Answer:
A.Hot air rising,cold air sinking
Explanation:
Hot air rises in a confined or closed space.That is one of the reasons why firefighters have some people crawl on the flour to get out. the smoke is hot air so it rises to the ceiling of the room, while cold air stays lower.
In your letter, you need to explain how the theory of evolution is supported by evidence. Be sure to include the 4 pieces of evidence for evolution as well as an example of each.
The evidence of evolution was posited by Charles Darwin. The theory of evolution states that all species are related and that they change over time
The different postulates of Drawin support the natural selection phenomenon. Darwin stated that the organisms that are fit and are able to change according to evolution are able to survive. This was known as the survival of the fittest.
The evidence of the evolution can be studied by fossil record , comparative embryology , molecular biology , and comparative anatomy.
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HELP!! Will give Brainliest answer
Which of the following describes the benefits of free-range grazing for meat production?
l.Organic wastes as fertilizer
II.Antibiotic and hormone free
III.Larger animals
IV.Provides quality meat
a
I and II
b
I and IV
c
I, II, and IV
d
I, II, and III
Answer:
C
Explanation:
free range grazing has been proven to have more quality meat. plus free range gives the opportunity to have fertilizer and obviously the grazing for free range animals is hormone free
The following describes the benefits of free-range grazing for meat production are,
Organic wastes as fertilizerAntibiotic and hormone freeProvides quality meatSo, the correct option is C.
What is free range grazing?This is the method of meat production.In this method, animals are not fenced and able to roam and graze freely.The disadvantage of free rang gazing is less intensive systems.The method is known as Concentrated animal feeding operations also called feedlots and free-rang grazing.To learn more about ,
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proved that dna Carries genetic information
Answer:
Hope it helps...
Explanation:
The Hershey–Chase experiments were a series of experiments conducted in 1952 by Alfred Hershey and Martha Chase that helped to confirm that DNA is genetic material. Hershey and Chase and subsequent discoveries all served to prove that DNA is the hereditary material.
Genetic information is carried in the linear sequence of nucleotides in DNA. Each molecule of DNA is a double helix formed from two complementary strands of nucleotides held together by hydrogen bonds between G-C and A-T base pairs. In eucaryotes, DNA is contained in the cell nucleus.
the larvae of honey bee are voracious feeder why
Match the following.
1. bacteria and fungi that break down dead matter
decomposers
2. the basic relationships that show how a community of plants, animals, and bacteria live and grow and how these living things are dependent on each other as well as the Sun, soil, and other nonliving parts of their environment; a cycle of relationships
ecosystem
3. line of plants and animals that shows the order in which organisms are eaten
food web
4. a diagram that shows the connections among food chains in an ecosystem
tertiary consumer
5. organisms that eat producers
primary consumer
6. organisms that eat primary consumers
food chain
7. predator that eats secondary consumers
secondary consumer
Answer:
1. bacteria and fungi that break down
Decomposers
2. the basic relationships that show how a community of plants, animals, and bacteria live and grow and how these living things are dependent on each other as well as the Sun, soil, and other nonliving parts of their environment; a cycle
Ecosystem
3. line of plants and animals that shows the order in which organisms are eaten of relationships
Food chain
4. a diagram that shows the connections among food chains in an ecosystem
Food web
5. organisms that eat producers
Primary consumers
6. organisms that eat primary consumers
Secondary consumers
7. predator that eats secondary consumers
Tertairy Consumers
A student observes that a mountain has a layer of coal at the top of it.
How did the coal come to be at the top of the mountain?*
Answer:
Explanation:
PLEASE HELP BRAINLY!!!!!!!!!!!!!!!!!!!1
Answer:
wat
Explanation:
Answer:
With???
Explanation:
How do we know tectonic plates move slowly
Kidneys remove what kind of waste from the body?
Answer:
Healthy kidneys filter about a half cup of blood every minute, removing wastes and extra water to make urine. The urine flows from the kidneys to the bladder through two thin tubes of muscle called ureters, one on each side of your bladder. Your bladder stores urine.
Explanation:
hope this helps have a good day
Answer:
they remove the waste called urea
Type the correct answer in the box. Spell the word correctly.
What type of disease is often the cause of death for a patient with HIV/AIDS?
Keith was diagnosed with HIV infection a few years ago. Recently his doctor diagnosed a tumor in his body. Doctor inferred he is probably suffering from __________
Tuberculosis (TB)
it is the correct answer
Which best describes the permeability of a membrane?
O A. The total thickness of the membrane
B. The flexibility of the membrane
C. The number of molecules in the membrane
D. The ability to allow materials to cross a membrane
Answer:
D
Explanation:
D. is correct because the membrane works like a security guard and only allows certain materails to cross the membrane. The definition of permeability is the state or quality that allows something to pass through.
Permeability is a standard of easy motion of liquid and gases through a membrane or material. They allow the transportation and exchange of gases in a cell.
The statement that best describes the permeability of a membrane is:
Option D. The ability to allow materials to cross a membrane.
This can be explained as:
Permeability is a physical property of membranes and substances that allows the other molecules to move through them.It acts as a barrier from substances entering and exiting the cell or membrane and maintains the balance in a system.Therefore, permeability is the allowance of materials across the membrane.
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Harry is doing a research project on the movement of plants from the ocean to land. He leaned that plants evolved
vascular tissues, which enabled them to pull water from the ground and survive on land. Which is most likely another
adaptation that contributed to the success of land plants?
cell walls
chloroplasts
waxy cuticle
O gametes
Answer:
harry learn that plants actually turn into henry stickmanbecause of the game nurds.!
Explanation:
It is difficult to make conclusions about scientific data collected from fossilized remains because the data
Answer: Fossils are rare because most remains are consumed or destroyed soon after death. Even if bones are buried, they then must remain buried and be replaced with minerals. If an animal is frozen like the baby mammoth mentioned above, again the animal must remain undisturbed for many years before found.
Explanation:
Evidence of past climate conditions is best reviewed by studying...
•deep sea sediments
•metal sulfides
•mid-ocean ridges
•modern ocean chemistry
Answer:
deep sea sediments
Explanation:
it seems more relevant but don't take my word for it double check your self
Answer:
Deep Sea sediments
Explanation:
may influence ocean conditions around the vast continent as well as climate change
What body systems work together keep you from burning your hand on a hot stove?
Answer:
The central nervous system and the peripheral nervous system.
Explanation:
The central nervous system is made up of the spinal cord and the brain, while the peripheral nervous system is everything else, right down to the pain sensors in your big toe. These two systems work together to basically control everything you do.
Hope this helps!
what is the meaning of solvent
Answer:
Solute is the substance that dissolves and solvent is the liquid in which the solute
Explanation:
1. Sodium is a silvery solid that reacts violently with water and chlorine. When they
combine to form the compound sodium chloride known as salt, there is a
fundamental change in the properties. Salt is often added to our food when
cooking and it is safe to eat. Which of the following statements supports the idea
presented?
Answer: Options are not given, here are the options.
. True to all compounds, they no longer have the properties of the elements
that makes them up.
B. True to some compounds, it maintains the properties of the elements that
makes them up.
C. True in all elements, it maintains its properties even after it combines with
other elements.
D. True to all elements, they have the properties after they are combined.
The correct option is D.
True to all elements, they have the properties after they are combined.
Explanation:
Elements are pure substances which can not be divide by any form of chemical means.
True to all elements, they have the properties after they are ccombine because elements contain atoms and atoms is the smallest indivisible units which retain chemical properties because chemical bonds are formed between the atoms of elements.
If a cell's organelle worked in an actual human factory and had the role of the electric generator, which organelle would it be?
Answer: mitochondria
Explanation:
An electric generator produces energy to do work. A mitochondria produces ATP to power the cell.
where do cells store waste
Answer:
Vacuoles
Explanation:
Reeds, sedges, and cattails are an indication of which type of native vegetation?
A Forest
B Prairie
C Marsh
D Transition
Answer: c) Marsh
Explanation:
Which one is odd one out on the basis of respiration:
Amoeba, cockroach, earthworm, euglena
Answer:
Cockroach is you answer.
Explanation:
They do this by using a very efficient breathing system that uses air filled tubes, called trachea, to deliver oxygen directly to cells. Oxygen flows in as required into the tracheal system through valves on the insect, called spiracles. But, sometimes, they shut their spiracles and stop breathing.
In pigeons, the allele B produces blue feathers. The allele W produces white feathers. The B and W alleles are codominant. A blue and white pigeon BW is crossed with a solid white pigeon WW. What percent of the offspring are expected to be blue and white?
Answer:
The correct answer is - 50%.
Explanation:
Codominance is a type of inheritance that takes place when the genotype of an individual organism in heterozygous condition express traits of both alleles.
Cross between blue and white pigeon and pure white:
BW × WW and gametes will be B and W and W and W
B W
W BW WW
W BW WW
There are 50% of BW that is blue and white pigeons
_______ species are the first species to colonies disturbed or newly created environment
Andrew wants to determine if playing classical music will affect the growth of his rose bushes. Determine the independent variable of this experiment.
Answer:
playing or not playing classic music to the rose bushes
Explanation:
independent variable is the variable the expirementer changes or controls.
Select an ecosystem that is familiar to you and describe the biotic and abiotic factors that exist there?
Answer:
Forest Ecosystem
An ecosystem is composed of two main components: biotic and abiotic factors. Biotic factors are the living parts of the ecosystem, such as plants, animals, insects, fungi, and bacteria. Abiotic factors are the non-living parts of the ecosystem, which influence the size and composition of the living parts: these are components like minerals, light, heat, rocks, and water.
Biotic Factors by Type
The most obvious features of any forest ecosystem are its trees, the dominant biotic feature. They dominate the ecosystem: both in terms of visibility and in terms of biomass. However, they are only one type of organism living in a forest. Other biotic factors include:
shrubs , flowering plants , ferns , mosses , lichens , fungi , mammals , birds , reptiles , insects , worms , microbes
Abiotic Factors by Type
The most important abiotic feature of a forest ecosystem may not be obvious, despite its ubiquity and importance: sunlight. Tangible abiotic factors include soil, minerals, rocks, and water. But abiotic factors can be intangible, such as temperature, other types of radiation, and the chemistry of soil and water.
Biotic Factors by Function
Ecologists frequently group an ecosystem's factors by what role they play in the system, rather than by what particular species they are. This is known as a functional classification.
These functions relate to the movement of energy through an ecosystem, and trees — along with other photosynthetic plants — are the chief primary producers. This means that trees convert the sun's energy into food energy, which is then used by other members of the ecosystem.
These other members of the ecosystem can also be categorized. Primary consumers are, for example, herbivores that eat the primary producers. Secondary consumers are the carnivores and omnivores that eat the primary producers. Decomposers are the scavengers, microbes, and fungi that consume the droppings and the carcasses of other organisms.
Abiotic Factors by Function
The abiotic factors of a forest fall less obviously into functional classifications, but keep in mind that the energy transferred among the various biotic categories is itself a foundational abiotic element. This energy occurs in the form of solar radiation, which includes both visible light and heat (infrared).
Primary producers (plants like trees and shrubs) convert the light into carbohydrates, a form of energy that can be consumed by other organisms. The function of other abiotic factors relies on the minerals they contain, such as the nitrogen in the soil or the hydrogen in water molecules.
An ecosystem consist of various biotic and abiotic factors which interact with each other. A grassland ecosystem is a terrestrial ecosystem which have grass as the main producers (dominant) living thing.
What is a Grassland Ecosystem?
A grassland ecosystem is a type of terrestrial ecosystem in which grasses and the herbaceous plants are the dominant species. Grass controls the grassland ecosystems as they are the main producers of the ecosystem with few or no trees where there is not favorable conditions for a forest. It is more like a dry and desert ecosystem. Therefore, it is also called as a transitional landscape.
The four important abiotic components of grassland ecosystem includes climate, parent material and soil, topography, and natural disturbances. Climate includes the rainfall pattern, temperature and wind patterns of a particular area.
Biotic Factors in the Grassland ecosystem include Plants, Insects (Invertebrates), Grazers, and Predators.
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Jordan needs to repeat the experiment, but his teacher says that he needs to improve his design. In his second experiment, what should he do differently?
Which of the following is an INVERTEBRATE?
A) Butterfly
B) Wasp
C) Crab
D) Frog
Answer:
All of the following are invertebrates except for the frog
please give me brainlist!
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Explanation:
all insects are invertebrates
including the crab
BEST ANSWER GETS BRAINLIEST Mandy made the following table describing the conditions required to form sleet and snow, but left something out. Which word should replace the X in the left column?
Sleet Snow
Temperature in the cloud Below freezing Below freezing
Temperature X Above freezing Below freezing
State of water Mix of solid and liquid Solid
Group of answer choices:
above cloud
below cloud
on the ground
in the soil
Answer:
C
Explanation:
The temperature below the cloud determines whether or not it becomes sleet or snow. For snow, it would have to be below freezing. For sleet it can be Above freezing because sleet is normally formed in slightly warmer temperatures.
Answer:
c
Explanation:
Question:
How long does it take the moon to
complete 1 rotation?
Answer:
27.3 days moon take to complete one rotation.
What impact does an increase in temperature have on the rate of a chemical reaction?
A) Temperature has no effect on the rate of a chemical reaction
B) It decreases the rate of the reaction
C) It increases the rate of the reaction
Answer:
C) It increases the rate of the reaction
Explanation:
Hope this helps!