Physics, 09.01.2021 20:40 catzilla

Read the selection from the section "Cells Carry Information To The Next Generation." In the 1880s, Walter Sutton and Theodor Boveri identified the chromosome as being responsible for passing down genes from one generation to the next. The discovery forever linked genetics and cytology. Later discoveries further confirmed and solidified the role of the cell in passing characteristics down from one generation to another. One famous example is James Watson and Francis Crick's studies on the structure of DNA. What conclusion is BEST supported by the selection above?

A) Scientists needed much better microscopes in order to discover how genes and cells are related.
B) Scientists needed to find out how cells performed in order to fully understand genetics.

C) Scientists in the 1880s made the most important discoveries in cell research in modern history.

D) Scientists in the 1880s completely reversed all previous understandings about genetics.

Answers: 3

Show answers

Answers

The best conclusion that can be arrived at from the passage is that; "Scientists in the 1880s made the most important discoveries in cell research in modern history."

The cell is the smallest unit of an organism that has independent existence. Genetics has to do with the study of the patterns of inheritance in organisms. The scientific research in the 1880s laid a firm foundation for genetics.

Hence, the conclusion that is best supported by the text is that; "Scientists in the 1880s made the most important discoveries in cell research in modern history."

Learn more about genetics: link

Answer from: Quest

force is based upon mass and acceleration.the statement is not always true.

it can be explained from newton's second law of motion.

as per newton's second law of motion the rate of change of momentum is directly proportional to the applied force and takes place along the direction of force.

mathematically it can be written as -

$f\alpha \frac{dp}{dt}$

⇒ $f= k \frac{dp}{dt}$

here k is the proportionality constant whose value is 1.

$f=\frac{dp}{dt}$

$f= \frac{d[mv]}{dt}$

$f= m\frac{dv}{dt} +v\frac{dm}{dt}$

$f=ma+v\frac{dm}{dt}$ [a is the acceleration=dv/dt]

hence we see that force not only depends on mass and acceleration but also on velocity and rate of change of mass. force f will depend on mass and acceleration only when mass is constant.

hence the statement that force is based upon mass and acceleration is false.

Answer from: Quest

Hahahah jsu’s hsjshshsh. shjshshshsh.

Other questions on the subject: Physics

Physics, 22.06.2019 03:50, gogo16732

Three different objects, all with different masses, are initially at rest at the bottom of a set of steps. each step is of uniform height . the mass of each object is a multiple of the base mass : object 1 has mass 4..00m , object 2 has mass 1..96m , and object 3 has mass . when the objects are at the bottom of the steps, define the total gravitational potential energy of the three-object system to be zero. if the objects are then relocated as shown, what is the new total potential energy of the system? each answer requires the numerical coefficient to an algebraic expression. each algebraic expression is given using some combination of the variables , , and , where is the acceleration due to gravity. enter only the numerical coefficient. (example: if the answer is 1..23mgd , just enter 1.23)

Answers: 3

continue

Physics, 22.06.2019 09:30, smiley29162

Gasoline comes from petroleum, which is made from ancient living things. petroleum, therefore, contains a type of energy. a. heat b. nuclear c. biological d. chemical potential

Answers: 2

continue

Physics, 22.06.2019 09:40, alyssa32900

(a) assume the equation x = at^3 + bt describes the motion of a particular object, with x having the dimension of length and t having the dimension of time. determine the dimensions of the constants a and b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.) (b) determine the dimensions of the derivative dx/dt = 3at^2 + b. (use the following as necessary: l and t, where l is the unit of length and t is the unit of time.)

Answers: 1

continue

Physics, 22.06.2019 12:50, natalyarenassalgado

Arunner is jogging at a steady 3.6 km/hr. when the runner is 2.9 km from the finish line, a bird begins flying from the runner to the finish line at 14.4 km/hr (4 times as fast as the runner). when the bird reaches the finish line, it turns around and flies back to the runner. even though the bird is a dodo, we will assume that it occupies only one point in space, i. e., a zero-length bird. how far does the bird travel? (b) after this first encounter, the bird then turns around and flies from the runner back to the finish line, turns around again and flies back to the runner. the bird repeats the back and forth trips until the runner reaches the finish line. how far does the bird travel from the beginning? (i. e. include the distance traveled to the first encounter)

Answers: 2

continue

You know the right answer?

Read the selection from the section "Cells Carry Information To The Next Generation." In the 1880s,...