.Origin of species was given by

Answers

Answer 1

Answer:

Charles Darwin

Explanation:

Answer 2
They were given by Charles Darwin

Related Questions

I need help which one is it so I can pass summer school

Answers

Answer:

the correct answer is will be option b

Explanation:

I hope this help you have a great day

An example of a density-independent factor that affects a population's growth is Select one: a. insects eating your tomato plants. b. your tomato plants competing for water. c. a fungus infecting your tomato plants. d. frost killing all of your tomato plants. e. All answers are correct.

Answers

Answer:

The correct answer is - D. frost killing all of your tomato plants.

Explanation:

Density independent factors are the factors that are limiting factor that are affects the size of population of the living beings without being affected by density of population. In such factors density of population does not play any role or affect the size of population.

In the given option other than frost all are density dependent factors affecting size of population.

what are the two characteristics of Pine due to which it is not placed under sub division angiosperms​

Answers

Answer:

The angiosperms, or flowering plants, are the largest and most species-rich phylum of plants, with more than 250,000 species estimated.

Defining Characteristics

The term "angiosperm" derives from two Greek words: angeion, meaning "vessel," and sperma, meaning "seed." The angiosperms are those plants whose seeds develop within a surrounding layer of plant tissue, called the carpel, with seeds attached around the margins. This arrangement is easily seen by slicing into a tomato, for example. Collectively, carpels together with the style and stigma are termed the ovary, and these plus associated structures develop into the mature

Explanation:

A poison placed on the tips of darts by natives of the Amazon rainforest paralyzes prey such as small mammals. Which of the prey's cells are most likely affected by the poison?
muscle cells
epithelial cells
red blood cells
white blood cells

Answers

Answer:

Muscle cells

Explanation:

If they are paralyzed it stops use of the muscles. like... just read it bro

The cells in the prey that are most likely influenced by the poison present in the darts exist the muscle cells.

What are muscle cells?

A muscle cell exists also known as a myocyte when directed to either a cardiac muscle cell or a smooth muscle cell as these exist both small cells. A skeletal muscle cell exists long and threadlike with many nuclei and is named a muscle fiber. Muscle cells originate from embryonic precursor cells named myoblasts.

The muscle cells exist as a specialized kind of cell (one of the four tissues) that can contract to exert action.

These cells (muscle cells) can be paralyzed by utilizing various inhibitors of movement such as poisons.

In conclusion, the cells in the prey that exist most likely affected by the poison present in the darts exist the muscle cells.

The cells in the prey that exist most likely influenced by the poison present in the darts exist the muscle cells.

To learn more about muscle cells refer to:

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An atom with 17 protons 17 neutrons and 17 electrons has a net charge of what

Answers

Answer:

0

Explanation:

Since we have the same amount of protons and electrons, our net charge is 0.

Hope this helped,

~cloud

Biological method involves all the following except

(a) data collection (b) observation (c) proportion (d) experiment​

Answers

Its c you are very welcome

how do you think the weight and the lift should not be of the same magnitude​

Answers

Answer:

There is because one is short and one is long

Which of the following is a start codon?
A.UAG

B.AUG

C.UAA

D.UGA

Answers

Answer:

AUG

Explanation:

you can use a codon chart to help or double check.

B) you can use a software to check

Động vật nào sau đây máu đu nuôi cơ thể không pha trộn giữa máu giàu o2 và máu giàu co2

Answers

Answer:  Tôi không thể giúp anh vì anh chưa bao giờ đặt tên cho bất kỳ con vật nào

What is the difference between sediments deposited in outwash and sediments deposited in moraines?

1. Sediments in the outwash are larger.
2. Sediments in the outwash are sorted
3. Sediments in the outwash are more angular
4. Sediments in the outwash are older.

Answers

Answer:

2. Sediments in the outwash are sorted

The difference between sediments deposited in outwash and sediments deposited in moraines is that-Sediments in the outwash are sorted. Therefore, the correct option is 2.

What is the sediment of outwash and moraines?

Outwash is the sediment that is carried away from a glacier by meltwater and deposited in streams and rivers. This sediment is typically well-sorted, which means that particles are relatively uniform in size, shape, and composition.

Moraines are piles of unsorted sediment that are left behind by a glacier as it retreats. This sediment is typically a mix of different particle sizes, shapes, and compositions.

The glacier's movement is not strong enough to sort the sediment of moraines, so it remains unsorted. Therefore, the correct option is 2.

Learn more about the sediment of outwash and moraines, here:

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Which level of organization is characterized by a group of cells that work together to perform a common function?
organ
tissue
organ system
organism

Answers

Answer:

B

Explanation:

Answer:B

Explanation:

Genesis that forms from high-grade region of heat and pressure example of steps in ____ cycle


1. Rock cycle

2. Carbon cycle

3. Tectonic cycle

4. Water cycle

Answers

Answer:

tectonic cycles

Explanation:

the house in question was

Explain how the changes in the villi of a person with coeliac disease may cause the person to lose weight and have low amounts of vitamins and minerals in their body

Answers

Answer:

The changes in the villi of a person with coeliac disease may cause the person to lose weight and have low amounts of vitamins and minerals in their body because Villi absorb vitamins, minerals and other nutrients from the food you eat.

what are the main layers of Earth's interior and the indirect evidence that helped us determine the layers?

Answers

Answer:

Explanation:

layers of earth

crust

mantle

outter mantel

inner mantle

core

outter core

inner core

Which of the following correctly describes the formula for speed?

Answers

Answer:

im sorry there are no options to the question

Answer:

Speed = Distance/ Time taken

Glycolysis and gluconeogenesis are opposing pathways in that they begin or end with the same metabolites and share common intermediates and/or enzymes. Yet, for energetic reasons, the two processes cannot be the exact reverse of each other. How is this possible

Answers

Answer:

Due to difference in their products.

Explanation:

Glycolysis and gluconeogenesis are not exact reverse to each other because in glycolysis, glucose is converted into pyruvate, adenosine triphosphate (ATP), NADH, protons i.e. hydrogen ions and water whereas in gluconeogenesis, pyruvate is converted into glucose and glycogen. So due to  the formation of different products of each process we can say that glycolysis is not exact reverse of gluconeogenesis.

What is the function of the Xylem in a leaf?

Answers

A leaf is xylem the of function the is what

Which of the following would be examples of abiotic factors in a mountain river ecosystem?
fish, algae, and sand

sand, water, and fish

sand, water, and minerals

water, fish, and algae

Answers

Sand , water , and minerals

You will create a molecular clock model for an arthropod gene. Follow these guidelines to make your model:

Your timeline will span from 90 million years ago to the present. The common ancestor in your model is an arthropod that lived 90 million years ago. The gene that you’ll track codes for a protein in the species’ venom.
The DNA sequence you’ll track contains 10 nitrogen bases. You can choose the order of the bases and where the mutations occur.
This gene mutates at a rate of approximately 0.76 base pairs every 17.1 million years. To build your model, calculate the estimated time period it takes for 1 base pair to mutate.
The first time period will only show the common ancestor. At the beginning of the second time period, three lineages will diverge from the common ancestor, each with a different mutation in their gene sequences.
The first and third descendant species will survive for the rest of the timeline. The second descendant species was extinct 50 million years ago.
Calculate how long it will take for one full base pair mutation to occur. Explain your reasoning by constructing a mathematical equation.

Answers

Answer:

The mutations occur at a rate of 0.56 base changes every 1 billion years. If this rate stays consistent, the mutation rate can be used to determine when different lineages of a particular species split

Answer:

It takes about 17.1 Million years for a base pair to mutate at a rate of 0.76 base pairs. To get the time it takes for one full mutation to occur, you must divide 17.1 to 0.76 and multiply it by 1. So, (17.1/0.76)×1=22.5. It would take about 22.5 million years for one full base pair mutation to occur. Having this being said, the first descendant with one base pair mutation would change after 22.5 million years from the common ancestor. For the second descendant, it would take 45 million years as 22.5 time 2 is 45. 5 million years later, the second descendant will become extinct while the first descendant survives. The third descendant will take about 22.5×3= 67.5 million years. Now, the first and third descendants will survive while the second descendant is extinct.

Please mark as brainliest :)

What is the Constant of “which bait works best for a fly trap?”

Answers

Answer:

Mix scraps of meat (the older, the better) with something sweet. Lots of people swear by using rotten fish or shrimp, which probably work best because they smell so much. Bait for Fruit Flies: Use fruit (the riper, the better), apple cider vinegar, fruit juice, syrup, wine, beer, or any combination

answer h and i urgently
no explanation needed ​

Answers

Answer:

h. I think option c growth of an organism in not true

C
I think its the best answers

6. What do fungi have in common with animals?

Answers

Answer:

Fungi are more like animals because they are heterotrophs, as opposed to autotrophs, like plants, that make their own food. Fungi have to obtain their food, nutrients and glucose, from outside sources. The cell walls in many species of fungi contain chitin.

Which of these organelles is NOT in animal cells?

Ribosome
Endoplasmic Reticulum
Cell Wall

Answers

Cell wall is not found in animal cells

A group is considered monophyletic if
A. all members of the group share a common ancestor that is included in the group.
B. all members share homoplastic traits.
C. the group does not contain the most recent common ancestor.
D. not all descendants of the common ancestor are included.
E. it is the most parsimonious grouping.

Answers

The answer would be e it is the most parsimonious grouping

which of the following is true for a eukaryote?

A. it is one of the first life forms to appear on earth.

B. it doesn't have a nucleus and organelles.

C. it must be a multicellular organism.

D it evolved from prokaryotes

Answers

Answer:

D it evolved from prokaryotes

Explanation:

let me know if you have any questions

oil-rich countries in the middle east cover about 4% of earth's total land area but posses about 48% of the world's known oil reserves. what is the main reason for high concentration of reserves in this part of the world?

Answers

The correct answer is A. Geological processes.

Explanation

Oil is a hydrocarbon of fossil origin by geological processes that transforms large amounts of organic matter deposited on anoxic bottoms of seas or lake areas of the geological past, which were later covered by heavy layers of sediment. This causes organic materials to be transformed into oil by the heat and pressure of the upper layers. However, this phenomenon does not occur in all parts of the earth because in some, as in the case of the Middle East, there were large amounts of organic matter that became an oil reserve. So the correct answer is A.

Que tipo de ecosistema tienen los pingüinos emperador y Adelia?

Answers

Answer:

Los pingüinos Adelia viven en el continente antártico y en muchas pequeñas islas costeras circundantes. Pasan el invierno en alta mar en los mares que rodean el hielo antártico.

Los pingüinos emperador viven exclusivamente en entornos antárticos gélidos. Prefieren reproducirse durante el invierno, cuando el hielo se congela y se estabiliza. Estos pingüinos suelen crear colonias de reproducción en áreas cercanas a icebergs y acantilados helados, que los protegen de los peores vientos fuertes.

Explanation:

te ayuda esto?

which best describes a bacterium

Answers

a unicellular prokaryote

Answer:

Bacteria

Bacteria are a type of biological cell. They constitute a large domain of prokaryotic microorganisms. Typically a few micrometres in length, bacteria were among the first life forms to appear on Earth, and are present in most of its habitats. Wikipedia

Explanation:

a member of a large group of unicellular microorganisms which have cell walls but lack organelles and an organized nucleus, including some that can cause disease.

What type of evolutionary adaptations did plants acquire to allow them to grow in areas that were not directly on a water source?

Answers

Answer:

Plants developed roots to absorb water from the ground

Answer:

Vascular seedless plants evolved specific structures to transport and hold fluids, reducing dependence on water sources.

Explanation:

If given the ability to hold on to water, the plant does not have to frow directly on a water source.

Which of the following is NOT an organ system in the human body?
A. Endocrine system
B. Replicatory system
C. Digestive system
D. Lymphatic system

Answers

B. The replicatory system is not a organ sytem in the human body.
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How did Mary Wollstonecraft respond to the French Revolution?A. Wollstonecraft opposed the Revolution because of its reliance onEnlightenment philosophies.B. Wollstonecraft largely ignored the Revolution because it did notinclude any female leaders.C. Wollstonecraft viewed the Revolution as a chaotic event that waslikely to harm women.D. Wollstonecraft was outraged that the Revolution did not provideequal education for women. What does the existence of large mounds, like the ones shown inthe image, indicate about the Midwest Native Americans? PNS axons are vulnerable to cuts, crushing injuries, and other types of trauma. However, a damaged ____________ can regenerate if the ____________ remains intact and a critical amount of ____________ remains. The success of peripheral nervous system axon regeneration depends upon two primary factors: (1) the amount of ____________ and (2) the ____________ between the site of the damaged axon and the ____________ . The possibility of repair is ____________ with an increase in either of these two factors. Neurolemmocytes play an active role in regeneration pleas help given parallelogram ABCD find m When butane reacts with Br2 in the presence of Cl2, both brominated and chlorinated products are obtained. Under such conditions, the usual selectivity of bromination is not observed. In other words, the ratio of 2-bromobutane to 1-bromobutane is very similar to the ratio of 2-chlorobutane to 1-chlorobutane. Can you offer and explanation as to why we do not observe the normal selectivity expected for bromination Write instruction to recharge the mobile phone. TRIANGLES please help!! :) please help, its urgent ! 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