A woman who does not take prenatal vitamins during the course of her pregnancy is at greatest risk for:
Which type of dna produces a light band when treated with giemsa stain?
Which question can be answered by science? A. Is it acceptable to make people recycle grocery bags? B. How much water is used to produce one paper bag? C. Should the government regulate the use of grocery bags? D. Is it right for stores to provide plastic bags for free?
Increased activity in the ________ during rem sleep may best explain why dream images are often accompanied by a strong emotional tone.
In _____, the alveolar walls break down, adjacent alveoli fuse, and the lungs lose their elasticity.
What is one result of a chemical change?
A.Energy is created.
B.A new material is formed.
C.Materials change from one state to another.
D.Elements are permanently destroyed.
Cellular respiration is the process involved in the breakdown of glucose molecules in order to generate energy for cellular activities given the general reaction below which of the following best describes the products labeled X and Y
C6H12O6 + O2 → _x___ + __y___ + energy
A. The products are CO (carbon monoxide) and H2O2 (hydrogen peroxide), which then decompose into carbon dioxide (CO2) and wate (H2O)
B. The products are H2O (water) and CO2 (carbon dioxide), which then undergo anaerobic respiration
C. The products are CO2 (carbon dioxide) and H2O (water) which then become the reactants for photosynthesis
D. The products are O2 (oxygen) and H2O (water), which are then used for growth and to keep the organism hydrated
Answer:
The products are CO2 (carbon dioxide) and H2O (water), which then become the reactants for photosynthesis.
Explanation:
i took the test trust me.
Suppose you extracted dna from a cheek cell that contains two copies of the same alu insert (one on each homologous chromosome). after 30 cycles of pcr, how many total copies of this region would be produced (assuming successful amplification)? show your work.
After n cycles of PCR = 2^n copies of the target sequence
Where n = 30 cycles as given in the problem.
Substituting this to the identified formula, let
2^30 1,073,741,824 copies of the target sequence.
Therefore, a total of 1,073,741,824 copies would be produced.
Olive oil, canola oil, and cashew nuts are rich in monounsaturated fatty acids. olive oil, canola oil, and cashew nuts are rich in monounsaturated fatty acids.
a. True
b. False
Which of the following is not a major function of the roots?
The flexor hallucis longus muscle originates from the __________.
a strain or tear on any of the muscles that straighten the hip and bend the knee is known as a/an _____.
Answer:
Hamstring injury
Explanation:
A Hamstring injury occurs when one or more of your hamstring muscles is strained or pulled. They are consist of three muscles that run along the back of your thigh.
when does cellular respiration occur? are there any situations where living cells are not respiring?
The nurse hears the ventilator alarm come from the room of a client who is receiving mechanical ventilation. when arriving in the client's room, which assessment does the nurse perform first?
Hormones are ___________. chemicals released into the bloodstream by the endocrine glands chemicals found in the synaptic vesicles, which when released, have an effect on the next cell chemicals found in the soma, which when released, have an effect on the next cell chemicals released into the bloodstream by the brain
What scientific tool helped in the development of cell theory?
Does this experiment show that cd4 is the only membrane protein required for hiv entry? does this experiment show that cd4 is the only membrane protein required for hiv entry? no, the experiment shows that hiv does not utilize cd4 as a receptor. yes, because unbound cells are infected by hiv. yes, because the antibody to a protein other than cd4 was used. no, because the experiment does not test other membrane proteins.
Yes because actually this experiment shows that CD4 was the only membrane protein needed for HIV entry since only CD4 had an antibody added to it and the result leads to no HIV could infect the cell. If other membrane proteins present that were required for HIV entry, then it would also have gotten infected.
Answer:
yes, because the antibody to a protein other than cd4 was used.
The brain and spinal cord are covered and protected by three connective tissue layers called __________.
Final answer:
The three protective layers of connective tissue covering the brain and spinal cord are known as the meninges, consisting of the dura mater, arachnoid mater, and pia mater.
Explanation:
The brain and spinal cord are covered and protected by three connective tissue layers called meninges. These layers are, from the outermost to the innermost, the dura mater, the arachnoid mater, and the pia mater. The dura mater is a robust and durable membrane that provides a strong protective sheath over the brain and spinal cord. The arachnoid mater is a web-like layer that sits beneath the dura mater. Finally, the pia mater is a delicate membrane that closely envelopes the surface of the brain and spinal cord, following the contours of these structures closely. Between the arachnoid and pia mater lies the cerebrospinal fluid, which offers additional protection and cushioning to the central nervous system.
The kingdoms included in the linnaeus system of classification are
Okay so I think this is a trick question?
Risk is __________.
A. the probability that something unwanted will happen
B. the probability that something will happen
A scientist measures the weight of two different animals one is 250 grams and the other is 330 grams in milligrams what is the difference between the two weights of the animals
Which of the following compounds may be polymers
A. Carbohydrates
B. Nucleic acids
C. Proteins
D. All of these
The option (D) is correct. All of these are polymers.
What do you mean by polymers?A polymer is a substance or material consisting of very large molecules called macromolecules, composed of many repeating subunits. Due to their broad spectrum of properties, both synthetic and natural polymers play essential and ubiquitous roles in everyday life.
Moreover, polymer is a large molecule or a macromolecule which essentially is a combination of many subunits. The term polymer in Greek means 'many parts'. Polymers can be found all around us. From the strand of our DNA, which is a naturally occurring biopolymer, to polypropylene which is used throughout the world as plastic.
Therefore, examples of synthetic polymers include nylon, polyethylene, polyester, Teflon, and epoxy. Natural polymers occur in nature and can be extracted. They are often water-based. Examples of naturally occurring polymers are silk, wool, DNA, cellulose and proteins.
Learn more about polymers:
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What is a diagnostic sign for meningitis marked by the person's inability to extend the leg completely when the thigh is flexed upon the abdomen and the person is sitting or lying down?
Which of these is a process during which the hydrosphere interacts with the geosphere?
1. Solidification of water into ice
2. Absorption of rainfall by soil.
3. Evaporation of rainfall from puddles.
4. Condensation of water vapor into water.
Upon assessing the client's jaw, the nurse finds decreased range of motion and notes crepitus. what would the nurse suspect?
When the protons are concentrated on one side of the membrane, they pass through golgi complex and form what?
What do hypotheses, theories, and laws have in common?
Trondheim, norway is located at approximately 63° n. despite its high latitude, it has a relatively moderate annual temperature pattern. what likely accounts for this moderation of temparature
Where in the ocean are you likely to find animals that make their own light?
A. The mesopelagic zone
B. The continental shelf
C. The epipelagic zone
D. The Gulf Stream
Answer: Option A
Explanation: The second zone that is found in the ocean is the Mesopelagic zone. This zone lies from 651 to 3300 feet.
This zone has very less light as sunlight cannot penetrate upto this distance. There are hardly any plants founds in this zone and the animals here has the property of bioluminesence. This property produces light from the skin of the organism to distract the predators.
The common fishes and organism found here are giant squid, cuttle and some other molluscan.
Which part of an enzyme molecule binds to its associated substrate?