Answers
Answer:
4 mass extinctions
Explanation:
as there are huge drops in the graphs
at 440,390,260,50
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Related Questions
When does facilitated diffusion occur?
-When one liquid has a higher osmotic pressure than the other.
-When certain large molecules are unable to move through the membrane
without the help of channel proteins.
-When ATP is available to assist in moving molecules.
-When there's a strong membrane potential present, with the inside of the cell
being more negative than the outside of the cell.
Answers
Answer:
When certain large molecules are unable to move through the membrane without the help of channel proteins
Explanation:
Facilitated diffusion occurs when large molecules that are unable to pass through a membrane on their own make use of channel proteins to move from one side of the membrane to the other. Facilitated diffusion can occur when a liquid on one side of a membrane has a higher osmotic pressure than a liquid on the other side of the membrane, but it isn’t a required feature of facilitated diffusion. Similarly, facilitated diffusion can occur when there’s a large membrane potential present, but it isn’t a required feature of facilitated diffusion. Facilitated diffusion doesn’t require the use of energy, so the presence of ATP is irrelevant to facilitated diffusion occurring.
Which species of gymnosperms has reddish cones and strap like leaves that tear up from the harsh desert conditions?
A. gnetum
B. welwitschia
C. ephedra
Answers
Answer:
welwitschia
Explanation:
Which of these sentences is true with respect to species?
Answers
how much water was retained by soil C
Answers
Answer:
we dont know sorry but i dont know
Organisrns that transfer diseases to hurnans are
O hosts
O pathogens
O parasites
O vectors
Answers
Now that you figured out the name of the person that absconded with your grandmother is Andrew P. Oliver, check out the scrap of paper to figure out the code.
attached below
Answers
Answer:
gym cat dog food parrot train
Explanation:
rain
Answer:
dress, cat, ring, tiger, tv, rain, pear, apple, cow, bath, pig, hat, rice, ski, eyes
PLEASE HELP !!
100 POINTS !!
WRONG ANSWERS WILL GET REPORTED.
WHAT IS THE ECCENTRICITY OF A COMPLETELY FLAT ELLIPSE ?
-EXPLAIN IN YOUR OWN WORDS.
Answers
Answer:
The eccentricity of an ellipse is between 0 and 1 because the distance from the fixed point on the plane has a constant ratio which is less than the distance from the fixed line in the plane.
Explanation:
in other words ,The eccentricity of an ellipse is defined as the ratio of the distance between its two foci and the length of the major axis
hope i hepled
Distinguish between the 4 major modes of nutrition of prokaryotes and identify each modes energy source and carbon source as well as giving an example
Answers
The four major modes of nutrition in prokaryotes are photoautotrophic, chemoautotrophic, photoheterotrophic, and chemoheterotrophic. Their differences, energy source and carbon source are explained below:
WHAT ARE PROKARYOTES?
Prokaryotes are a group of organisms that do not have their genetic material enclosed in a membrane bound NUCLEUS. They include bacteria, archeae etc.METABOLISM IN PROKARYOTES:
All organisms, prokaryotes inclusive, need energy for their metabolic activities. They also need carbon. Hence, based on their carbon and energy source, prokaryotes can be:
Photoautotrophic: These are prokaryotic organisms that use carbon dioxide as their carbon source and light as their energy source. Example iscyanobacteria.
Chemoautotrophic: These are prokaryotic organisms that act on inorganic substances as energy source and use carbon dioxide as carbon source. Example is Nitrosomonas bacteria.Photoheterotrophic: These are prokaryotic organisms that use light as source of energy but obtain carbon from other organisms (organic sources). Examples are heliobacteria, sulfur bacteria.Chemoheterotrophic: These are prokaryotic organisms that act on inorganic substances as energy source but derive their carbon source from organic compounds (other organisms).Learn more: https://brainly.com/question/6103977
Which of the following choices has had the most destructive impact on deciduous forests?
forest fires
termites and woodpeckers
humans clearing forests
chemical pollution
Answers
Answer:
humans clearing forests
Explanation:
The rock shown is made of light and dark mineral crystals that are evenly
distributed
Which phrase describes the most likely environment in which this rock
formed?
A. Very low temperature and very high pressure
B. Very low temperature and pressure
C. Very high temperature and very low pressure
D. Very high temperature and pressure
Answers
Answer:
I think it’s c because the crystals look quite large and doesn’t seem squashed
Hope that helps
Explanation:
Answer:
C is the wrong answer
Explanation:
I got it wrong
A large section of tropical rainforest is cleared to build roads for mining. Select the least likely outcome of this habitat fragmentation from the options below. a.) Species that require open grazing areas may not survive. b.) Species will quickly adapt and re-populate the area. c.) The environment on the habitat edges will support different plants and animals. d.) Subpopulations of species may emerge.
Answers
Answer:
B
Explanation:
B - Species, especially ones with small niches, that looses their niches will likely die out or move to another location. Roads Will, in general, also disrupt the ecosystem (or the remains of it) and its inhabitants, which might lead to migration once again. That would be my reasoning at least. (:
Cells dispose of large waste molecules through a process called
osmosis.
diffusion.
exocytosis.
endocytosis.
Answers
Cells dispose of large waste molecules through a process called exocytosis.
Exocytosis is the process through which cells can eliminate wastes, which might be useless or toxic, to the extracellular space.
-------------------------------
The endocytosis and exocytosis process refers to molecules transport mediated by vesicles.
Exocytosis occurs from and into the cell and needs energy to happen because it is active transport.Exocytosis involves vesicles or vacuoles. Vesicles or vacuoles can carry substances destined for exportation or cellular wastes. Wastes may be large molecules that result useless for the cells or that might be toxic. During the exocytosis process1) excretion compounds of varying nature accumulate within the
vesicle
2) The vesicle migrates toward the cellular surface.
3) Once in the surface, the vesicle's membrane fuses with the cellular
membrane, and its content is expelled from the cell to the
extracellular space.
4) Vesicle membrane remains fused to the cell membrane until it is
reused during endocytosis events.
------------------------------
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a report conclusion on waste management
Answers
Most physical characteristics are inherited. Scientists have discovered several genes that contribute to human fatness, particularly genes that regulate the production of specific ____________ , such as ____________ , which stimulates hunger, and ____________ , which reduces hunger.
Answers
Answer:
hormones; ghrelin; leptin.
Explanation:
Genetics can be defined as the scientific study of hereditary in living organisms such as humans, animals and plants.
Heredity refers to the transfer of traits (specific physical characteristics) from the parent of a living organism to her offspring through sexual reproduction or asexual production. Some examples of hereditary traits are dimples, tongue rolling, baldness, handedness, freckles, curly hair, color blindness, height, etc.
A gene can be defined as the complete set of hereditary instructions that is typically found in the deoxyribonucleic acid (DNA).
Over the years, scientists have discovered several genes that are known to contribute to human fatness (body weight), especially genes that are saddled with the responsibility of regulating the production of specific hormones, such as ghrelin, which stimulates hunger, and leptin, which reduces hunger.
What are the following is considered a receptive a fine touch
Answers
Explanation:
This system is responsible for all the sensations we feel – cold, hot, smooth, rough, pressure, tickle, itch, pain, vibrations, and more. Within the somatosensory system,there are four main types of 1.receptorsme chanoreceptors, 2.thermoreceptors,3. pain receptors, and 4. proprioceptors.How does non-random mating cause
evolution?
A. A population that ensures each individual reproduces
causes the population to evolve.
B. When multiple species mate with each other the
population evolves.
C. Individuals choose their mates, meaning that some
individuals pass on their genes and other do not.
D. Individuals that mate with the same individual every
year help evolve their population.
Answers
if your results support the hypothesis when it becomes
Answers
Please help please ???? I need help lol
Answers
What is the fallopian tube fimbriae made of? Pls I need help asap
Answers
Answer:
The mucous membrane would be the answer
Many resources pose risks to human health, for example poisonous chemicals, fuels and explosives. Use of these resources is often considered to be sustainable because people must follow safety rules when they use them.
Do you think the use of asbestos could be made sustainable in the same way?
Answers
Answer:
The answer is:
Explanation:
Yes, since asbestos also could be poisonous and I think it could be sustainable in the same way
Hope this helps....
Have a nice day!!!!
What is the valence of an atom with six electrons in its outer electron shell?
A)1
B) 2
C) 3
D) 4
E) 5
Answers
Answer:
D. Valency is 4
Explanation:
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BLEACH ANSWER THIS QUESTION!!!
ABOUT 70% of total Global carbon is found in
1) Ocean
2) Forest
3) Grasslands
4) Agroecosystems
Answers
Answer:
1) Ocean
Explanation:
HOPE IT HELPS YOUDuring inhalation, the chest cavity _________ in volume, _________ the pressure in the lungs.
Answers
Answer:
1. reduce la presión interna
2. el aire se precipita hacia adentro y llena los pulmones.
Explanation:
Spinal cord is blank to the esophagus
Answers
Answer:
posterior
Explanation:
An investigator wishes to use animals in an experiment that involves USDA pain category B, C, and D activities performed on the same animal. How should the animal be categorized
Answers
The animals used in an experiment that involves USDA pain category B, C, and D activities performed on the same animal should be categorized to USDA category D.
The USDA pain categories are used to categorize the level of pain an animal used in testing and research will be exposed to. The categories are as follows:
USDA B: the animal will not feel pain of any kindUSDA C: the animal will feel the occasional slight painUSDA D: Painful procedures that will be mitigated by pharmaceuticals.USDA E: Painful procedures that will not be mitigated.Category B states the animal will not feel pain. Animals in this category are often used for breeding, which is a natural process that does not cause animal distress or pain.
Animals in category C may feel the occasional slight pain which is allowed to subside naturally without the use of pharmaceuticals. This may include procedures such as
Drawing blood samplesInjectionsAnimals in category D are exposed to painful or stressful procedures and will receive anesthetics and other chemical agents to mitigate or completely relieve the pain, Whereas E category animals do not receive said assistance.
These categories follow a strict rule. Animals must be categorized according to the most painful procedure it will undergo, so because the experiment will use USDA B, C, and D procedures, the animals must be placed into USDA category D.
For more regarding animal testing visit: https://brainly.com/question/2995484?referrer=searchResults
In a 1973 essay with the same name, geneticist Theodosius Dobzhansky made famous the idea that nothing in biology makes sense except in the light of evolution. From a careful reading of The Serengeti Rules, one could also argue that nothing in biology makes sense except in the light of regulation. Do you agree or disagree with this claim
Answers
I agree with this claim because organisms interact with one another in an ecosystem, thereby regulating population sizes in the community.
The Serengeti Rules is a documentary film based on biologist Sean B. Carroll's book (2017). This book explains the balanced functioning of an ecosystem by exploring the discoveries of five pioneering scientists: Mary Power, Bob Paine, Tony Sinclair, John Terborgh, and Jim Estes.
The term 'Serengeti rules' is due to many of these rules were obtained by studying natural populations in the Serengeti National Park (Tanzania).
These rules are a set of simple ecological rules of nature that indicate how ecosystems work.
The Serengeti rules explain how organisms interact with one another in the ecosystem, thereby regulating population sizes in the community.
Some key concepts of the Serengeti rules are as follow: Keynote species is a type of species whose activities govern the wellbeing of other species in the ecosystem. A trophic cascade is a phenomenon by which species impact other species even when they do not directly interact with each other. Downgrading refers to cascading effect of the removal of a species at the top of a food web (e.g., predators)
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A patient was diagnosed with a deficiency of the lysosomal enzyme alpha-galactosidase. The name of the deficient enzyme suggest that it hydrolyzes a glycosidic bond, which best describes the bond that can’t be broken ?
A. multiple hydrogen bonds between two sugar molecules
B. BetweentheanomericcarbonofasugarandanOH(orN)of another molecule
C. Betweentwoanomericcarbonsinpolysaccharides
D. Internal bond formation between the anomeric carbon of a monosaccharide and
its own fifth carbon hydroxyl group.
E. Between the carbon containing the aldol or keto group and the α-carbon of the
sugar.
Answers
The best describes the bond that can’t be broken is B. Between the anomeric carbon of a sugar and an OH (or N) of another molecule
Glycosidic bonds are a class of covalent bonds that joins a carbohydrate molecule to another group.
A polysaccharide (where poly means 'many') is a long chain of monosaccharides linked by glycosidic bonds.
Glycosidic bonds are formed between the hemiacetal group of a saccharide and the hydroxyl group (OH) of another compound (e.g., alcohol).
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Which of the following correctly lists functions o
proteins?
transporting substances, creating proteins,
and fighting disease
being the blueprints for life and the bases of
heredity
providing structure, regulating cell processes
and creating movement
O sending messages, providing structure, a
creating proteins
Answers
Answer:
please follow me
Explanation:
providing structure, regulating cell process and creating movement.
1. What is meant by growth and development of organisms?
2. Why living things are called organisms ?
Answers
Answer:
jfydubojkg rribonpjdigono
Difference between Aves and mammals
Answers
Answer:
Aves have their body covered in feathers. Bodies of mammals are covered with hair. ... Mammals have mammary glands. Aves have their forelimbs modified into wings.
Explanation:
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Answer
Aves
Aves or birds are vertebrates that are able to fly. They own feathers. Aves bones are hollow and light. Forelimbs of the aves are adjusted to flight. The Aves belong to the phylum Chordata of the animal kingdom.
Mammals
Mammals are a class of vertebrates of kingdom Animalia. Mammals are distinguished from other animals by having their own mammary glands. Mammals are multicellular, eukaryotic organisms. Animals belonging to class Mammalia are referred to as mammals.
Difference between Aves and Mammals
The difference between aves and mammals are attached as image
