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erica [24]
3 years ago
10

Francois Jacob and Jacques Monod studied Escherichia coli (E. coli) bacteria by using lab experimentation. What revision to thei

r initial hypothesis did they come up with?
Biology
1 answer:
den301095 [7]3 years ago
5 0

Answer:The answer is two operons control bacterial respiration

Explanation:

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Put the following actions in order: DNA replicates, cell grows, cell divides,
Mumz [18]

Answer:

cell grows, DNA replicates, cell prepares for mitosis, cell divides

3 0
2 years ago
Fossils of ancient polar plants are currently found near the equator because the ________. A. entire earth had polar conditions
professor190 [17]
<h2>Answer is option "B"</h2>

Explanation:

  • Fossils are formed by unusal ways of minerals,energy and other substances. the sap solidifies and frames the semiprecious material called golden. In certain bits of golden the buried survives from living beings can be found. Volcanic ejections can shape fossils when creatures get caught in the hot debris streams. Right now, the fossil is a hole looking like an animal.
  • Truth be told coal is the fossil record of entire timberlands; in any case, singular plant structures normally don't make due as the plant materials are compacted to short of what one-hundredth of their unique size. the hard part of plants are remain the fossil.
  • So as to get fossilized, creatures must kick the bucket in a watery situation and become covered in the mud and residue.
  • hence, the right answer is option B "Plant lived near the poles,but landmasses have drifted to current locations".

6 0
3 years ago
The presence of which of the following could be used to distinguish between prokaryotic and eukaryotic cells?
alina1380 [7]

Answer:

The answer is mitochondria that the difference between the prokaryotes and eukaryotes

Explanation:

7 0
2 years ago
Living things need energy<br> Your essay need to include;<br> producer<br> consumer<br> decomposer
aev [14]

Answer/Explanation:

<h3>∴ ║ Living Things Need Energy ║∴</h3>

The ability to obtain and use energy is one of the eight characteristics of all living things.  Scientists classify organisms based on how they get their energy: autotrophs or heterotrophs.  Organisms are divided into three main groups- the producers, the consumers and the decomposers.  

Producers get their energy from abiotic factors (non-living sources).  Most producers are plants and get their energy directly from the sun using a process called photosynthesis.  There are also some bacteria that can make their own food from chemicals using a process call chemosynthesis.  Examples of common producers are grasses, trees and flowers.  Algae (which are protists, not plants) are the main producers in aquatic ecosystems. Remember we call these autotrophs because they can make their own food.  

Consumers cannot make their own food.  Instead, they get their energy by eating other organisms.  These are also called heterotrophs.  There are many types of consumers.  Herbivores, such as grasshoppers and prairie dogs, only eat producers.  Carnivores eat animals.  Coyotes, badgers, and falcons are all carnivores.  Organisms that eat both producers and other consumers are known as omnivores.  Most humans are omnivores.  Scavengers are a special type of omnivore.  They eat dead plants and animals.  Vultures and many insects are common scavengers.  

Decomposers are a very special type of heterotroph because they get energy by breaking down dead or dying organisms.  Bacteria and fungi (mushrooms, molds and mildews) are examples of decomposers.  Decomposers are important to ecosystems because they return important nutrients such as water, carbon dioxide and nitrogen to the soil.  Plants then use these nutrients to grow, creating a cycle of nutrients through the ecosystem.        

Each of these organisms depends on the others.  Producers get energy from the sun or chemicals and then give some of this energy to consumers.  The consumers then give some of their energy to the decomposers.  Together, these organisms form a food chain.  A food chain is a series of events in which food energy is transferred from one organism to another.   All food chains have the basic structure of producer  ⇒ primary consumer  ⇒ secondary consumer ⇒ tertiary consumer  ⇒ decomposer.  There are many overlapping food chains in an ecosystem.  These overlapping food chains are known as a food web.  

As energy passes from level to the level in a food chain within a food web, the amount that each organism receives decreases.  For example, in a grassland ecosystem, the grasses get energy needed for life from the sun.  Some of this energy is used by the grass to grow and reproduce.  When a prairie dog eats the grass, it only gets 10% of the energy the grass originally had.  The prairie dog then uses some of the energy from the grass to grow and reproduce.  When a coyote eats the prairie dog, it only gets 10% of the energy the prairie dog originally had.  This decrease in energy at each level of the food chain can be represented by an energy pyramid.

<em>~Learn with Lenvy~</em>

3 0
2 years ago
Read 2 more answers
Where fibers from right and left optic nerves decussate to the opposite (left or right) optic tract?
Andreas93 [3]
<span>This is the optic chiasm, where the nerves emanating from the eyes cross over to the opposite hemisphere of the brain. This part of the visual system allows for binocular vision, as both hemispheres of the brain receive visual signals from both eyes. This aids in coordination and the ability to see and judge depth.</span>
3 0
2 years ago
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