A lion eating a zebra is an example of which characteristic of life? having cells responding to the environment using energy growing and developing
Answer:
C) USING ENERGY
Explanation: The Lion is using energy
Answer:
C
Explanation:
Why is calculating height from bone length useful to a forensic pathologist?
select all that apply
Humans have eyes composed of three layers: _____.
pupil
sclera
iris
choroid
retina
cornea
Answer: Sclera and cornea, iris and choroid and retina.
Explanation:
Human eye is that organ that helps us to see the things that are present around us. The outer layer of the eye is known as fibrous tunic which is made up of cornea and sclera.
The middle layer which is responsible for providing the nourishment to eye is known as vascular tunic which consists of the iris, chroid and ciliary body.
The inner layer that contains the photo receptors consists of retina.
This question is about the food web below. what is the energy transfer level from the kangaroo rat to the weasel shown in the food web?
Answer:
Approximately the same as the energy transfer from the meadow mouse to the oppossum
Explanation:
The nurse observes skin tenting on the back of the older adult clients hand. which action by the nurse is most appropriate?
a. notify the physician.
b. examine dependent body areas.
c. assess turgor on the clients forehead.
d. document the finding and continue to monitor.
The healthcare professional tents up the skin between two fingers to check for skin turgor. Checks are frequently made on the lower arm or belly. After being kept for a little while, the skin is released. Thus, option C is correct.
What are the features of skin tenting?Skin turgor in the elderly should be evaluated over the sternum or inner thies, where the skin is less affected by changes due to aging and consequently less delicate, to give more precise information and prevent potential skin harm.
The forehead, chest, and abdomen are areas where older clients' skin turgor status can be more reliably determined.
In addition to the dependent body areas, these should also be evaluated. In lieu of only documenting, monitoring, and informing the doctor, additional assessment is required.
Therefore, to assess turgor on the client's forehead action by the nurse is most appropriate.
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What is the difference between descriptive or inferential statistics?
In ovaries, the final products of meiosis are
A) haploid cells.
B) diploid cells.
C) triploid cells.
D) polyploid cells.
The correct answer is option A, haploid cell
Reason -
The final products of meiosis are sperm cells in male and eggs in female. The sperm and eggs are haploid cells . After meiosis, four haploid cell with chromosome containing one chromatid are produced. The sperm and egg cell (being final product of meiosis and haploid) have 23 chromosomes which join with opposite 23 chromosomes to form diploid cell.
Which mutation(s) would not change the remainder of the reading frame of a gene sequence that follows the mutation(s)? which mutation(s) would not change the remainder of the reading frame of a gene sequence that follows the mutation(s)? one deletion mutation. one addition and two deletion mutations. one addition mutation. one addition and one deletion mutation?
The two major types of sensory receptors, based on the origin of stimuli, are
why does a needle left out in the sun get so much hotter than a bucket of water left out in the sun
Answer:
Due to high specific heat of water than the needle.
Explanation:
The needle is a good conductor of heat. When the sunlight falls on it, it gets heat quickly. In the case of water, it takes more time to get heat. This is because the specific heat of water is more than any other substance. Specific heat is the amount of heat needed for 1gm of substance to get 1-degree Celsius rise in temperature. In water, it takes more time to heat. That's why the ocean, rivers take a long time to get heat than the land which causes sea breezes and land breezes. The water can hold the heat unless every atom of it gets heated. Water uses as the insulator for the heated objects. This is the very reason the water becomes less heat than the needle.
Which term describes a field where there are 20 moles per acre? A. population size B. population energy level C. population vigor D. population density
I think the answer is (A
The correct answer as to which term describes a field where there are 20 moles per acre would be the population density. The correct answer is D.
Population density is defined as the number of individual of a particular species per unit area. Population density is as opposed to population size. The latter refers to the number of individuals in a population without any reference to the area they occupy.
Going by the definition, 20 moles per acre refers to the population density because both the number of individuals and the area of space they occupied were captured.
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Where does protein synthesis take place?
a. in the nucleus
b. on smooth endoplasmic reticulum
c. on ribosomes
d. in the nucleolus?
In most cases, the greatest vulnerability to teratogens occurs during the _____ period of prenatal development.
Final answer:
The embryonic period is the most vulnerable phase for the developing fetus in terms of exposure to teratogens because critical systems and structures are being formed during this time.
Explanation:
In most cases, the greatest vulnerability to teratogens occurs during the embryonic period of prenatal development. This is because during the embryonic stage, which starts at implantation and lasts until the eighth week after fertilization, significant growth and developmental changes take place, including gastrulation, neurulation, and organogenesis. Vital structures such as the neural tube, which later becomes the brain and spinal cord, and the heart, limbs, and eyes, are forming, making this period critical for the development of the fetus.
Teratogens are most dangerous during this period as the foundations for major organ systems are being laid down. Exposure to harmful substances like alcohol can cause devastating defects or abnormal development, evidenced by research indicating that alcohol exposure during days 19 or 20 of gestation can lead to significant facial abnormalities linked to fetal alcohol syndrome (FASD). Therefore, it’s imperative for pregnant individuals to avoid teratogens during this sensitive stage to prevent potential harm to the developing fetus.
What is the maximum rate of dna replication in
e. coli (e.g., the rate at which dna polymerase incorporates new nucleotides into a polynucleotide chain)?
A patient is to receive enalapril (vasotec) 5 mg iv every 6 hours. each dose is given over 5 minutes. the medication is available in an injectable form, 1.25 mg/ml. identify how many milliliters of medication will the nurse draw up for each dose. _______
When neuronal connections that are used become stronger and faster, and the neuronal connections that are not used wither away, what is happening?
Cells can generate as many as 36 to 38 molecules of adenosine triphosphate (atp) from the metabolism of one molecule of glucose. which cellular process results in this amount of atp production?
Answer:
Aerobic cellular respiration
Explanation:
Living organisms undergo a metabolic (catabolic) process in which they use to produce the usable form of energy required by their cells for performing vital functions. This process is called CELLULAR RESPIRATION. Cellular respiration is the biochemical process by which cells breakdown organic molecules (glucose) to yield ATP (energy), CO2 and water. Organisms consume food, process them via digestion and absorbs high energy storing sugar molecules (glucose) in their cells. They breakdown this molecules and use the freed energy to power their movement and physiological functioning.
This process of cellular respiration can either occur in the presence of oxygen (aerobic) or without oxygen (anaerobic). The aerobic respiration which occurs in the cytosol of prokaryotes and both the mitochondria and cytosol of eukaryotes consists of Glycolysis, Kreb's cycle and Oxidative phosphorylation. The overall process results in the production of 38 ATP molecules in prokaryotic cells and 36 ATP molecules in eukaryotic cells.
N.B: The lost 2 ATP molecules is used to transport the intermediate substances to the mitochondria in eukaryotic cells.
The cellular process that results in the production of 36 to 38 molecules of adenosine triphosphate (ATP) from the metabolism of one molecule of glucose is cellular respiration, specifically aerobic respiration.
Aerobic respiration is the metabolic process by which cells convert glucose and oxygen into carbon dioxide, water, and ATP. It occurs in the presence of oxygen and involves three main stages: glycolysis, the citric acid cycle (also known as the Krebs cycle), and the electron transport chain.
During glycolysis, which takes place in the cytoplasm, one molecule of glucose is broken down into two molecules of pyruvate. This process generates a small amount of ATP and NADH.
The pyruvate molecules then enter the mitochondria, where they undergo the citric acid cycle. In this cycle, each pyruvate is further broken down, releasing carbon dioxide and producing ATP, NADH, and FADH2.
The final stage, the electron transport chain, occurs on the inner mitochondrial membrane. The NADH and FADH2 generated in glycolysis and the citric acid cycle donate electrons, which are passed through a series of protein complexes. This transfer of electrons drives the synthesis of a large amount of ATP through oxidative phosphorylation.
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An important buffer in the blood is a mixture of ________.
What information did scientists use when developing the geologic timescale?
Scientists studied the fossil record. They found four major changes in life forms. These four major changes were used to mark when one geologic era ended and the next began.
Scientists developing the geologic timescale used information from stratigraphy, biostratigraphy, and radiometric dating methods derived from the study of Earth's rocks and fossils.
Explanation:Scientists developing the
geologic timescale
used several different types of information, primarily derived from the study of Earth's rocks and fossils. They utilized information from
stratigraphy
, a branch of geology that studies rock layers, to understand the sequence of geological events.
Another crucial type of information was about fossil records. By studying the changes in the types of fossils found in different rock layers, they could develop a relative timeline of life on Earth. This is a concept known as biostratigraphy.
Furthermore, absolute dates of rock layers were obtained through radiometric dating methods, which estimate the age of rocks based on the decay of radioactive elements inside them. This provided numerical ages to correlate with the relative timeline from stratigraphy and biostratigraphy.
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our body send electrical messages throughout our body using charged atoms. these charged atoms have either a positive or negative charge because they either gained or lost electrons. what are these atoms called?
A. Lons
B. Covalents
C. Organic molecules
Tay-sachs disease is a disorder characterized by an accumulation of fatty substances called gangliosides in the brain and spinal cord. one cause of the disease is a mutation in the gene sequence that codes for the enzyme hexosaminidase
a. the enzyme is rendered nonfunctional when a single amino acid—glutamine—is incorporated into the enzyme instead of an arginine. in this scenario, what is the cause of tay-sachs disease?
How did whales evolve from land mammals? Claim,evidence,reason
What do water's properties of cohesion, surface tension, and adhesion have in common?
1) All have to do with the ionic bonds between water's atoms.
2) All result from the bonding within the hydrogen atom.
3) All are caused by the low electronegativity of the oxygen atom.
4) All are properties related to the attraction between water molecules.
Cohesion, surface tension, and adhesion are the properties of water. These properties commonly involve bonding with the hydrogen atom. Thus, option 2 is correct.
What are the properties of water?Water is a molecule made of oxygen and hydrogen atoms and exhibits polarity between the negative and positive charges. It shows various properties that include adhesion, cohesion, and surface tension.
The hydrogen atom bonds to the oxygen and creates cohesion for the surface tension to arise. The adhesive force attracts the water to the other molecules. These properties of the water allow bonding. The adhesion and cohesion forces attract the like and unlike molecules.
Therefore, option 2. cohesion, surface tension, and adhesion all result from hydrogen bonding in the water molecule.
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What does set point theory suggest about the probable results of bariatric surgery?
Set point theory proposes that the body has a natural weight "set point" that it strives to maintain, and bariatric surgery, while effective for initial weight loss, may be met with resistance from the body's homeostatic mechanisms, potentially leading to weight regain over time.
According to the set point theory, the body aims to stay within a preferred or stable weight range. Due to restricted food intake or malabsorption, people who have bariatric surgery can initially lose a lot of weight. However, the natural defenses of the body may prevent long-term weight loss.
Increased hunger, decreased energy expenditure, and adaptations that make long-term weight loss difficult to maintain can all be caused by metabolic and hormonal changes. In order to prevent weight gain and address the body's set point processes, people may need to significantly alter their lifestyles, get continuing assistance, and consider other options in addition to bariatric surgery.
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Feature detectors are specialized cells in the brain that _____.
The ability to detect certain types of stimuli, like movements, shape, and angles, requires specialized cells in the brain called feature detectors.
What is the name of the process in which rock combines with water molecules to form new compounds?
The name of the process in which rock combines with water molecules to form new compounds is called Chemical weathering.
What is Chemical weathering?Chemical weathering refers to the breakdown of rock by chemical reactions in which rock combines with water molecules to form new compounds resulting in a change of original composition of the rocks. This process of chemical weathering can occur in different ways as follows: Hydrolysis: In this, water directly react with many different minerals in rock by which original rock being transformed. Example, water will react with feldspar, changing it into a common clay called kaolin.
Oxidation: This involves reaction of metallic elements with oxygen. Example, Fe will react with oxygen (O2) to form reddish mineral called iron oxide (Fe2O3). Carbonation: This process involves carbon dioxide reaction with minerals in rocks. Carbon dioxide (CO2) will combine with water (H2O) to form weak carbonic acid (H2CO3) which slowly dissolve limestone rocks, into caves and caverns. Acid Rain: This refers to presence of traces of Sulfuric (H2SO4), nitric (HNO3), and carbonic acid (H2CO3) in rain which has a greater ability to weather rock than just ordinary rain.
Thus, the process by which rock combines with water molecules to form new compounds referred to as chemical weathering.
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Patches of melanin found on the skin form ________.
What factors affect cell regulation turning replication on and/ or off?
The factors affect cell regulation turning replication on and/ or off are the activation of regulatory proteins called kinases and cyclins and the binding of enzyme called Cdk (Cyclin dependent Kinase)
What is cell regulation?Cell regulation refers to any process that controls the series of events by which a cell undergoes the cell cycle. During the cell cycle, a cell makes a copy of its DNA and other contents, to divide in two by a process called replication. When cell cycle regulation doesn't occurs correctly, cells may divide in an uncontrolled way, resulting into diseases as cancer.
The cell cycle is controlled by a number of protein-controlled feedback processes. Two types of proteins involved in the control of the cell cycle are kinases and cyclins. Cyclins activate kinases by binding to them, specifically they activate cyclin-dependent kinases (CDK).
Thus, from above, the key factors that affect cell regulation turning replication on and/ or off are the activation of regulatory proteins called kinases and cyclins and the binding of enzyme called Cdk.
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The cycle in which water is changed and distributed to other areas is called
a. water cycle
c. ocean cylce
b. land cycle
d. none of the above
The correct answer is A) water cycle
Hope this helped = )
Scientists studied reproduction in the New Zealand mud snail to answer the question, “Are there benefits to reproducing sexually or asexually?” Which of these hypotheses would least likely aid the scientists as they worked to answer the question?
A.)Sexual reproduction is advantageous over asexual reproduction because it reduces the rate of mutation accumulation.
B.)Asexual reproduction is advantageous over sexual reproduction because it allows the snails to produce more offspring.
C.)Sexual reproduction is advantageous over asexual reproduction because it allows for snails to have increased genetic variation.
D.)Asexual reproduction is advantageous over sexual reproduction because it decreases the snails’ need for social interaction.