Answer:
Solution
For figure (a)
During interval AB Velocity is +ve, so the particle is moving in +ve direction, but it is slowing down as acceleration (slope of v-7 curve) is negative.
During interval BC Particle remains at rest as the velocity is zero. Acceleration is also zero.
During interval CD Velocity is -ve, so the particle is moving in -ve direction and is speeding up as acceleration is also negative.
For figure (b),
During interval AB Particle is moving in +ve direction with constant velocity and acceleration is zero.
During interval BC Particle is moving in +ve direction as velocity is +ve, but it slows down until it comes to rest as acceleration is negative.
During interval CD Velocity is -ve so the particle is moving in -ve direction and is speeding up as acceleration is also negatived
Drug manufacturers must test their new products before they can be marketed. A pill containing a new drug was given to participants in Group A. A pill containing NO drug was given to the same number of participants in Group B. In this test, the drug given to the participants in Group A was the —
The drug given to the participants in Group A was the clinical trial drug.
After the manufacturing of a drug, the new drug needs to be evaluated before being pushed into the market for population use.
Researchers usually follow three main steps:
Preclinical drug trialsAnimal trials Human clinical trialsDuring the human clinical trials, drugs that have passed animal tests are used for human clinical trials.
This involves the use of two groups:
Group A: A pill containing a new drug known as the clinical trial drug will be given to participantsGroup B: A pill containing NO drug known as placebo will be given to the same number of participants.The results obtained from both grouped would be evaluated. This will give the manufacturer a clear view concerning the new drug, if it is safe and effective in people.
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How are birds adapted ?
Answer:
Flight is birds' most important adaptation. It takes them into an environment that most other animals can't reach the air.
Their lives depend upon this special skill. It allows them to catch food, avoid enemies, find each other and travel huge distances in super-quick time.
Give one example of how weathering by wind could occur in nature.
Answer:
Wind and water cause small pieces of rock to break off at the side of a mountain. ... Example of erosion: Wind carries small pieces of rock away from the side of a mountain.
what is basic ?
plzz answer
Answer: of, relating to, or forming the base or essence : fundamental basic truths. b : concerned with fundamental scientific principles
Explanation:
In the nucleus, _______ tell cells what to do and how to change.
Answer: genetic material or DNA
Explanation
The genetic material of the nucleus is like a set of instructions.These instructions tell the cell how to build molecules needed for the cell to function properly. That is, the DNA tells the cell how to build molecules needed for life.Name the types of fats found in foods?
Answer:
Saturated fats, trans fats, monounsaturated fats, and polyunsaturated fats.
Explanation:
Answer:
The types of fats found in foods are saturated, polyunsaturated, monounsaturated, and trans fats.
One example of scientists taking different approaches that lead to the same result is
two scientists testing different hypotheses about the same question.
two scientists repeating a third scientist’s experiment as published.
two scientists working on one experiment at the same time in different labs.
two scientists performing one experiment at different times in the same lab.
Answer:
Could have Just said its A
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Explanation:
Construct an argument to support a claim about the relative advantages and disadvantages of sexual and asexual reproduction.
Answer:
sexual disadvantages- dangureos, slow, no variation, Asexual Advantages- fast easy safe adaptation
Explanation:
1.Write whether the genes in these groups of cells are the 'same' or 'different'.
a) A mother's body cells .
b )The cells in a brother and sister
c) A mother's egg cells
d) A father's sperm cells
e)Each fertilised egg a man and woman produce
f) The cells in a growing embryo
Which of the following structures in the human body has the highest level of organization?
atoms
OOOO
tissue
cells
organ systems
Answer:
Organ Systems
Explanation:
in level of organization, its arrange in these order
cells-tissues-organs-organ systems
20 point multiple choice
Throughout her career as a marine biologist, in which position would Angie have the most responsibility? A. as a research intern during college B. as a lab assistant in her first job after college C. as a biology teacher at a high school D. as the head of the biology department at a university
Answer:
yes it is D hope this helps
During her career as a marine biologist, the head of the biology department at a university has the most responsibility, hence option D is correct.
What are the responsibilities of a marine biologist?Marine scientists conduct research on the ocean and examine how its animals, sea floors, coastal regions, and atmosphere interact with it.
Establishing new research theories from laboratory sample analysis. Maps of the distribution, ranges, or movements of marine populations are also preserved, along with specimens and samples of unknown species and diseases.
Therefore, marine biologists are employed by state and federal government agencies and organizations. At private research institutes or universities, one can find marine biologists who are not employed by the government.
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