Answer:
True
Explanation:
Chickens have a similar bone structure, on a smaller scale, to Tyrannosaurus rex.
Answer:
(A)
Explanation:
The most basic comparison shows us that T. rex had “arms” and chickens have wings. ... close to 96%, though), so it is true to say that birds and T. rex are related.
Which of the following is an organism whose cells each contain a membrane
bound nucleus?
Answer:
D. Eukaryote
Explanation:
An organism that has membrane-bound organelles will have more complex organelles like mitochondria, Golgi apparatus, and ER. These are known as Eukaryotes. Additionally, they will have a nucleus that has the DNA coiled inside. Prokaryotes do not have membrane-bound organelle and the DNA floats in the cytoplasm. Most plants and animals are eukaryotes and all multicellular organisms are too.
Which items are part of the Arctic tundra ecological community?
A scientist helps a colleague do a better experiment by:
Answer:
Have a nice day
Explanation:
A scientist can help a colleague out by offering advice and telling the person how to best perform a standard procedure. This will help the colleague do better in the experiment and also help ensure that the right things are done and the efforts are successful.
What does NOT describe the region known as the motor end plate?
Select one:
a.
It is highly folded.
b.
It is part of the muscle fiber.
c.
It contains synaptic vesicles.
d.
Nuclei and mitochondria are abundant.
You have discovered an unknown organism ‘ X' belonging to the kingdom Animalia. What steps would you take to classify this organism ?
Answer:
The steps i would take is that i would find out if this X organism is that check for heterotrophs, multicelluar or not, has cell walls or not and finally does it have sensery organs. If all the boxes are finally checked and correct i would fianlly classify this organism
During exercise, epinephrine and norepinephrine are released from the adrenal medulla. Epinephrine and norepinephrine have the same effect on plasma glucose levels as glucagon. Explain how epinephrine and norepinephrine affect plasma glucose and why this is important during exercise.
Answer and explanation:
Epinephrine and norepinephrine are two hormones that are released from the adrenal medulla when the body is under stress (like during exercise, for example) as a part of the sympathetic response.
These hormones have many functions and they all work together to prepare the individual for a fight or flight response - like increasing heart rate and producing bronchodilatation. One of these functions is the rise of glucose levels in blood which is important for this substance to reach several tissues, like the skeletal muscle. The skeletal muscle will make use of this glucose to produce ATP and generate the required energy for muscle contraction through a process called glycolysis, which is key for the fight or flight response mentioned above.
When we exercise, glucose levels rise thanks to these hormones so the skeletal muscle can have enough energy to contract and move as we want. If the exercise is too intense or prolongued, glucose levels will drop and other fuels will be needed to sustain this activity, like stored glycogen and fat.
What is abortion and how does the process work. How much money does abortion usually cost.
Answer: Abortion is the killing of an unborn baby. Sometimes the head and bones are crushed, and pliers and scissors are used to slice and pull out the dead baby. I dont know how much it costs
Explanation:
Which statement best explains the process occurring in step 4 of the life cycle ?
Answer:
d (pls give brainliest)
Explanation:
A massive increase in the growth of a specific species of algae resulted in record-breaking levels of a potentially dangerous toxin being released into the water. A researcher hypothesizes that the unusual growth of this algal species was caused by an increase in water temperature. The researcher designs an experiment to test the hypothesis. Which of the following is the dependent variable in the researcher's experiment?
a. The growth of the algae
b. The temperature of the water
c. The concentration of toxin in the water
d. The different species of algae growing in the water
Answer:
a. The growth of the algae
Explanation:
The researcher already knows that the over-growth of algae species results in excessive levels of a potentially dangerous toxin being released. But he/she wants to know what is causing this algae over-growth. The principal hypothesis is that the increase in water temperature is the cause of the unusual growth of this algal species. The researcher hypothesizes that the higher the temperature levels are, the more growth rate the algae will exhibit.
So in this experiment, the researcher can voluntarily modify the temperature in order to see how it changes the algae growth.
Before answering the question, let us remember a few concepts.
Independent (manipulated) variable refers to all the variables in an experiment that provoke a response in another variable. An independent variable is the one that changes or is controlled and modified in the experiment to analyze how another variable responds to it. It changes to analyze its effects on the dependent variable. Usually, the independent variable is represented by the X letter. The Dependent variable reacts to any modification of the independent variable. Any change in the manipulated variable provokes a proportional or inversely proportional change in the dependent variable. It represents the quantity of something, such as height, weight, length, rate, etc. It is usually identified by the letter Y.Now, let us analyze the options.
c. The concentration of toxin in the water. This is a dependent variable, which depends on the algae growth. The more algae present, the more toxins. However, this is not what the researcher is studying. He/She wants to know what is causing the increase in algae. So toxins, in this study, would be a secondary effect.
d. The different species of algae growing in the water . Probably this is also related to temperature and the biology of each algal species. However, the researcher is interested in a specific species of algae.
b. The temperature of the water. The temperature of THE water is directly involved in this experiment, but as the INDEPENDENT VARIABLE. The researcher will modify the temperature in order to know how it changes the algae growth. The researcher voluntarily modifies this variable, and this change provokes a change in the dependent variable.
a. The growth of the algae. The Growth of THE algae is the DEPENDENT VARIABLE. It CHANGES ACCORDING TO THE TEMPERATURE. So the change in the algae growth will depend on how the researcher modifies the temperature. We are referring to one specific algal species. This species is responsible for the toxins´ productions and is suggested to depend on temperature.
The organized set of rules to sign names to chemical compounds is alles
A Binary compounds
B. Elemental nomendaure
C. Chemical nomendature
D. Stock system
Answer:
B. chemical nomenclature is your answer
Which two formulas represent compounds?
O A. H2
O B. HCI
O C. Ag
O D. Naci
Answer:
B and D
A.its a gas not a compound
C.silver is an element
a compound is made up of two elements
How to do simple interest ?
Answer:
I= PRT/100
Explanation:
P= principal
R = rate
T= time
13. We observe objects that move and notice changes that happen quickly. Which of the following would be most difficult to observe directly with our eyes? O a fireworks display O boiling water in a pot O burning wood O a temperature change
Answer:
its would be the temperature changeing
Explanation:
because you can turn on the fan and other things
Select the correct answer.
Which alignment of the Sun, Moon, and Earth causes a lunar eclipse?
Answer:
Observing a Lunar Eclipse
A lunar eclipse occurs when the Moon passes directly behind the Earth into its umbra (shadow). This can occur only when the Sun, Earth, and Moon are aligned exactly with the Earth in the middle. Hence, a lunar eclipse can only occur the full moon phase.
Explanation:
SANA NAKA TULONG☺️
UULUU 15 is Quritall Streptobacteria null hypothesis Scientic Method - An exemple: In early 2000 a disease appeared in the northeastern United States that had never been seen before. The disease produced a fever and nasal congestion causing the tip of the nose to turn red. The bacteria that caused the disease was isolated and found to be a certain type of streptobacteria. A certain antibiotic called Curitall has been effective against other similar streptobacteria, and so an experiment was set up to test it Curitall would be effective against this certain type of bacteria. On this discussion thread post what the null hypothesis is, and explain what would happen to people infected with this Streptobacteria if they don't take any antibiotic. For maximum points, compare expected rates of healing between experimental and control group subjects if Curitall does not work. Respond to instructors comments and questions as necessary,
1.12 The chances of having another daughter from parents who already have
2 sons and one daughter are...
A 75%
B 50%
C 25%
D 33%
Erosion becomes a constructive force when
A) It deposits what it is carrying somewhere else (deposition)
B) it removes the top layer to let the new underneath be fresh
C) It is removes the bad and leaves only the good
D) It takes junk out of your way
Answer:
La (a) y la (b)
Explanation:
Espero ayudarte suerte
A tick thats bites a dog and infects it with Lyme disease would be considered an example of
A. Commensalism
B. Parasitism
C. Mutualism
D. Succession
Answer:
Parasitism
Explanation:
parasitism
Looking at the image to the right, which two letters would be responsible for lowering the water table?
A) C and D
B) All of them
C) A and D
D) A and B
Answer:
d
Explanation:
evaporation is the water being lost from the water body into atmosphere fence water level lowers
please explain why the gastric glands secret pepsinogen and not pepsin
Answer:
The correct answer is - to protect the cells of these secretory glands from pepsin.
Explanation:
Pepsinogen is an inactive form of enzyme pepsin that is released by specific cells called chief cells within the gastric lining Releasing the inactive form of pepsin in preventing the auto-digestion of protective proteins and the cells of these secretory glands in the lining of the digestive tract.
Pepsinogen is activated by acidic pH to pepsin of the stomach lumen and the cell lining of the stomach is protected by mucus lining.
Do you think websites such as ancestry and 23andme should have databases that are not allowed to be used by law
enforcement or insurance companies, and be 100% private? Currently, they can be used without any restrictions. Explain your answer.
Answer:
its a risky thing to do but i wouldnt say illegal .. like ciggarattes,, they bad bit not ILLEGAL
Explanation:
you dont know who really has your DNA sampled or what they doing with it .. thats the risky pary
BUT this a good question
What name is given to a proposed explanation for a set of observations
Answer:
Hypothesis
Explanation:
An hypothesis is a proposed explanation for a set of observation.
Which of the following substitutions can help reduce air pollution?
The most likely explanation for showing fewer organisms at each feeding level going up the
pyramid is that
1.
some energy is lost to the environment as heat
2.
the larger the organism, the less energy it requires
3
some energy is recycled within each level and remains there
4
decomposers convert most of the energy into inorganic compounds
Answer:
1.some energy is lost to the environment as heat
Answer:
Answer is 1
Explanation:
AUGGCGUUU which of the following DNA strands could have been the template for this RNA?
Answer:
3' TACCGCAAA 5'
Explanation:
Transcription is the process by which a particular DNA sequence (e.g., a gene) is used as a template to synthesize a complementary RNA sequence that grows in a 5′ → 3′ direction. This RNA molecule is usually a messenger RNA (mRNA) which is then used to synthesize a polypeptide chain (i.e., a protein) by a process called translation. The complementary RNA molecule produced during transcription is synthesized according to the base pair rules, i.e., Adenine (A) bases always pair with Thymine (T) bases, while Guanine (G) bases always pairs with Cytosine (C) bases. In RNA, Uracil (U) bases pair with adenine, thereby replacing thymines during transcription.
One of the following minerals is needed for men more than women :
Answer:
men generally need slightly higher amounts of vitamin C, zinc and certain B-vitamins than women
Explanation:
What is marine habitat and its characteristics
Refer to the attachment
Hope it helps you
1. Sensitization makes a dog
A. easier to condition,
B. more responsive to later stimulation,
C. more difficult to condition.
D. less responsive to later stimulation,
Answer:
A.easier to condition
Explanation:
The dog may pant and pace when it's owner leaves the house, and over time, that dog may begin barking, destroying furniture and doorways or may vomit. The scientific term for what has happened those is sensitization.
D.F. is a 37-year-old woman who presents to the emergency department after having a seizure.
Data
PMH: Seizures, unknown type
Headache
Housewife
Feels weak
No loss of consciousnessObjective Data
Vital signs: T 37 P 72 R 18 BP 114/64
Lungs: clear all bases
O2 Sat = 100%
CV = heart rate regular, positive peripheral pulses
Required:
a. What other assessments are necessary for this patient?
b. What are some of the causes of seizures?
c. Develop a problem list from objective and subjective data.
Answer:
1. Other assessments are necessary to this patient on given information of the patients are :
- headache before or after seizures.
- if proper functioning in sensory organs for taste, smell, hear
- complete brain assessments
- questionnaire related to seizures.
- forget about the seizure episode
- EEG
- complete blood test
- head CT/ MRI scan
2. CAUSES OF SEIZURES
High blood pressure due to
Sudden electric activity in the brain
too high or low levels than usual of sodium or glucose in the brain
Infection in brain
brain tumor
cardiac disease
high fever
3. in this case seizure is not known, during seizure time headache is common but with a high grade when compared to the normal, mainly it starts before the seizure.
in seizure time some times complete loss of memory, systolic and diastolic blood pressure also increases, heart rate increases. then oxygen saturation less than 100%. in this case heart rate is regular .
what do i need to do if i want to master the genetics section