célula. Algunos factores de crecimiento producen complejos factor/receptor en la superficie celular y son rápidamente internalizados por la célula en cuestión y translocados al núcleo sin degradación.
Un factor de crecimiento es una sustancia natural capaz de estimular la proliferación celular, la curación de heridas y, en ocasiones, la diferenciación celular. Por lo tanto, actúan como moléculas de señalización entre las células y pueden actuar sobre las mismas células que las producen y liberan. Entonces, si estos factores de crecimiento actúan sobre las mismas células que los secretan, se habla de un comunicación intrácrina.
Which is NOT a characteristic of all vertebrates?
a backbone
an exoskeleton
paired appendages
a well-developed brain protected by a skull
the small pine forest in which a rabbit lives is the rabbit's ______.
Answer:
Habitat
Explanation:
Which of the following statements is FALSE for photosynthesis?
Select one:
a. Carbon dioxide is produced in the light independent reactions for use in cellular respiration.
b. Light energy from the sun is absorbed by pigments in the leaf and used to reduce carbon atoms in the production of glucose.
c. Energy, in the form of ATP, is used in the light independent reactions to create glucose.
d. Light energy from the sun is absorbed by pigments in the leaf and used to form glucose to be used by organisms in cellular respiration.
The false statement about photosynthesis is Light energy from the sun is absorbed by pigments in the leaf and used to form glucose to be used by organisms in cellular respiration. The correct option is d.
What is photosynthesis?Photosynthesis is a chemical process by which plants make their food. The process includes sunlight which is trapped by chlorophyll, water, and carbon dioxide which is converted into glucose.
The glucose produced by plants is used by them to carry out their process of theirs, not the organisms in cellular respiration.
Thus, the correct option is d. Light energy from the sun is absorbed by pigments in the leaf and used to create glucose to be used by organisms in cellular respiration.
Learn more about photosynthesis, here:
https://brainly.com/question/13261372
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The genetic material of a cell is organized in the following manner
Answer:
GENES?
Explanation:
what is the functions of genotypes???
Answer:
The genotype of an organism is its complete set of genetic material, two alleles are inherited for a particular gene by your parents sex gametes (sperm + egg). the genotype determines the persons phenotype eg. polydactyly, your eye colour etc, with a recessive or dominant allele. this can be determined through punnet squares too.
give your pinterest I'd pls
Answer:
okis
Explanation:
My pinterest Alli but with a face like this (Alli:P)
When should a line graph be used?
A. When there is no independent variable
B.when the independent variable is composed of categories and does not show a relationship.
C. When the independent variable is continuous and shows a casual link to the dependent variable.
D. When the independent variable is continuous and does not show a relationship to the dependent variable?
Answer: Line graphs are used to track changes over short and long periods of time. When smaller changes exist, line graphs are better to use than bar graphs. Line graphs can also be used to compare changes over the same period of time for more than one group.
Explanation:
5. The atmosphere of early Earth is unlike today's atmosphere.
A. When did oxygen first appear in Earth's early atmosphere? (3 points)
B. What factor caused the appearance of oxygen? (3 points)
C. What is one form of evidence used to support this theory? (4 points)
Answer:
it's 5
Explanation:
today's atmosphere we enjoy today is radically different from the atmosphere that formed with the earth billions of years ago.
Mention any 2 uses of algae.
Which of the following is an example of a beneficial mutation?
When an organism's lifespan becomes shorter
when an organism's body becomes deformed
When an organism becomes unable to reproduce
When an organism develops immunity to a disease
Answer:
When an organism develops immunity to a disease
Explanation:
when organisms develop immunity than the organism become more comfartable to the enviroment
In light reactions of photosynthesis why photosystem 2 occurs before photosystem 1
Answer:
because it is his choice
I hope you understand
which animal can laugh like humans?
Answer:
Chimpanzee laughing sounds a lot like human laughter acoustically
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Our sun is classified as a: A. Main-sequence star B. Red super giant C. White dwarf D. Spiral galaxy
Answer:
Main Sequence Star
Explanation:
Answer:
The answer is A yw
Explanation:
What are the two reactions in the process of photosynthesis?
A
intermediate and beginning
B
light reaction and the Calvin cycle
C
Krebs cycle and glycolysis
D
respiration and exhalation
Answer:
B
Explanation:
light reactions take place in the thylakoids and Calvin cycle takes place in the stroma.
At a pH below 3.5, fats and hypertonicity in the duodenum decrease gastric motility by what mechanisms
Answer:
glucagon
Explanation:
