Describe Lamarck’s idea about how organisms evolved. Use the giraffe’s neck as an example.

Answers

Answer 1

Answer

Lamarckism, a theory of evolution based on the principle that physical changes in organisms during their lifetime—such as greater development of an organ or a part through increased use—could be transmitted to their offspring.

Lamarck believed that the stretching elongated the giraffe's neck, which became a useful characteristic and was passed onto future generations. This resulted in the length of the giraffe's neck increasing over time. It is now commonly accepted that Lamarck's ideas were wrong.


Related Questions

"This leaf is 4 inches long."
What kind of observation is this?
A Quantitative
B. Qualitative
C Hypothetical
D. Inferential

Answers

The answer is A. Quantitative because Quantitative is observing amount, or quantity. Qualitative would be observing the quality, like color or shape. Hypothetical is making a hypothesis on the size, and finally inferential is would be saying you measured the leaf, I believe. A quick way to solve this would be to see if it involves numbers, and if so it’s a quantitative observation. If it involves color or shape or anything you observe with sight alone, it’s a qualitative observation. I hope this helps and sorry for the long answer, just trying to explain why A is correct.

Coastal plains are also referred to as ____. a. marshes c. interior plains b. lowlands d. plateaus

Answers

The correct answer is B) lowlands.

Coastal plains are also referred to as lowlands.

This region of the United States is a flat land next to the sea. Oftentimes this region is divided from other parts by mountain chains. We are talking about the coastal plains along the Atlantic Ocean. This low relief region of the East Coast extends for 2,200 miles from the state of New York to the state of Florida.

Answer:

b. lowlands

Explanation:

Raising more sustainable fish would require choosing fish species such as____?
A. Tilapia that eat algae and plants
B. Tuna that eat other fish
C. Catfish that eat fishmeal
D. Carp that eat fertilizer
E. Trout that can be easily caught

Answers

Answer:

A tilapia that eat algae and plants

A. A tilapia that eat algae and plants

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 did the results of the experiment show​

Answers

What experimemt is it?

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?

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Answer:

Explanation:

they would die or suffer

Which type of tissue carries messages?
A. Nervous tissue
B. Connective tissue
C. Muscle tissue
D. Epithelial tissue
SUBN

Answers

Answer:

Nervous tissue

Nervous tissue is responsible for carrying messages throughout the body. It is made up of specialized cells called neurons, which are able to transmit electrical signals. These signals allow the body to respond to stimuli and coordinate its movements. Hence option A is correct.

Connective tissue provides support and structure to the body. It is made up of cells that are embedded in a matrix of fibers. The fibers can be made of collagen, elastin, or other proteins. Connective tissue can be found in many different parts of the body, including the bones, muscles, and skin.

Muscle tissue is responsible for movement. It is made up of cells that can contract and relax. There are three types of muscle tissue: skeletal muscle, smooth muscle, and cardiac muscle.

Skeletal muscle is attached to bones and is responsible for voluntary movement. Smooth muscle is found in the walls of internal organs and is responsible for involuntary movement. Cardiac muscle is found in the heart and is responsible for pumping blood.

Epithelial tissue covers the body and lines internal organs. It is made up of cells that are tightly packed together. Epithelial tissue protects the body from infection and helps to regulate body temperature.

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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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define the general difference between an autotroph and a heterotroph

Answers

Answer:

Explanation:

If we break down the word autotroph, auto means “self” and troph means "feeding" or nourishment. However, when we break the word heterotroph, we get hetero- meaning other, and troph meaning feeders.

This is the critical difference between these two groups. Autotrophs synthesize or make their own food whereas, heterotrophs cannot make their own food thus have to rely on others by eating or absorbing others. For example, plants are autotrophs because they can make their own food using photosynthesis, whereas, humans are heterotrophs because we have to eat others to survive.

Answer:

autotrophs  are organisms that can produce their own food from the substances around them using light or chemical energy

heterotrophs cannot synthesize their own food and rely on other organisms plants and animals for nutrition

Explanation:

What is the most common molecule in living things?
A. H2
B. CO
C. CO2
D. H20

Answers

Answer:

H20

Explanation:

because all living things need water(H20) in other to survive

Which of these is a carbohydrate? A. C6H12O6 B. C6H6O12 C. C6H13O2N D. C3H7O2NS

Answers

It is carbohydrate is A C6H6O12

Answer:

A. C6H12O6

Explanation:

edge 2021

What happens when muscles in the frogs body wall contract?

Answers

With the nares open, the frog contracts muscles in the floor of its mouth to drop the floor of the mouth down. This enlarges the buccal cavity. Since the area is larger, the pressure inside the mouth drops. Air rushes through the nares into the buccal cavity equalizing the pressure inside and outside the frog.

What is the purpose of a control sample that is known to be from a given
species in an eDNA surveillance for that species?
A. To identify samples containing the target DNA
B. To produce multiple banding patterns in a gel
C. To amplify the DNA in small samples
D. To identify every species found​

Answers

Answer:

B. To produce multiple banding patterns in a gel

Explanation:

3. (4pts) A constraint is a limitation or condition that must be satisfied by a design. For example, you may onl
be able to use certain materials, or you might want the device to operate at a certain speed.
What was a constraint (a limitation or a condition) in this version?

Answers

Answer:

As seen in the question above, "constraint" is a word that indicates a limitation or condition. In this case, we can say that the "restriction" is an imposition to a limit under a given situation, and it can also mean an imposition of the free execution of an activity, skill and even limitation and a conditioning factor to a certain freedom.

What helps mitochondria make proteins by itself? 1. Presence of membrane 2. Presence of ATP 3. Presence of Ribosomes 4. All of the above

Answers

Answer:

presence of ribosomes because they are the main sites of production of proteins

Answer:

3. Presence of ribosomes

Explanation:

Mitochondria has its own ribosomes which help in the synthesis of protiens

fruit is absent in ?

a.Mango
b.rose
c. pine
d.sunflower ​

Answers

Answer: C: Pine

Explanation: Pine belong to the gymnosperms ( Naked seed plants) group, a group of plants with flower that has no ovary hence no fruit. The seeds are borne naked on scaly structures or leaves surface. Other examples in this group are Conifers, Cycads, Ginkgo e.t.c

Which statement about the nervous system is true?

Answers

I’m pretty sure it’s A, it works like Electrical Wires
The answer is C. It stores information. This is because The brain is part of your nervous system and of course your brain stores information that you process throughout you body in different ways. (Brainiest me please)

How is a genetic switch different than a gene? How are they the same

Answers

Genes code for characteristics and processes, where a genetic switch is the process of genes being turned off and on during development, telling that cell to produce a specific set of proteins; for example, a if there was a stomach cell placed within your arm, that stomach cell would be switched off as the proteins that it produces are not needed in the arm; where a gene is the sequence that codes for the characteristics of that cell.

1. Did your buoy move as you expected? Explain why or why not.

Answers

Wait did the what move as expected
According to what I know a buoy is a floating object that has many uses or purposes.

Maybe you have a different meaning to help answer the question.

Which type of organism most likely evolves first

Answers

Answer:

Prokaryotes.

Explanation:

They are single celled organism adaptive of living in earth older environment.

sarah travel to the beach that was 125 miles away for 2.2 hours . what speed was she driving ?

Answers

Answer:

56.8mph

Explanation:

Answer:

She was going about 56.82 mph

Explanation:

Divide 125 by 2.2 to know her mileage per hour

125÷2.2≈56.82

Damage to which of the following structures is most likely to affect the oxygen production of a plant?

A. The electron transport chain
B. Photosystem II
C. The hydrogen ion pump
D. Photosystem 1

Answers

B is the answer I think

What acid precipitation and two examples of the negative effects of air pollution.

Answers

Any form of precipitation, including rain, snow, hail, fog, or dew, that is high in acid pollutants, especially sulfuric and nitric acid. Acid precipitation has a pH of less than 5.6 (the normal acidity of unpolluted atmospheric water) and is often less than pH 5.0.
Air pollution can kill trees and can cause chronic disease

Earth's crust and uppermost mantle form the

Answers

Answer:

The lithosphere

Explanation:

The upper mantle is in between the lower mantle and the earths crust Crust. In other words, the outer most solid shell of the earth. The earth's crust and uppermost mantle form the lithosphere.

Hope this helped!

Answer:

lithosphere

Explanation:

How did the elements begin to stratify?

Answers

I think the answer is diffusion velocity, sorry if I am wrong hope I at least helped a bit

In which situation would all of the larger elephants in a herd most likely stand shoulder-to-shoulder around a young calf? to protect the calf from predators to play a game with the calf to keep the calf shaded if it is sunny out to keep the calf dry if it is raining

Answers

to protect the calf from predators

Answer:

a

Explanation:

What method is used when you try several different solutions to see what
works?

Answers

Trial and Error

.............................
the answer should b trail and errors

match the phylum with the animal.

Answers

Answer:

1 - D

2 - A

3 - C

4 - B

Explanation:

Which is not a basic function of a cell? A. Breaking down molecules B. Making macromoleclues for an organism C. Maintaining a stable external environment D. Removing waste from the cell

Answers

Answer:

D. Removing waste from the cell

Explanation:

Hope it helped mark me brainliest

Answer:

maintaining a stable external environment.

Explanation: I just did it

Read the article and use the information to answer the question that follows. Changing Theories Explain Lamarck's ideas about how organisms changed over time.

Answers

Answer:

Lamarck thought that organisms came into being through spontaneous generation

He thought they changed from simple organisms to more complex organisms because they had an innate drive to become more complex and perfect

Lamarck thought that when organisms changed their behaviors in response to a changing environment, their bodies changed. When they used a part of their bodies more, it changed accordingly. When they used a part of their bodies less, it shrank

Explanation:

Cuz I took the L for y’all

Answer:Lamarck thought that organisms came into being through spontaneous generation

He thought they changed from simple organisms to more complex organisms because they had an innate drive to become more complex and perfect

Lamarck thought that when organisms changed their behaviors in response to a changing environment, their bodies changed. When they used a part of their bodies more, it changed accordingly. When they used a part of their bodies less, it shrank

Explanation:

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