Answer:
2
Explanation:
There are two kinds of photosystems: photosystem I (PSI) and photosystem II (PSII) (Fig. 3.3).
Answer:
Two
Explanation:
How long does it take the Earth to move from Point A to Point C?
Answer:
Explanation:
As you know that the earth has two types of motions,
namely rotation and revolution. Rotation is the
movement of the earth on its axis. The movement of
the earth around the sun in a fixed path or orbit is
called Revolution.
The axis of the earth which is an imaginary line,
makes an angle of 66½° with its orbital plane. The
plane formed by the orbit is known as the orbital plane.
The earth receives light from the sun. Due to the
spherical shape of the earth, only half of it gets light
from the sun at a time (Figure 3.2). The portion facing
the sun experiences day while the other half away from
the sun experiences night. The circle that divides the
day from night on the globe is called the circle of
illumination. This circle does not coincide with the
axis as you see in the Figure 3.2. The earth takes about
24 hours to complete one rotation around its axis.
The period of rotation is known as the earthday. This is
the daily motion of the earth.
2021–22
MOTIONS OF THE EARTH 19
Figure 3.3 : Revolution of the Earth and Seasons
What would happen if the earth did not rotate? The
portion of the earth facing the sun would always
experience day, thus bringing continuous warmth to
the region. The other half would remain in darkness
and be freezing cold all the time. Life would not have
been possible in such extreme conditions.
Which is the smallest unit of life?
Organs
Molecules
Cells
Atoms
Answer:
Cell
Explanation:
Cell is defined as the basic,structural, functional,smallest and simplest unit of life. While cell us the smallest unit of life is because if anything happens to your cell,expecially the ones the ones that controls your heart,you may die. Which is why cell us the smallest unit if life
Which statement below accurately describes how sweating helps maintain homeostasis?
A. Skin cells absorb water into the body, which absorbs heat and cools the cells
B. Water on the skin evaporates into the air, pulling heat from the body
C. Water condenses on the skin and absorbs heat from the body
D. Water on the skin evaporates into the air, pulling heat out of the air around the body
Answer:
A. Skin cells absorb water into the body, which absorbs heat and cools the cells. Please mark me brainliest
Explanation:
Answer:
B
Explanation:
Water on the skin evaporates into the air, pulling heat from the body, accurately describes how sweating helps maintain hemostasis.
Help please……………………….
heterozygous.
yan po ang sagot
if a person wanted to learn more about the genetic material of plant and animal cells, where would they look?
Answer:
The cell organellles are visible in the electron microscope, but it is not possible to study the living cells in electron microscope. For study of genetic materials i.e., DNAs and RNAs is poosible through the help of electron microscope. (ANSWER)
Explanation:
Lactic acid fermentation can be modeled by which equation?
O Lactic acid + NADH → Pyruvic acid NADH
O Pyruvic acid + NAD+ → Lactic acid + NADH
O Lactic acid + NADH → Pyruvic acid + NAD+
O Pyruvic acid + NADH → Lactic acid + NAD+
Lactic acid fermentation can be modeled by the following equation: Pyruvic acid + NADH → Lactic acid + NAD+
LACTIC ACID FERMENTATION:
Fermentation is a process undergone by some anaerobic organisms. Ideally, the process of cellular respiration proceeds as follows in the presence of oxygen: Glycolysis- Kreb cycle - ETC. However, in the absence of oxygen (anaerobic condition), the product of glycolysis which is pyruvic acid combines with an electron carrier (NADH) to give rise to lactic acid and NAD+. This means that pyruvic acid is reduced while NADH is oxidized as modelled in the following equation:Pyruvic acid + NADH → Lactic acid + NAD+Learn more at: https://brainly.com/question/11502989?referrer=searchResults
Answer to Question 1:
Well, given the choices to the question above 'Lactic acid fermentation can be modeled by which equation?', I would say that the best choice would be 'Pyruvic acid + NADH → Lactic acid + NAD+', or in other words, Option D.
Explanation for Question 1:
For a further explanation expanding more on the first question and showing why, the user above's answer is super helpful.
Answer to Question 2:
For the additional question asked 'In the Krebs cycle, how is citric acid formed?', I didn't see the options, however I believe they are:
O Carbon dioxide bonds with a chain of coenzyme A.
O Pyruvic acid molecules are broken down by an acetyl group.
O Acetyl-CoA joins with a large molecule called ozaloacetic acid.
O Enzymes combine hydrogen ions, oxygen, and electrons.
^ This being said, I would say your best choice would be Option C.
Explanation for Question 2:
The Krebs cycle begins when acetyl-CoA combines with a four-carbon molecule called OAA, aka oxaloacetate. This begins to produce citric acid, in which has six carbon-atoms. This is why the Krebs cycle is also referred to as 'the citric acid cycle.'
~Thank you for asking your question here on Brainly. Hope we helped :D Happy holidays!
which scientist stated that all animals are made of cells?
Answer:
Theodor Schwann
Explanation:
Brainliest would be appreciated!!
What is meant by a phenotype ratio in a Punnett square?(1 point)
the number of genes that are possible in offspring
the fraction of possible offspring that contain a certain allele in their genes
the fraction of possible offspring that can be observed to have a trait
the number of alleles in possible offspring
✌️
Answer:
The fraction of possible offspring that can be observed to have a trait.
Explanation:
Just took the test. So yea hope it helps
The observable trait appearing probability for cross-breeding is the phenotype ratio in a Punnett square.
What is cross-breeding?The act of creating offspring, particularly through the mating of two purebred individuals who are from different breeds, variations, or even species, is known as crossbreeding. The practice is specifically referred to as designer crossbreeding because it is typically done with the intention of developing offspring that would acquire desired qualities of the parent lineages. Breeders frequently engage in this approach, particularly when the intended qualities will be advantageous to the progeny, such as when its biological fitness is improved.Hybridization and crossbreeding are sometimes used interchangeably. But specifically, hybridization is the act of creating hybrid offspring by mating two parents from different species.To learn more about cross-breeding, refer to
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a process common to all living organisms, whether aerobic or anaerobic, is
Answer:
The process of respiration is similar in all organisms, whether plants or animals – carbon dioxide is given out and oxygen is used up, and a lot of energy is produced. In plants, specific organs for breathing are absent. The exchange of gases, however, occurs by the process of diffusion.
Explanation:
hope it helps u..Mark me the Brainliest pls
A process common to all living organisms, whether aerobic or anaerobic, is glycolysis as part of the metabolism of all living organisms.
Glycolysis is the universally distributed metabolic pathway in all organisms and cells, by means of which a glucose molecule is degraded to two pyruvate molecules, in addition to producing energy in the form of ATP and NADH.
Specifically, ATP is the only high-energy phosphate that is formed primarily from the energy gain of the cell through oxidative processes (aerobic) or glycolysis (aerobic or anaerobic).
Glycolytic enzymes are located in the cytoplasm, near the contractile filaments, therefore, the ATP produced by the glycolytic pathway is formed near the place where it is used.
Phases:
Preparatory: Four reactions: two are phosphorylation and consume 2 ATP per glucose molecule. The breakdown of hexose produces 2 trioses, which end in 2 molecules of glyceraldehyde-3-P. .Oxidation of glyceraldehyde-3-phosphate (x 2) to pyruvate (x 2) and coupled formation of ATP in 2 of the reactions, in total 4 ATP and 2 NADH are formed.In aerobics glycolysis consists of extracting energy from organic molecules from the oxidation of carbon by oxygen.
In anaerobic glycolysis the element used to achieve oxidation is not oxygen but sulfate or nitrate.
Therefore, we can conclude that a process common to all living organisms, whether aerobic or anaerobic, is glycolysis as part of the metabolism of all living organisms.
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1
are organisms capable of transforming one
form of energy (light energy or chemical energy) into the food
they need to do work.
Check it
2 SCRATCHPAD
Improve thls question
Answer: Yes, organisms are able to transform both light energy and chemical energy into food.
how did new evidence presented by other scientist's claims change the modern cell theroy
Explanation:
Hope this helps. Goodluck.
The pancreas is the organ in the body that...
Answer:
i believe the answer is B.
Explanation:
did a little research...tell me if wrong
We talked a lot about how life arises from non-living molecules through certain “emergent
properties”. What is one theory that scientists have put forth to explain how the first non-living
molecules may have started to resemble life as we know it (multiplying, carrying out
biochemistry), and what evidence supports their claim?
Answer:I think Dwarnism/NeoDwanisim
Explanation:
HELP
1. A baby’s mass was measured when the baby was born and then every month for 6 months. At 3 months of age, the baby was sick, so the baby’s mass was not measured. Create a graph by using the data table above. Use the graph to find the likely mass of the baby at 3 months.
2. Does your graph show a linear or a nonlinear relationship? Explain your answer.
Answer:
1. 5.51 kg
2. A linear relationship, because the mass-time graph have the shape of a line
Explanation:
1. The slope of the graph is 0.77, so you have to multiply it by 3 and add the initial mass of the baby:
0.77×3 + 3.2 = 5.51 kg
This picture shows part of a mangrove swamp in the Florida Everglades. Mangroves are trees that can live in fresh water or salt water. This means that the Everglades is most likely
Answer:
The answer is B (An estuary)
Explanation
The picture depicts a mangrove swamp within Florida Everglades. This means that the Everglades is most likely Estuary due to the presence of mangrove trees thriving in both freshwater and saltwater environments. The correct option is (B).
The picture shows a mangrove swamp in a section of the Florida Everglades. Mangroves are unusual trees that have the amazing capacity to thrive in both freshwater and saltwater environments. Estuaries, where rivers meet the sea and create a setting with variable salt levels, are notable for this adaptability.
The Florida Everglades is a perfect example of an estuary environment since the coexistence of mangroves in this ecosystem implies the presence of brackish water, which is a mixture of freshwater and seawater. Estuaries are key for maintaining a variety of wildlife and offering crucial ecological functions.
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The given question is incomplete, complete question is- "This means that the Everglades is most likely
(A) a lake.
(B) an estuary.
(C) a river.
(D) deep ocean"
What are some control variables
Duration of the experiment.
Size and composition of containers.
Temperature.
Humidity.
Sample volume.
Pressure.
Experimental technique.
Chemical purity or manufacturer.
how do cells get the correct number of chromosomes?
Answer:
"During cell division, a mother cell divides into two daughter cells, and during this process, the DNA in the mother cell, wrapped up in the form of chromosomes, is divided into two equal sets. ... This finding gives us a glimpse of an important step in the process of cell division."
Explanation:
"Good science" is based on evidence, and results are able to be repeated. *
True
False
Answer:true
Explanation:
Do hippos use Testicles in their everyday life? If so, explain with 2-3 sentences, if not, do the same.
Continue || Save And Exit || Submit
Answer:
No
Explanation:
Hippos don't use their testicles in their everyday life.Because unlike our humans hippos don't have their testicles outside of body.Instead they have it inside the body in lower abdomen.What is the purpose of a plant cell wall?
Answer:
provides tensile strength and protection against mechanical and osmotic stress.
define dark reaction
Answer:
any of a series of chemical reactions in photosynthesis not requiring the presence of light and involving the reduction of carbon dioxide to form carbohydrate especially the Calvin cycle.
Explanation:
Which of the following correctly orders events during mitosis?
The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes.
The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes.
The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.
The nuclear membrane dissolves. Microtubules organize the chromosomes. The mitotic spindle attaches to chromosomes.
Microtubules organize the chromosomes. The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes.
Microtubules organize the chromosomes. The nuclear membrane dissolves. The mitotic spindle attaches to chromosomes.
The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves.
The answer option which correctly orders events during mitosis is:
D. The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves.
Mitosis can be defined as a type of cell division or duplication through which a single parent cell produces two (2) genetically identical daughter cells.
During mitotic division, the two (2) genetically identical daughter cells produced by a single parent cell usually have the same number of chromosomes as their parent cell; this process is referred to as duplication division.
Furthermore, the following events take place during mitotic division in living organisms:
The mitotic spindle (spindle fibers) of microtubules attaches to chromosomes. These microtubules organize the chromosomes. The nuclear membrane dissolves.Read more: https://brainly.com/question/12103012
Answer:
The last one
Explanation:
The mitotic spindle attaches to chromosomes. Microtubules organize the chromosomes. The nuclear membrane dissolves.
What happens to a population when emigration decreases?
Answer:
Emigration decreases the population. the answer is B
Explanation:
If the immigration decreases they have no food they they will die out.
PLEASE HELP I NEED ANSWER RIGHT NOW ASAP. 100 POINTS TO WHOEVER ANSWERS FIRST AND ALSO BRAINLEST!!!!!!!!!!!!! :)
Look at the following graph, which shows the average number of offspring had by mice per year with certain traits. Based on the data, which traits are advantageous to the species?
Explanation:
The traits more sensitive noses is advantageous to the species
Which is NOT an example of proper gym etiquette?
options:
A.
Wipe down machines after use.
B.
Demonstrate proper body mechanics.
C.
Use equipment quickly if people are waiting.
D.
Limit time on the treadmill during busy times.
no links
Using equipment quickly when people are waiting is actually an example of poor gym etiquette. Therefore option C is correct.
Sharing the equipment and being mindful of other gym patrons are key. When others are waiting and equipment is being used inappropriately, it can be detrimental to everyone's experience.
It's crucial to be aware of when the gym is busy and to give others a chance to use the equipment.
For the purpose of fostering a welcoming and inclusive environment, good gym etiquette entails showing consideration for and respect for other participants.
Therefore, The correct option is B.
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Which is evidence for the existence of dark energy?
Black holes that are expanding at a constant rate.
Pulsars that seem to be moving closer at an accelerating rate.
Supernovae that are moving away at an accelerating rate.
Galaxies that are rotating at a constant rate.
Answer:Supernovae that are moving away at an accelerating rate.
Explanation:
took test
Answer:
Supernovae that are moving away at an accelerating rate.
Explanation
i took the quick check
Astrologers relate the location of the stars and planets to events in human lives. Many years ago,people classified astrology as a science. Why do modern scientists consider astrology to be a pseudoscience?
Answer:
C.
Explanation:
yes, astrology doesn't offer conclusive proof of its claims. astrologers predict the future with the location of planets and stars but they don't have a concrete theory that the location of a particular planet has an impact on human life. they believe in something called universal energy.
But I believe in my god.
Select the correct answer.
Which is an advantage of sexual reproduction over asexual reproduction?
A. increased number of organisms and decreased genetic variationdecreased genetic variation
B. doesn’t require an organism to find a mate
C. increased genetic variation
D. decreased genetic variation and decreased number of organism
Answer:
C
Explanation:
the others look like the advantage of asexual reproduction
in glycolysis, for each molecule of glucose oxidized to pyruvate, ________.
Answer:
two molecules of ATP are used, and four molecules of ATP are produced
Explanation:
Hope this helps :)
Чи може містити рослинна клітина елемент або речовину, яких немає в
навколишньому середовищі? наведіть приклади
Answer:
the first great German expressionist film was
