Answer:
Main effects of adrenaline exerted on smaller arterioles and precapillary sphincters although veins and large arteries also respond to the drug. It constricts vessels of skin & mucus (mucous) membrane. It dilates BV of skeletal muscles. Thus net results of this is, decrease in the peripheral resistance.
Explanation:
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Answer:
adreneline triggers the body's fight or flight response.this reaction causes air passages to dilate to provide muscles with oxygen they need to fight danger or flee
define ostia in science
Answer:
Ostia are tiny pores present all over the body of sponges. its function is to let the water, along with desire nutrient flows interior of the sponges.
Answer:
An opening, a passage.
Explanation:
science - Anatomy
Adaptation:
Question 4
Which phrase indicates that organisms in a population with the best-adapted set of traits become more common over time?
Select one:
Mutations are not harmful.
Bigger is better.
All organisms have a common ancestor.
Survival of the fittest.
Answer:
Mutation is yes a harmful
Explanation:
Which chemical bond is most common in living things? a. ionic bond b. metallic bond C. covalent bond d. hydrogen bond
Answer:
hydrogen bond
Explanation:
i think because humans have water in the body that has hydroden maybe
What is wrong with this model of the atom?
n P+
Cloud Region
A. The protons are in the wrong place.
B. The neutrons are in the wrong place.
C. The electrons are in the wrong place.
D. The protons and neutrons are in the wrong place.
Answer:
A
Explanation:
The atomic massof an element is defined as (the SUM) of masses of protons and neutrons in an atom
Which of the following is NOT of the major biogeochemical cycles?
A.Life cycle
B.Water cycle
C.Carbon cycle
D.Phosphorus cycle
water cycle............
The following is NOT of the major biogeochemical cycles D.Phosphorus cycle is D.Phosphorus cycle.
What is the difference between Carbon cycle and Phosphorus cycle?The major distinction among carbon and phosphorus cycle is that carbon cycle interacts with the environment while phosphorus cycle does now no longer engage with the environment. Therefore, the carbon cycle is a sort of gaseous biking while the phosphorus biking is a sort of sedimentary rocks.
As in comparison to nitrates & different macro elements, decomposers take longer time to decompose any lifeless biota into phosphates. Decomposers are organisms mainly a soil bacterium, fungus, or invertebrate, that decompose natural material. These are the motives for phosphorus cycle being the slowest biogeochemical cycle.
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Which process must occur for a muscle to be able to relax?
ОА. .
The amount of ATP in the neuromuscular junction must increase.
OB. Myosin and actin must attach to each other.
OC.
A nerve must initiate an action potential in the muscle fiber.
OD
The concentration of calcium in the myofibril must decrease.
Answer:
D. The concentration of calcium in the myofibril must decrease.
In paragraph form (automatic 1-pt deduction if not), explain the evolutionary benefits of sexual reproduction as a means of increasing variation. Be sure to include (a) at least two ways in which sexual reproduction impacts genotype (i.e. genetic effects), and (b) two ways in which sexual reproduction may affect phenotype (i.e. trait effects).
Answer:
See explanation
Explanation:
According to the theory of evolution,species which are better adapted to their environment tend to survive and reproduce in a population passing on these favourable characteristics to their offsprings.
During sexual reproduction, genes can be arranged in new ways from chromosomal crossing over and recombination. This introduces new gene combinations(genotype) and ultimately variation in the population.
This variation may also lead to the observation of new phenotypes in the population.
Which of the following represents biotic factors? 1. Sunlight II. Oxygen III Plants
1 and 11
ll and III
lll only
ll only
Answer:
1 and 11
Explanation:
The five abiotic factors are sunlight, temperature, water, oxygen, and soil.
Plants represent biotic factors.
What is a biotic factor?"A biotic factor is a living organism that shapes its environment. Example: plants, animals, microorganisms."
What is abiotic factor?"An abiotic factor is a non-living part of an ecosystem that shapes its environment. Example: sunlight, air, soil, water, etc."
What are the components of environment?The basic components of the environment are
atmosphere or the air,lithosphere or the rocks and soil,hydrosphere or the water,the living component of the environment or the biosphere.To know more about biotic factors here https://brainly.com/question/27430655
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Why do frogs have triangular heads?
Plz help me with this question!!
Answer:
Aquatic frogs tend to have long, flat skulls, while digging species often have short skulls with pointed snouts, a shape that also enables them to use their mouths like chopsticks to catch small, scurrying prey such as ants and termites.
Explanation:
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The number of chromosomes within each species of plant or animal:
A. is constant is
B. reduced in half with reproduction
C. is always 46
D. varies
Answer:
is always 46
Explanation:
46 is the correct answer
Answer:
the answer is a.
Explanation:
if you are talking about only within a specific species, then the number of chromosomes is supposed to stay constant within that species. however, chromosome disorders do exist, but they are relatively rare.
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Whats the Independent variable for “Which Bait works best for a homemade fly trap?”
Answer:
The independent variable for "which bait works best for a homemade fly trap" if using the hypothesis of "If I use the correct bait, then I will have a successful homemade fly trap" is the bait that you are going to use.
Explanation:
Using your "if, then" statement, the cause is called the independent variable and the effect is the dependent variable.
Hope this helps!
How did the x-ray evidence produced by Rosalind Franklin contribute to Watson and Crick’s discovery of the structure of DNA?
Answer:
Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule. ... Watson and Crick realized that DNA was made up of two chains of nucleotide pairs that encode the genetic information for all living things.
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Answer:
Created by Rosalind Franklin using a technique called X-ray crystallography, it revealed the helical shape of the DNA molecule. ... Watson and Crick realized that DNA was made up of two chains of nucleotide pairs that encode the genetic information for all living things
Explanation:
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Difference between Birds and Bats.
Explanation:
Bat and birds fall into two very distinct Categories: bats are classified as mammals and birds are ave. Bats give birth to live young and produce milk to feed their babies. Birds lay eggs and forage to feed their young.
Many animals have a mutually-beneficial, symbiotic relationship with bacteria that reside in their guts. To study the effects of these relationships in more detail, research organisms such as fish and mice have been raised under germ-free conditions. What important process do you predict is compromised in germ-free mice
Answer:
Explanation:
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The heart is an example of which level of organization within an organism?
cell
organ
tissue
оо
organ system
Answer:
tissue is a right answer
tissue is the right answer the heart is an example of tissue.
How many different genotypes are possible from a cross between the parents RRYy and rrYY?
Answer:
1 genotype is possible
RrYy
For a scientific theory to be valid, it must allow you to
O perform experiments
obtain new results each time.
find a new, more complex explanation
Make predictions
Answer:
Explanation:
That's quite a bit of points. Offer 20 next time (which shows up as 10).
Not all experiments lend themselves to this, but the best ones do. Make predictions. The startling experiments (the best of them) certainly allow you to make predictions
Most of the time, experiments confirm what was originally thought. It is, however, the best answer among this bunch.
A is also possible, but not always. I will stick with D, but I think others will pick A.
Decide whether each statement is a 'positive' or 'negative effect of deforestation.
a) It provides land to grow food or keep farm animals.
b) It makes mudslides more common.
c) It allows new roads to be built to connect cities.
d) It can make the area warmer and windier.
e) It can cause extinctions by destroying habitats.
f ) It allows more biofuels to be grown to provide energy.
g) It increases the amount of soil carried away by rivers.
h) It increases the amount of carbon dioxide in the atmosphere.
Answer:
1) negative because it provides land for something and they need to take of trees maybe.
2) positive because that ends up in trees and they grow more
3) negative because it takes a lot of space so trees need to be taken off.
4) positive.
5) negative because the habitats of the animals are normally near trees
6) negative.
7) positive because it lets the trees grow better
8) positive because plant breath carbon dioxide.
Explain the relationship of the structure of cell membrane molecules to the function of the cell membrane overall. You must discuss the structure/function relationship of at least 3 different molecules that compose the cell membrane.
Help me please
Answer:
to protect the cell from its surroundings
Explanation:
I double checked my notes
Complete the following.
1. Waste containing dangerous chemicals is ...... waste.
2. Vegetable and fruit peels and food left over comprise ... waste.
3. Hospital waste is highly ......
4. Plastic is nonbiodegradable, as it does not
5. The method of adding earthworms to compost pits is called ...
1) Waste that contains both hazardous chemicals and radioactive wastes (generally those in the LLW category) is termed 'mixed waste
2) Vegetable and fruit peels and food left over comprise biodegradable waste.Plastic is non-biodegradable, as it does not decompose
3) Hospital waste is the second most hazardous waste after radioactive waste. The improper management of hospital wastes causes serious environmental problems in terms of air, water and land pollution
4) most plastics are non-biodegradable mainly because plastic is widely used because of its low cost, versatility and durability
5) Vermicompost (vermi-compost) is the product of the decomposition process using various species of worms, usually red wigglers, white worms, and other earthworms, to create a mixture of decomposing vegetable or food waste, bedding materials, and vermicast
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what was invented in the late 16th century that allowed scientists to study organisms at a new level
Answer:
compound light microscope
Explanation:
:)
The light microscope was in the late 16th century that allowed scientists to study organisms at a new level.
Thus, The microscope revolutionized the field of biology by enabling researchers to observe and study tiny structures, cells, and microorganisms that were previously invisible to the eye.
This technological advancement marked a significant milestone in the history of science.
It paved the way for discoveries and insights into the microscopic world of living organisms.
Thus, The light microscope was in the late 16th century that allowed scientists to study organisms at a new level.
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Hello everyone, I need your help plz
Define the word Microbiology:-
Thx ^_^
Answer:
Microbiology is the study of microscopic organisms, such as bacteria, viruses, archaea, fungi and protozoa. This discipline includes fundamental research on the biochemistry, physiology, cell biology, ecology, evolution and clinical aspects of microorganisms, including the host response to these agents.
it is the branch of biology that studies micro-organisms (very small organisms). ... The scientific study of microorganisms. (biology) The branch of biology that deals with microorganisms, especially their effects on man and other living organisms.
the study of all living organisms that are too small to be visible with the naked eye. This includes bacteria, archaea, viruses, fungi, prions, protozoa and algae, collectively known as 'microbes'.
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What would be the resulting polypeptide chain that is produced from the DNA template code: TACTTCAAAATC? Use the following RNA codon to amino acid table to help you figure out the resulting polypeptide. Show your steps.
Answer:
Methionine- Lysine- leucine- stop
Explanation:
This question is describing the processes of transcription and translation, which are both involved in protein synthesis. Transcription is the synthesis of a mRNA molecule from a DNA template while translation is the synthesis of a polypeptide/amino acid sequence from a mRNA template.
The following DNA molecule was given as follows; TAC TTC AAA ATC. Firstly transcription will synthesize an mRNA molecule based on complementary base pairing rule. The resulting mRNA will be: AUG AAG UUU UAG
Next, the process of translation which involves the synthesis of an amino acid sequence from mRNA. Using the genetic code will produce the following:
Methionine- Lysine- leucine- stop
8. How is penicillin used?
O to make cheese
O to kill protists that cause disease
O to kill bacteria that cause disease
O to make bread rise
Answer:
O to kill bacteria that cause disease
Explanation:
penicillins are a group of antibiotics used to treat a number of bacterial infections.
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What relationship will blood volume have on blood pressure?
Answer:
Answer:I HOPE THAT ABOVE INFORMATION WILL HELP YOU A LOT.
Answer:I HOPE THAT ABOVE INFORMATION WILL HELP YOU A LOT.
Why is it difficult to bond three phosphate groups to Adenosine?
They have the same charge and repel each other.
They form a strong attraction to each other.
They are like opposite poles of a magnet.
The energy is evenly dispersed across all three bonds.
how many hearts does the octopus have ?
Answer:
3
Explanation:
Answer:
Three hearts
Explanation:
One heart pumps blood throughout the body, while the other two pumps oxygen-rich blood through the gills.
OAmalOHopeO
A boy picks up an earthworm and place it on a white tile. He observed that the earthworm has difficulty in moving forward.
Explain why.
Answer:
A number of tiny hair like bristlez are present on the lower surface pf an earthworm's body. These bristles help it to get a good grip on the surface of q ground.However these bristles donot provide good grip on plain glass tiles.
Earthworms have microscopic hairs or bristles all over their body which provide the necessary traction while movement. These bristles or setae are present on each segment of their body and it imparts the necessary grip or anchorage for forward and backward movement.
Tile is smooth in nature so earthworms cannot move as the setae will not get sufficient surface support to move the body.
Answer From Gauth Math
Besides plants, what other factor distinguishes one biome from another biome?
(A) the number of plant species in the biome
(B) the variety of animal species
(C) average temperatures and precipitation
(D) geographic location
Which of the following shows the correct order in which sound information travels through the ear?
O Ossicles, eardrum, cochlea, cochlear nerve
Eardrum, ossicles, cochlear nerve, cochlea
O Eardrum, ossicles, cochlea, cochlear nerve
O Ossicles, eardrum, cochlear nerve, cochlea
The following shows the correct order in which sound information travels through the ear is Eardrum, ossicles, cochlear nerve, cochlea.
What is the cochlear nerve?The cochlear nerve, additionally called the acoustic nerve, is the sensory nerve that transfers auditory records from the cochlea (auditory vicinity of the internal ear) to the brain. It is one of the many portions that make up the auditory system, which permits powerful listening to.
We pay attention while sound waves journey thru the air to our eardrum, throughout our center ear, into our internal ear, and sooner or later to the auditory facilities of our brain. Our ears are constantly on and are constantly sporting sounds alongside this listening-to pathway.
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Answer:
Eardrum, ossicles, cochlea, cochlear nerve
Explanation:
