What is a defining feature of mammals that is not present in most other vertebrates?


A. Mammals can produce milk for their offspring.

B. Mammals maintain a constant body temperature.

C. Mammals reproduce through internal fertilization.

D. Mammals have a nervous system with a spinal cord.

(Pls I need help!)

Answers

Answer 1

Answer:

The correct answer is C. Mammals can produce milk for their offspring.

Mammals are the members of class mammalia. The word mammalia was derived from Latin word "mamma" which means "breasts" as they had a unique feature i.e. presence of mammary glands.

These glands were evolved from a special types of sweat glands and became specialized in the production of milk, especially in females.

They help the mothers in providing nourishment to the offspring.

Other features of mammals may include four chambered heart, hair and fur, three middle ear bones, etc.

Explanation:


Related Questions

Arrange these structures in order of lower level of organization to upper level and write the level against each structure. neuron , nervous system , electron , man , mass of neuron , carbon , mitochondria , brain , protein

Answers

Answer:

electron, carbon, protein, mitochondria, neurons, mass of neuron, nervous system, brain, man

please help me .Is platypus a mammal or a bird​

Answers

Answer:

Platypus is an mammal.

Explanation:

Because platypus cannot fly, and lays eggs. It does not live in nests, but in holes on the ground. The parents platypuses can have venom but the smaller ones do not have venom. This is why they are threatened by other animals.

Hope this helps....

Have a nice day!!!!

When making bread why is the dough left in a warm place for a while before putting it in the oven

Answers

Answer:

so that bread will rise when heating

Explanation:

the yeast will activate and be ready to produce gases when baking

Rima eat guava explain how the teeth tongue and sliva will help to break it down​

Answers

Answer:

Please find the role of teeth, tongue and saliva in digesting guava below

Explanation:

Digestion is generally the process of breaking down complex food substances into their simplest form. However, as easy as this sounds, there are series of processes that must take place in between to achieve the final result.

Once a food substance like guava enters the mouth (ingestion), it initially gets chewed by the TEETH in order to break it down to smaller masses that can be swallowed. During the process of chewing, the TONGUE helps to move the food around the mouth and later helps push it down the gullet/digestive tract. SALIVA, on the other hand, creates a moisturizing environment for the food to form a Bolus (round mass of food ready to pass down the esophagus). The saliva also contains an enzyme called AMYLASE that helps chemically degrade starch content of the food before passed through the digestive tract.

I need help im not understanding what to do.

For this assignment, you'll be creating a document or project. Now that you have an idea of the organ systems in the human body, it’s time to choose one that interests you the most. Use the links below to find detailed information about the organ system you choose. You will use this information to create a poster in Glogster or PowerPoint that illustrates the major facts and details of the system you chose. To make it fun and interesting, create a “ Travel Guide” that takes the reader through the system, detailing the organs in that system and what they do for the body.


To complete this assignment follow these steps: Choose your organ system to profile. Research the following information about your organ system: Short description of the organ system: What does the “organ system” do? (IE: endocrine system) How is the system organized? What are the major organs in this system? What is the main or most important organ in the system? How do these organs work together to do what they do? What are the functions in the human body that are done by this organ system? What would happen to the body if this organ system “failed”, or didn’t work right? Use the links to websites to gather that information. Save any graphics you want to use in creating your Poster.
If you choose Glogster: Go to Glogster and follow their instructions in setting up an account. It’s easy and it’s free. Watch the tutorial and then get started!

Answers

Answer: Here's a power point on the endocrine system. I hope this helps.

Explanation:

Why is mitosis important to all living things?

Answers

Answer: It's important because mitosis helps living things grow and replace  old or damaged cells.

Which element is being cycled through Earth's system in the image shown
below?
Fossil fuels
Cellular
respiration
Photosynthesis
Animals
Plants
Industry and Home
Death and
decay
A. Oxygen
B. Nitrogen
c. Hydrogen
O D. Carbon

Answers

I took this quiz about 2 weeks ago but I forgot the answer. I think it was Carbon but you shouldn’t trust me till someone confirms it
carbon! hope this helps!!

Which of the following is a distinct structure found specifically in the liver, spleen, and bone marrow?
Select one:
a. Sinusoidal capillaries
b. Fenestrated capillaries
c. Venous sinus
d. AV anastomoses
e. Continuous capillaries​

Answers

Answer:

option A is correct

Explanation:

I high statement best describes the scientist who contributed to our current body of scientific knowledge

Answers

Answer:

See the answer below

Explanation:

First, it may seem that the question is with a typographical error. I guess you wanted to ask, "Which statement best describes the scientist who contributed to our current body of scientific knowledge?"

To answer the question, anyone that has engaged in research following the established scientific method and was able to report the findings from the research by publishing it in a recognized journal has contributed to our current body of scientific knowledge.

In this regard, men and women of all races, through time have contributed to our current body of scientific knowledge.

Eye color is an example of 1. Transcriptional control 2. gene expression 3. translational control 4. gene regulation

Answers

Answer: Gene expression

A biologist counts the number of rabbits in a population each year and observes a decrease in population. Since the coyote population has exploded, the biologist concludes that the coyote population has had a negative impact on the rabbit population. Which describes the biologist’s actions?

Answers

Options:

A.) experimentation

B.) inference

C.) observation

D.) interacting

Answer:

B. Inference

Explanation:

Inference is a logical conclusion that is arrived at, judging from the facts and and evidence we already know and see.

In the case above, a decrease in rabbit population and explosive of the population of the coyote are premises that the biologist basses his logical conclusion on, stating that, the population of coyote has a negative impact on rabbit population. This could also be termed "an educated guess".

Answer:

B

Explanation:

took the test got 100

Ultra-high-temperature sterilization effectively reduces microbes that cause spoilage. removes only mesophilic microbes. reduces microbes that cause disease. removes all microbes that cause diseases or spoilage. reduces microbes that cause disease or spoilage.

Answers

Answer:

kills all microbes that cause disease or spoilage.

Explanation:

There are different methods of sterilization, such as ultraviolet radiation, autoclave mechanisms, etc.

The sterilization mechanisms eliminate the microorganisms completely, thus generating sterile surfaces.

These mechanisms are used with surgical instruments, the operating room environment.

The autoclave method is the most widely used today due to its economical price, its ease of use and its practicality.

Sterilization methods must be strictly controlled with pilot or test microbiological cultures to be able to corroborate that these mechanisms function correctly, since otherwise they could trigger strong pathologies due to cross contamination.

Which space exploration activity has most helped astronomers determine the age of the solar system?

collection of lunar rock samples

experiments performed on the International Space Station

placement of mirrors on the lunar surface

collection of deep space images by the Hubble telescope

Answers

The best answer about the space exploration activity that has helped astronomers determine the age of the solar system is :  Collection of Lunar rock samples ( option 1 )

There are several exploration activities in which astronomers partake when they visit the solar system and they include :

experiments on the space station, placement of mirrors on the lunar surface and the collection of space images

But to determine the age of the solar system, collection of rock samples is the best activity, because rocks (one of the first substances found in the solar system )  are as old as where they are found.

Hence the space exploration activity that has helped astronomers determine the age of the solar system is the collection of lunar rock samples

learn more : https://brainly.com/question/21668746

Answer:A

Explanation:Collection of lunar rock samples will help understand the moon more than the other options.

During the process of translation in a eukaryote messenger RNA is spliced in the nucleus. amino acids are synthesized by RNA polymerase. transfer RNAs are joined together by a large enzyme complex. ribosomes must be imported into the nucleus. mRNA interacts with ribosomes in the cytoplasm.

Answers

Answer:

mRNA interacts with ribosomes in the cytoplasm.

Explanation:

The correct option would be that mRNA interacts with ribosomes in the cytoplasm.

Translation involves the use of genetic codes in mRNA to synthesize amino acids that are eventually linked together by polypeptide bonds to form proteins.

During translation, the mRNA synthesized in the nucleus is transported into the cytoplasm where it gets attached to the ribosome and another RNA - the tRNA. The codons on the mRNA eventually match with the anticodon of the tRNA with the later releasing the amino acid that corresponds to each codon.

Hence, the correct answer out of all the options is that mRNA interacts with ribosomes in the cytoplasm.

PLEASE ANSWER QUICKLY Which statement about cell theory is INCORRECT? New cells are spontaneously created from existing cells. All organisms are composed of one or more cells. Cells are the basic unit of life and structure. New cells are created from existing cells.

Answers

Answer:

New cells are spontaneously created from existing cells

Explanation:

In the 1830's, three scientists namely: Matthias Schleiden (a botanist), Theodor Schwann (a zoologist) and Rudolf Virchow proposed the Unified cell theory. In this theory, three parts were universally accepted and they are as follows:

1) Cells are the fundamental and basic unit of all life and structure.

2) All living organisms are made up of one or more of these cells.

3) New cells arise from already pre-existing cells.

These three parts are the widely accepted parts of the cell theory. Although, it was once believed that new cells arose from inorganic matter. This theory, called spontaneous generation or abiogenesis was later disapproved.

Therefore, the statement that, "new cells are spontaneously created from existing cells" is not a part of the CELL THEORY.

Which of these questions can be answered using science? Is human travel beyond our solar system possible? Should the use of green energy be increased? What is the best vacation spot? Which is the best online store?

Answers

Answer:

"Is human travel beyond our solar system possible?" can be answered using science.

Explanation:

I just took the test.

Hope this helps! - J

The question that can be answered by science is "Is human travel beyond our solar system possible". Thus, the correct option for this question is A.

What is Science?

Science may be defined as a branch of scientific study that involves the application of knowledge and understanding of the natural and social world following a systematic methodology based on evidence.

It can broadly be classified into three categories such as Physics, Chemistry, and biology. Each sub-classification illustrates its own field of detailed study.

Science always deals with the concept of nature as well as natural phenomena. So, among the given options, the solar system is an important component of it.

The answer to this question is little bit complex but definitely the answer should be determined with the help of science only.

Therefore, the question that can be answered by science is "Is human travel beyond our solar system possible."

To learn more about Solar system, refer to the link:

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The first seismic waves to reach seismograph stations move in a push-and-pull motion. They are called
Love waves
secondary waves
primary waves
surface waves

Answers

Answer:

primary waves

Hope this helps :)

Answer:

hi, your answer is... primary waves.

What evidence supported the Davson-Danielli model for the cell membrane?
A. Electron micrograph pictures showing a blue center surrounded by 2 layers.
B. Presence of proteins that was unaccounted for.
C. Diffusion models predicted fluid flowing into the cell at a rate consistent with their model.
D. Electron micrograph pictures showing 2 separate layers.

Answers

The answer is A

Electron micrograph pictures showing a blue center surrounded by 2 layers.

A. Electron micrograph pictures showing a blue center surrounded by 2 layers.

What is the importance of cell membranes?

The plasma membrane, or the cellular membrane, gives safety for a mobile. It also gives a fixed surrounding in the mobile. And that membrane has numerous distinctive features. One is to move nutrients into the cell and additionally transport toxic materials out of the cell.

What are the functions of the cell membrane?

identification, communication, regulation of solute exchange through the membrane,isolation of the cytoplasm from the external environment.

Learn more about cell membranes here: https://brainly.com/question/1768729

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Which statement describes the role of the organism indicated by the blue arrow in the food web?
A secondary consumer that obtains its energy from the consumption of plants
A primary producer that recycles organic molecules from sunlight
A primary decomposer that recycles organic molecules by breaking them down
A primary consumer that obtains its energy from the consumption of plants

Answers

Answer:

A primary consumer that obtains its energy from the consumption of plants

Explanation:

Organisms that eat the producers are the primary consumers. In this case, the producer is the grass, which is then eaten by the primary consumer, the meadow vole.

Why is environmental science important?

Answers

Explanation:

it is where we live and share resources with order species

I hope this was helpful

which best describes bacterium?

Answers

Answer:

Bacteria (singular: bacterium) are classified as prokaryotes, which are single-celled organisms with a simple internal structure that lacks a nucleus, and contains DNA that either floats freely in a twisted, thread-like mass called the nucleoid, or in separate, circular pieces called plasmids. Hope this helps :))

Explanation:

Answer:

Bacteria are classified as prokaryotes, which are single-celled organisms with a simple internal structure that lacks a nucleus, and contains DNA that either floats freely in a twisted, thread-like mass called the nucleoid, or in separate, circular pieces called plasmids.

Explanation:

A student finds that the mass of 25mL of an unknown liquid is 20.5g. What is the density of this substance?

Answers

Answer:

Density, [tex]d=0.82\ g/cm^3[/tex]

Explanation:

It is given that,

Mass of unknown liquid is 20.5 kg

Volume, V = 25 mL

We know that, 1 mL = 1 cm³

25 mL = 25 cm³

The density of the substance is equal to its mass per unit volume. So,

[tex]d=\dfrac{m}{V}\\\\d=\dfrac{20.5\ g}{25\ cm^3}\\\\d=0.82\ g/cm^3[/tex]

So, the density of this substance is [tex]0.82\ g/cm^3[/tex].

Answer:

0.82

Explanation:

just took test

Explain the statement-“viruses are the link between living and non-living”.

Answers

Answer:

this is because they appear dead outside and alive inside beings

Plsss helppppp ASAP
Will give extra 20 points

Answers

1) 2

2) 3

3) The type of pot or soil does matter

4) Using different types of soils, fertilizers, pots and putting them in different places

5) I'm sorry but I can't draw the graph

Which of the following is not a negative consequence of upward urban growth?
a pollution
b creation of a "heat island"
C. increased use of surrounding land
d. waste management issues
Please select the best answer from the choices provided
A
OOOO

Answers

Answer: I believe its C

Explanation:

Answer:

C. increased use of surrounding land

Explanation:

Edge2021

What substances transported by plants 1) xylem vessels and trachieds? 2) sieve tubes of phloem?

Answers

Answer:

Explanation:

xylem vessels transport water and nutrient from roots to the other parts of the plant

trachieds are elongated in the xylem of vascular plant that play role in the transport of water and mineral salt

seive tube are the elongated living cells of the phloem in the flowering plant  they are the conduits of food (mostly sugar) transport

How the population environment and health are related with different aspects? Elaborate

Answers

Answer:

The aspects of that natural resources like air, water, soil etc aspects include the existence,these aspects of population health and environment.

Explanation:

Population environment and the health is to the approach human development to conservation, health, population is the deep relationship that not only related to each other.

population environment or health is the process can perform effect of population growth in health and environment aspects, other hand population controlled balanced a environment, produce healthy people.

Biological aspect :- health and population are related with the biological aspects of that environment, health, and population aspects of environment related to each other.

Social aspects:- social and cultural aspects like to the festivals, tradition living standards  aspects environment, population and health are related each other.

Physical aspect:- the development construction bridge,canals, industries that are physical environment, these aspect interrelated health and population.

Economic aspect :- economic aspect is reflected by the health of the people,resources like water, plants, land.  

please help me. I been stuck on this question for a long time :(​

Answers

Answer:

Explanation:

1. Climate change is caused by changes in the earth's atmosphere in the amounts of greenhouse gases released into the air. Some scientists believe that 100% of global warming is due to humans. The largest contribution comes from burning fossil fuels because it releases carbon dioxide gas to the air, which is done by humans. Other factors that contribute to climate change include:

>Deforestation- clearing out trees affects wildlife, ecosystems, whether patterns. Forests cover 30% of the lands mass and clearing them leaves many animals without homes.

>Waste from factories- they release tonnes of toxic fumes into the air.

> Agriculture and farming- this is a surprising contributing factor to global warming. Animals produce a greenhouse gas called methane and when livestock are grazed at a large scale, the amount of methane produced is a big contributor to global warming.

     Some fertilizers release nitrous oxide, which is another greenhouse gas.

2. The effects of global warming include:

    >Melting glaciers- this leaves many animals without homes and it also causes a rise in sea levels which causes flooding. (that's 3 effects)

    >Worsening droughts- this leaves many humans to die as they have no food or water.

    >Increasing tornadoes

okay that's all i could do... hope it helps.

A(n) _______
is a special type of scientific investigation
that is performed under controlled conditions typically
including a dependent and independent variable.

Answers

Answer:

experiment

Explanation:

When you are controlling the conditions it is called an experiment.

An experiment is a special type of scientific investigation that is performed under controlled conditions typically including a dependent and independent variable.

What is scientific investigations?

A scientific investigation is a strategy for posing questions as well as testing potential responses.

Anecdotes are usually the starting point for a scientific investigation. Observations frequently generate questions.

Based on scientific knowledge, a hypothesis is a possible logical answer to a scientific question.

The goals of scientific research are to generate knowledge and provide explanations.

Science investigations are carried out in a variety of settings and by a wide range of individuals. Scientific investigations are carried out in a variety of ways that focus primarily on the collection of various types of evidence.

Thus, an experiment is a sort of scientific investigation which takes place under lab settings and generally involves a dependent as well as independent variable.

For more details regarding scientific investigations, visit:

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what factors do you think determine the age of the universe

Answers

The trees being so tall, eruption on rocks shows that the earth has aged, and weathering. Because scientists can track down years from these things listed
Other Questions
2. According to this article, whathappens to a person's sense ofindividuality when they follow alarger group?A It shuts down.B It grows weaker.C It grows stronger.D It remains the same. a westward moving motorcycle slows down from 24.0 m/a to 12.0 m/s in 3.0 seconds. what is the magnitude and direction of the acceleration Which object forms when a supergiant explodes?a red gianta black holea white dwarfa neutron star Determine the present values if $5,000 is received in the future (i.e., at the end of each indicated time period) in each of the following situations: percent for ten years percent for seven years percent for four years Assume you are planning to invest $5,000 each year for six years and will earn 10 percent per year. Determine the future value of this annuity if your first $5,000 is invested at the end of the first year. Determine the present value now of an investment of $3,000 made one year from now and an additional $3,000 made two years from now if the annual discount rate is 4 percent. What is the present value of a loan that calls for the payment of $500 per year for six years if the discount rate is 10 percent and the first payment will be made one year from now? How would your answer change if the $500 per year occurred for ten years? Determine the annual payment on a $500,000, 12 percent business loan from a commercial bank that is to be amortized over a five-year period. Determine the annual payment on a $15,000 loan that is to be amortized over a four-year period and carries a 10 percent interest rate. Also prepare a loan amortization schedule for this loan. Assume a bank loan requires an interest payment of $85 per year and a principal payment of $1,000 at the end of the loan's eight-year life. At what amount could this loan be sold for to another bank if loans of similar quality carried an 8.5 percent interest rate? That is, what would be the present value of this loan? Now, if interest rates on other similar-quality loans are 10 percent, what would be the present value of this loan? What would be the present value of the loan if the interest rate is 8 percent on similar-quality loans? intext:"A corporation issued 6,000 shares of its $2 par value common stock in exchange for land that has a market value of $84,000. The entry to record this transaction would include" Let f (x) = x 4 and g(x) = 6 - xEvaluate g(f(10)). The Tran family and the Green family each used their sprinklers last summer. The water output rate for the Tran family's sprinkler was 35L per hour. The water output rate for the Green family's sprinkler was 40L per hour. The families used their sprinklers for a combined total of 50 hours, resulting in a total water output of 1900L. How long was each sprinkler used? To bake 12 cookies, I use 2 quarts of milk. There are 2 pints in a quart. How many pints of milk do I need to bake 3 cookies? find the LCM of two numbers if there product is 160 and hcf is 4. The force of gravity on an object varies directly with its mass. The constant of variation due to gravity is 32.2 feet per second squared. Which equation represents F, the force on an object due to gravity according to m, the objects mass? F = 16.1m F = F equals StartFraction 16.1 Over m squared EndFraction. F = 32.2m F = F equals StartFraction 32.2 Over m squared EndFraction. SkyChefs, Inc., prepares in-flight meals for a number of major airlines. One of the companys products is grilled salmon in dill sauce with baby new potatoes and spring vegetables. During the most recent week, the company prepared 5,100 of these meals using 2,000 direct labor-hours. The company paid its direct labor workers a total of $28,000 for this work, or $14.00 per hour. According to the standard cost card for this meal, it should require 0.40 direct labor-hours at a cost of $13.50 per hour. Required: 1. What is the standard labor-hours allowed (SH) to prepare 5,100 meals? 2. What is the standard labor cost allowed (SH SR) to prepare 5,100 meals? 3. What is the labor spending variance? 4. What is the labor rate variance and the labor efficiency variance? (For requirements 3 and 4, indicate the effect of each variance by selecting "F" for favorable, "U" for unfavorable, and "None" for no effect (i.e., zero variance). Input all amounts as positive values. Do no round intermediate calculations.) a country region that has a separate geographic territory A train covered a certain distance at a uniform speed. If the train would have been 6km/h faster, it would have taken 4 hours less than the scheduled time. And, if the train were slower by 6km/h, it would have taken 6 hours more than the scheduled time. Find the length of the journey. Refer to the Newsela article "Health Benefits of Reading, Writing, Are Not Just for Patients." Read the text under the heading Using Our Imaginations. Which evidence supports the statement "People who read stories are better at sharing and understanding other people's feelings"? Select the two correct answers. "Reading stories is a chance for children and adults to talk about the complicated parts of life, Mar says." "He found that children and adults who have read stories their whole lives were more likely to correctly identify the feelings and thoughts of others than those who do not read regularly." "Trying to understand these characters exercises the same mental muscle that helps us understand people in the real world." "He studies the effect reading fiction and nonfiction has on our ability to understand what others are feeling." plz hurry A paper company needs to ship paper to a large printing business. The paper will be shipped in small boxes and large boxes. 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True False Simplify 3 x times the fraction 1 over x to the power of negative 4 times x to the power of negative 3.