What is meant by reflex-action ? With the help of a labelled diagram trace the sequence of events which occur when we touch a hot object.
Answers
A reflex, or reflex action, is an involuntary and nearly instantaneous movement in response to a stimulus.
A reflex is made possible by neural pathways called reflex arcs which can act on an impulse before that impulse reaches the brain.
Related Questions
The above is an illustration of which of the following leaf components?
epithelial cell
chloroplast
mesophyll
thylakoid
Answers
Answer:
Chloroplast............... Is one of them
Which of the following is not a recognized domain of the classification of living things?
A. Archaea
B. Protists
C. Bacteria
D. Eukarya
Answers
Scientists found a strange blob, buried under lots of dirt and rock. They had to decide whether this blob is a
living or nonliving thing. What would be a good way to find out?
Melt it and see if it goes through a physical or chemical change
Test it in a lab to find out what atoms it is made of
Look at it under a microscope and look for cells
Poke at it with a stick to see if it moves
Answers
Answer:Look at it under a microscope and look for cells
Explanation:
Cladistics is a classification system based on
a. nomenclature
b. dichotomous keys
c. common ancestry
d. physical characteristics
Answers
Answer:
c
Explanation:
cladistics is based on evolutionary ancestry and generates trees called cladograms. Cladistics also identifies clades, which are groups of organisms that include an ancestor species and its descendants. Classifying organisms on the basis of descent from a common ancestor is called phylogenetic classification.
How are embryonic stem cells and adult stem cells similar and different?
Answers
Answer:
Both are cells and one is older than the other
Explanation:
Many people try to eliminate fat from their diets. Which is one reason it is
necessary for humans to eat fat?
Answers
Answer:
Dietary fats are essential to give your body energy and to support cell growth. They also help protect your organs and help keep your body warm. Fats help your body absorb some nutrients and produce important hormones, too. Your body definitely needs fat.
Explanation:
PLEASE HELP ME ASAP GIVING 35 POINTS AWAY!!!!! FILL IN THE BLANKS FOR ME
Answers
Answer:
too blurry. cannot see...
The formation of soil is primarily the result of
A) stream erosion and mass movement
B) stream deposition and runoff
C) prescription and wind erosion
D) weathering and biological activity
Answers
╔═.✵.══════════╗
A N S W E R
╚══════════.✵.═╝
☆☆☆
D
☆☆☆
Hope this helped, love!
Why do tropical rainforests have more species than all other biomes?
Answers
Answer:
Rainforests have an abundance of plants and animals for the following reasons: Climate: because rainforests are located in tropical regions, they receive a lot of sunlight. ... Since there is a lot of sunlight, there is a lot of energy in the rainforest. This energy is stored in plant vegetation, which is eaten by animals.
Explanation:
How did horses change as they evolved over the past 50 million years?
A. Horses used to have four distinct digits.
B. Horses used to be bigger.
C. Horses used to have no distinct digits.
D. Horses used to have very long teeth.
Answers
Answer:
B
Explanation:
Listed in the Item Bank are individual steps that need to be ordered. To find out more information about steps, some have more details
available when you click on them. Drag and drop the steps in the proper order by placing each in its corresponding open rectangle. Be sure
that the earliest step is placed next to the number 1.
Answers
complete question:
ANSWER LIST -
mRNA moves to the ribosome
DNA unzips in the nucleus
Protein assembled at ribosome
Transcription occurs
Translation occurs
Answer:
1. DNA unzips in the nucleus.
RNA polymerase binds to the DNA sequence, separates the two strands and creates a single-stranded DNA molecule that will be transcripted.
2. Transcription occurs.
Transcription is the first step of gene expression. During this process, a gene's DNA sequence is copied and a mRNA molecule is produced.
3. mRNA moves to the ribosome
The mRNA is then transferred from the nucleus to the ribosome, the organelle that serves as a site for protein synthesis.
4. Translation occurs
Translation is the process where a mRNA sequence into the amino acid sequence of a polypeptide (protein).
5. Protein assembled at ribosome.
Translation, meaning the formation of a protein, occurs on the ribosome.
I hope I am correct and this helps a little bit.
HELP ASAP ! Tall ( T ) is the dominant allele in pea plants , while short ( t ) is recessive . which of the following genotypes of a tall plant ?
Answers
I need 20 words so here ya it’s D
Write a unified, coherent essay in which you evaluate multiple perspectives on the
issues connected with genetic engineering. In your essay, be sure to:
• analyze and evaluate the perspectives given
• state and develop your own perspective on the issue
• explain the relationship between your perspective and those given
.
organize your ideas clearly and logically
• communicate your ideas effectively in standard written English
Answers
Answer: Unknown side effects or outcomes may result from genetic engineering. Some people may experience unanticipated allergic reactions as a result of changes in a plant or animal that did not occur in its original form. Other changes can result in an organism's toxicity to humans or other species.
In 1980, a long dormant volcano, Mount St. Helens in Washington state, erupted violently. The eruption wiped out the forested landscape and the wildlife. Months after the initial disturbance, the ash and rock strewn surface began to undergo primary succession.
Answers
Answer:
New vegetation and animals came to this place when the environment is suitable.
Explanation:
The ash and rock strewn surface began to undergo primary succession after few month when the soil is cool down because the soil has nutritive medium that helps the vegetation to grow on that land. In the primary succession, the new vegetation grows which is well suited to that environmental condition and uses the nutrients present in that soil for its growth and development. Many new organisms also came to this new landscape when the environment is suitable.
Can someone pls help me
WILL MARK YOU BRAINLIEST !!
Answers
Explanation:
the answer is j. increase in size
Describe the two main factors that influence the path of surface currents.
Enter your answer in the space provided.
Answers
Answer:
The 2 main factors are wind system forces and Earth's rotation :3
I love ur profile pic btw :3
Explanation:
:3
What will be the mRNA sequence of the DNA strand it is replicating Is GACTTAGCG
Answers
3. Despite differences in prokaryotic and eukaryotic cells, all cells have ___________ in them.
Answers
Answer:
pickle
Explanation:
Each virus has a basic structure to it. Which of the following is NOT one of those basic structures?
A.Membrane envelope
B.Capsid (Protein coat)
C.Carbohydrate strands on the outside
D.Genetic material (DNA/RNA)
Answers
Answer:
D. Genetic material (DNA/RNA)
What happens at the end of the Calvin cycle?
Answers
Explanation:
At the end of the regeneration, the net gain of the set of reaction is one G3P molecule per 3 carbon dioxide molecule's.
As per the internet
what type of energy is represented by part number 1
Answers
The type of energy that is represented by part number 1 is sunlight or solar energy.
What is solar energy?The sun is one of the most significant energy sources. Most of the energy on earth comes from the sun, which is where it all began.
The sun's energy warms the planet, generates wind and weather, and keeps plant and animal life alive. There are waves of various frequencies and wavelengths throughout the electromagnetic spectrum. On the surface of the Earth, the Sun serves as the primary energy source.
It functions like a powerhouse, producing and releasing energy in the form of heat and light. Solar energy is the name for this energy that the sun continuously emits.
Therefore, Sunlight or solar energy is the sort of energy that component number 1 stands for.
To learn more about solar energy, refer to the link:
https://brainly.com/question/9704099
#SPJ2
The graph illustrates the relationship between photosynthesis and cellular respiration in a plant over the course of 24 hours
Answers
Fossils
.......... do fossils not support the theory of continental drift
Answers
Which part of aerobic respiration takes place between the membranes of the mitochondria?
electron transport chain
lactic acid fermentation
glycolysis
Krebs cycle
Answers
Answer:
it's the electron transport chain
what might happen if the hypothalamus malfunctions and stop sending chemical signals to the pituitary?
Answers
Answer:
If the hypothalamus malfunctions and stops sending chemical signals to the pituitary, hormones may not be released by the pituitary.
give atleast 5 name of seed
Answers
Answer:
Sunflower Seeds
Chia Seeds
Flax
Pumpkin Seeds
Sesame
Pls help, this is science class btw
Think about the meanings of the words "dependent" and "independent" as they relate two variables. What do you think "interdependence" means in terms of organisms that live together in an ecosystem?
Answers
Answer:
Explaination Down Below
Explanation:
Interdependance could mean how the two organisms are two different living things that work in different ways to eachother, yet because of the fact they live together in an ecosystem states the fact they work together to help that ecosystem thrive.
(This is my interpretation, feel free to copy and paste as your answer :))
What is solar day A the time for the stars to complete one revolution B the time for the moon to complete one rotation C the time for earth to complete one rotation D the time for the sun to complete one revolution
Answers
Answer:
the answer is C
HELP PLEASE WILL GIVE BRAINLY!!
What is a complementary RNA strand to TAG?
Answers
Answer:
It's AUC.
Thymine is substituted by Uracile in RNA and it's complementary to Adenine. Citosine is complementary to Guanine
Which factor is a major difference between weather and climate?
A. Time
B. Sustainability
C. Location
D. Impact
Answers
Weather reflects short-term conditions of the atmosphere while climate is the average daily weather for an extended period of time at a certain location. ... Weather can change from minute-to-minute, hour-to-hour, day-to-day, and season-to-season. Climate, is the average of weather over time and space.