Kidneys are used to excrete urine and toxic wastes. They are very essential for keeping the body clean. Usually it excretes urea, sodium and some salts which are considered as waste in the body.
Lungs are used to breathe in and out air. It helps us to stay alive. We breathe in oxygen rich air and breathe out foul carbon dioxide air.
A scientist is observing onion cells and human cheek cells under a microscope.
Which observation does she most likely make?
A. The onion cells have lysosomes, and the cheek cells do not.
B. The cheek cells have larger vacuoles than the onion cells.
C. The cheek cells have a nucleus, and the onion cells do not.
D. The onion cells have a cell wall, and the cheek cells do not.
Answer: A. The onion cells have lysosomes, and the cheek cells do not.
Explanation:
Answer:
the onion cell has a cell wall, and the cheek cells do not.
Which stWhy is Pluto now called a dwarf planet?
In your opinion, what can we do to reduce our consumption and make the planet more sustainable.
In your opinion, what can we do to reduce our consumption and make the planet more sustainable.
> Being environmentally conscious is not all about plastic bags; it’s about making everyday choices that will — quite literally — determine our success or failure as a species. We can be more conscious about reducing pollution, protecting wildlife, conserving natural resources and take other actions that can help slow the rate of climate change.
> Everyone can make a difference, particularly when smart environmental choices become a habit and perhaps even begins influencing others into taking similar actions. Doing the right thing for the future of life on Earth can even have immediate personal benefits. It can tap into your creativity, can get you more engaged with your community and the world, and may contribute to a healthier lifestyle.
Things you can do to reduce our consumption and make the planet more sustainable.Recycle. Turn down the bag. Buy only what you will use. Don't invest in idle equipment. Donate used goods. Make your garden lively. Buy products with less packaging. Avoid disposable products. Kick the bottled water habit. Upcycle. Give new life to old electronics. Hope it helps!!which statement correctly describes the transfer of energy between the blue arrows?
HELP PLEASE ASAP. 50 POINTS
Translate the sequence of amino acids in sickle-cell hemoglobin into (use third valine)
a) mRNA base codes
b) tRNA base codes
c) DNA base codes
Answer:
Sickle cell hemoglobin occurs in the beta chain of hemoglobin due to point mutation in the sixth codon which changes from glutamic acid to valine which is hydrophobic that causes the change in the size of the RBC in a crescent shape.
The protein or amino acid chain of this condition is as follows:
Protein with Sickle Mutation: VAL HIS LEU THR PRO VAL GLU
which is translated from mRNA sequence
mRNA with Sickle Mutation: G U G C A C C U G A C U C C U G U G G A G
mRNA sequence is the complementary sequence or anticodons of the mRNA sequence RNA:
tRNA with Sickle Mutation: C A C G U G G A C U G A G G A C A C C U C
mRNA sequence is transcribed from the transcription strand of DNA sequence:
DNA with Sickle Mutation: C A C G T G G A C T G A G G A C A C C T C
Which is an example of when Hector's somatic sensory system is in control?
After a long run, his body is sweating.
When jogging, he sees an ice patch and decides to change directions to a different route.
His eyes dilate because he sees something scary.
He eats a large meal and his body takes multiple hours to digest it.
The statement 'when jogging, he sees an ice patch and decides to change directions to a different route' is an example of somatic sensory system control.
What is the somatic sensory system?The somatic sensory system is a group of neuronal networks aimed at controlling the senses in the body.
This system (somatic sensory system) is involved in the perception of temperature, position, and pain.
In conclusion, the statement 'when jogging, he sees an ice patch and decides to change directions to a different route' is an example of somatic sensory system control.
Learn more about the somatic sensory system here:
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Answer:
B) When jogging, he sees an ice patch and decides to change directions to a different route.
Imagine taking a bite of a pizza. Briefly discuss the role that each part of the brain takes in this simple act. Medulla, Pons, Cerebellum, Thalamus, Hypothalamus, Amygdala, Hippocampus, Parietal Lobe, Occipital Lobe, Temporal Lobe, Frontal Lobe.
Answer:
- Medulla: transmits signals between the spinal cord and higher brain levels
- Pons: transmits impulses related to the voluntary skeletal movements from the cerebrum to the cerebellum
- Cerebellum: coordinates skeletal muscle contraction, conscious/subconscious movements, maintains muscle posture, and balance
- Thalamus: regulation of the human nervous system
- Hypothalamus: maintains the overall homeostasis of the body
- Amygdala: processes fearful and threatening stimuli
- Hippocampus: regulates learning, memory encoding and consolidation, and spatial navigation
- Parietal Lobe: processes information from the outside world (e.g., touch, taste, temperature)
- Occipital Lobe: interprets information from the eyes
- Temporal Lobes: process sensory information (i.e., pain and auditory stimuli)
- Frontal Lobe: higher cognitive functions (e.g., memory, problem-solving, emotions, impulse control, etc)
Explanation:
The medulla (medulla oblongata) is the lowest portion of the brainstem, which is linked by the pons to the midbrain and continues with the spinal cord. The medulla is known to transmit signals between the spinal cord and higher brain levels, thereby controlling autonomic activities (e.g., heartbeat and respiration). The pons is a mass of transverse nerve fibers that links the medulla with the cerebellum, it transmits signals from the forebrain to the cerebellum. The pons is involved in different functions, e.g., sleep, respiration, hearing, equilibrium, taste, eye movement, swallowing, bladder regulation, facial expression, etc. The cerebellum is a small part of the brain involved in physical movements (e.g., posture, balance, coordination), which receives sensory information from sensory systems, the spinal cord, and different parts of the brain. The cerebrum is the largest part of the brain, it is involved in speech, thinking, reasoning, problem-solving, emotions, initiating/coordinating movements, regulating temperature, learning, etc. The thalamus is a mass of gray matter located in the forebrain which is involved in diverse functions (i.e., relay of sensory signals, regulation of consciousness, sleep, alertness, etc). The hypothalamus is a small, central, area of the brain that connects the nervous to the endocrine system that acts to maintain the overall homeostasis of the body. The amygdala is a structure located in each hemisphere of the brain that processes fearful and threatening stimuli. The hippocampus is a structure located in the depths of the temporal lobe that regulates learning, memory encoding and consolidation, and spatial navigation. The parietal lobe is located at the upper back area in the skull, it is involved in processing sensory information from the surrounding world (e.g., touch, taste, temperature). The occipital lobes are responsible for transmitting visual information to the temporal lobes, and they are also associated with memory skills. The frontal lobe is the most anterior part of the brain, which is involved in higher cognitive functions (e.g., social interaction, motor function, memory, emotions, impulse control, problem-solving, etc).
Which of the following statements about chemiosmosis is NOT true?
Hydrogen ions move down the concentration gradient.
It is caused by a higher concentration of protons on one side of the membrane.
Energy is used as protons pass through the ATP Synthase.
A net of 38 ATP is produced from each glucose molecule.
Next question-
Cellular respiration
has carbon dioxide and water as waste products
forms glucose and oxygen.
results in the formation of ADP.
occurs in the chloroplast
Answer:
I don't know the answer to the first one, but I can answer the second question. Cellular respiration has carbon dioxide and water as waste products.
Explanation:
Cellular respiration does not form glucose & oxygen and doesn't occur in the chloroplast, but does form ATP energy, carbon dioxide, & water and the process occurs in mitochondria. Photosynthesis on the other hand forms glucose & oxygen and does occur in the chloroplast.
Which is a key component of the energy molecule ATP?
Answer:
glucose
Explanation:
correct me if I'm wrong
The brain is enclosed inside a bony box called ?
Answer:
The brain is enclosed inside a bony box called cranium.
all plants carry on photosynthesis true or false
Answer:
true
Explanation:
i think
If your body temperature gets too low, why is it dangerous?
A. Enzymes become denatured.
B. Uncontrollable shivering can be deadly.
C. Reactions become too slow for cells to survive.
D. It is not dangerous.
Answer:
Enzymes become denatured.
In case of very low body temperature, the body reactions will become slow and lead to death. The correct option is C.
What is hypothermia?When your body temperature falls, your heart, nervous system, and other organs are unable to function normally.
If left untreated, hypothermia can result in the complete failure of your heart and respiratory system, as well as death.
Thus, the correct option is C.
For more details regarding hypothermia, visit:
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Pleaseeee help I need to finish my test :/
When an organism undergoes mitosis and then divides in half to produce two new and identical organisms , this is called
A: regeneration
B: binary fission
C: budding
D: sporulation
Answer:
B: binary fission
Explanation:
What renal and hormonal factors will cause an increased release of aldosterone from adrenal cortex?
Answer:
Renin; angiotensin I and angiotensin II
Explanation:
Renin is a key hormone involved in the renin-angiotensin-aldosterone system (RAAS), which is responsible for regulating blood pressure in response to changes in blood volume. Renin is secreted primarily by the kidneys to promote the production of the peptide hormone angiotensin in the blood vessels. Subsequently, angiotensin stimulates the release of aldosterone from the adrenal cortex, stimulating sodium retention by the kidneys. Renin acts on its substrate angiotensinogen to yield angiotensin I, which is then converted to angiotensin II by the angiotensin-converting enzyme (ACE). Finally, angiotensin 2 promotes the release of aldosterone by the adrenal cortex, which acts on renal tubules, leading to the reabsorption of sodium and water and the excretion of potassium.
What type of cells are simple animal and plant cells?
White blood cells
Specialized cells
Unspecialized cells
Red cells
Help please ASAP, easy question
A species slowly loses numbers and goes
through natural selection until no individuals
are left. This describes what type of
extinction?
A evolved extinction
B. background extinction
C. mass extinction
D. endangered extinction
Answer:
evolved extinction
please mark me as brainliest
What compound is a hydrocarbon?
Answer:
A hydrocarbon is an organic chemical compound composed exclusively of hydrogen and carbon atoms.
How do you change ADP to ATP?
A. Add a phosphate group
B. Remove a phosphate group
C. Add an amino group
D. Remove an amino group
What is produced in abundance by pioneer species?
a) plants
b) cones
c) seeds
d) wet habitats
Answer:
A (plants)
Explanation:
Pioneer species usually create plant litter and break them down as leaf mold after a while which would make new soil for secondary succession and nutrients for small fish an aquatic plants < most of that came from Gogle because if it came from my head it would've been hard to understand lol
Question 1 of 10
Which statement is true about nitrogen and oxygen?
A They make up about 99.9% of the human body
B. They both contain no subatomic particles
O
They are both made of protons neutrons and electrons.
o
They are both used to make water molecules.
SUBMIT
Which of the following particles has a negative charge?
A. Electron
B. Nucleus
C. Proton
D. Neutron
anyone help me please
Answer:
The human body is controlled by a network of living wires called the nervous system.
What is the term for a preserved footprint left behind by an animal?
O A. Embryo
O B. Code
O C. Fossil
O D. Isotope
Answer:
A fossil.
It would be C
what is photosynthesis
and precipitating??
Answer:
Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that, through cellular respiration, can later be released to fuel the organism's metabolic activitie
In meteorology, precipitation is any product of the condensation of atmospheric water vapor that falls under gravitational pull from clouds. The main forms of precipitation include drizzling, rain, sleet, snow, ice pellets, graupel and hail.
Explanation:
I hope this answers is helpful to you
describe the primary differences between plant and
animal cells. Be sure to include a discussion of the various organelles specific
to each cell and how they differ between plant and animal cells
Explanation:
plant cells have cell membrane and cell wall while animal cells only have the cell membrane missing the cell wall
........ provides genetic continuity from generation to generation.
a) sexual reproduction
b) fusion of gametes
c) asexual reproduction
d) meiosis
Answer:
d) meiosisExplanation:
The process of meiosis preserves genetic continuity for future offspring by ensuring that two sexually reproducing organisms produce offspring that have the same number of chromosomes as the parents.
It ensures that the offspring will be able to mate with other organisms of the same species.
¿Como se llama ?
1.- Embrión se desarrolla dentro del sistema reproductor femenino.
2.- Formación de un organismo a partir de huevos
Answer:
1. Vivíparo
2. Ooviparismo
Explanation:
Viviparismo se define como el proceso de desarrollo de un animal en el cual el embrión crece dentro dentro del sistema reproductor femenino en una estructura acorde que le permite obtener alimento y oxígeno hasta su nacimiento. El viviparismo placentario es el tipo de desarrollo más extendido entre mamíferos (por ejemplo, perros, caballos, gatos, conejos, etc), a excepción de mamíferos que son ovíparos (por ejemplo, el ornitorrinco) y los mamíferos marsupiales que no poseen placenta y donde feto se desarrolla en una bolsa externa llamada marsupio (por ejemplo, los canguros). Por otra parte, el oviparismo es un mecanismo de desarrollo en el cual el embrión crece dentro de un huevo desde el momento que la hembra lo expulsa hacia el exterior. Cuando se produce este suceso, los embriones se encuentran muy poco desarrollados y por lo tanto deben cumplir su ciclo de crecimiento (hasta eclosionar del huevo) fuera del vientre materno. Algunos ejemplos de animales ovíparos incluyen anfibios, reptiles, aves, insectos, etc.
Which factor best explains why liquid water exists on earth
Answer:
due to atmospheric pressure
Answer:
Atmospheric pressure
Explanation:The only planet that have water bodies is earth. We know that water is one of the important factors for all living organism. Liquid water exists on the earth's surface is due to the atmospheric pressure
magine that a scientist takes a group of Anolis lizards and introduces them into an enclosure at a research facility in continental South America. He notes that the lizards thrive in this new environment. The fact that Anolis lizards could survive in habitats outside of the Caribbean is a reflection of their ____ niche; their _____ niche is determined by their ability to disperse to other areas as well as predation and resource availability.
Answer: Fundamental, realized
Explanation:
The realized niche of a species is usually the result of predation, competition, and other types of interaction between species.
The size of realized niche is determined by interspecific competition .The fundamental niche is larger than the realized niche.
The fundamental niche represents all the habitats where a species could possibly live, but competition among different species usually restricts a species to a smaller area, which is the realized niche
During production of a drug, all work area surfaces must be disinfected using sterilized disinfectants. Which of the following statements about disinfectants are true? Select all that apply. View Available Hint(s)for Part A Disinfectants destroy all microbes present on a surface. Disinfection can be used to treat work surfaces as well as workers (i.e., washing hands). Disinfection can occur by physical or chemical means. Disinfectants are used to inhibit or destroy pathogens. Endospores and viruses can resist disinfectant treatment.
Answer: The correct options are
--> Disinfectants are used to inhibit or destroy pathogens,
--> Disinfection can occur by physical or chemical means,
--> Endospores and viruses can resist disinfectant treatment.
Explanation:
To prevent infectious diseases from spreading or to sterilise work area surfaces during the production of drugs, chemicals known as disinfectants as used. These are chemicals that kill or inhibit the growth of pathogens. Other chemicals such as antiseptics can also kill and prevent the growth of mainly pathogenic microorganisms. However, disinfectants are stronger chemicals than antiseptics and so are often used on non-living things and surfaces.
Disinfection does not necessarily kill all microorganisms, especially resistant bacterial spores (endospores) and viruses, so it is less effective than sterilisation.
There are generally two methods of disinfection:
--> The chemical method: A typical example of a chemical disinfectant is the carbolic acid. It is used for disinfecting lavatories and floors.
--> The physical method: here, physical agents are use to disrupt and damage the pathogenic organisms on work surfaces. Some typical example include: UV irradiation, heat, sunlight exposure, sonic or hydrodynamic pressure and radiation.
