What are the main characteristics of amphibians?

Answers

Answer 1

Answer:

Amphibians are small vertebrates that need water, or a moist environment, to survive. The species in this group include frogs, toads, salamanders, and newts. ... The larvae are aquatic and free-swimming—frogs and toads at this stage are called tadpoles. At a certain size, the young develop limbs and lungs.

Explanation:

Answer 2

Answer:

undergo metamorphosis.,coldblooded and absorb water and undergo gas exchange


Related Questions

what is the resistance of a car light bulb that conducts 0.025 A current when connected to a 12 V car accumulator? Is the current in the bulb steady?

Answers

Answer:

R = 480 Ohm

Yes, the current is steady since the power supply is a constant 12V (comming from the battery).

Explanation:

U=I*R

R = U / I

U = 12 V

I = 0.025 A

R = 12 / 0.025

R = 480 Ohm

Resistance=voltage/current
=12/0.025
=480 Ohms

The populations living on a rough, steep mountain would have a higher rate of
speciation than those living in a large, open grassland because the mountain
would
A. show less habitat fragmentation
B. provide its populations with more resources
C. isolate populations into subgroups
D. have fewer niches for organisms

Answers

Answer:

The correct answer is option C, that is, have a wider range of environments.

Explanation:

It has been known that geographic isolation is a general way for the initiation of the process of speciation, like the rise of mountains, rivers changing course, migration of organisms, continental drift, due to this what was once a steady population gets differentiated into two or more kinds of smaller populations.  

A mountain range, due to distinctions in temperature and precipitation as a result of different altitudes, can lead to a higher rate of speciation. Due to these differences, a single mountain range can exhibit an enormous array of biodiversity and climate zones.

In comparison to populations living in broad, open grasslands, populations living on rocky, steep mountains would experience a higher rate of speciation due to the mountain's ability to divide populations into smaller subgroups . So, the correct option is C.

How the population have higher rate of speciation?

Geographic isolation is known to be a common way for the beginning of the process of speciation, similar to the formation of mountains, the alteration of rivers, the migration of organisms, and continental drift. As a result, what was once a stable population becomes divided into two or more different kinds of smaller populations.  

A mountain range might result in a greater amount of speciation because to differences in precipitation and temperature as a result of various altitudes. A single mountain chain can display a huge variety of biodiversity and temperature zones as a result of these variances.

Therefore, the correct option is C.

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How are plants pollinated?

Answers

Answer:

People can transfer pollen from one flower to another, but most plants are pollinated without any help from people. Usually plants rely on animals or the wind to pollinate them. When animals such as bees, butterflies, moths, flies, and hummingbirds pollinate plants, it's accidental. hope that helps love!!

Energy Distribution provides utilities, which are
career advancement opportunities.
services provided to people and organizations.
materials provided to people and organizations.
products for commercial consumption first.

Answers

Answer:

services provided to people and organizations

Energy Distribution provides utilities, which are products for commercial consumption first.

How Energy Distribution provide utilities?

The most common media used to distribute energy are steam, air, hydronics and electricity.

These form of media creates products like electric power that offer services and career advancement opportunities.

Whereas hydronics provides utilities to people and organizations.

Hence Energy Distribution provide utilities to products for commercial consumption first.

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please help Mark and Vikki live in two different areas of North America. The temperature in Mark’s town today is 30°F. The temperature in Vikki’s town is 82°F. In both towns, the relative humidity is 90%. Is the amount of water vapor in the air the same in Mark’s and Vikki’s towns? Explain your answer.

Answers

Answer:

I think that the amount of water vapor in the air will be different because in Mark's town, it is cold and water in the clouds might turn to ice and come down as snow. And in Vikki's town, it is very warm so the water vapor might come down as rain.

I hope this helped! I was in a rush but I'm positive that this is correct.

Which of the following types of training would most likely be required for a forest technician?
A. genetic analysis
B.animal physiology
C.plant life cycles
D.Menghting

Answers

Answer:

C. plant life cycles

Explanation:

Answer:  The correct answer is C.plant life cycles

Explanation:  This answer has been confirmed correct.

Animal behavior is based on

Answers

Answer:

satisfying physiological needs

Explanation:

satisfying personal needs

The larger pool of subjects from which a study group is chosen is called the
A representation
B. population
C. sample
D. research subjects
Please select the best answer from the choices provided
A
B
D

Answers

Answer:

B. population

B. Population

Hope this helped :0)

3. What can you learn about soil and air from looking at your graphs and your answers above? .

Answers

Answer:

Explanation:

Hope this helps you

Answer:

k

Explanation:

that is correct because i did that a few years ago

7.Cells of a particular organism are dying at an incredible rate. Under a microscope, doctors are able to determine that the cells
are swelling up with waste and bursting. What must be true of the cells?
O A. They are not synthesizing needed proteins.
B. The cell membrane has become completely permeable.
O C. They are no longer able to produce ATP molecules.
D. They are unable to perform exocytosis.

Answers

Answer:

The cells specialization is what give the cell the ability to survive amongst other cells, without it the cell would not be able to survive. This is a cells means of survival.

Explanation:

none

Jordan's grandmother uses the juice from squeezed lemons to remove stains from his shirt. He hypothesizes that the juice is the only part of the lemon that is effective at removing the stains, because it’s an acid. Which two steps would help Jordan determine whether his hypothesis is scientifically supported?

Answers

Answer: I would say The hypothesis that the juice of the lemon is the only pat of lemon that is capable of removing stains from the t-shirt is because the lemon juice is acidic in nature.

1.) To test the validity of this hypothesis he should test the acidity of different parts of the lemon including the juice, pulp and skin of lemon.

2.) He should also compare the lemon juice with other juices to know weather other juices are also helpful in removing stains from the t-shirt.

( I hope this helped <3 )

Fill in the blank!
The ocean is the____
ecosystem in the world.
A. Shortest
B. Smallest
C. Longest
D. Largest

Answers

Answer:

Largest

Explanation:

It is the largest biome in the world.

Answer: D

Explanation: It covers around 71% of the world.

Why is it necessary for plants to adapt?

Answers

Answer: So they can live and grow.

Explanation: Plants have adaptations to help them survive (live and grow) in different areas.  Adaptations are special features that allow a plant or animal to live in a particular place or habitat. These adaptations might make it very difficult for the plant to survive in a different place.

Food is moved along the digestive system by muscles in the :

I) oesophagus
II) stomach
III) small intestine

A : I only
B : I and II only
C : I and III only
D : All of the above

Answers

D) All of the above :)

Answer:

D. All of the above

Explanation:

The digestive system as a whole is made of muscles for moving of food further. The contraction and relaxation of the muscles enable the food to pass forward.

What does it mean to make a prediction?

Answers

Answer:

A prediction is when you believe that something is going to happen. Example: I predict that someone will answer this before me.

Predictions can either be right or wrong.

When you believe something is going to happen

A scientist decides to study the effect of salt on a particular type of bacteria. Arrange the steps of the scientific method in the correct order to
show how the scientist would proceed with his work.
The scientist asks the question,
Does salt help the growth of
these bacteria?
>
The scientist puts the bacteria in
three different environments:
high salt, medium salt, and low salt.
A microbiologist notices that
some bacterial species thrive
in salt water environments.
The scientist forms a hypothesis
that higher concentrations of salt
may increase the growth of these
types of bacteria.
The scientist publishes his report
in a scientific journal.

Answers

Answer:

yes it does help the growth of bacteria.

The correct order of the steps of the scientific method to show how the scientist would proceed with his work are: 2 - 3 - 4 - 5 - 6 - 7

What is the scientific method?

A microbiologist notices that some bacterial species thrive in salt water environments.The scientist asks the question, Does salt help the growth of these bacteria?The scientist forms a hypothesis that higher concentrations of salt may increase the growth of these types of bacteria.The scientist puts the bacteria in three different environments: high salt, medium salt, and low salt.The scientist collects and analyzes the data obtained from the experiment.The scientist draws a conclusion based on the results of the experiment.The scientist communicates the results and conclusions to the scientific community by publishing a report in a scientific journal.

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What are characteristics of adhesion, examples of adhesion, examples of things that are non-adhesive in science?

Answers

Answer:

adhesion is when a molecule is attracted to a surface or other things. An example is how water glides on a glass when it falls down. The water is adhesive to the glass.

Answer:

shear adhesion

Explanation:

on edu

Which of the following environmental conditions is most likely to be a stressor for plants?

A. Extreme temperature
B. Too much oxygen
C. Low salinity
D. Too much carbon dioxide

Answers

Answer: C

Explanation:

answers C !! just answered it

Cells in the body use oxygen
for cellular respiration. Which is the result of cellular respiration?
ATP is produced, and carbon dioxide (CO2) is released.
ATP is consumed, and carbon dioxide (CO2) is released.
ATP is consumed, and carbon dioxide (CO2) is absorbed.
ATP is produced, and carbon dioxide (CO) is absorbed.

Answers

Answer:

A

Explanation:

Cellular respiration is done in the mitochondria, the powerhouse of the cell. Their job is to create ATP, and that eliminates B and C. Carbon dioxide is created as waste, then its released that is why we breathe OUT CO2

I hope this helps u! ;)

Pls give brainliest (I had 40 down to 3 for no reason) and a thanks ;)

I will thank u via profile thanks and comments :)

Answer:ATP is produced, and carbon dioxide (CO2) is released.

Explanation:

How is cellular respiration related to photosynthesis?

A: sugars produced in photosynthesis are digested in cellular respiration
B: sugars produced in photosynthesis are broken down into glucose through cellular respiration
C: Energy produced in photosynthesis is used to make proteins through cellular respiration
D: energy produced in photosynthesis is put into a usable form through cellular respiration

Answers

It’s 100% A...........

Answer:

I belive its B

Explanation:

look at the picture,hope this helps

A forest fire in Florida clears thousands of acres of trees. What is the most likely consequence for the animal populations in the surrounding area?

Answers

Answer:

Explanation:

they would die or suffer

what are 3 things that are not nucleotides in science

Answers

Answer: plants , water , and rocks

Explanation:

Plants water and rocks

A student has to perform an experiment on the effect of heat on a particular chemical which can be seen in the form of a color change. Which
section of his lab report will include the color change in that chemical?
А. Title
B. Conclusions
C.Results

Answers

The answer is c. The results

true or false. if false, cross off a word and rewrite to make it true.
1. ___applying an ecosystem-service based approach can increase agricultural productivity.

Answers

Answer:

True

Explanation:

Stewardship can always put a positive effect on the environment.

On the world map above, which hemisphere is highlighted? A. the Southern Hemisphere B. the Western Hemisphere C. the Eastern Hemisphere D. the Northern Hemisphere

Answers

Answer:

D.

Explanation:

The highlighted hemisphere is the northern hemisphere.

Answer:

D. the Western Hemisphere

Explanation:

What is the difference between sedimentary and metamorphic rock?

Answers

Metamorphic are formed through change underground sedimentary are formed through sediment
Sedimentary rock is formed from sediments that have gone through weathering, erosion, Depposition, compaction and cementation. Metamorphic rock is a igneous, sedimentary or metamorphic that has been changed through heat and pressure

what are things that are not cohesive

Answers

Answer:

not cohesive is called non cohesive that means soil is any free-running type of soil, such as gravel or sand, whose strength depends on friction between soil particles. however cohesive soil hardens to a nearly cement matrix when dry. It does not allow water movement.

hope this helped!

Match the following.
binary fission
colony
multiple fission
asexual reproduction in which a single cell divides into two
1. with no exchange of genetic material, reproduction method
of bacteria
asexual reproduction involving the growth of a new individual
from part of an older organism, uneven distribution of
2.
cytoplasm that results in one cell receiving most of the cell
contents
a group of organisms attached to one another after
3.
undergoing asexual reproduction from a common parent
the part of the cell division that causes the separation of the
4.
cytoplasm
a phenomenon in which organisms break into two or more
5.
parts and then each part grows into a new individual
the process involving the division of the nucleus of a body
6.
cell
asexual reproduction in which a single cell undergoes many
7 mitotic divisions in the nucleus and a number of daughter
cells are produced all at once
budding
cytokinesis
mitosis
fragmentation

Answers

Answer:      could you kindly mark me brainlest??

binary fission asexual reproduction in which a single cell divides into two with no exchange of genetic material; reproduction method of bacteria

budding A kind of asexual reproduction involving the growth of a new individual from part of an older organism. It can also refer to uneven distribution of cells that results in one cell receiving most of cell contents. In grafting, budding involves reducing the scion to a singular bud.

central disk =  The central portion of a starfish. The arms of a starfish radiate from the central disk.

colony = A group of organisms attached to one another after undergoing asexual  reproduction from a common parent.

conidia = A special kind of asexual spore found in many kinds of fungi.

multiple fission = A kind of asexual reproduction in which a single cell undergoes many mitotic divisions in the nucleus and a number of daughter cells are produced all at once.

propagation = The act of propagating or establishing and growing new plants.

protist = A one- or few-celled organism with chromosomes. Many have characteristics of both animals and plants.

regeneration = A phenomenon in which organisms break into two or more parts and then each part grows into a new individual.

spore = A small, resistant cell that can grow into a new organism. They may be produced either by meiosis or mitosis.

unicellular = One-celled.

Why do waves that travel through basalt have a higher velocity than a wave traveling through sand?

Answers

Answer:

Read Explanation

Explanation:

Even though the technology does not exist to travel into all of Earth’s layers, scientists can still learn a great deal about Earth’s structure through seismic waves. Seismic waves are vibrations in the earth that transmit energy and occur during seismic activity such as earthquakes, volcanic eruptions, and even man-made explosions. There are two types of seismic waves, primary waves and secondary waves. Primary waves, also known as P waves or pressure waves, are longitudinal compression waves similar to the motion of a slinky (SF Fig. 7.1 A). Secondary waves, or S waves, are slower than P waves. The motion of secondary waves is perpendicular to the direction of the wave travel, similar to the motion of vigorously shaking a rope

What else are extreme sports sometimes called?
O A. Action sports
O B. Adventure sports
O C. Adrenaline sports
D. Both A and B

Answers

A and b are correct
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