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Alex_Xolod [135]
3 years ago
9

Please help :)

Biology
2 answers:
Setler [38]3 years ago
6 0
A: Scientific knowledge can be revised with time.
Alex787 [66]3 years ago
3 0

Answer:

The correct answer is scientific knowledge can be revised with time.

Explanation:

The kingdom classification system is a system of classifying organism based on their similar and distinctive characters.

Linnaeus divided the nature into three kingdoms-animal, plants and mineral kingdom but this kingdom showed no relationship among them.

This classification system has kept on changing with the advancement in science and addition of new information to the science like Ernst Haeckel in 1866 proposed third kingdom of life called Protista which with the development in microscopy got changed again by Copeland as he proposed a fourth kingdom system called Monera. In 1969, Robert Whittaker proposed a fifth kingdom called Fungi which again with the advancement in molecular studies got changed by Carl Woese in 1970 as he divided the prokaryotes in Eubacteria and Archaeobacteria.  

This shows that scientific knowledge expands and  changes with time with the advancement in technology and ideas which lead to the changes in the existing information so has to be revised.

Thus, scientific knowledge can be revised with time is the correct answer.

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Select the most accurate statement describing the basic function of the light reactions of photosynthesis. Select the most accur
S_A_V [24]

Answer:

The basic function of the light reactions of photosynthesis is the conversion of solar energy to chemical energy.

Explanation:

In photosynthesis, the light energy is captured by chlorophyll pigment which is present in the thylakoid membrane. Then this light energy is used split water which releases the electron that enters the electron transport chain. Then electrons move through several electron carriers and helps to generates NADPH and ATP.  

These NADPH and ATP are used in the Calvin cycle to fix the carbon into carbohydrates like glucose. Glucose molecules is then used by the plant to get energy source and to make structural components like cell wall. Therefore during photosynthesis solar energy is converted into chemical energy like glucose.

5 0
3 years ago
PLEASE HELP!! ILL GIVE BRAINLIEST :((!!
melisa1 [442]
Reflecting telescopes
Telescopes that use lenses are called refracting telescopes. The other type uses mirrors to focus the light of the image. These telescopes are called reflecting telescopes. Refracting telescopes use lenses to bend the light to a specific focal point such that the object will be magnified to the viewer.

light microscope
Optical instruments are based on optics. They use mirrors and lenses to reflect and refract light and form images. The light microscope and telescope use convex lenses and mirrors to make enlarged images of very tiny or distant objects. A camera uses a convex lens to make a reduced image of an object.

Refracting telescopes use lenses to focus the light, and reflecting telescopes use mirrors. I'll talk first about refracting ones. Refracting telescopes work by using two lenses to focus the light and make it look like the object is closer to you than it really is. Both lenses are in a shape that's called 'convex'.

the reflector telescope uses a mirror to gather and focus light. All celestial objects (including those in our solar system) are so far away that all of the light rays coming from them reach the Earth as parallel rays. Because the light rays are parallel to each other, the reflector telescope's mirror has a parabolic shape. The parabolic-shaped mirror focusses the parallel lights rays to a single point. All modern research telescopes and large amateur ones are of the reflector type because of its advantages over the refractor telescope.

Advantages

Reflector telescopes do not suffer from chromatic aberration because all wavelengths will reflect off the mirror in the same way.
Support for the objective mirror is all along the back side so they can be made very BIG!
Reflector telescopes are cheaper to make than refractors of the same size.
Because light is reflecting off the objective, rather than passing through it, only one side of the reflector telescope's objective needs to be perfect.

Disadvantages

It is easy to get the optics out of alignment.
A reflector telescope's tube is open to the outside and the optics need frequent cleaning.
Often a secondary mirror is used to redirect the light into a more convenient viewing spot. The secondary mirror and its supports can produce diffraction effects: bright objects have spikes (the ``christmas star effect'').

hope this helped!




4 0
2 years ago
Which two body systems allow humans to carry out the same life process as the ameba in the diagram
11111nata11111 [884]

Answer:

The best answer would be C.

Explanation:

8 0
2 years ago
In which cycle do we rely on bacteria
bekas [8.4K]

Answer:

nitrogen cycle

Explanation:

Nitrogen enters the living world by way of bacteria and other single-celled prokaryotes, which convert atmospheric nitrogen— N 2 \text N_2 N2​start text, N, end text, start subscript, 2, end subscript—into biologically usable forms in a process called nitrogen fixation.

4 0
3 years ago
Read 2 more answers
POPULATION AGE STRUCTURE summary Will reward
Vaselesa [24]

The population age structure is is simply the structure of a population in a given time period by age groups. In order to represent the population age structure in a simple and efficient way, the population pyramid is used. Depending of what type of population is dominant, the pyramid will have different shapes. It can easily show us the trends and type of demographic transition for a particular population. When there high birthrates, the pyramid tends to be widest at the bottom, but when there's low birthrates the pyramid tends to be widening in the middle and upper sections.

4 0
3 years ago
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