1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
photoshop1234 [79]
3 years ago
6

(14 point!!!!) HOW AND WHY HAS THE SCORPION CHANGED!

Biology
1 answer:
sweet [91]3 years ago
3 0
I dk the answer but shawty ur segzy asfff /j <3333333
You might be interested in
How many eggs are released during ovulation?
FrozenT [24]
4, but only one makes it, the rest are called polar bodies.
5 0
3 years ago
Read 2 more answers
Include an explanation of how light, Carbon dioxide, and Chlorophyll are relevant
kotykmax [81]

Answer:

Photosynthesis is a process used by plants and other organisms to convert light energy into chemical energy that can later be released to fuel the organisms' activities. This chemical energy is stored in carbohydrate molecules, such as sugars, which are synthesized from carbon dioxide and water – hence the name photosynthesis, from the Greek phōs , "light", and sunthesis, "putting together". In most cases, oxygen is also released as a waste product. Most plants, most algae, and cyanobacteria perform photosynthesis; such organisms are called photoautotrophs. Photosynthesis is largely responsible for producing and maintaining the oxygen content of the Earth's atmosphere, and supplies most of the energy necessary for life on Earth.

Schematic of photosynthesis in plants. The carbohydrates produced are stored in or used by the plant.

Overall equation for the type of photosynthesis that occurs in plants

Composite image showing the global distribution of photosynthesis, including both oceanic phytoplankton and terrestrial vegetation. Dark red and blue-green indicate regions of high photosynthetic activity in the ocean and on land, respectively.

Although photosynthesis is performed differently by different species, the process always begins when energy from light is absorbed by proteins called reaction centres that contain green chlorophyll pigments. In plants, these proteins are held inside organelles called chloroplasts, which are most abundant in leaf cells, while in bacteria they are embedded in the plasma membrane. In these light-dependent reactions, some energy is used to strip electrons from suitable substances, such as water, producing oxygen gas. The hydrogen freed by the splitting of water is used in the creation of two further compounds that serve as short-term stores of energy, enabling its transfer to drive other reactions: these compounds are reduced nicotinamide adenine dinucleotide phosphate (NADPH) and adenosine triphosphate (ATP), the "energy currency" of cells.

In plants, algae and cyanobacteria, long-term energy storage in the form of sugars is produced by a subsequent sequence of light-independent reactions called the Calvin cycle; some bacteria use different mechanisms, such as the reverse Krebs cycle, to achieve the same end. In the Calvin cycle, atmospheric carbon dioxide is incorporated into already existing organic carbon compounds, such as ribulose bisphosphate (RuBP). Using the ATP and NADPH produced by the light-dependent reactions, the resulting compounds are then reduced and removed to form further carbohydrates, such as glucose.

The first photosynthetic organisms probably evolved early in the evolutionary history of life and most likely used reducing agents such as hydrogen or hydrogen sulfide, rather than water, as sources of electrons. Cyanobacteria appeared later; the excess oxygen they produced contributed directly to the oxygenation of the Earth, which rendered the evolution of complex life possible. Today, the average rate of energy capture by photosynthesis globally is approximately 130 terawatts, which is about eight times the current power consumption of human civilization. Photosynthetic organisms also convert around 100–115 billion tons (91–104 petagrams) of carbon into biomass per year.

The fact that plants receive some energy from light—in addition to air, soil, and water—was discovered in 1779 by Jan Ingenhousz.

3 0
3 years ago
Is the angle of the suns rays higher in summer or the winter?
weeeeeb [17]

Answer: The rays of the summer sun, high in the sky, arrive at a steep angle and heat the land much more than those of the winter sun, which hit at a shallow angle. Although the length of the day is an important factor in explaining why summers are hot and winter cold, the angle of sunlight is probably more important.

HOPE IT HELPS YOU

HAVE A GOOD DAY ☺️❤️

6 0
3 years ago
Read 2 more answers
What is the purpose of a checkpoint in the cell cycle?.
Nadya [2.5K]

Answer:

Cell cycle checkpoints are surveillance mechanisms that monitor the order, integrity, and fidelity of the major events of the cell cycle. These include growth to the appropriate cell size, the replication and integrity of the chromosomes, and their accurate segregation at mitosis.

6 0
3 years ago
Que relaciones existe entre los iones de sodio y potasio y trasporte activo<br>porfa ayudenmeee
olga nikolaevna [1]

Answer:

Transporte activo, El Transporte pasivo es una gran estrategia para el movimiento de que la célula debe hacer es quedarse allí y dejar que las Moléculas se difundan a su interior. Por ejemplo, supongamos que tenemos una alta concentración de iones y sodio en el espacio extracelular(gracias al gran esfuerzo de la bomba sodio-potasio).

3 0
3 years ago
Other questions:
  • What is the definition of a stem and leaf plot in math?
    15·1 answer
  • List as many effects of bacteria as you can. It can be either positive and negative.
    5·1 answer
  • What type of front forms when the surface position of the front does not move?
    7·1 answer
  • Salt water. Is mainly used in mining, is only found in oceans, covers less than 50 % of the earth or can be desalinated and used
    5·2 answers
  • 1. If a pea plant’s alleles for height are tt, what is true of its parents?
    9·1 answer
  • What is the name for the rocky upper layer of the solid earth? A. biosphere B. magnetosphere C. atmosphere D. lithosphere
    13·2 answers
  • Breathing rate and pulse rate indirectly measure cellular
    14·1 answer
  • 8. Draw a diagram of the Nitrogen cycle using the words in the text box.
    14·1 answer
  • ANYONE FROM K12 KNOW THE ANSWERS TO THIS PART OF THE 3.25 MITOSIS LAB??? I NEED HELP (no links)
    9·1 answer
  • A change in the base pairs is called a what?​
    10·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!