Explanation:
Terms in this set (5)
carbon is abundant, common.
forms strong covalent bonds.
has four valence electrons.
variety of shapes.
bonds with multiple elements
Answer:
- Covalent bonding
- Generally in non-electrolytes
- Low melting point
- Forms a variety of compounds
Explanation:
Edge 2021
Which of the following is NOT a
piece of evidence that Darwin
used to support his theory of
evolution?
A. fossil record
B. similarities among different species
C. the amount of shared DNA between species
Fossil record is not a piece of evidence that Darwin used to support his theory of evolution.
What is the theory of evolution?Evolution is the process of change in all forms of life over generations, and evolutionary biology is the study of how evolution occurs. Biological populations evolve through genetic changes that correspond to changes in the organisms' observable traits.
Darwin proposed that species can change over time, that new species come from pre-existing species, and that all species share a common ancestor. In this model, each species has its own unique set of heritable (genetic) differences from the common ancestor.
The current evolutionary theories can be categorized as Darwinism and Lamarckism. Charles Darwin theorized Darwinism. He explained his theory of natural selection in his book, On the Origin of Species.
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Answer:A.fossil record
Explanation:
The movement of water across a membrane does not require a concentration gradient.
A. True
B. False
Answer:
false
Explanation:
because it is osmosis any liquid (water) can move through the membrane withought energy
Answer:
False
Explanation:
Use Darwin's theory of Natural Selection to explain the process by which the four-legged land animal, A, may have evolved, over about 20 million years, from the fish-like creature, C, in the swampy conditions of the time.
Answer:
Due to environmental conditions.
Explanation:
With the passage of time, environmental conditions change which causes the evolution of of four legged land animals from fish like creature. This change occurs due to change in environment. In water, there is no need for legs because fish moves with the help of fins and tail but the organisms that lives on land has legs in order to move from one place to another so we can say that change in the physical structure of organism occurs due to environment.
WITH SPECIFIC EXAMPLES, BRIEFLY DESCRIBE HOW FOOD CHAIN IS RELATED TO FOOD WEEB. Help please
Answer:
A food chain outlines who eats whom. A food web is all of the food chains in an ecosystem.
Explanation:
Each organism in an ecosystem occupies a specific trophic level or position in the food chain or web.
What is an organism made of one cell called
Answer:
Unicellular organisms
Explanation:
How do wales differ from fish
Answer:
Whales are mammals that need air from the sea's surface to survive. Whales are capable of giving birth to live young. Fish have gills and use them to draw oxygen from the water. The majority of fish lay eggs. Whales and other marine animals with horizontal tail fins, such as dolphins, have vertical tail fins, while fish have vertical tail fins.
hope this helped!
Which planet has a longer day than year?
OVenus
O Neptune
O Earth
Answer:
VENUS
Explanation:
On Venus, one rotation on its axis takes the equivalent of 243 Earth days and the planet's orbit around the Sun takes the equivalent of 225 Earth days.
Answer:
Venus, I think
Explanation:
So outta these three, Venus is the closest to the sun, so the year is the shortest. Venus is also the planet with the longest day averaging at 116d 18h, so I think that's the right one. Sorry if this is wrong
hope this helps:|
helppppppppppppp im stuck
Answer:
Ecosystem
Explanation:
Ecosystems are the largest organizational level found in one coral reef
The development of this new BLG-free, hypoallergenic milk is based on a science that came to the forefront 150 years ago. What scientist's work provided the basis for such feats in biotechnology?
Answer: Mendel and genetics
Explanation:
Which of the layers has the most interaction with the other spheres of Earth?
Mantle
Inner Core
Crust
Outer Core
Answer:
Crust
Explanation:
Crust has the most interaction with the other spheres of Earth.
can someone help me with this please
Answer:
i got this question today and it's b
Explanation:
What is true of the endocrine system?
Choose 1 answer:
A. It processes information from sensory organs.
B. It controls body processes through the use of hormones.
C. It is made up of the brain, spinal cord, and nerves.
D. It transmits electrical signals between neurons.
Explanation:
As I think option B is the correct one
Explanation:
B. It controls body processes through the use of hormones.
hope it is helpful to you
PLEASE HELP!!!! You are a scientist tasked with writing a journal article on the evolution of alligators. In 3–5 sentences, describe the different forms of evidence you might use to analyze the evolution of alligators.
Answer:
The first alligator ancestors evolved about 245 million years ago.
Explanation:
The first alligator ancestors evolved about 245 million years ago due to change in the environmental condition. crocodilians appeared about 80 million years ago during the Cretaceous period. Modern alligators has experience less changes which is closely related to their ancient ancestors and look much like to their relatives that exists about 80 million years ago. The main reason for the change in the body structure of alligator is due to change in environmental condition.
The evolution of alligators can be analyzed by sequencing samples of different species and then producing a bioinformatic analysis.
What is evolution?Evolution means descendence with some class of modification in offspring (phenotypic, genetic, etc).
Evolution can be analyzed by sequencing and comparing the linear order of nucleotide sequences between different species.In conclusion, the evolution of alligators can be analyzed by sequencing samples of different species and then producing a bioinformatic analysis.
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PLS HELP I’LL GIVE BRAINIEST
Answer:
SEE BELOW
Explanation:
1) DNA: CCA TAG CAC GTA CAA CGT GAA AGG TAA
mRNA: GGU AUC GUG CAU GUU GCA CUU UCC AUU
AMINO: Gly lle Val His Val Ala Leu Ser lle
2) DNA: CCG TAG CAT GTT ACA ACG CGA AGG CAC
mRNA: GGC AUC GUA CAA UGU UGC GCU UCC GUG
AMINO: Gly lle Val Gln Cys Cys Ala Phe Val
Organ transplantation, stem cell research, and cloning, are all examples of biotechnology.
O False
O True
Describe TWO environmental consequences, other than those related to the loss of boreal forest habitat, that result from the extraction of bitumen or the transportation of synthetic oil to customers.
Answer: The greenhouse gas emissions from the extraction of bitumen and the use of large quantities of water.
Explanation:
Bitumen is a natural flammable organic matter formed from kerogen in the process of petroleum generation, which is soluble in carbon disulfide. Asphalt and mineral wax are examples of hydrocarbons which are part of bitumen. Conventional oil is extracted by wells while oil sands deposits are extracted using surface mining sectioning techniques, or are flowed to wells by in situ techniques that reduce bitumen viscosity by steam and/or solvents. So, unlike crude oil extracted in oil wells, bitumen requires an open-pit mining operation, in which large tracts are washed with a mixture of water and chemicals to separate the bitumen from a mixture of sand and clay.
Two consequences of this practice are:
The greenhouse gas emissions from the extraction of bitumen are larger than the extraction of conventional oil. The emissions produced contribute to enhance the greenhouse effect and cause global warming. The greenhouse effect occurs when certain gases retain part of the energy emitted by the earth's soil when heated by the sun's radiation. This phenomenon occurs naturally, and thanks to it, the average temperature of the Earth is about 14º C (57.2 °F). The problem occurs when these greenhouse gases increase in the atmosphere and the amount of energy that is not released into space also increases and, with it, the Earth's temperature. The extraction of bitumen from oil sands requires the use of large quantities of water, and even though water used here can be recycled, only a small amounts is returned to the natural cycle. Also, spills from the transportation of the oil could damage soils and waterways, increasing water pollution. This toxic water could get into surface.Which is the best answer to explain how energy levels are affected as energy moves through a food pyramid?
a)Energy increases at the top of the food pyramid because the top predators need more energy
b)Energy increases at the bottom of the food pyramid because consumers pass energy on to the producers
c)Energy decreases at the top of the pyramid because energy is lost at each level of the pyramid
d)Energy decreases at the bottom of the pyramid because producers represent less energy than consumers
will mark brainlist, help please!
Answer:
C
Explanation:
Structures and behaviors for animals to obtain food
Select one:
a.
Adaptations
b.
Respiration
c.
Digestion
The offspring in binary fission are
identical
different
Answer:
Identical
Explanation:
Binary fission is a form of asexual reproduction. This is when only one parent is involved in creating offspring. Since there is only one parent, two sets of DNA cannot be combined into a new offspring; so, it must be identical.
↬Define a Cell in Biology.
The cell is the basic structural, functional, and biological unit of all living organisms.
The structural and essential component of life is the cell. Cell biology is the study of cells, including their fundamental makeup and the purposes of each of their organelles.
The first biologist to discover cells was Robert Hooke. Cells make up every living thing. They could consist of several cells (multicellular) or just one cell (unicellular) (multicellular).
The tiniest cells known to science are mycoplasmas. All living things are constructed from cells. They give the body structure and turn the nutrients from the diet into energy.
Complex cells conduct a variety of tasks for an organism's parts. They resemble masonry bricks in that they come in a variety of sizes and forms.
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Explain why some mutations cause differences in phenotype and others do not?
Which organ releases the hormone insulin in order to regulate the level of blood sugar in the body?
Gall Bladder
Liver
b. Pancreas
d. Spleen
Answer:
Pancreas
Explanation:
Insulin is an essential hormone produced by the pancreas.
Answer:
Pancreas
Explanation:
During digestion, your pancreas makes pancreatic juices called enzymes. These enzymes break down sugars, fats, and starches. Your pancreas also helps your digestive system by making hormones. These are chemical messengers that travel through your blood.
PLEASE ANSWER THE QUESTION BELOW
Answer:
Explanation:
A diagram of a Punnett Square showing the chromosomes involved in the inheritance of sex-linked traits.
The female had the genotype XHXh, and produced the two gametes seen at the left side of the diagram.
The male had the genotype XHY0, and produced the two gametes seen at the right side of the diagram.
The genotypes seen in the center of the square represent the possible genotypes of the F1 generation.
Two female offspring are produced for every two male offspring.
One male and one female offspring inherit normal genes.
One female is heterozygous for the hemophilia trait and is considered a carrier.
One male receives a damaged X-chromosome and inherits the condition known as hemophilia.
What is the answer to this?
Answer:
I say the correct answer is the 3rd one.
Explanation:
Answer is number 3
Your friend believes Tom Cruise is an authority (or trustworthy source) on the topic of psychiatric medication. Evaluate the reliability and credibility of using Tom Cruise as a source.
Answer:
Tom Cruise is not a trustworthy source because he is an actor, and is not a trained professional who is properly educated about psychiatric medication.
Explanation:
hope this helps
Other than mountains, what else could cause geographic isolation?
Answer:
Other than mountains, what else could cause geographic isolation? population to start a new population. genetic drift -change in allele frequency in a small population due to random chance. migration - some organisms move away to start a new population
Explanation:
thank me later
what is chemical reaction?
Answer:
a process that involves rearrangement of the molecular or ionic structure of a substance, as distinct from a change in physical form or a nuclear reaction.
Explanation:
"Speaking of fossil fuels; the chart above shows the common uses for which fossil fuel?"*
Petroleum
Coal
Natural Gas
Nuclear
Answer:
coal
Explanation:
I need 20 characters so Im typing this in hope of filling the space
Maja puts a hockey puck onto ice. After a while the temperature of the hockey puck decreases. What happens to the molecules of the hockey puck when the temperature of the puck decreases?
Answer: The energy of the molecules in the hockey puck decreases.
Explanation:
When the temperature of the hockey puck decreases, then the energy of the molecules in the hockey puck decreases as well.
In this scenario, when the temperature of the hockey puck decreases, then the hockey puck will gain heat molecules and the cold energy of the molecules that are in the hockey puck will reduce.