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3 years ago

Which if these best describes a climax community? HELP IT'S FOR A TEST I DON'T HAVE MUCH TIME!!!

Biology

1 answer:

LenKa [72]3 years ago

8 0

The key point in a climax community is a population in equilibrium, or balance, with respect to both biotic and abiotic factors. The second answer choice would best describe such a community.

The other choices contain words that suggest a state of disequilibrium (“growing,” “booming population,” “decreasing population”).

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Dandelions (Wild Flowers) is an example of what type of Population distribution? .

Sliva [168]

Answer: random distribution

Explanation:

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2 years ago

27. What is the major reactant needed for the Citric Acid Cycle (aka Krebs Cycle)?

sp2606 [1]

Answer: b. Acetyl Co-A

Explanation:

Acetyl CoA produced through pyruvate, amino acids, and fatty acids are oxidized in the Krebs cycle in CO2, obtaining as products NADH, FADH2 and GTP (ATP). Parallel to this oxidation, the Krebs cycle produces compounds used as precursors for biosynthesis. As it is a cycle, an oxaloacetate molecule could, in principle, oxidize an amount indefinite of acetyl CoA. Acetyl-CoA is formed from the oxidative decarboxylation of pyruvate, sequentially performed by pyruvate dehydrogenase -PDH (complex multi enzymatic of 3 enzymes), in the mitochondrial matrix.

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3 years ago

The fossil record indicates that the earliest hominids most likely originated on which continent?

Brums [2.3K]

The fossil record indicates that the earliest hominids most likely originated in "Africa," since this is the location from which humans eventually migrated to other locations.

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3 years ago

What are convergent boundaries?

boyakko [2]

Answer:

Explanation:

A convergent boundary (also known as a destructive boundary) is an area on Earth where two or more lithospheric plates collide. One plate eventually slides beneath the other, a process known as subduction. The subduction zone can be defined by a plane where many earthquakes occur, called the Wadati–Benioff zone.[1] These collisions happen on scales of millions to tens of millions of years and can lead to volcanism, earthquakes, orogenesis, destruction of lithosphere, and deformation. Convergent boundaries occur between oceanic-oceanic lithosphere, oceanic-continental lithosphere, and continental-continental lithosphere. The geologic features related to convergent boundaries vary depending on crust types.

Plate tectonics is driven by convection cells in the mantle. Convection cells are the result of heat generated by radioactive decay of elements in the mantle escaping to the surface and the return of cool materials from the surface to the mantle.[2] These convection cells bring hot mantle material to the surface along spreading centers creating new crust. As this new crust is pushed away from the spreading center by the formation of newer crust, it cools, thins, and becomes denser. Subduction begins when this dense crust converges with less dense crust. The force of gravity helps drive the subducting slab into the mantle.[3] As the relatively cool subducting slab sinks deeper into the mantle, it is heated, causing hydrous minerals to break down. This releases water into the hotter asthenosphere, which leads to partial melting of asthenosphere and volcanism. Both dehydration and partial melting occurs along the 1,000 °C (1,830 °F) isotherm, generally at depths of 65 to 130 km (40 to 81 mi).[4][5]

Some lithospheric plates consist of both continental and oceanic lithosphere. In some instances, initial convergence with another plate will destroy oceanic lithosphere, leading to convergence of two continental plates. Neither continental plate will subduct. It is likely that the plate may break along the boundary of continental and oceanic crust. Seismic tomography reveals pieces of lithosphere that have broken off during convergence

3 0

2 years ago

Read 2 more answers

Describe in a few sentences each the following eating disorders: anorexia, bulimia, binge eating, bigorexia, and exercise compul

ad-work [718]

Answer:

Anorexia : Condition which occurs due to very low weight of body due to the fear of gaining weight.

Bulimia: Bulimia nervosa can be described as a condition in which there is binge eating by the person first which is followed up by purging.

Bigorexia: Bigorexia can easily be described as the reverse of anorexia.

Drunkorexia: A condition in which there is binge or purge eating due to the intake of alcohol.

Exercise compulsion : A condition in which a person does excessive exercise.

Binge eating: It is a condition in which a person does excessive over eating without feeling the need to stop.

Explanation:

Anorexia: Anorexia Nervosa, which is also termed as anorexia, can be a psychological disorder in which the person becomes life threatening from the fear of getting fat. As a result, they get an extremely low body weight.

Bulimia: Bulimia, also termed as Bulimia Nervosa, is a condition in which a person does over eating i.e binge of an eating first and then tries to compensate it with any kind of purging activity. The purging activity could be any activity which he tries to do so that he can get rid of the excessive food taken.

Bigorexia: Bigorexia, also termed as Muscle Dysmorphia, is a condition in which the person thinks that he/she is very skinny or under weight when in real he/she is normal or usually over weight.

Drunkorexia : Drunkorexia is a condition in which a person has abnormal eating patterns trying to compensate for the large amount of alcohol that he/she has consumed.

Exercise compulsion : Exercise compulsion is a disorder in which a person focuses only on exercising ignoring the daily activities or any injuries that he/she might have acquired.

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3 years ago

Read 2 more answers