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Oliga [24]
3 years ago
5

Natural gas is very abundant in the United States. Compared to other fossil fuels, which describes the waste products of the com

bustion of natural gas?
Biology
1 answer:
KiRa [710]3 years ago
4 0
Composed primarily of methane, the main products of the combustion of natural gas are carbon dioxide and water.
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PLEASE HELP ONLY 2 I CANT GET
ehidna [41]
1.) B it is not d because it shows a growth in the beak size, it didn't say anything about the birds having larger beaks just that the size increased
2.) A

p=.5 q=.5
q^2=.25 p^2= .25 2(pq)= .5  everything added up is 1.0 so we good

so q^2, which is the recessive gene or gg, is 25 percent
6 0
3 years ago
Que características poseen los babuinos que no poseen los Lemures
Vedmedyk [2.9K]

Answer:

Opposing thumbs, expressive faces, complex social systems: it's hard to miss the similarities between apes and humans. Now a new study with a troop of zoo baboons and lots of peanuts shows that a less obvious trait -- the ability to understand numbers -- also is shared by humans and their primate cousins.

"The human capacity for complex symbolic math is clearly unique to our species," says co-author Jessica Cantlon, assistant professor of brain and cognitive sciences at the University of Rochester. "But where did this numeric prowess come from? In this study we've shown that non-human primates also possess basic quantitative abilities. In fact, non-human primates can be as accurate at discriminating between different quantities as a human child."

"This tells us that non-human primates have in common with humans a fundamental ability to make approximate quantity judgments," says Cantlon. "Humans build on this talent by learning number words and developing a linguistic system of numbers, but in the absence of language and counting, complex math abilities do still exist."

Cantlon, her research assistant Allison Barnard, postdoctoral fellow Kelly Hughes, and other colleagues at the University of Rochester and the Seneca Park Zoo in Rochester, N.Y., reported their findings online May 2 in the open-access journal Frontiers in Comparative Psychology. The study tracked eight olive baboons, ages 4 to 14, in 54 separate trials of guess-which-cup-has-the-most-treats. Researchers placed one to eight peanuts into each of two cups, varying the numbers in each container. The baboons received all the peanuts in the cup they chose, whether it was the cup with the most goodies or not. The baboons guessed the larger quantity roughly 75 percent of the time on easy pairs when the relative difference between the quantities was large, for example two versus seven. But when the ratios were more difficult to discriminate, say six versus seven, their accuracy fell to 55 percent.

That pattern, argue the authors, helps to resolve a standing question about how animals understand quantity. Scientists have speculated that animals may use two different systems for evaluating numbers: one based on keeping track of discrete objects -- a skill known to be limited to about three items at a time -- and a second approach based on comparing the approximate differences between counts.

Explanation:

4 0
2 years ago
The plant kingdom is divided into 2 groups vascular and nonvascular. describe each subclass. include key words such as vascular
BaLLatris [955]
<h2>Vascular and Nonvascular Plants </h2>

Explanation:

Kingdom Plantae on the basis of vasculature is divided into two groups-vascular and non-vascular plants .

  • <u>Vascular plants </u>or tracheophytes have a proper tissue-level organization and true shoot and root structures like leaves, stem, flowers, root etc
  • The tissue system or vasculature of vascular plants compromises of vascular tissues like tubular vessels – xylem and phloem
  1. The xylem transports nutrients to various parts of the body from the leaves.
  2. Phloem conducts water and other nutrients from the roots to various parts of the plant .
  • These are flowering plants that include the phanerogams – angiosperms and gymnosperms and bears flowers and fruits like the cedars, pine, clubmosses, lilies, sunflower etc.
  • Dicots are with tubular vasculature.  
  • Non-vascular plants or bryophytes with an absence of proper tissue-level organization and true shoot or root systems
  • <u>Nonvascular plants</u> are small. Their transport mechanism is poor due to lack of vascular tissues
  • These plants are lack proper shoot or root system.
  • It includes mosses, hornworts etc.
  • Monocots are plants with scattered tube-like vessels .
3 0
3 years ago
What's the difference between human skin and the cell membrane
Hatshy [7]

Answer: Read explanation

Explanation: there’s actually no similarity at all. A cell membrane is made of phospholipids, globular proteins, glycolipids, glycoproteins, and cholesterol, and has passages that serve explicitly for passive and active transport of materials through it.

The skin is made of cells and dead keratin and serves as much as possible to prevent most substances from moving through it. It’s “designed” for toughness and distensibility, not for selective permeability.

All in all, the difference is that a cell membrane is explicitly and only for the passing and transport of materials through it, and the skin in the skin is made to be tough and durable, almost the opposite of a cell membrane.

7 0
2 years ago
Read 2 more answers
genetics and the environment both play roles in cell differentiation. which is the best example of an environmental factor influ
In-s [12.5K]

Answer: etiolation of plant growth in shade, with fast growing cell without chloroplasts. Out of shade, cell differentiate again to produce photosynthesising cells

Explanation: It is a subjective decision as to what is ‘best’. Good examples are plant responses to changes in the nutrient supply.

when soil nitrogen is depleted some plants, such as legumes, grow nodules on their roots, with cells that release chemical signals to attract nitogen fixing bacteria.

Lack of light induces etiolation in many plants. New cells elongate and develop without chloroplasts, with rapid cell division exhibiting gravitropism, extending upward. When they grow beyond the shade area, cell differentiation changes again, to produce photosynthesising cells.

7 0
3 years ago
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