Dendrites are the branching extensions of

QUESTION POSTED AT 14/02/2020 - 09:52 AM

Answered by admin AT 14/02/2020 - 09:52 AM

Dendrites are the branching extensions of soma of nurons
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Related questions

What are branches of the tree of life termed? phylogeny phenetics clades none of the above

Answer: Phylogeny

Explanation:

Phylogeny can be defined as the study of branches of a tree( life forms). All the life forms on earth has common ancestry and the branches indicates common ancestry.

Trees are useful in biology to known about the past time for which we have no records. By the help of phylogeny we can get information about the past times.

So, the correct answer is option A

ANSWERED AT 28/02/2020 - 01:06 PM


QUESTION POSTED AT 28/02/2020 - 01:06 PM

When you ____________, air enters the body through the _____ or the _____. From there it passes through the ________, which forces air into the _________ and food into the esophagus. The air travels down the trachea into two branching tubes called ______ and then on into the __________. Fill in the blank. If you need the word choices, put in the Ask For Details section!

When you inhale, air enters the body through the mouth or the nose. From there it passes through the pharynx, which forces air into the trachea and food into the esophagus. The air travels down the trachea into two branching tubes called bronchi  and then on into the lungs.

ANSWERED AT 24/02/2020 - 09:05 PM


QUESTION POSTED AT 24/02/2020 - 09:05 PM

Structural and functional units of the nervous system.A. AxonB. Myelin SheathC. Dendrites D. Glial cellsE. Neuron

E. Neuron or C I believe
Hope this helps.

ANSWERED AT 22/02/2020 - 03:49 PM


QUESTION POSTED AT 22/02/2020 - 03:49 PM

What are the branching, threadlike tubes that make up the bodies of multicellular fungi

The right answer should be  Hyphae

ANSWERED AT 22/02/2020 - 01:54 PM


QUESTION POSTED AT 22/02/2020 - 01:54 PM

Which of these is not a branch of biology? A. botany B. genetics C. zoology D. geology

The answer is geology. Because botany is the branch of biology where we study with plant, zoology is where we study animals and genetics is where we study about genes and stuff. So the answer is 'D'

ANSWERED AT 18/02/2020 - 02:34 PM


QUESTION POSTED AT 18/02/2020 - 02:34 PM

1. A neuron fiber that sends a signal from your hand to your brain is called a _______. a. axon b. cell body c. mitochondriond d. dendrite 2. at approximately what age does nerve conduction achieve maximum capacity? a. 5 b. 10 c. 20 d. 30 3.insulin is to glucagon as ______. a. wet is to dry b. walking is to running c. morning is to afternoon d. a key is to lock

1. A neuron fiber that sends a signal from your hand to your brain is called a _______.a. axon 


2. at approximately what age does nerve conduction achieve maximum capacity?
a. 5 


3.insulin is to glucagon as ______.
d. a key is to lock

ANSWERED AT 01/02/2020 - 01:57 AM


QUESTION POSTED AT 01/02/2020 - 01:57 AM

HELP QUICK PLEASE! Which type of neurons did scientists discover are involved in imitation? A.The axon carries information through electrical impulses away from the cell body to the axon terminals and then to other neurons, muscles, or glands. B.The axon contains the nucleus that controls all the activities of the cell. C.The dendrites regulate the substances that go in and out of the cell. D.The dendrites carry the electrical impulses from the signal receivers to the cell body.

Q1. The answer is mirror neurond.

Mirror neuron is a neuron that fires not only when an animal performs an action, but also when someone else perform the same action. It was discovered in experiments with macaque monkeys using an MRI (magnetic resonance imaging). In the experiment, if a monkey rips a piece of paper, mirror neuron is activated, as well as it is activated when the monkey sees or hears that someone else rip the piece of paper. 


Q2. On the photo, arrow shows D. The dendrites carry the electrical impulses from the signal receivers to the cell body.

The neuron consists of body, dendrites, and axon. Usually there is one axon and many dendrites per cell. Axon carries impulse from the cell body, while dendrites carry impulses to the cell body.

ANSWERED AT 01/02/2020 - 01:52 AM


QUESTION POSTED AT 01/02/2020 - 01:52 AM

In a dihybrid cross between RrTt and RRtt, what are the genotype and phenotype ratios of the offspring, assuming R and T are dominant? I did the punnett square but can't figure out the branch diagram

Answer:

Phenotypic ratio=1:1

Genotypic ratio=1:1:1:1

Explanation:

This is a dihybrid cross involving two genes R and T where the alleles R and T are dominant over alleles r and t respectively I.e. allele R and T will mask the expression of alleles r and t respectively, in a heterozygous state.

In a cross between RrTt and RRtt, meiotic division will occur and each parental's allele will separate into gametes independently of one another. The following possible gametes produced are:

RrTt: RT, Rt, rT and rt

RRtt: Rt, Rt, Rt, and Rt

According to the punnet square (see attached image), 16 possible offsprings will be produced with the following genotypes:

4 RRTt, 4 RRtt, 4 RrTt, and 4 Rrtt

Hence, the genotypic ratio will be 1:1:1:1

Among the 16 possible offsprings, 8 will have a genotype in which both R and T are expressed, while 8 will have a genotype where only R is dominant and t is recessive (tt). Hence, only two phenotypes will be produced in equal ratio 1:1.

ANSWERED AT 29/01/2020 - 10:40 AM


QUESTION POSTED AT 29/01/2020 - 10:40 AM

Liverworts, mosses and hornworts are non-vascular plants that reproduce by forming a. branches. b. spores. c. stems. d. seeds.

I am gonna say answer b. Spores

ANSWERED AT 27/01/2020 - 12:22 AM


QUESTION POSTED AT 27/01/2020 - 12:22 AM

Please help. . . . Cells lining the trachea have whip-like motile extensions on their free surfaces. What are these extensions, what is their source, and what is their function?

These whip-like motile extensions on the free surfaces lining the trachea is called cilia. These are tiny hairs in the respiratory tract and their function is to beat mucus and dirt continuously so these will move up and out of the lungs. 

ANSWERED AT 24/01/2020 - 11:53 AM


QUESTION POSTED AT 24/01/2020 - 11:53 AM

Rita loves animals and wants to work at a wildlife sanctuary. Which branch of biology should she study?

Zoology which is the study of animals.

ANSWERED AT 24/01/2020 - 03:42 AM


QUESTION POSTED AT 24/01/2020 - 03:42 AM

Which question is most likely to be found in a dichotomous key for identifying a tree by its leaves? A-What is the shape of the tree’s leaves? B-What type of birds prefer nesting in the tree? C-Are the leaf bases attached opposite to each other on the branch? D-Are the leaves shaped in a way that slows the evaporation of water?

The answer is  C, are the leaf bases attached opposite to each other on the branch ? A dichotomous key is a tool that may be used to identify trees. It always gives two choices in each step and following all the steps will lead to the name of the tree being identified. Dichotomous key is a tool used to identify unknown organisms by leading a user through a sequence of paired, either or choices, to help them identify the unknown organisms.

ANSWERED AT 22/01/2020 - 02:20 AM


QUESTION POSTED AT 22/01/2020 - 02:20 AM

A person is walking through a park. A branch from a tree falls, nearly hitting her. Her heartbeat speeds up. Which part of the nervous system was responsible for this?

If a person is walking through a park, and a branch from a tree falls, nearly hitting her, and her heartbeat speeds up, the part of the nervous system that was responsible for this was sympathetic nervous system.

ANSWERED AT 22/01/2020 - 12:36 AM


QUESTION POSTED AT 22/01/2020 - 12:36 AM

Which is the best definition of a phylogenetic tree? A)a table of classification that is based only on physical characteristics B)eight levels of taxonomic categories that are used to classify organisms C)a branching chart that depicts evolutionary relationship among organisms D)organisms organized based on structure and genetic comparisons

A phylogenetic tree  is a branching diagram or "tree" showing the inferred evolutionary relationships among various biological species or other entities—their phylogeny—based upon similarities and differences in their physical or genetic characteristics.

So the best choice is 
C)a branching chart that depicts evolutionary relationship among organisms

ANSWERED AT 22/01/2020 - 12:16 AM


QUESTION POSTED AT 22/01/2020 - 12:16 AM

Certain polymers have many start points as well as many end points. What are these polymers called? a. Linked polymers b. Linear polymers c. Branched polymers

The answer is c. Branched polymers.

Polymer is a large molecule formed by joining several monomers. The simplest polymers are linear polymers which have no branches. But, some polymers have many start point and end points known as branches, so those polymers are called branched polymers. They could be star polymers, brush polymers, comb polymers, etc.

ANSWERED AT 21/01/2020 - 08:30 AM


QUESTION POSTED AT 21/01/2020 - 08:30 AM

Suppose a paleontologist discovered a fossil skull that he believes might be distantly related to primates. Unlike true primates, the face is not quite flat and the eyes do not face completely forward. The paleontologist would most likely conclude that the animal lacked the ability to form extended family groups. the ability to grip branches precisely. the ability to manipulate tools. the ability to judge the location of tree branche

The answer is the ability to judge the location of tree branch.

Evolutionary tree represents a relationship between different group of organisms. Tree branches represent decedent groups while nodes are common ancestors of those decedent groups. This fossil skull could represent a new tree branch, so the paleontologist could judge its location.


ANSWERED AT 21/01/2020 - 07:55 AM


QUESTION POSTED AT 21/01/2020 - 07:55 AM

Which of these is true with respect to cladistics? A. It is the same as phylogeny. B. It is based on phylogeny. C. It is a branch of phylogeny.

The correct answer is C. Cladistics is a branch of phylogeny. Cladistics is concerned with all branching. It is a way of grouping branches together while phylogeny is a way of tracking relationships in evolution. Phylogeny shows the history of an organism's evolution.

ANSWERED AT 21/01/2020 - 01:30 AM


QUESTION POSTED AT 21/01/2020 - 01:30 AM

Which best describes the difference between protists that have cilia and those that have flagella? Those that have cilia are animal-like protists, and those that have flagella are plant-like protists. Those that have flagella are animal-like protists, and those that have cilia are plant-like protists. Those that have cilia have hair-like extensions for movement, and those that have flagella have a single hair-like extension for movement. Those that have cilia are heterotrophs, and those that have flagella are autotrophs.

Those that have cilia have hair-like extensions for movement, and those that have flagella have a single hair-like extension for movement.Those that have cilia have hair-like extensions for movement, and those that have flagella have a single hair-like extension for movement.

I just took the test and I got this correct. Hope this helps :)

ANSWERED AT 20/01/2020 - 08:07 PM


QUESTION POSTED AT 20/01/2020 - 08:07 PM

If, after extensive research, the expected observations predicted by a theory fail to materialize, then the theory _____. is confirmed is probably false should be abandoned or modified should never be retracted

The correct answer here is that if, after extensive research, the expected observations predicted by a theory fail to materialise, then the theory should be abandoned or modified. In an instance where a theory cannot be proved, it is not confirmed and is false, so none of the other possible answers for this question are true statements.

ANSWERED AT 20/01/2020 - 07:06 PM


QUESTION POSTED AT 20/01/2020 - 07:06 PM

Individual nerve cells are called _____ A: dendrites B: Neurons

The answer to this is B.Nuerons

ANSWERED AT 20/01/2020 - 05:46 PM


QUESTION POSTED AT 20/01/2020 - 05:46 PM

Which best characterizes the Precambrian era? A. abundant plants and animals B. dinosaurs C. small, one-celled organisms and primitive jellyfish D. extensive mountain building

Answer:

It is C

Explanation:

Because everything's starts out small and they are the smallest in the eras because one cell turns to two cells and etc. it was the beginning of all life forms . It couldn't be dinosaurs because they were in the Mesozoic era. At the time of the Precambrian  era i think it was before the Phanerozoic eon

ANSWERED AT 20/01/2020 - 02:29 AM


QUESTION POSTED AT 20/01/2020 - 02:29 AM

Two advantages for plants to grow on the branches of trees

They get nutrients from the trees and a place to shelter from predators 

ANSWERED AT 20/01/2020 - 01:57 AM


QUESTION POSTED AT 20/01/2020 - 01:57 AM

An acorn with a mass of .0300 kilograms is hanging from a branch in a tree. It is 2.50 meters from the ground. What is the potential energy of the acorn?

The answer is 0.74 J.

The potential energy of the object is its stored energy. Gravitational potential energy is the stored energy of the object as the result of its height can be expressed as:
E = m · g · h
where
E - the potential energy of the object,
m - the mass of the object,
g - gravitational acceleration (g = 9.81 m/s²),
h - the height of the object.

It is given:
g = 9.81 m/s²
m = 0.03 kg
h = 2.5 m

Therefore:
E = m · g · h
⇒ E = 0.03 kg · 9.81 m/s² · 2.5 m
⇒ E = 0.03 · 9.81 · 2.5 kg ·m/s² · m
⇒ E = 0.74 kg ·m²/s²
⇒ E = 0.74 J

Therefore, the potential energy of the acorn is 0.74 J.

ANSWERED AT 18/01/2020 - 12:51 PM


QUESTION POSTED AT 18/01/2020 - 12:51 PM

A person is walking through a park a branch from a tree falls nearly hitting her her heartbeat speeds up which part of the nervous system was responsible for this ?? A. Parasomatic B. Sympathetic C. Somatic D. Parasympathetic

A person who has almost been hit by a falling branch their sympathetic nervous system will be responsible for the heartbeat that speeds up. This may also cause the person decreased motility as they are experiencing a fright. The sympathetic nervous system controls a persons flight or fight response in the body. The correct answer is B.

ANSWERED AT 18/01/2020 - 06:38 AM


QUESTION POSTED AT 18/01/2020 - 06:38 AM

What begins when a neuron is stimulated by another neuron or by a stimulus in the environment? A. a threshold B. a resting potential C. an impulse D. a dendrite

The correct answer is (c.) impulse. Impulse beings when a neuron is stimulated by another neuron or by a stimulus in the environment. The nervous impulse is the way of communicating of the neurons to one another. 

ANSWERED AT 18/01/2020 - 05:01 AM


QUESTION POSTED AT 18/01/2020 - 05:01 AM

Which one of the following is an example of resource partitioning? A. A species of butterfly and a species of bee that pollinate the same flower B. Two species of mice—one that lives in the woods and the other that lives in fields C. Two species of birds that eat fruit from the same tree D. Two species of squirrels—one that eats acorns from the branches and one that eats acorns that have fallen to the ground

Answer:

The correct answer is option D.

Explanation:

Resource partitioning is a situation in which different type of living organisms live in the same ecosystem or environment in a way so it is easy for them to co-exist because they are not sharing the same resources.

Two species of squirrels can co-exist because both types of squirrel are feeding on acorns but they are not getting it from the same location, one feed  on the trees, the other feed on the ground.

Thus, the correct answer would be option D.

ANSWERED AT 18/01/2020 - 04:15 AM


QUESTION POSTED AT 18/01/2020 - 04:15 AM