____ happens when a lineage splits into two or more lines of descent.

QUESTION POSTED AT 14/02/2020 - 10:52 AM

Answered by admin AT 14/02/2020 - 10:52 AM

When a lineage splits into multiple line of descents, then, it leads to speciation. It is a process by which a single population evolves into different species.  The process of speciation leads to the development of two or more species as  the lineages are splitted. These two evolved species are genetically independent.

Hence, the blank can be filled with 'speciation'.

Post your answer

Related questions

Which of these can lessen the erosion of a hillside? A. Trees B. Hikers C. Streams D. Power lines

A the answer choice is trees

ANSWERED AT 28/02/2020 - 03:52 PM


QUESTION POSTED AT 28/02/2020 - 03:52 PM

Plate tectonics suggests that the __________ floats and moves on the _________ for the first line the options are : A) Biosphere B) Lithosphere C) Asthenosphere D) Geosphere for the second line A)LIthosphere B) Asthenosphere C) Geosphere D) Atmosphere

Plate tectonics suggests that the lithosphere floats and moves on the asthenosphere.

so the other answer is incorrect.



ANSWERED AT 28/02/2020 - 02:29 PM


QUESTION POSTED AT 28/02/2020 - 02:29 PM

Which of the following is correct about a muscle contraction? A. Myosin heads attach to sites on actin filaments B. Myofibrils attach to Z lines C. Sacromeres produce actin and myosin D. ATP causes fascicles to contract muscle fibers

The answer is A. Myosin heads attach to sites on actin filaments.Just took the test and that is correct.

ANSWERED AT 28/02/2020 - 04:22 AM


QUESTION POSTED AT 28/02/2020 - 04:22 AM

Select all that apply. The first step of cellular respiration involves _____. a.)The use of oxygen b.)Takes place in the cytoplasm c.)Produces a net gain of 2 ATP d.)The splitting of a glucose molecule

The first step of cellular respiration involves the splitting of a glucose molecule. Correct answer: D The splitting or the breakdown of glucose to two pyruvate molecules is glycolysis ,and that is the name for the first step of cellular respiration. Glycolysis takes place in the cytoplasm of the cell.

ANSWERED AT 27/02/2020 - 11:07 AM


QUESTION POSTED AT 27/02/2020 - 11:07 AM

Which tissue forms coverings, linings, and glands

 Epithelial tissue. is used as a coveringlining, in glands and has a free surface. This tissue forms the most superficial layer of the skin.

ANSWERED AT 27/02/2020 - 09:55 AM


QUESTION POSTED AT 27/02/2020 - 09:55 AM

What germ layer develops into the digestive organs and the digestive lining?

"Endoderm" (Innermost Germ layer) develops into the digestive organs and the digestive lining

Hope this helps!

ANSWERED AT 26/02/2020 - 12:32 PM


QUESTION POSTED AT 26/02/2020 - 12:32 PM

Ependymal cells line many open cavities in the central nervous system (cns. ependymal cells have cilia on the side of the cell that face these openings. what is the most likely function of these ciliated cells?

Ependymal cell present in the central nervous system has an important role in production and control of cerebrospinal fluid (CSF). This ciliated cell acts as sensory for coordination to cellular signaling in the production and control of CSF.

ANSWERED AT 25/02/2020 - 09:33 PM


QUESTION POSTED AT 25/02/2020 - 09:33 PM

Looking at a standing human, what is the line that demonstrates the body's bilateral symmetry? a. facing the side and drawing a line up and down the center of the body b. facing the front and drawing a line up and down the center of the body c. facing the front and drawing a line side to side across the middle of the body d. facing the top of the head and drawing a line across the head touching each ear

Answer:

The correct answer is option B.

Explanation:

Human body has bilateral symmetry in them. The bilateral symmetry means that the body can be divided into exact same halves if a line is drawn down the center. Bilateral symmetry can be demonstrated in humans by facing towards the front and make a lineup and down the center of the body.

Bilateral symmetry creates a mirror image in the body by dividing it in right and left plane. It may assist your brain to understand make visual perception easier and if body is in different positions and.

Thus, the correct answer is option B.

ANSWERED AT 22/02/2020 - 05:28 PM


QUESTION POSTED AT 22/02/2020 - 05:28 PM

Which of the following is true of fuel used by the brain? brain cells are able to use several fuels other than glucose. the brain is always the last in line for new fuel. the flow of blood to the brain can be suspended for at least 5 minutes. interruption of blood flow for even a few seconds impairs brain function. the body can modulate blood flow to meet the energy needs of the brain.

The answer is "Interruption of blood flow for even a few seconds impairs brain function. "
When blood fails to circulate in your brain, there is a tendency that you will be suffering from Brain Ischemia. Brain Ischemia can affect your sight, speaking and body movements.

ANSWERED AT 22/02/2020 - 01:10 PM


QUESTION POSTED AT 22/02/2020 - 01:10 PM

Who proposed cell theory lineage

Charles Autis Whitman was the first person to work on the concept of cell lineage.

ANSWERED AT 21/02/2020 - 09:48 PM


QUESTION POSTED AT 21/02/2020 - 09:48 PM

Amanda is doing a report for her Earth Science class about the four seasons. Which of the following would be an effective scientific model to incorporate in her project? a. A calendar indicating the first days of autumn, winter, spring, and summer b. Four earth models, each with a different tilt to represent the earth’s position relative to the sun, lined up in order of season c. A poster board with pictures of weather characteristic of the four seasons d. A bar graph indicating average high and low temperatures for Amanda’s area in the autumn, winter, spring, and summer

Answer: d. A bar graph indicating average high and low temperatures for Amanda’s area in the autumn, winter, spring, and summer.

A scientific study requires the use of variables, on the basis of which the outcome of the study can be obtained. An independent variable refers to a variable which can be changed or manipulated in an experiment, such changes will affect the dependent variables. Dependent variables is the outcome of the research, it cannot be changed manually instead the changes occur are because of the changes in the independent variable.

In the given situation, a bar graph indicating average high and low temperatures for Amanda’s area in the autumn, winter, spring, and summer would be an effective scientific model to be incorporated in the Amanda project. This is because of the fact that both independent and dependent variables can be analyzed by this way. The temperature is an independent variable, which changes with respect to the climatic conditions, which represent a particular season like autumn, winter, spring and summer which is a dependent variable.

ANSWERED AT 21/02/2020 - 06:38 PM


QUESTION POSTED AT 21/02/2020 - 06:38 PM

Which of these is the human body's first line of defense against invading pathogens such as bacteria and viruses? a.body temperature b.macrophages c.skin cells d.vitamins

I believe the correct answer from the choices listed above is option C. The human body's first line of defense against invading pathogens such as bacteria and viruses would be the skin cells. It is what covers the whole body. Hope this answers the question.

ANSWERED AT 20/02/2020 - 11:22 PM


QUESTION POSTED AT 20/02/2020 - 11:22 PM

Fill in the blank. In the -------- division of meiosis, chromatids split apart, becoming single chromosomes

The division of meiosis chromatids split apart, and become single chromosomes is anaphase

ANSWERED AT 20/02/2020 - 10:21 PM


QUESTION POSTED AT 20/02/2020 - 10:21 PM

PLZZ HELP FASSSSST 1. Which of the following eyects would you expect if red blood cells were shaped like neurons? (1 point) They would not be able to move as easily through capillaries. They would more easily carry out gas exchange in the alveoli. They would not need to be transported through the body. They would become more eyective at picking up urea discarded by body cells. 2. Which of the following is not a function of the skeletal system? (1 point) supports the body works with other body systems to allow movement manufactures new blood cells sends signals to the brain 3. Which of the following body systems are involved in the first line of defense of the immune system against infection? (1 point) integumentary, digestive, respiratory nervous, circulatory, skeletal muscular, endocrine, urinary urinary, skeletal, integumentary 4. Which of the following sets of structures would be involved in ridding the body of unwanted urea? (1 point) sensory neuron, interneuron, spinal cord alveoli, atrium, cilia capillary, nephron, ureter brain, esophagus, small intestine 5. An infectious disease is a disease that (1 point) is caught because the weather turns cold. is caused by pathogens. can be spread only by bacteria. cannot be cured. 6. Which of the following statements is true regarding infectious agents? (1 point) Infectious agents are all too small to be seen without a microscope, and none can be classified as living. All infectious agents are living because they are all classified as microorganisms. Of all the infectious agents, only viruses are considered living because they actively inject their DNA or RNA into host cells. Viruses cannot be treated with antibiotics because they are not living organisms. 7. Which discovery in the 1800s led to the development of germ theory? (1 point) Vaccines could prevent a disease. Antibiotics exist that can be given to counteract an infection. Infection rates decline when health care professionals wash their hands in between seeing patients. Some diseases, such as cancer, are caused by chemical factors. 8. Follow a carbon atom in a piece of bread eaten by a boy. Which of the following describes a path that this atom could take? (1 point) mouth esophagus stomach large intestine blood body cell mouth esophagus stomach small intestine blood body cell mouth large intestine esophagus stomach blood body cell mouth esophagus small intestine stomach blood body cell 9. Which of the following sets of structures is innervated by the somatic nervous system? (1 point) esophagus, stomach, small intestine atrium, ventricle, arteries biceps, triceps, quadriceps diaphragm, bladder, large intestine 10. Which of the following cell types would you expect to increase in number azer a person becomes infected with a pathogen? (1 point) sensory neurons white blood cells epidermal cells red blood cells

I got the first 3 the answers are A,D, and C good luck with the rest

ANSWERED AT 16/02/2020 - 12:10 AM


QUESTION POSTED AT 16/02/2020 - 12:10 AM

On a world map, what two lines are the starting lines for measurement on earths surface? How are these lines used to locate points on earths surface?

Longitude and latitude because it gives you the exact place of anywhere in the world

ANSWERED AT 09/02/2020 - 07:39 PM


QUESTION POSTED AT 09/02/2020 - 07:39 PM

A scientist monitors the contents of five duck nests in parks, five duck nests in zoos, and five duck nests in the wild during the spring and summer for three years. He makes a multiple line graph to plot and compare data for the three locations. Which question describes what the scientist is most likely testing? How many eggs do ducks usually lay? What color of ducks lays the most eggs? What setting is best for producing the most eggs? Where is the safest place to raise ducks?

"What setting is best for producing the most eggs?" is the one question among the following choices given in the question that describes what the scientist is most likely testing. The correct option among all the options that are given in the question is the third option or the penultimate option. I hope it helps you.

ANSWERED AT 09/02/2020 - 07:37 AM


QUESTION POSTED AT 09/02/2020 - 07:37 AM

What prefix would you add to lysis to mean separate or split using water

You want to add the prefix of "hydro"

ANSWERED AT 09/02/2020 - 01:59 AM


QUESTION POSTED AT 09/02/2020 - 01:59 AM

What kind of tissue covers the body and lines internal surfaces?

I believe it is called the Epithelial tissue and it covers the body and lines the internal surfaces of the body I hope this helps!!!!!!!

ANSWERED AT 06/02/2020 - 08:21 PM


QUESTION POSTED AT 06/02/2020 - 08:21 PM

1. Which of the following best states a theme of Romeo and Juliet? (A) Love paves the way for peace (B) The power of nature overcomes the will of man (C) Love is a gentle force that brings families together (D) Actions in haste can bring about destruction 2. In Act IV, Scene 5 of Romeo and Juliet, when Friar Lawrence enters, he says, "Come, is the bride ready to go to church?" Why is this line dramatically ironic? (A) He is late for the wedding service. (B) He knows that Juliet has fallen into a deep sleep that resembles death. (C) He knows that Juliet is already at the church.

1. Actions in haste can bring about destruction.

Many events in the narrative occurred because of the impulsivity of the personas. Tybalt assures to seek vengeance on Romeo because he's responsive to anger when Romeo dispenses up at the Capulet party. Romeo is ready to slay Tybalt after the death of Mercutio. Juliet is keen to kill herself even though she just represents at first when Romeo is dismissed. Romeo was also keen to hang himself when he discovers that Juliet is dead. Juliet then truly kills herself shortly after inspecting Romeo dead.

2.  He knows that Juliet has fallen into a deep sleep that resembles death.

After learning that Romeo was dismissed Juliet fallen into a deep sleep that resembles death. Thus, she cannot possibly be eager to go to church, because she is 'hesitant,' and Friar Lawrence understands it,  but other than him no one realizes this point.

ANSWERED AT 06/02/2020 - 01:17 PM


QUESTION POSTED AT 06/02/2020 - 01:17 PM

Which of these statements is NOT true of the phylogenetic tree? a) It ranks organisms by importance in evolutionary history. b)It depicts an organism's lineage as it changes over time. c) It shows successive events of speciation in which one species gives rise to two.

"was used by economist John Kenneth Galbraith to describe the prosperity of the 1950s" is the statement among the choices given in the question that is not true of the phylogenetic tree. The correct option among all the options that are given in the question is the first option or option "a". I hope it helps you.

ANSWERED AT 01/02/2020 - 01:28 AM


QUESTION POSTED AT 01/02/2020 - 01:28 AM

Which of the following statements about an inflammatory response is true? A) an inflammatory response only occurs when you get a splinter. B) creating antibodies is the first step in an inflammatory response. C) an inflammatory response is the first line of defense for the human body. D) during an inflammatory response, blood flow to the site of a wound will increase.

Answer: Option D

Explanation:

Inflammation can be defied as the response generated by the damaged tissue.There are four cardinal signs associated with inflammation. These are redness, heat, swelling and pain.

The first in the sign is redness, which is cause due to the increased in the blood at the site of inflammation which gives the site of inflammation red color. Then the inflammation is accompanied with swelling, pain and heat in the affected area.

ANSWERED AT 29/01/2020 - 05:15 PM


QUESTION POSTED AT 29/01/2020 - 05:15 PM

1.In which zone is the continental slope located? A)Neritic zone B)Straits C)Pelagic zone D)Oceanic zone E)Seamounts F)Hydrothermal vents G)Cold seeps H)Demersal zone I)Benthic zone 2. What organisms would you expect to find below the low tide line? A)Fish B)crabs C)crustaceans D)shellfish E)phytoplankton F)zooplankton 3. I'm small and thin with large eyes to see in dimly lit areas. I have special organs to help me make my own light. I eat drifting algae and plant matter and share living quarters with crabs, copepods, and snipe eel. In which zone do I live? A) Abyssopelagic Zone B) Bathypelagic Zone

1. The zone in which the continental slope is located is the oceanic zone. The correct option among all the options that are given in the question is the fourth option or option "D".

2. The organisms that you would expect to find below the low tide line are crustaceans. The correct option among all the options that are given in the question is the third option or option "C".

3. 
Abyssopelagic Zone is the zone where i live. The correct option among the two options that are given in the question is the first option or option "A". 

ANSWERED AT 29/01/2020 - 04:31 PM


QUESTION POSTED AT 29/01/2020 - 04:31 PM

What is one role of ATP in the light-independent reaction of photosynthesis? ATP supplies the energy to produce glucose and other carbohydrates. ATP is produced when water molecules are split and chlorophyll electrons are excited. ATP supplies the energy to split water molecules. ATP produces CO2 and O2 molecules.

The answer is ATP supplies the energy to produce glucose and other carbohydrates. ATP is significant in the reduction step in the Calvin cycle of the dark stage of photosynthesis. It phosphorylates a 3-PGA ( 3-Phosphoglyceric acid) molecule before it is reduced by NADPH to a G3P (glycerate 3-phosphate) molecule.

ANSWERED AT 28/01/2020 - 04:36 PM


QUESTION POSTED AT 28/01/2020 - 04:36 PM