Answer:
D. the size of the stomata
Explanation:
Guard cells regulate the opening of stomata by integrating different signals, both endogenous and exogenous (environmental). The ability of plants to control stomatal opening allows them to respond quickly to changes in the environment.
how do i answer this question
1 Point
Which of the following terms means "a very large molecule made up of many
smaller molecules joined together"?
A. Macromolecule
B. Lipid
Ο Ο Ο
C. Carbohydrate
O D. Nucleic acid
SUBMIT
Answer:
A. Macromolecule
Explanation:
A macromolecule is commonly formed through polymerization which means the production of polymers. The polymers are usually formed when different monomers add up to form a bigger substance(polymer). Polymers are examples of macromolecules because they contain two or more monomers which has a lot of compounds embedded in them.
Macromolecules are very large molecule made up of many smaller molecules joined together and the other options such as carbohydrates, Lipid and nucleic are examples of macromolecules formed under suitable conditions.
Living organisms respond to changes in environmental conditions such as temperature. Which series lists the correct
order in which the body would respond to such a change?
O tissue, cell, organ, organ system, organism
O tissue, cell, organ system, organ, organism
O cell, tissue, organ, organ system, organism
O cell, tissue, organ system, organ, organism
cell , tissue , organ, organ system, organism
Beginning with NADH, track the flow of electrons through the ETC. A. Complex I, Complex II, Complex III, Complex IV B. Complex II, Ubiquinone, Complex III, Cytochrome C, Complex IV. C. Complex III, Ubiquinone, Complex II, Cytochrome C, Complex IV, Oxygen D. Complex I, Ubiquinone, Complex III, Cytochrome C, Complex IV, Oxygen.
Answer:
D. Complex I, Ubiquinone, Complex III, Cytochrome C, Complex IV, Oxygen.
Explanation:
The track the flow of electrons through the ETC.
D. Complex I, Ubiquinone, Complex III, Cytochrome C, Complex IV, Oxygen.
Flow of electrons in ETC:In the mitochondrial ETC, electrons flow when the reduced electron (NADH, FADH₂) are oxidized. In plants and other photosynthetic organisms, an ETC serves to oxidize NADPH. They travel down the electron transport chain, releasing the electrons that they once had. The end result is loads of energy, approximately 34 ATP (energy molecule).
Thus, the track of flow will be: Complex I, Ubiquinone, Complex III, Cytochrome C, Complex IV, Oxygen
Find more information about Electron transport chain here:
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_______on the blood determine a person’s blood type. _______in the blood attack foreign blood not compatible with the antigens on the blood.
Answer:
the first one is Antigens and the second one is Antibodies
Explanation:
Antigen is usually present on the blood that determine the person’s blood type. While antibodies in the blood attack foreign blood not compatible with the antigens on the blood.
What are antigens?Blood group antigens seem to be either sugars or proteins that bind to various components of the red blood cell membrane. The antigens of the ABO blood group, for example, are sugars.
Whereas antibodies are present in the blood that determines certain antigens present in the blood that are non compatible.
Thus, the answer for blank 1 is antigen, and for blank 2 is antibody.
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Which of the following statements is true?
A cell with the homologous chromosomes undergoes meiosis, and gametes are produced. Is it possible for a chromosome of a gamete to
contain the alleles for gray body and brown eyes
Answer:
No
Explanation: The chromosomes are always inherited as complete unites
Hope this helps
Which two characteristics describe all animals? multicellular and symmetrical multicellular and asymmetrical heterotrophic and multicellular heterotrophic and unicellular
Answer:
heterotrophic and multicellular
Explanation:
All animals are heterotrophic and multicellular. Heterotrophic means that the animals are unable to manufacture their own food. The animals are said to be heterotrophic because unlike plants, they cannot manufacture their own food. They depend on plants and other sources to derive nutrition and energy. Multicellular means made up of many cells. Animals are said to be multicellular because they are made up of different cells.
Answer:
All animals are heterotrophic and multicellular.
Explanation:
All animals are multicellular, they're not just made of one cell.
All animals are heterotrophic, they cannot make their own food like plants so they must rely on eating other organisms for food.
Also, the other answers don't fit.
Which sentence supports the statement that complex, multicellular organisms are made up of specialized cells that each perform different functions for the body?
A.
Human liver cells make proteins that promote homeostasis that neurons do not.
B.
Different species of bacteria have different shapes and structures to their cells.
C.
The DNA in the cell nucleus of chimpanzees and humans are 98% identical.
D.
Prokaryotes do not have nuclei, but they can still carry out the basic functions of life.
Answer:
A
Explanation:
Human liver cell make proteins that promote homeostasis that neurons don't have.
Homeostasis is the regulation of an internal steady environment.
Long question 7 marks.
Describe the process, development of Male gametophyte in flowering plants ?
Explanation:
The male gametophyte containing the generative cell splits into two sperm nuclei, one of which fuses with the egg, while the other degenerates. After fertilization of the egg, the diploid zygote is formed, which divides by mitosis to form the embryo. The scales of the cones are closed during development of the seed
Answer:
Androecium:
Androecium is the third whorl, which is the male reproductive part of the flower.
Unit:
Its units are called stamen.
Stamen:
Each stamen has a thread like filament at the free end of which anther is attached.
Anther:
Anther has pollen sacs in which haploid microspores (pollen grains) are produced through meiosis.
Process:
Each microspore germinates into the male gametophyte generation. During it, the nucleus of microspore undergoes mitosis ans produces two nuclei i.e. a tube nucleus and a generative nucleus. The generative nucleus again undergoes mitosis and produces two sperms. So, a germinated microspore has a tube nucleus and two sperms. All these structures are the male gametophyte generation of the plant.
Based on the genotype of AB blood, what relationship do the A and B genes have?
Answer: In people with type AB blood, both A and B proteins are expressed on the surface of red blood cells equally.
Explanation:
Answer:
They are codominant
Explanation:
The A and B antigens are equally present on the red blood cells, so the relationship of the A and B genes is codominant.
Think of an example of a natural disaster or human-caused environmental
change that could affect the animals.
Answer:
forest fires.
Explanation:
forest fires are human caused and can destruct the habitat and nutrition of the animals severely
Which structures are parts of the central nervous system?
The central nervous system(CNS) is composed of the encephalon and spinal cord.
A female had tubular pregnancy and had to remove her oviducts. Will this affect her in anyway with respect to reproduction ? justify?
Reproduction will be highly affected.
Since there are two oviducts one will be removed as a result of the ectopic pregnancy.
Hence, there will be a defect in the carrying of the ovum from the ovary to the uterus. There will be delivery of the ovum only in the the unaffected oviduct. This can lead to non-fertility.
Ectopic pregnancy is a condition in which there is an implantation of the zygote in a location other than the the uterus.
where is most of the energy produced in cellular respiration
Answer:
Most of the ATP energy obtained from cellular respiration is produced in the third and final stage, the electron transport chain.
Water is essential for the growth of crop plants. But excessive supply of water should be avoided. Give reason.
Answer:
Soil can become waterlogged. The water can cut off the air supply to the roots and to the organisms that live in the soil. If the roots do not receive enough oxygen, the plants will die because they rely on oxygen to complete photosynthesis.
Explanation:
Answer:
We should avoid watering the plants so much
Explanation:
It can lead to the growth of plants and will not grow properly
Chloride ions, Cl-, follow actively transported Na+ ions from the nephrons into the blood. Would you not expect the Cl- concentration to decrease as fluids are extracted along the nephron?
Answer:
Bicarbonate ion, HCO3- (which has a similar charge to chloride ions) also follow sodium ions into the blood. Also, potassium ions, K+ are transported into the nephron so some chloride ions and bicarbonate ions remains in the nephron to balance the charge.
Explanation:
Sodium is the primary positively charged electrolyte in extracellular fluid. Most of the solute reabsorbed in the proximal tubule is in the form of sodium bicarbonate and sodium chloride. Water is also reabsorbed in order to balance osmotic pressure
When sodium ions are reabsorbed into the blood, few of the substances that are transported with Na+ on the membrane facing the lumen of the tubules include Cl- ions, Ca2+ ions, amino acids, and glucose. Sodium is actively exchanged for K+ using ATP on the basal membrane.
In the distal convoluted tubule, K+ and H+ ions are selectively secreted into the filtrate, while Na+, Cl-, and HCO3- ions are reabsorbed to maintain pH and electrolyte balance in the blood.
Some chloride ions remains in the nephron to balance the charge of the secreted K+ ions and also due to the bicarbonate ions that are removed.
The concentration of Chlorine decreases as fluids are extracted along the nephron because it is not soluble in water. With an increase in the fluid extraction along the nephron, there is the reabsorption of more water and since Chlorine cannot be diluted by water, its concentration decreases. With the more reabsorption of water and increase in its concentration as the fluid moves through the nephron, the relative concentration of chlorine reduces.
This gradient is mainly caused by NaCl and urea. NaCl is transported by the ascending limb of Henle's loop which is exchanged with the descending limb of the vasa recta.
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A small lake is filled with fish, turtles, and snakes. The next morning all the fish die but the turtles and snakes are still thriving. How did all the fish die?
Answer:
the snakes and turtles ate the fish
Explanation:
What would you use the Benedict’s test for? A. To identify if a sugar is present. B. To identify if a reducing lipid is present. C. To identify if a lipid is present. D. To identify if a reducing sugar is present.
Answer:
to identify if a reducing sugar is present...not only reducing but also non reducing sugars
Which animals have hair
Answer:
rodents,rabbits and primates have hair
Answer:
Rodents, Primates, and Rabbits
How would the coils in the middle of the diagram
change to show a longitudinal wave with higher
energy?
They would be farther apart.
They would be closer together.
They would be shaped like a hill.
They would be shaped like a valley.
Answer:
The correct answer is - option C.
Explanation:
A longitudinal wave with higher vitality have more noteworthy plentifulness. Abundancy is the separation between the covering and trough of the wave. The crust is the topmost layer of the wave while trough is present at the bottom portion of the wave.
In the event that the separation among crust and trough of the wave is higher so the amplitude is likewise more prominent and we can say that the wave contains a high measure of vitality and the other way around. The state of the structure of the wave simply like a hill.
Thus, the correct answer is - option C.
Answer:
C
Explanation:
edge 2023
I will give brainliest and thanks! Which statement about biomass energy is correct? A. Biomass energy is a nonrenewable resource that makes use of materials from recently living organisms. B. Biomass energy is a nonrenewable resource that involves the use of fossil fuels. C. Biomass energy is a renewable resource that cannot be used to generate electricity. D. Biomass energy is a renewable resource that releases pollutants into the air.
Answer:
a
Explanation:
Biomass energy is in fact a nonrenewable resource that makes use of materials from recently living organisms
( please mark me as brainliest, that would be most apprieciated! )
The statement about biomass energy is correct as the biomass energy is a nonrenewable resource that makes use of materials from recently living organisms and is present in Option A as it can end one day.
What is the significance of biomass energy?Biomass energy uses organic materials, such as wood chips, agricultural waste, etc., and they release pollutants into the air that can occur during the burning of biomass, which can be mitigated through the use of modern, efficient combustion. Due to its low carbon emissions, biomass releases fewer carbon emissions when burned than fossil fuels.
Hence, the statement about biomass energy is correct as the biomass energy is a nonrenewable resource that makes use of materials from recently living organisms and is present in Option A as it can end one day.
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What does an organism's genotype describe?
Answer:
genetic's makeup or a person's genes created from organisms
The unusual patterns on a silk moths wings are one of the most stunning examples of mimicry in the wild,mimicry can protect the moth?
The question is incomplete. The complete question is as follows:
The unusual patterns on a silk moth’s wings are one of the most stunning examples of mimicry in the wild. Mimicry occurs when an organism develops a physical characteristic or behavior similar to a protective trait in another species. What do you think these moth wings mimic? Why do you think this kind of mimicry can protect the moth?
Answer:
The silk moth's mimic the physical characteristics such as changes in wings pattern that resemble another moth species that is dangerous or unpalatable to predators.
This unusual change in wings pattern provide camouflage to the silk moths and prevent predators. Predators get confuse because of the mimic spcies and consider them as toxic or untasty and won’t attack.
Answer:
The moth wings actually look like the eyes of a much larger animal. This mimicry may protect the moth from predators.
Explanation: EDMENTUM ANSWER
Which of the following environmental changes is most difficult to survive?
A. An annual rainy season
B. Cyclic temperature fluctuations
c. Cyclic sunlight fluctuations
D. A forest fire
Answer:the anwser is b.
Explanation:
The following environmental changes is most difficult to survive is Cyclic temperature fluctuations.
What are climate fluctuations?Fluctuation or any form of regular change, except a trend and abrupt change. Oscillation to be subject to fluctuation tendentially variable and in a smooth and mobile way.
Among the main human activities that cause global warming and consequently climate change, the burning of fossil fuels for energy generation, industrial activities and transport; land use conversion;
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which element is found in proteins and nucleic acids but not in carbohydrates
proteins: H,C,N,O &S,P
Nucleic:H,C,N,O,&P
Carbohydrates:H,C,O
Lipids :H,C,O,N,P.
Urgently!
Give reasons
Fruits vegetables and grains should be washed thoroughly
“It is not always possible to find or buy organic fruits and vegetables in today's conditions. In order to purify pesticide residues in foods, the first thing that is usually done at home is to put these foods in vinegar water. However, vinegar water is not effective in reducing pesticide residues, but in reducing the microorganism burden. Studies have done that vinegar water increases the effectiveness of pesticide residues even more. The main purpose of adding vinegar to the washing water is to create an acidic washing environment and to remove the potentially harmful biological factors that can be found on the food in case of inadequate washing. However, many of the pesticides commonly used today cannot be removed from the food due to insufficient washing and are taken into thBe body. This causes pesticides to continue their harmful effects for long periods of time.
Answer:
Fruits, Vegetables and grains should be washed thoroughly to wash off any germs on them. It is really important to wash them to remove any harmful bacteria off them. These bacteria can be really dangerous for our stomach and can cause different diseases. Peeling them is also a way to remove bacteria.
The DNA of humans and mice is almost 92% similar. This similarity indicates that . Mice have a tail, while humans have a tailbone. The tailbone is a structure in humans.
Answer
Mice share a common ancestor with humans, homologousExplanation:
The DNA of humans and mice is almost 92% similar. This similarity indicates that mice share a common ancestor with humans. Mice have a tail, while humans have a tailbone. The tailbone is a homologous structure in humans.
The existence of similar genes (DNA) and pair of structures (tail and tail bone) between humans and mice is referred to as homology. The tail and tail bone that exist between the different animals are called homologous structures. Homologous structures are similar structures that can be found in different animals, indicating that the animals have evolved from a common ancestor. Homologous structures show a high degree of similarity in form but they may or may not have the same functions in the different animals.
The similarity in the DNA and the structures (tail and tail bones) that exist in humans and mice suggests that the two different specie are connected to a common ancestor.
Answer:
Mice share a common ancestor with humans, homologous
Explanation:
PLATO
Which is composed of animo acid and determines all the structures and function of organism
Put the following events that occur in a reflex arc in the correct order. Rank the options below. The motor neuron conducts action potentials through the anterior root and spinal nerve to an effector organ The motor neuron conducts action potentials through the anterior root and spinal nerve to an effector organ Open choices for matching The interneuron synapses with a motor neuron The interneuron synapses with a motor neuron Open choices for matching The sensory neuron synapses with an interneuron The sensory neuron synapses with an interneuron Open choices for matching A sensory neuron conducts action potentials through the nerve to the spinal cord A sensory neuron conducts action potentials through the nerve to the spinal cord Open choices for matching A sensory receptor detects a stimulus
Answer: Please see the explanation column for answers
Explanation:
A reflex arc is a nerve or neural pathway that controls a reflex action giving fast response to a stimulus without the conscious act of the brain. Here, the sensory neurons receive stimulation then synapses or connects to spinal motor neurons nerve cells which then connects to muscle cells acting as effectors.
Ranking the events that occur in the reflex arc in correct order gives
1st ---- A sensory receptor detects a stimulus
2nd---A sensory neuron conducts action potentials through the nerve to the spinal cord
3rd----- The sensory neuron synapses with an interneuron
4th----- The interneuron synapses with a motor neuron
5th------- The motor neuron conducts action potentials through the anterior root and spinal nerve to an effector organ.