Why have the tortoises evolved on the Galapagos Islands?

Answers

Answer 1

Answer:

The splitting of context es and better envirnment for them more adaptfull  

Explanation:


Related Questions

What is Grow food??????? and wat is the answer :)

Answers

Grow food can consist of chicken,fish,meat,eggs,milk,cheese,yogurt, basically things that are full of vitamins and minerals to keep your skin hair and eyes ✨GLOWING✨‼️ have a God blessed day✝️

What is turgor pressure and its usefulness to plants in a hypotonic environment?​

Answers

Answer: Plants thrive in hypotonic environments. Their cells have rigid cell walls that prevents bursting, or lysis. The pressure of the cytoplasm against the cell wall keeps the plant from wilting and losing its shape. This pressure is called turgor pressure or osmotic pressure.

Explanation: On the other hand, cells without cell walls will swell and, if the environment is sufficiently hypotonic, burst (lyse) and die (referred to as cytolysis).

Some protists (such as Paramecium) counteract this with the use of contractile vacuoles that pump water rapidly out of the cell. Other organisms actually eject solutes from the cell in order to lower the concentration gradient of the solute in the cell and hopefully create an isotonic environment. Protists are a very small organism that only live in hypotonic environments.

Does natural selection occur when which of the following conditions are met?



A.Variations between individual organisms lead to differential survival chances.

B.The conditions in an ecosystem support a wide range of living organisms

C. Individual organisms depend on each other to obtain available resources.

D. Habitat and nutrient resources in an area are plentiful over a long period of time.

Answers

Answer:

THANKS FOR THE POINTS

Explanation:

Select the correct answer. Stephan's mother cuts a twig from a rose bush and plants it in the soil. After a few days, Stephan observes a new plant growing. Which characteristic does the growth of the new plant depict? OA asexual reproduction OB meiosis OC photosynthesis D. sexual reproduction​

Answers

Answer:

A. asexual reproduction

The video relates the parts of the cell to a city. How does the video describe the nucleus?
A. Toll booth - collects ATP
B. Warehouse - stores cell products
C. the mayor - directs organelles and stores DNA
D. highway system - helps produce protiens

Answers

The answer for this one would be A because

Answer:

B

Explanation:

because cells are stored within it

Elizabeth encountered a huge spider dangling from a tree on her way to check the mail. She nearly walked straight into it, and this near miss with the scary spider caused her body to go into fight or flight mode. Which area of the brain would start releasing adrenaline to direct other parts of the body to respond to this threat?.

Answers

The part of the brain that sends out the signal to the adrenal cortex to release the hormone is the hypothalamus of the brain.

What is Adrenalin?

The adrenaline is a hormone that is secreted by the adrenal cortex and is known to be functional in a time when the body is in distress. It is sometimes called the fight and the flight hormone because of the role that it plays in the times when the body is faced with danger.

Now, the part of the brain that sends out the signal to the adrenal cortex to release the hormone is the hypothalamus of the brain. Another name for the hormone is epinephrine.

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PLEASE HELP ILL GIVE BRAINLEST (PROBABLY MORE THEN ONE ANSWER)

Answers

Answer:

carbohydrate and lipid

The results of photosynthesis as glucose and oxygen

Photosynthesis

Products

Chloroplasts

Reactants

Glucose

Answers

Answer:

Photosynthesis.................

PLEASE HELP
An urban ecosystem is a designed ecosystem. Which of the following is (are) another example(s) of a designed ecosystem?
a. natural pond
b. a farm that has not been maintained for 10 years
c. fish aquarium
d. all of the above

16. Which of the following is an advantage of a synthetic fertilizer?
a. Amounts of nutrients can be precisely measured
b. Nutrients are lost from the soil through leaching
c. Benefits natural nutrient cycling
d. Less danger of overfertilizing

Answers

It’s d because the question said that the urban so its all the above

What role do smooth muscle cells perform in a human body?

Answers

They help with organ contraction. Hope this helped :)

What are the reactants of photosynthesis?
carbon dioide and hydrogen;
hydrogen oxygen and water
;light energy, water and carbon dioxide; oxygen and glucose

Answers

Answer:

The reactants for photosynthesis are light energy, water, carbon dioxide and chlorophyll, while the products are glucose (sugar), oxygen and water.

Explanation:

It takes six atoms of carbon (C), six atoms of oxygen (O) and twelve atoms of hydrogen (H) to make one molecule of glucose (C6H12O6)

Answer:

What are the reactants of photosynthesis are light, energy, water, and carbon dioxide,

Explanation:

A dam created with waste rock from surface mining is called a(n) __________.
A)
interglacial period
B)
valley fill
C)
placer deposit
D)
sanitary landfill
E)
ore deposit

Answers

I got D
Hoped this helped

Answer:

i believe it's C

Explanation:

e. coli are grown on a medium containing lactose. once glucose is added to the medium, the bacteria stop fermenting lactose

Answers

The lac operon is an operon required for the transport and metabolism of lactose in E.coli. When lactose is introduced to the increased medium, the lac genes are expressed due to the fact allolactose binds to the Lac repressor protein and maintains it from binding to the lac operator. Allolactose is an isomer of lactose. Small quantities of allolactose are shaped when lactose enters into E. coli. allolactose binds to the repressor protein and reasons the conformational change. As a result of this, the repressor can no longer bind to the operator area and falls off. RNA polymerase can then bind to the promoter and transcribe the lac genes. After some time, when the level of lactose decreases as it is metabolized using enzymes, it causes the synthesis of the repressor from the regulator gene. This repressor binds to the operator gene and prevents RNA polymerase from transcribing the operon and the transcription is stopped. This type of law is acknowledged as negative regulation.

Allolactose is a disaccharide comparable to lactose. It consists of the monosaccharides D-galactose and D-glucose linked thru a β1-6 glycosidic linkage alternatively of the β1-4 linkage of lactose. It may additionally occur from the occasional transglycosylation of lactose through β-galactosidase.

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A scientist analyzed a segment of DNA from a human chromosome and found that the percentage of cytosine molecular bases (C) was 32%. What percentage of adenine would be found in this DNA segment?

Answers

Answer:

16%

Explanation:

Glycogen is a polysaccharide stored in animal cells. When glycogen is broken down, glucose is produced. Some people's cells are not able to break down glucose after it has been produced from the breakdown of glycogen.

Which of the following would most likely be observed in a person as a direct result of the inability to break down glucose?

Question 14 options:

A rapid heartbeat and fast metabolism


A swelling of the joints


An inability to digest proteins


A low energy level and muscle weakness

Answers

Answer:

the last one would be the correct answer, A low energy level and muscle weakness.

Actinobacteria sp. are fermenting organisms, which do not require oxygen to survive. These organisms break down organic material and convert it to inorganic material. Which part of the carbon cycle does this describe?
photosynthesis
respiration
decomposition
assimilation

Answers

Answer:

decomposition

Explanation:

This describes the decomposition part of the carbon cycle. Therefore, the correct option is C.

What is Carbon cycle?

The movement of carbon between the atmosphere, land, oceans and living things is known as the carbon cycle. Many processes exchange carbon, including photosynthesis, respiration, combustion, breakdown, and sedimentation. These activities help maintain the carbon balance that is essential for life on Earth in both the biosphere and the planet's atmosphere.

Another important greenhouse gas is carbon, and the carbon cycle is important in controlling Earth's climate. The natural carbon cycle has been disrupted by human activities, including fossil fuel burning, deforestation, and land-use change, which have also increased atmospheric carbon dioxide concentrations and contributed to climate change.

Therefore, the correct option is C.

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PLEASE HELP!!!! Which of the following were responsible for changing the oxygen content in
Earth's atmosphere from no oxygen to 21% oxygen?
A. Prokaryotes
B. Eukaryotes
C. Ribozymes
D. Protobionts

Answers

Im not 100% sure but the best answer I can give is Prokaryotes because they came to be around the time oxygen did as well.

Answer:

prokaryotes

Explanation:

i took the quiz

How is glucose transported to different cells? And how do you know?

Answers

Answer:

Whether a cell uses facilitated diffusion or active transport depends on the specific needs of the cell. For example, the sugar glucose is transported by active transport from the gut into intestinal epithelial cells, but by facilitated diffusion across the membrane of red blood cells.

Explanation:

Answer:

Whether a cell uses facilitated diffusion or active transport depends on the specific needs of the cell. For example, the sugar glucose is transported by active transport from the gut into intestinal epithelial cells, but by facilitated diffusion across the membrane of red blood cells.

Explanation:

Which process is driven by the energy from earth’s interior?

Answers

Answer:

solar energy

Explanation:

Solar energy mainly drives the processes that happen at the earth's surface, like the water cycle, wind, weathering, erosion, and growth. Energy from inside the earth is responsible for internal processes like volcanism, metamorphism, and plate tectonics.

NEED HELP ASAP
Is the cell in question 24 an animal or a plant cell? Provide 2 pieces of evidence to support your answer.

Answers

I believe it is an animal cell. The big red circle looks to be a blood cell/

What is the similarity between mid-ocean ridges and accretion?

Both occur at convergent boundaries.
Both occur at divergent plate boundaries.
They occur when plates slide past each other.
They occur when one plate is pushed below another.

Answers

Mid ocean ridges and accretion they occur when one plate is pushed

Answer: Both occur in divergent plate bounderies. B

Explanation:

Its was in my textbook, forgive me if I'm wrong, I'm also doing the FLVS test

Whether or not a person detects a stimulus depends only upon that person’s absolute threshold. True or false?.

Answers

This is false

Signal detection theory states that detecting a stimulus depends upon sensitivity to the stimulus in the presence of noise, as well as response criteria.

a) microbial biofilm plays a major role in the initiation and progression of both dental caries and periodontal infections. b) periodontal diseases and dental caries are nontransmissible diseases.

Answers

It is true that microbial biofilm plays a major role in the initiation and progression of both dental caries and periodontal infections.It is false that periodontal diseases and dental caries are non-transmissible diseases.

Microbial biofilm are where the microbe cells stick closely to each other as well as to the surface. They are used in various purposes like: plant protection, bioremediation, wastewater treatment, corrosion inhibition, etc. The biofilm also acts as a hub for the micro-organisms to grow and therefore cause diseases.

Periodontal diseases are the inflammation of the gums. The symptoms on the onset of the disease involve red, swollen and bleeding gums.

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One pyruvate will produce ______.
A) 1 carbon dioxide waste molecule
B) 1 ATP molecule
C) 1 NADH molecule that moves to the electron transport chain
D) 4 NADH waste molecules

Answers

I don’t understand sorry I actually have to anser 2 questions so yeah sorry

Answer:

The correct answer Is C.

1 NADH molecule that moves to the electron transport chain

Explanation:

I got it right

Select all that apply
Cows consume grasses and other plants to survive. In this relationship, cows are which of the following?
Heterotroph
Herbivore
Carnivore
Autotroph

Answers

herbivore and heterotroph

When studying cells structure using a microscope the smallest unit of measurement
commonly used to describe findings is the nanometre. Explain why.

Answers

Since a nano-metre is the most accurate unit for working with the extremely small cell structure (the majority of cell organelles are between 1 and 1000 nano meters)

Why is it important to measure cell size?

The fundamental functions of a cell's physiology, such as flux across membranes, depend on the size of the cell as a whole, which is one reason why cell size matters. Changes in the volume or surface area of a cell will therefore have a significant impact on the metabolic flux, biosynthetic capacity, and nutrient exchange.

Which tool is used to see the smallest units in cells?

Under a light microscope, smaller cells are clearly visible. Even internal cell structures like the nucleus, mitochondria, and chloroplasts can be seen. An image is magnified by a system of lenses in light microscopes. Micrometers are used to measure the cell's size. Human red blood cells have a diameter of 7.0 micrometers, while the smallest cell known as Mycoplasma is 0.3 micrometers. Animal and plant cells typically range in size from 10 to 30 microns.

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plz help asap!!! i’ll give brainlest!

Answers

the answer is carbohydrate

Answer:

Carbs

Explanation:

Lipids take to long to break down so that leaves carbs.

6. Use the diagram below to answer the following question.

Which labeled viral structure in the diagram above stores viral DNA similarly to the way the nucleus
stores cellular DNA?
F. 3
G. 1
H. 4
J. 2

Answers

Answer:

4?

Explanation:

The labeled viral structure in the diagram above stores viral DNA in the head (number 4) similarly to the way the nucleus stores cellular DNA.

A virus is a term to refer to a microscopic particle characterized by infectious genetic information (DNA) that reproduces once it infects the host's cells.

The image shows the structure of a complex virus, it has the following parts:

Head (number 4)Collar (number 3)Tail (number 2)Long-Tail fiber (number 1)

In the head, it stores the genetic information that is later transmitted to the cells of the host it infects. Likewise, it uses its cells to multiply. So the correct answer is 4.

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What Type of reaction is C12H220
O11->12C + 11h20
a)synthesis
b)decomposition
c)oxidation
d)combustion


please respond asap​

Answers

It’s a decomposition reaction

Match each labeled portion of the diagram to the correct term.

Answers

Answer:

1. Cellular Respiration

2. Sunlight

3. Carbon Dioxide ***

4. Water ***

5. Chloroplast

6. Mitochondria

7. Glucose ***

8. Oxygen ***

9.  Photosynthesis

10. ATP

Explanation:

*** = 3 and 4 order does not matter as they are products of cellular respiration. You can't be wrong on that if you were to switch answers between carbon dioxide and water–– they're still products.

*** = 7 and 8 order does not matter as they are products of photosynthesis. You can't be wrong on that if you were to switch answers between glucose and oxygen–– they're still products.

The rest should be in order as given.

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