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RideAnS [48]
3 years ago
15

Marissa is adding numbers in her head. Which part of her brain is she using?

Biology
1 answer:
vfiekz [6]3 years ago
3 0

Answer: Cerebrum

Explanation: The cerebrum is the part of the brain that we use for thinking, judgement, and imagination. The Cerebrum makes up the largest part of the brain.

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A certain machine can output 50 Joules (J) of energy when 100 J of energy are input. If the amount of friction experienced by th
Dmitriy789 [7]

Explanation:

D) 75 J

Energy is neither related nor destroyed- it's simply converted to different forms. Forces are vectors with both mass and acceleration; they are interactions that have the ability to change an object's motion. As objects move, their potential energy (apprx 100 J) is converted to kinetic energy. However, friction a resistive force, which is formed from the conversion of an object's kinetic energy into heat energy, as two surfaces move along each other.

With the reduction of friction, the energy output should increase, as less energy is lost as heat. Thus, the output should be 75 J.

Learn more about energy flow at brainly.com/question/6966886

#LearnWithBrainly

4 0
3 years ago
Which line best represents the level of oxygen gas in the atmosphere during the Proterozoic?
katrin2010 [14]

Explanation:

C- this line shows a gradual increase

Just before the Cambrian explosion, the atmosphere became oxygenated, leading to an explosion of new life in the form of primative blue green algae called cyanobacteria and oxygen dependent organisms in the Proteozoic Eon (2500-541 million years ago). Later, multicellular organisms followed, along with higher levels organization and complex life. Oxygen levels rose from low levels, steadily over this period of time.

Further Explanation:

The rise in O2 gas within the aquatic habitat and atmosphere is attributed to photosynthesis in cyanobacteria which allowed respiring eukaryotes to thrive.

Photosynthesizing cells in blue green algae contain chlorophyll, a specialized compound which facilitates the conversion of light energy to energy stored in carbohydrates in the process photosynthesis. This is a chemical pathway that’s integral to producing energy in primary producers. Energy in the form of molecules of glucose is produced from light, water and carbon dioxide while oxygen is released. This occurs in several complex steps, photosynthesis is a rate limited reaction, depends on several factors including carbon dioxide concentration, ambient temperature and light intensity; the energy is retrieved from photons, I.e. particles of light, and water is used as a reducing agent.

With the evolution of oxygen dependent organisms like Ediacara biota, came respiration in the mitochondria. Eukaryotes utilize glucose along with oxygen for the production of ATP in the Krebs’s cycle via the oxidization of pyruvate( through the process of glycolysis). Oxidative phosphorylation describes a process in which the NADH and FADH2 made in previous steps of respiration process give up electrons in the electron transport chain these are converted it to their previous forms, NADH+ and FAD. Electrons continue to move down the chain and the energy they release is used in pumping H+ to produce ATP from ATP synthase. At the end of the ETC molecules of oxygen accept electrons and protons to form molecules of water.

Learn more about Photosynthesis at brainly.com/question/4216541

Learn more about cellular life brainly.com/question/11259903

Learn more about cellular respiration at brainly.com/question/11203046

#LearnWithBrainly

5 0
3 years ago
Why are bacteria needed in the nitrogen cycle?
iragen [17]

Answer:

Bacteria help the nitrogen change between states.

Explanation:

When nitrogen is absorbed, bacteria helps change its state so it can be absorbed by different organisms.

6 0
2 years ago
Read 2 more answers
Which of the following best describes the amount of catalyst that remains at the end of a reaction
inn [45]

The catalyst is consumed by the reaction, so none remains at the end of the reaction, good luck

8 0
3 years ago
Which statement explains how producers are dependent upon consumers for their survival?
Marta_Voda [28]

Answer: it's c

Explanation:

3 0
3 years ago
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