Hi, I want to know what tract means in biology. Pls, elaborate on that.

Answers

Answer 1

Answer:

Tract is the system of body parts , they perform functions together .

Explanation:

A Scientific tract , designed for instruction and entertainment, and adapted to schools, lyceums and families.


Related Questions

How and why might the R0 value change over time during an outbreak? pls help

Answers

Answer:

Vaccinations

Explanation:

For example, if a disease has an R0 of 18, a person who has the disease will transmit it to an average of 18 other people. That replication will continue if no one has been vaccinated against the disease or is already immune to it in their community. So if you have (for example) a vaccination then you're less likely to get it, resulting in a lower R0

Which term best describes all of the different species of insects living in a rainforest? a number of populations a niche a number of communities a habitat

Answers

Answer:

The correct answer is a number of communities.

Explanation:

Population can be defined as a group of all members of a particular species living in a specific geographic region whereas a community is the population or group of all species that are inhabited in the particular geographic region.

hope this helps

pls mark brainliest

Answer:

communities

Explanation:

A community is made up of several populations of different species interacting in an area. When you also include the nonliving components found in that area, like water and sunlight, you get an ecosystem.

Which two organisms in the food web break down matter from dead plants and animals?

1. Grasshopper
2. Grass
3. Duck
4. Ant
5. Lizard
6. Frog
7. Tadpole
8. Snake
9. Sunlight
10. Algae
11. Decayed
12. Matter
13. Bacteria
14. Earthworm​

Answers

Answer:

bacteria and earth worm

Explanation:

a food web in which the dead plants and animals are fed on comprises of detritus feeders

the detritus feeders allow continuous flow of energy in the web

earthworms and bacteria are detritus feeders that feed on organic waste.

Vasoconstriction of the afferent arteriole and/or vasodilation of the efferent arteriole will cause a(n) __________ in glomerular filtration rate (GFR).

Answers

Afferent arteriolar vasoconstriction decreases blood flow into the glomerulus, which causes the glomerular-capillary blood pressure to decrease, leading to a(n) decrease in the net filtration pressure and a resultant decrease in the GFR.

What happens if the afferent arteriole is vasoconstriction?

Constriction of the afferent arterioles has two inpact

it increases the vascular resistance which lessens renal blood flow (RBF), and it lowers the pressure downstream from the constriction, which lower the GFR.

Thus, Afferent arteriolar vasoconstriction reduces blood flow into the glomerulus, which causes the glomerular-capillary blood pressure to lessens .

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___ carry motor commands from the brain along the spinal cord.

Answers

Answer:

i guess "motor neuron" is the answer

Explanation:

Which embryological brain vesicle will form the cerebrum?.

Answers

Answer: telecephalon

Explanation: The prosencephalon enlarges into two new vesicles called the telencephalon and the diencephalon. The telecephalon will become the cerebrum.

4. According to Newton's laws what might happen to the Earth if its orbit moved farther away from the Sun? The Sun's gravitational pull on the Earth would increase b. The Earth's gravitational pull on the Moon would increase b The Sun's gravitational pull on the Earth would stay the same d. The Sun's gravitational pull on the Earth would decrease C.​

Answers

Answer:

The Sun's gravitational pull on the Earth would decrease.

Explanation:

According to Newton's laws,  if its orbit moved farther away from the Sun, the Sun's gravitational pull on the Earth would decrease. The correct option is d.

What is gravitational force?

Gravitational force is the force that attracts everything towards it. The third law of Newton, or the law of action-reaction, states that:

As soon as object A applies a force (referred to as an action) to item B, the opposite force is then applied to the first object (referred to as a reaction).

In other words, when two things exert a force on one another, the two forces have the same magnitude (while the directions are opposite).

The gravitational force that the Earth exerts on the Sun is consequently equivalent to and, in fact, opposite of the gravitational force that the Sun exerts on the Earth, according to Newton's third law.

Therefore, the correct option is d. The Sun's gravitational pull on the Earth would decrease.

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PLS HELP! WILL GIVE BRAINLIEST!
Complete this sentence: Primary consumers receive about
of the energy available in biomass from producers.

100 percent

50 percent

35 percent

10 percent

Answers

Answer:

10 percent

Explanation:

Answer:

10 percent

Explanation:


3. The means by which a disease is contracted or
"spreads” is referred to as:
a.
transmission
b. transmutation
C. viral
d. spontaneous generation

Answers

Answer:

c viral

Explanation:

use the corona pandemic as an example, it spread quickly and became viral

Help ASAP ASAP
Which system warns residents of tsunamis?
15 PTS
The Tsunami Warning System
The Ring of Fire Alert System
The Earthquake Warning System
The Pacific Warning System

Answers

Answer:

The Tsunami Warning System

Explanation:

This includes monitoring for tsunamis and the earthquakes that cause them to provide timely and accurate tsunami messages.

The Tsunami Warning System warns residents of incoming tsunamis.

What are the three main functions of the cardiovascular system?.

Answers

The cardiovascular system has three main functions:

transport of oxygen, carbon dioxide and nutrients.

clotting of open wounds.

regulation of body temperature.

What does the finch teach Darwin?

Answers

Answer:

evolu- tionary questions aboutadaptation and the multiplication of species: how these processes happen and how to interpret them.

Explanation:

Darwin's finches are particularly suitable for asking evolu- tionary questions aboutadaptation and the multiplication of species: how these processes happen and how to interpret them. All species of Darwin's finches are closely related, having derived recently (in geological terms) from a common ancestor.

If plasma accounts for 55% of the blood volume and plasma is 90% water, how many gallons of
water could be extracted from an adult female's blood?

Answers

About 45% of the various blood cell types and about 55% of blood plasma make up blood. A pale yellow, slightly hazy liquid  blood plasma. Water makes up more than 90% of blood plasma and less than 10%

What is plasma used for in the body?

Your blood's liquid portion, called plasma, makes up 55% of the total volume of your plasma. Plasma circulates throughout the circulatory system and is required for your body to heal from wounds, supply nutrients, remove waste, and prevent infection.

Where can you find plasma?

The majority of your blood is plasma. It accounts for more than half (about 55%) of the entire material. Plasma is a pale yellow liquid that forms when the blood is separated from the rest of it. Plasma transports water.

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ATP can convert to ADP during ____
oxidation
phosphorylation
dephoshorylation

Answers

ATP can convert to ADP during dephoshorylation
atp can convert to adp during dephoshorylation

Many people report having a phobia for snakes even though they have never been exposed to a snake. this fear is an example of __________. a. helplessness to an unfamiliar stimuli b. misinterpretation of stimuli c. classical conditioning d. preparedness please select the best answer from the choices provided a b c d

Answers

Many people report having a phobia of snakes even though they have never been exposed to a snake. This fear is an example of preparedness.

What do you mean by Phobia?

Phobia may be defined as an act of overwhelming fear of an object, place, situation, feeling, or animal.

Without seeing a snake, people picturise its image in their mind as well as familiar with its actions of biting and hissing. This reference leads to an act of phobia in people.

Therefore, many people report having a phobia of snakes even though they have never been exposed to a snake. This fear is an example of preparedness.

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Answer:

The answer is preparedness. i just got a 100.

Explanation:

Question 2 of 35
The rock shown below was formed when small particles
were deposited in the water and then pressed together
over time. It contains small bits of the remains of sea
animals.
Which type of rock is this?

Answers

Sorry, I'm not sure.

I would suggest asking a trusted adult or teacher or redoing the lesson. Cheating isn't a good path: you will not do well in the future if you always search for answers on the internet.

What hormone, produced in the anterior pituitary gland, works in conjunction with gonadal steroids to promote bone development in males?.

Answers

The hormone that's produced in the anterior pituitary gland, and works in conjunction with gonadal steroids is the Luteinizing hormone.

What hormone, produced in the anterior pituitary gland, works in conjunction with gonadal steroids to promote bone development in males?

Generally, Hormones are chemical messengers in your body. They circulate via the circulation to tissues or organs.

In conclusion, the Luteinizing hormone produces in the anterior pituitary gland.

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As frog embryo develops in its egg, its cells divide.


Which term best describes the structure that is replicated during this cell division?


mitochondria


nuclei

chloroplast

cell wall

Answers

Answer:

In the frog tadpole the cartilage cells increase by mitotic division of the fully-formed and functional cell: in addition there are centers of proliferation consisting of small. rapidly-dividin$ cells.

Are these two substances the same ? Explain why they are or are not .

Answers

Answer:

They are the not the same exact thing because they are both pawter both marked as yellow but there not the same yellow and marks they are Conductivity but in order of it to be the same it has to have everything the same and the melting temperatures are different and different Density

Which organisms are described correctly by the gases produced due to cellular processes?

A bird and a butterfly only produce carbon dioxide, while a deer and grass only produce oxygen.
A bird and a butterfly only produce carbon dioxide, while a deer and grass only produce oxygen.

A deer and a tree produce both oxygen and carbon dioxide, while a bird and a butterfly only produce carbon dioxide.
A deer and a tree produce both oxygen and carbon dioxide, while a bird and a butterfly only produce carbon dioxide.

A tree and grass produce both oxygen and carbon dioxide, while a bird, a butterfly, and a deer only produce carbon dioxide.
A tree and grass produce both oxygen and carbon dioxide, while a bird, a butterfly, and a deer only produce carbon dioxide.

A tree and grass only produce oxygen, while a bird, a deer, and butterfly only produce carbon dioxide.

Answers

Answer:

A tree and grass only produce oxygen, while a bird, a deer, and butterfly only produce carbon dioxide.

Explanation:

A species that produces two kinds of gametes, with unequal distribution of cytoplasmic organelles, is said to be a ______ species.

Answers

Answer:

heterogamous

Explanation:

hope this helps

Which tools do meteorologists use to help create weather forecasts? select three options. guesses computer models weather service maps data from instruments personal observations

Answers

Meteorologists are person specialized to use scientific principal to forecast Earth's atmosphere. They use weather service maps, data from instruments and personal observations.

What are Meteorologists ?

A meteorologist is person who applies scientific principles to explain and forecast the changes occurring in an Earth's atmosphere.

They also find out the way of changes in the Earth's atmosphere affecting the climate and the life of the organisms.

Meteorologists are able to predict the changes in the atmosphere by weather service maps, data from the instruments and from the personal observations.

Thus, the correct options are weather service maps, data from the instruments and from the personal observations.

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which of the following is NOT true about the nature of light​

Answers

[tex]\qquad\qquad\huge\underline{{\sf Answer}}[/tex]

The incorrect choice is D. Light has a constant speed of 300,000,000 m/s in any medium.

Actually, wave speed differs from one medium through another, since wave speed is a property that depends on medium in which a wave is propagating. so we can say that it's speed varies from medium to medium.

Phenylketonuria is a(n) _______ disorder, meaning that it is passed from generation to generation via DNA.

Answers

Answer:

inherited

Explanation:

Phenylketonuria is a(n) inherited disorder, meaning that it is passed from generation to generation via DNA.

24. Explain what a DNA probe is and how it could be used to identify a person who carries an allele for a genetic disorder.

Answers

Explanation:

DNA probes are stretches of single-stranded DNA used to detect the presence of complementary nucleic acid sequences (target sequences) by hybridization. DNA probes are usually labelled, for example with radioisotopes, epitopes, biotin or fluorophores to enable their detection.

Laboratory tests, including genetic testing: Molecular, chromosomal, and biochemical genetic or genomic testing are used to diagnose genetic disorders. Other laboratory tests that measure the levels of certain substances in blood and urine can also help suggest a diagnosis.

What are three ways that the function of a root is helped by its structure

Answers

Answer:

Subsequently, question is, what are three ways that the function of a root is helped by its structure? A root's four major functions are 1) absorption of water and inorganic nutrients, 2) anchoring of the plant body to the ground, and supporting it, 3) storage of food and nutrients, 4) trans locating water and minerals to the stem.

Explanation:

In addition to absorbing water and nutrients, they also anchor and support the plant and store food.

What are roots?

Roots are defined as a vascular plant's subterranean portion. Water and essential minerals are taken up by a plant's roots from the earth and sent to the stem. The plant's roots firmly anchor it to the earth.  They first give a plant the anchor it needs to stay put. More significantly, a plant's roots are its life support system because they transport nutrients, water, and air up into the leaves.

The root hairs have a vast surface area, making them ideal for absorbing water from the soil. The absorption increases as surface area increases. There is a semi-permeable barrier on each root hair. Anchoring the plant, absorbing water and dissolving nutrients, transferring them to the shoot, storing nutrients, vegetative reproduction, and binding soil particles are just a few of the crucial roles that roots play in plants.

Thus, in addition to absorbing water and nutrients, they also anchor and support the plant and store food.

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Plants use carbon dioxide to build organic molecules during the process of:.

Answers

Answer:

The answer is Photosynthesis.

Explanation:

Its the process of change and carbon come from CO2.

_____ describes the life cycle of a star. Nuclear fusion The big bang Nebular clouds Stellar evolution

Answers

Answer:

Stellar Evolution

Explanation:

The life cycle of a star is considered/named, stellar evolution.

___ will take calcium from the blood, whereas ___ will deposit calcium into the blood. Group of answer choices

Answers

The parathyroid hormone into the blood which is responsible for the regulation of calcium into the blood.

How calcium in the body is regulated?

When the calcium in the blood is more than the requirement then the parathyroid hormone deposited the calcium into the bones.

While on the other hand, when the calcium in the blood is lower in concentration then this hormone release calcium from the bones so we can conclude that the parathyroid hormone into the blood which is responsible for the regulation of calcium into the blood,

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Which tab on the Excel Ribbon contains the function library?

Question 7 options:

Formulas


Home


Page Layout


Insert

Answers

Answer:

Formulas

Explanation:

The tab on the Excel Ribbon contains the function library, in the formula tab. The correct option is a.

What are ribbons and tabs in Excel?

A ribbon is a group of toolbars found at the top of the window in Office products that are meant to make it easier for you to find the commands you require to finish a task. In the document's upper right corner, click the Ribbon Display Options icon.

The Minimize icon is to the left of it. To display the Ribbon with all tabs and all commands, select Show Tabs and Commands from the menu that appears. The default view is this selection.

The formula tab is used to add functions, outline names, create names, review formulas, and other things. The Ribbon's Formulas tab contains essential and extremely practical features for creating dynamic reports.

Therefore, the correct option is a. Formulas.

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The question is incomplete. The complete question is given below:

Which tab on the Excel Ribbon contains the function library?

a. Formulas

b. Home

c.  Layout

d. Insert

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