Determine whether the following statement is true or false,
The call structure labdest is found only in eukaryotic cells only,
Select one
True
False
Which action would most likely increase the amount of carbon in the environment? A. Choosing to burn coal to generate electricity B. Using energy-efficient appliances in place of older, traditional appliances C. Reusing shopping bags instead of using disposable plastic bags D. Recycling paper and plastic instead of throwing it in the trash
Answer:
Choosing to burn coal to generate electicity
Explanation:
Burning coals to generate electricity is most likely to increase the amount of carbon in the environment because it emits carbon dioxide, hence option A is correct.
Why does burning coals increase the amount of carbon?When coal burns its carbon is combined with oxygen to produce more amount of carbon dioxide, for generating electricity coal burns is producing a large amount of carbon.
If fuel burns its oxygen reacts with carbon in the air forming carbon dioxide or reacts with hydrogen to form water vapor.
Using energy-efficient appliances in place of older, traditional appliances, has less chance to produce excess amounts of carbon in the environment. Recycling things also reduces the amount of carbon in the environment.
Therefore, choosing to burn coal to generate electricity is the correct option.
Learn more about the environment, here:
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Most endocrine tissues use a negative feedback mechanism for homeostasis. Which of the following involves a positive feedback mechanism? Group of answer choices cortisol insulin oxytocin thyroid
Answer:
The correct answer is: Oxytocin.
Explanation:
Feedback mechanisms are key elements in the regulation of hormone release and, in the human body, most endocrine systems work by making use of negative feedback, which means that the response generated by the release of the peripheral hormone (for example, insulin), will lead to an inhibition of the stimulus that made the release of said hormone possible - this is very important to control homeostasis.
Positive feedback, on the other hand, is the opposite. This type of feedback mechanism, which is not as common as negative feedback, happens when the peripheral hormone is released and this stimulates the tissue that released the hormone that stimulated the release of the peripheral hormone - this is done so the hormone effect is amplified more and more.
To better illustrate these mechanisms, here are some examples of each:
Insulin. After having a meal, the blood sugar levels rise, which triggers the release of insulin, a hormone that decreases blood sugar levels (glycemia). When this decrease in glycemia is produced, the release of insulin is stopped. This is negative feedback. Cortisol and thyroid hormones are also examples of negative feedback.Oxytocin. This hormone is released from the posterior pituitary gland during labor to produce the contractions of the uterus, which will push the baby through the birth canal. The presence of oxytocin will lead to the release of more oxytocin, so the muscle contractions can increase. This is an example of positive feedback.Are Lima beans living things?yooo someone help
Answer: No
Explanation: They aren't living, because they perform cellular functions, but they DO have seeds which can be living, because they CAN perform these functions
Answer: Lima beans themselves are not alive but they can potentially grow into life, this goes with all seeds
Explanation: These are the characteristics of life that scientist have classified as the traits all living things share, they can help you determine whether or not something is alive
1. Cellular organization
2. Reproduction
3. Metabolism
4. Homeostasis
5. Heredity
6. Response to stimuli
7. Growth and development
8. Adaptation through evolution
James was sick, went to the doctor, and was diagnosed with a bacterial throat infection. His infection was treated with antibiotics. In a few days, James felt much better, but some resistant bacteria survived and, overnight, James was sick again. This time, he had to take a much stronger antibiotic.
Answer:
See the answer below
Explanation:
The complete question reads: James was sick, went to the doctor, and was diagnosed with a bacterial throat infection. His infection was treated with antibiotics. In a few days, James felt much better, but some resistant bacteria survived and, overnight, James was sick again. This time, he had to take a much stronger antibiotic. The resistant bacterial cells illustrate what characteristic of life?
All living things respond to stimuli.
All living things maintain homeostasis.
All living things adapt to changes in their environment.
All living things contain genetic material and reproduce.
The correct answer would be that all living things adapt to changes in their environment.
Generally, all living organisms try to adapt to changing environments. Those that are able to successfully adapt survive in the environment and are able to produce offspring that are also able to survive in the same environment. Organisms that are not able to adapt to a changing environment end up dying from the population. This is an example of evolution by natural selection - the survival of the fittest.
4 main categories of science??
Answer:
Chemistry
Physics
Maths
Astronomy
Biology
Explanation:
Hope it will help ^_^
What is you were an astronaut and interplanetary explorer and you discovered “something” on another planet,like Mars that reproduced by itself, grew in size, took in food, responded to you or other stimuli, but did not seem to be made of cells or possess DNA or RNA. would you consider it to be living or nonliving?
Answer:
I would consider it to be nonliving
Explanation:
The characteristics of life demarcates a living thing from a nonliving thing. These characteristics include the ability to move, ability to respire, ability to reproduce, ability to undergo nutrition (take in food), ability to respond to external stimuli, ability to grow by increasing in size and more importantly must be made up of at least a single cell. Cell is the fundamental and basic unit of all living things.
This object found in Mars may be able to perform every other characteristics of a living thing e.g reproduction, irritability, growth, nutrition etc but to be considered as a living thing, it must consist of at least one CELL, which in turn must contain either a DNA or RNA molecule that carries information about its genetic content.
Hence, according to the universal CELL THEORY that states that "All living things contains one or more cells", this something found on Mars is not considered living.
What makes amino acids different from each other? (4 points)
Amino group
Carboxyl group
Hydrogen atom
Side chain
Answer:
The answer is side chain/group.
Answer:
d
Explanation:
what is your favourite thing about science ?
Answer:
Science reveals and convinces ourself the causes for any changes in any process that occur!
Your question has been heard loud and clear.
My favourite thing about science is how creative you can be with ordinary things that happen daily. So , its really cool to see new phenomena and know why it happens through science. Im one such boy. I used to watch videos and perform experiments at home for fun , while my family always got angry at me for doing such things. Ah the good old days.
Thank you
Experimental Scenarios
Study Guide
Science
Directions: Read the given scenarios below. Identify each required component for
each scenario.
Scenario 1:
A student is studying how far room temperature water would squirt out of a plastic
milk carton when 4 mm holes are punched at different heights from the bottom of
the container
Describe which are the independent and dependent variables as well as indicates
the constants involved within the experiment and why those are the constants.
Independent Variable:
Dependent Variable:
Constants:
Answer:
Independent variable: height of holes
Dependent variable: distance of squirting water
Constant: size of holes punched into the milk carton
Explanation:
The independent variable is one whose value is often manipulated during the course of experiments and the effects produced by the manipulation is measured on the dependent variable.
The dependent variable is the actual variable that is being measured in the course of experiments. The value of the dependent variable is affected by changing the values of the independent variable.
Constants are variables whose values remain unchanged throughout the course of experiments.
Hence, in the illustration:
Independent variable: the height of holes on the milk carton
Dependent variable: distance of squirting water
Constant: the size of holes punched into the milk carton
Do you have reason to suspect that they should become isolated on the same dilution plate
Answer:
Please see below
Explanation:
Since the bacteria Serratia marcescens kept on growing even with higher dilution levels, it can safely be concluded that no, E. coli and S. marcescens would not become isolated on the same plate. The inoculum used should roughly contain 300 cells in order for it to not grow in clumps, rather make separate colonies.
a. Tendrils encircle or coil around the object in contact with it. Justify.
Answer:
Tendrils encircle or coil around the object in contact by the property known as thigmotropism. When a tendril comes in contact with the support, here the support acts as stimulus which triggers the growth of cells that are situated on opposite side of the support of tendril.
Why goosebumps are formed?????
Answer:
because of cold
pl mark it as the brainliest
Answer:
The reflex is started by the sympathetic nervous system.
the teacher will punish him change voice
[tex]\Huge{\fbox{\red{Answer:}}}[/tex]
Sentence Given :The teacher will punish him
Passive Voice :He will be punished by the teacher
Answer:
He will be punished by the teacher.
Explanation:
An atom has an atomic number 17 and atomic mass number 35. How many neutrons are present in its nucleus?
О А.
17
OB.
18
C. 35
Answer: This is called chlorine
Explanation: 18
Hey Guys! ^^ Here's A Question, Why does a dog circle around its bed before lying down?
Answer:
it needs somewhere comforatible
Explanation:
When they circle around they need to get that space soft and then they will lay down
how are extrusive and intrusive rocks alike
Answer:
Intrusive igneous rocks crystallize below Earth's surface, and the slow cooling that occurs there allows large crystals to form.
Explanation:
intrusive igneous rocks are diorite, gabbro, granite, pegmatite, and periodontist. Extrusive igneous rocks erupt onto the surface, where they cool quickly to form small crystals.
compare the hazards (ultraviolet waves, X-rays, Gamma rays)
justify this statement"rearing of silk upgrades the economic condition of individuals and the nation."
Answer:
Due to good price of silk in the market.
Explanation:
Rearing of silk upgrades the economic condition of individuals and the nation because silk has a high price in the market due to its demand in various industries. Silk is used in various products such as clothing, tires, parachute and surgical suture etc. When the silk is sold at good price, it automatically better the economic conditions of both the individuals who done rearing of silk and the country also earn money by export to other countries.
Drag each tile to the correct box.
Arrange the events in the order they likely occurred according to the giant impact theory.
A Mars-sized planetesimal collides with
Earth.
Material accretes to form the Moon
Molten material is ejected from Earth,
The Moon begins rotating and revolving
around Earth
Answer:
Please see below
Explanation:
The statements have been rearranged to give the likely order of events that occurred:
A Mars-sized planetesimal collides with Earth. Molten material is ejected from EarthMaterial accretes to form the MoonThe Moon begins rotating and revolving around EarthIt begins with a collision. Once the material is ejected away from the earth, it will come together to form what we call as the moon. After formation, it id held within the gravitational field of the earth and it begins to revolve around it because of that.
What is Cross-pollination.
Answer:
This is the pollination of a flower with pollen from another flower.
Explanation:
This is under the type of pollination.
Hope it helps.
Answer:
pollination of a flower or plant with pollen from another flower or plant.
Explanation:
gravity on the moon's surface is 1/6 the gravity on earth's surface. what would a person who weighs 690 N on earth weigh on the moon?
Answer:
76.66666666
Explanation:
690
[tex] 690\times \frac{1}{6} [/tex]
that gave 76.66666
which shows a correct order of steps in the scientific method?
A. make observations, draw conclusions, develop a hypothesis, analyze data.
B. develop a hypothesis, analyze data, draw conclusions, make observations
C. make observations, develop a hypothesis, analyze data, draw conclusions
Answer:
The correct one is the last one. The one that has the blue dot right beside it in the picture!
Explanation:
I think thats it hope its correct
Answer: question, research, hypothesis, experiment, observation, conclusion
Explanation:
please please help!!
Answer:
1
Explanation:
What is one reason why we have homes? what do they do?
Answer:
They serve us as shelters.
It protects us from many natural hazards like, rain,heat etc.
It provides a privacy to every person.
Answer:
One reason why we have homes is to give us shelter.
Explanation: Homes protect us from weather like storms, extreme cold, extreme hot. Also, we can live in our own space with homes and not be squeezing together outside. Also, with homes, we have a safe place to sleep at night, because it wouldn't be good to sleep on the road
If you find an object
that looks like an organism, how might you
determine if your discovery is indeed alive?
Answer: If it does any of these it is alive: order, sensitivity or response to the environment, reproduction, adaptation, growth and development, homeostasis, energy processing, and evolution.
Explanation: Since all organisms share several key characteristics or functions: order, sensitivity or response to the environment, reproduction, adaptation, growth and development, homeostasis, energy processing, and evolution. When viewed together, these characteristics serve to show you that, your discovery is indeed, alive.
What properties of life do viruses have? What properties do they lack?Do you think viruses are alive? Why or why not? Someone help please!!!!
Explanation:
properties that virus have on life are virus are infectious agents with both living and non living characteristics.
the property that they lack is they don't grow, they lack hamoestasis, and they don't metabolize.
the viruses are alive when they enter inside the body and not alive when they are outside the body hence u can say both.
I helped you the that I know.
thnx
what is the role of hormones in animals
Hypothalamus Gland
Gonadotropin-releasing hormone (GnRH)
Stimulates Pituitary gland to release gonadotropin
Pituitary Gland
Growth hormone Regulates body growth
Thyroid Gland
Thyroxine
Regulates body metabolism
Pancreas Gland
Insulin and Glucagon
Regulates blood sugar level
Adrenal Gland
Epinephrine
Regulates heart rate and blood pressure
Testes
Testosterone
Development of sperms and male characteristics
Ovaries
Estrogen and Progesterone
Development of eggs and female characteristics
Describe what you observe in
the petri dish
What is Petri dish
what is eco system?write with an examples.
Answer:
a biological community of interacting organisms and their physical environment.
Explanation:
Hey, there!!
We generally define eco-system as the ecological unit which consists of both biotic and abiotic components. It is area where various type of plants, animals and non- living structures are found. Various organisms and environmental factor collectively forms an eco-system.
Example: sun gives light and plants prepare their food which later on animals consume to get engry. In this way they interact with eachother.
Hope it helps...