Scientific classification systems have changed throughout time. In the past, the classification of organisms was based mostly on shared physical characteristics. What forms the basis of the modern classification system

Answers

Answer 1

Answer:

Modern scientists base their classifications mainly on molecular similarities. They group together organisms that have similar proteins and DNA. Molecular similarities show that organisms are related


Related Questions

five differences between mankind and plants

Answers

Answer:

Let me count a few of the ways…

Plants do not take life of any kind to sustain their own lives.Plants harvest atmospheric carbon dioxide (a waste product), water and sunlight (both ubiquitous and freely available) to produce within themselves the food which nourishes them.Plants are born and die in the same place.Plants have yet to start a war, perpetrate a genocide, or kill members of their own species over disagreements about mere ideas.When plants die, they do not entertain silly notions of a Better Place, somewhere beyond the stars.

Which component of food is normally absorbed in the large intestine as well as the small intestine? A) Water B) Carbohydrates C) Fats D) Proteins

Answers

Answer:

A water an organic compound

Describe the traits that would have existed in early eukaryotes.

Answers

Answer:

Early Eukaryotes were single-celled organisms that were present more than 1.6 to 2.1 billion years ago.

Explanation:

-Eukaryotes could be found in a variety of shapes and had a nucleus, a flexible membrane, and a cytoskeleton.

-Early eukaryotes used oxygen in metabolism.

Answer:  Many traits found in eukaryotic cells today would have been found in early eukaryotic cells. First, early eukaryotic cells would have had membrane-bound organelles. Also, DNA probably contained introns since this is seen in many eukaryotic cells today. Chromosomes were probably linear in shape. Lastly, these cells would have had mitochondria and membrane-bound organelles. Since these are seen in all eukaryotic cells today, we can infer that they would have been around in early eukaryotes as well.

Explanation:

Just answered it on EDG

Which two characteristics describes the most stable ecosystem on Earth?
a. They are near the

b they are near the equator.

c. They have high biodiversity

d they have to speed. Plants

Answers

Answer:

c. They have high biodiversity

Explanation:

Answer:

C and B

Explanation:

I need help with this ​

Answers

Answer:

Eukaryote.

Explanation:

Eukaryotes can be unicellular or multicellular.

Hope this helps, have a great day.

Which books are the hardest to force yourself to read through?

Answers

Answer:

litterally anything

Explanation:

Evan's playroom is 4 m by 3 m. The area of the room is:
o 7 m
07 m2
O 12 m
O 12 m2

Answers

Answer:

12 m^2

Explanation:

Area = length * width

A = 4m * 3m

A = 12 m^2

(Area is measured in square units)

Answer:

D. 12 m2

Explanation:

To do this problem, you need to find the area. To find the area of a rectangle, you multiply length x width. In this scenario:

4 x 3 = 12.

So, we know that the first two options are incorrect. Next, we have to look at the unit of measurement that we are needed to imply. In this case, we are using meters, which we need to square. Therefore, the answer is 12 m2.

Hope this helped!

I couldn’t find it on here so here’s the answer-The Soviet Union launched the first human spaceflight on April 12, 1961, carrying cosmonaut _____.
It’s Yuri Gagarin

Answers

Answer:

that's great man

Explanation:

thanks alot for this, it really helps out

Answer:

Thank you!

Explanation:

It is Yuri Gagarin, I just took the test too and got it right.

which of the following best describes how the population evolved ?

Answers

Answer:

The population has evolved because there was a change in allele frequencies.

Explanation:

The dust and gas that escapes from a comet creates a/an
OA. Meteor
OB. Asteroid
OC. Second comet
OD. Coma

Answers

Answer:

Coma

Explanation:

Such a cloud, termed a coma, is a distinguishing feature of comets and consists of gases and entrained dust escaping from the cometary nucleus when sunlight causes its ices to sublimate.

In the picture below, a large area of forest is being cleared. The land will be used to build houses.
The construction will most likely
A.
destroy the animals' habitats.
B.
pollute the animals' water supply.
C.
take away air that the animals breathe.
D.
give the animals a new source of food.

Answers

Answer:

The answer would be A.

Answer:

A.

Explanation:

The land is living by family

While asleep, your heart keeps beating, you breathe in and out, your food is being digested, and you are making waste. What part of your brain is responsible for controlling all of this?

Answers

Answer:

I believe that it is the brain stem

Explanation:

The brain stem, at the bottom of the brain, connects the cerebrum with the spinal cord. It includes the midbrain, the pons, and the medulla. It controls fundamental body functions such as breathing, eye movements, blood pressure, heartbeat, and swallowing.

Why were the prokaryotes split into
two kingdoms?
A. Their size was much different from
each other
B. They were discovered to be very
different from each other
C. It makes it easier to sort out all of
the organisms
D. There were too many bacteria for
one kingdom

Answers

Prokaryotes were split into two kingdoms because they were discovered to be very different from each other.

The correct option is B.

What are prokaryptes?

Any organism that lacks internal membranes, which prevents the formation of a distinct nucleus and other organelles, is referred to as a prokaryote (also written procaryote). The most well-known prokaryotic species are bacteria. Prokaryotes are different from eukaryotes because they don't have internal walls.

Separate prokaryotic kingdoms with purportedly distinct evolutionary histories are called bacteria or eubacteria and archaebacteria or archaea.

Learn more about prokaryotes at: https://brainly.com/question/1288013

#SPJ1

Help me pls on this question which is the right answer

Answers

Answer:

A.

Explanation:

D. is most likely not the answer because it doesn't mention anything involving a increase in hawks nor does it mention A. but A. is more commonly known to cause decreases in certain animal species if affected in there homeland.

~ LadyBrain

Which statement correctly describes the difference between cellular respiration and photosynthesis?
A.
Photosynthesis involves chemiosmosis, and cellular respiration doesn’t involve chemiosmosis.
B.
Photosynthesis doesn’t produce any ATP, and cellular respiration produces ATP.
C.
Photosynthesis occurs during the day, and cellular respiration occurs at night.
D.
Photosynthesis creates energy that the plant stores, and cellular respiration utilizes the energy.
E.
Photosynthesis is an anabolic reaction, and cellular respiration is a catabolic reaction.

Answers

The answer is b, cellular respiration produces ATP energy

Answer:

D.

Photosynthesis creates energy that the plant stores, and cellular respiration utilizes the energy.

Explanation:

PLATO

;)

HELP ASAP PLEASE!!!!!!!!!!!!!

Answers

A law is described as a statement that describes what happens under certain conditions in nature

Answer:

A) theory

Explanation:

A scientific theory is an explanation of an aspect of the natural world and universe that can be repeatedly tested and verified in accordance with the scientific method, using accepted protocols of observation, measurement, and evaluation of results.

if a volcano erupts and destroys an ecosystem how would life begin to form again?

Answers

Answer:the answer is simple when the lava clears up the is rocks left and the rocks contain lichen or moss the lichen and moss speed up the process by a little a are like a little decomposer and when it decomposes dirt start to come together  and grass and trees start to form in wich bring wildlife attracted to that place

Explanation:i dunno

if you fill out ALL the punnett squares CORRECTLY, then i will give u brainliest, but please help me guys i need this done!!!!!!!!!!!!

Answers

Answer:

1)  Gg/Gg

   /Gg/Gg

3) Dd/dd

  /Dd/dd

Explanation:

6) What must be taken from
14 1 to leave 8 2?
12
3
A.
6 5
12
C. 6
B. 5 ]
12
D. 55
1
If 1 Canadian dollar is
equivalent to J$69.00,
which would give the
equivalent of J$9 500.00?
9 500 x 69​

Answers

Answer:

Did you know: There are over 1,400 species of bats worldwide. Bats can be found on nearly every part of the planet except in extreme deserts and polar regions. The difference in size and shape are equally impressive. Bats range in size from the Kitti’s hog-nosed bat (also called the Bumblebee Bat) that weighs less than a penny -- making it the world’s smallest mammal -- to the flying foxes, which can have a wingspan of up to 6 feet. The U.S. and Canada are home to about 45 species of bats and additional species are found in the U.S. territories in the Pacific and Caribbean.

Explanation:

The two distinct layers of the integument consist of a layer of stratified squamous epithelium called the ______ and a deeper layer of areolar and dense irregular connective tissue called the ______.

Answers

Answer:

Epidermis and Dermis

Explanation:

The two distinct layers of the integument consist of a layer of stratified squamous epithelium called the Epidermis and a deeper layer of areolar and dense irregular connective tissue called the Dermis.

The Epidermis is the outermost layer of the skin while the Dermis can be found under the epidermis and is also known as the thickest layer thereby providing strength to the skin

which of the following are represented by upper and lower case letters

A. proteins

B. chromosomes

C. genotypes

D. phenotypes

Answers

The answer B. Chromosomes

Answer:  B. Chromosomes

Explanation:

What are the four characteristics that that determine to which kingdom an organism belongs?

Answers

Answer:

appearance, reproduction, mobility, and functionality

Explanation:

An chicken with black feathers is crossed with a chicken with all white feathers, the chickens are born with both black and white feathers. What type of dominance is shown?

A. Complete dominance
B. Incomplete dominance
C. Co-dominance
D. Mixed dominance
E. None of the above

Answers

Answer:

C. Co-dominance

Explanation:

because both phenotypes are expressed fully

Please help me
I'll give the brainliest!
Please don't answer from links
URGENT !!!!!
Please answer correctly​

Answers

Answer:

A) Identify the Dependent and Independent variables

The Independent variable is Temperature.

The Dependent variable is the seeds. The dependent variable is the variable that is being studied.

B) Calculate the average height of the seedlings in tube C.

To find the average, you must add up all of the heights and divide by the number of seedlings.

3.4 + 4.5 + 2.5 + 3.7 + 2.8 + 4.4 + 4.3 + 2.9 + 2.1 + 3.7 = 34.3

34.3 ÷ 10 = 3.43 cm

C) Conclusion

The seedlings in tube C grew much taller than the seedlings in tubes A and B.  

This means that seedlings germinate better in warmer temperatures.

D) Why does Temperature affect Germination?

The temperature of the climate affects the dampness of the cotton wool. Moisture is key to germinating seeds. Seeds like a moist but not soggy environment caused by the correct temperature.

E) How could the experiment be better controlled?

The light levels in this experiment varied, but were not accounted for in the calculations.

It would have been better to keep them all under the same amount of light in order to keep the experiment accurate.

when a vegetable gets put in salt water and collapses why does this happen

Answers

Osmosis is defined as the movement of solvent (like water) from a region where the concentration of solute(like salt) is lower to a region where the concentration of solute is higher through a semipermeable membrane.

Salt water is a hypertonic solution as the concentration of salt ( solute) is higher. Therefore, in this case water from vegetable will move outside causing the cells to become fragile.

cuáles son las características adaptativas que favorecen la sobrevivencia de los pingüinos?

Answers

Answer:

Los pingüinos tienen una cola corta y rígida. Pueden inclinarse hacia atrás y mantener el equilibrio sobre los talones y la cola. Esto reduce la pérdida de calor de los pies al suelo. El color del cuerpo de un pingüino ayuda a camuflarlo cuando nada.

Explanation:

Penguins have a short stiff tail. They can lean backwards and balance on their heels and their tail. This reduces heat loss from their feet to the ground. The color of a penguin's body helps to camouflage it when it is swimming.

I. Contamination of groundwater
II. Increased seismic activity
III. Decreased methane emissions into the environment

Hydraulic fracking is using pressurized water to open fissures and fractures in the deep rock formations in
order to release natural gas and petroleum deposits. Which of these is a negative ecological consequence
of hydraulic fracturing (fracking)?
A) I only
III only
B) Il only
D) I and Il only

Answers

Answer: l and ll only

Explanation: i took the test

O
soil erosion.
O
worm populations in the soil.
O
numbers of minerals in the soil.
O
water retention.

Answers

Answer:

soil erosion

Explanation:

when there are no roots in place and land is stripped there is nothing left to hold the soil in

A dog is found to have a tapeworm present in their stomach. What type of interaction is present between these two organisms?

Answers

Answer:

Palatilism

Explanation:

Due to one organism benefiting (tapeworm ) while the other organism is harmed (dog)

parasitism



shshshhahahja

In a population of worms, the coloration of all individuals has been the same brown color for many generations. Last year, a worm was born with white coloration. The worm then produced several white offspring. The resulting change in the population was caused by *

Answers

The change must have been caused by the worm mating with several white worms

Answer:

fufjfbtjfifigugxfzdyñdydydy

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