Answer:
à
Explanation:
r
tRna bonds with mRna, bringing in amino acids
4. Explain why nuclear radiation can be used to preserve food.
Answer:
The radiation destroys food-borne bacteria. Radiation is measured in units called rads. The FDA allows exposure of up to 100,000 rads for already approved foods. At this level, gamma rays penetrate the food and kill bacteria and other infectious organisms by preventing the organisms from dividing and growing
Explanation:
A biologist sequences the DNA of two different organisms and identifies these two sequences:
Sequence 1: GTACCACATCGAAGGGTC
Sequence 2: GTACGACACCGAAAGTTC
What conclusion can the biologist draw about the two organisms based on the DNA fingerprinting?
A.They are closely related but different species.
B.They are the same species.
C. One organism evolved from the other.
D. They are not related at all.
The two DNA sequences of organisms represent that they are closely related but different species.
What do you mean by Species?Species may be characterized as a group of organisms that can reproduce naturally with one another and produce fertile offspring.
DNA fingerprinting is a technology that reveals the similarity between the DNA sequences of two or more organisms of the same or different species.
Both the sequence are very similar to one another, only a few bases are altered which signifies that they are closely related but belongs to different species.
Therefore, the two DNA sequences of organisms represent that they are closely related but different species.
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According to the cladogram, which group of organisms is the closest relative to chordates?.
Answer:
Echinoderms.... ANSWER AFTER THAT is C
Explanation:
peace and love
Which substances are needed to make food in plants?.
Answer:
To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight. for photosynthesis. Carbon dioxide enters through tiny holes in a plant's leaves, flowers, branches, stems, and roots. Plants also require water to make their food.
Explanation:
What is the function of the placenta?
It covers the cervix.
It protects the vagina.
It nourishes the embryo.
It fertilizes an egg.
Answer: It nourishes the embryo.
Explanation:
The placenta's main purpose is to nourish the embryo. It helps to provide oxygen and nutrients to the embryo. The placenta is an organ that develops during pregnancy.
Laurie, after only 6 months gives birth to a daughter, allison. what are three complications that might be present in allison?
What type of plant is this?
I believe that is a rubber plant
Hope this helps!
HELP ME ASAP PLEASE ANSWER
Four o’clock flowers can be red (RR), white (rr), or pink (Rr). If a pink flower and red flower are crossed, what will be the phenotypic ratio?
100% pink
50% red, 50% pink
100% Rr
50% RR, 50% Rr
Rewrite what's noted
Red(RR)white(rr)Pink(Rr)As pink and red are crossed white is out of business.
So
Share will be halved
50% pink :50% red50% Rr:50% RROption D
40. during the song oh i just can't wait to be king" the crocodile has birds in its mouth. this is a
symbiotic relationship. what type of symbiotic relationship is it?
describe three scenes from the movie that show the following scavenger behaviors.
The name of the movie is 'The Lion King' and the missing scene here is the song "I Just Can't Wait to Be King" written by Elton John.
A crocodile that has birds in its mouth represents a type of parasitism, whereas scavenger behaviors include:
bearshyenas piranhasWhat is parasitism?Parasitism is a class of symbiotic relationships in which one species is benefited from such interaction and the other species is harmed.
In this case, when the crocodile needs to clean its tooths, it opens its mouth to allow the arrival of birds.
Moreover, scavengers are organisms that eat dead biomass (e.g. dead animals or rotting plants).
In conclusion, although the movie is NOT found here, a crocodile that has birds in its mouth represents a type of parasitism, whereas animals having scavenger behaviors include bears, hyenas and piranhas.
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Four o’clock flowers can be red (RR), white (rr), or pink (Rr). If a pink flower and red flower are crossed, what will be the phenotypic ratio?
Answer:
(RR)
Explanation:
Red dominates.
What changes occur in the gastric chyme(mixture of food inside stomach) when it passes to duodenum?
Answer:
Explanation:
Chyme passes from the stomach into the duodenum. There it mixes with bile and pancreatic juices that further break down nutrients. Finger-like projections called villi line the interior wall of the small intestine and absorb most of the nutrients.
ill give brain thing
Answer:
B
Explanation:
Bacteria are bigger and more complex than viruses, though they can still spread through the air.
Prenatal development begins with ______ and ends with ______. Multiple choice question. organogenesis; ovulation fertilization; birth ovulation; fertilization birth; death
2. Describe the role of the following in maintaining a constant body temperature in humans:
(b) The muscles:
Answer:
Muscles can also receive messages from the brain when the body temperature decreases. They respond by shivering. Shivering causes the muscles to contract and relax quickly. This process generates heat.
The study of normal tissues, or groups of cells and their surrounding extracellular materials, is called:.
Answer:
the study of tissues, or groups of cells and their surrounding extracellular materials, is called Histology.
How does the number of chromosomes in a human liver cell compare to the number of chromosomes in a human brain cell?
a
The number of chromosomes in both cells is equal.
b
The liver cell has fewer chromosomes than the brain cell.
c
The liver cell has more chromosomes than the brain cell.
d
The number of chromosomes in each cell type varies between individuals.
Answer:
A
Explanation:
All organs in the human body have the same number of chromosomes.
Hybrid offspring such as mules and zonkeys that are produced when two different, but similar species mate are not considered a true species because the hybrids are infertile. What type of reproductive isolation does this illustrate?
a. behavioral prezygotic reproductive isolation
b. gametic prezygotic reproductive isolation
c. postzygotic reproductive isolation
Answer:
I'd sat b
Explanation:
is this a question or a test or something
The line on which an object rotates is defined as
Answer:
An axis is an invisible line about which an object rotates, or spins.
Explanation:
How do we ensure that society appreciates the full importance of plants?
Answer:reasoning
Explanation:People will learn the importance of plants through reasoning and visual knowing that plants help provide oxygen and remove CO2 such as trees, and plants help and benefit mental help
By reasoning and spreading awareness
Plants provide us OxygenThey are responsible for rain They absorb carbon dioxide from air.If we can spread awareness among the people about the importance then it can be successful
Explain two ways in which the alveoli are adapted to increase the efficiency of gas exchange
Answer:
Adaptations of the alveoli:
Moist walls - gases dissolve in the moisture helping them to pass across the gas exchange surface. Permeable walls - allow gases to pass through. Extensive blood supply - ensuring oxygen rich blood is taken away from the lungs and carbon dioxide rich blood is taken to the lungs.
Which organelle regulates what enters and exits the cell.
Answer:
The cell membrane, also called the plasma membrane, is found in all cells and separates the interior of the cell from the outside environment
The cell membrane consists of a lipid bilayer that is semipermeable. The cell membrane regulates the transport of materials entering and exiting the cell
Although both humans and bacteria have ribosomes, streptomycin—which blocks ribosome function—does not harm a human who ingests it. Why?.
Streptomycin does not harm a human who ingests it because bacteria have different ribosomal units.
What is a ribosome?Ribosomes are organelles used by cells to synthesize proteins, it is for that reason that they are called protein factories.
Ribosomal units are different in eukaryotic cells (e.g. human cells) compared to prokaryotic cells and they do not bind to streptomycin in eukaryotes.
In conclusion, Streptomycin does not harm a human who ingests it because bacteria have different ribosomal units.
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The study of the interactions between drugs and their receptors and the series of events that result in a pharmacologic response is called
Answer:
Pharmacodynamics (PD) is the study of the biochemical and physiologic effects of drugs (especially pharmaceutical drugs
Place each description in the correct category.
represented by symbols
made of one type of atom
represented by formulas
cannot be broken down
can be chemically broken down
made of two or more types of atoms
Elements
Compounds
Answer:
The elements will break down into moister, h20
Explanation:
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1. Why is most food digested?
A. Digestive enzymes require a variety of substrates.
B. It ensures that the diet is balanced.
C. Most ingested food molecules are large.
D. To prevent disorders of the intestine.
1. Why is most food digested?
C. Most ingested food molecules are large.
Food is digested to break down big particles of food into smaller ones so that the absorption process takes place more efficiently.
Answer:
C
Explanation:
As food molecules are very large during intake, they cannot be absorbed by the small intestine as macromolecules. They need to broken down into smaller molecules for absorption to take place.
The gradual process during which glucose is broken down to release energy
Answer:
If the energy in glucose was released at once, most of the energy would be lost as light and heat. The light and heat could harm or even destroy the cell. The gradual process of cellular respiration allows the cell to control the release of energy into packages of ATP that can be used efficiently for cell activities.
Explanation:
What is the original starting color for Glucose indicator?
Answer:
If adding Benedict's reagent in the glucose solution and then heating it, the solution changes gradually from blue to dark orange. That is, colors change in the order of blue-green-yellow-dark orange according to the concentration of glucose.
Which adaptations allowed reptiles to complete their life cycles on land? an amniotic egg lungs four legs ectothermic metabolism
Answer: The amniotes are distinguished from amphibians by the presence of a terrestrially adapted egg protected by amniotic membranes. The amniotes include reptiles, birds, and mammals. A key adaptation that permitted reptiles to live on land was the development of scaly skin. I hope this helps
Explanation:
What is the net result of one glucose molecule going through the krebs cycle.
Answer:
Recall that glycolysis, stage I of cellular respiration, produces two molecules of pyruvate. These molecules enter the matrix of a mitochondrion, where they start the Krebs cycle.
Two molecules of pyruvate are produced during the first stage of cellular respiration, glycolysis. These substances enter a mitochondrion's matrix, where they initiate the Krebs cycle.
Thus, A little quantity of ATP (adenosine triphosphate) is produced by the Krebs cycle through substrate-level phosphorylation. Two ATP molecules are directly created in the Krebs cycle for every glucose molecule.
Electron transport chain (ETC): The Krebs cycle also generates high-energy electron carriers called NADH (nicotinamide adenine dinucleotide) and (flavin adenine dinucleotide), which transport the electrons to the ETC for additional ATP generation.
Carbon dioxide is generated as a waste product during the Krebs cycle's breakdown of glucose. Six CO2 molecules are produced overall for every molecule of glucose.
Thus, Two molecules of pyruvate are produced during the first stage of cellular respiration, glycolysis. These substances enter a mitochondrion's matrix, where they initiate the Krebs cycle.
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I’m general how many human activities influence the carbon cycle
Explanation:
Factories, cars, oil producers, woodcutting, building houses, and even building new roads makes the carbon cycle harder to go through.