which of the following are structures common to all chordates? choose all that apply a dorsal nerve cord b, lungs c, true jaws d, pharyngeal breathing apparatus e, backbone

Answers

Answer 1

Answer:

tbh, dk

Explanation:

lol


Related Questions

10. Which process uses special proteins on the surface of the membrane
to identify specific molecules for transport into the cell?
a. phagocytosis
b. pinocytosis
C. receptor-mediated endocytosis
d. exocytosis

Answers

Answer:

C. Receptor-mediated endocytosis

Phospholipids are lipids that form most of the structure of the cell membrane. True or false

Answers

I could be wrong but I believe the answer is True.

what are the childhood disease?​

Answers

Answer:

well childhood disease is diseases that happens in childhood like chickenpox and etc

I hope it helps

[tex]\huge\textbf{Answer :-}[/tex]

[tex]\large\underline{\textsf{\textbf{Childhood Diseases}}}[/tex] are diseases that mainly occur or become symptomatic when a person is a child (0 - 18) years. The term is quite self-explanatory. Few examples will be Common Cold, whopping cough etc. Most of the childhood diseases are not dangerous.

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Protein misfolding causes ____.​
a.​arthritis
b.Creutzfeldt-Jakob disease​
c.​schizophrenia
d.​immunodepression
e.​tuberculosis

Answers

Answer:

b

Explanation:

Explanation:

everything can be found in the picture

trình bày cơ chế hấp thụ và chuyển hóa lipid từ đường tiêu hóa ở người?

Answers

Trong dạ dày được tách rời khỏi các chất thực phẩm khác. Trong ruột non, mật hoa tiết ra chất béo trong khi các enzyme tiêu hoá chúng. Các tế bào ruột hấp thụ chất béo. Các a - xít béo chuỗi dài tạo thành một cấu trúc lipoprotein lớn được gọi là một hạch nguyên tử có thể vận chuyển chất béo qua hệ bạch huyết.

The enzyme could become spatially distorted, thus reducing the ability of the active site to catalyze the reaction. Tight enzyme-substrate binding will reduce the forward rate constant for the reaction. Tight binding of the enzyme to its substrate will pull the substrate out of solution, thus decreasing the driving force for the forward reaction. Tight binding of the enzyme to its substrate will result in the enzyme-transition state complex being higher in energy than with weaker binding. All of the above.

Answers

Answer:

All of the above.

Explanation:

All the given options are the potential disadvantage of an enzyme that have a very high affinity for its substrate.

The enzyme can be distorted spatially and thus reduces the ability to catalyze the reaction of the active site.

The tight binding of an enzyme to a substrate results in enzyme transition state complex which is higher in energy.

The tight binding also pulls the substrate out of the solution and decreases a driving force in the forward reaction.

is meiosis similar to mitosis true or false​

Answers

Answer:   Meiosis and mitosis are both cell division cycles that result in daughter cells. Meiosis occurs in the gametes, while mitosis occurs in all non-gamete cells. Meiosis also results in two cell division rounds, whereas mitosis only has one cell division round.

Describe how decomposers link the living and non-living parts of an ecosystem

Answers


Decomposers are living organisms that breaks down other living and non-living things into smaller parts.

Decomposers can recycle dead plants and animals into chemical nutrients such as carbon and nitrogen that are released back into the soil, air and water as food for living plants and animals.
Decomposers are living organisms that breaks down other living and non-living things into smaller parts. ... Decomposers can recycle dead plants and animals into chemical nutrients such as carbon and nitrogen that are released back into the soil, air and water as food for living plants and animals.

Decomposers play a critical role in the flow of energy through an ecosystem. They break apart dead organisms into simpler inorganic materials, making nutrients available to primary producers.

Decomposers, such as bacteria, fungi, termites, and earthworms, are scavengers that feed on the organic material found in dead producers and consumers. They break down the organic material to the nutrient level. Nutrients in soils are essential for producers to grow. Nutrients include nitrogen, carbon, and phosphorous. Thus, dead consumers (and producers) are recycled back into new producers.

Refer to the given diagram to answer Question 9
Y-ANTIBODIES
X-WBC
V-RBC
W-PLATELETS
QUESTION 9
ry
Which of the labelled structures in the diagram match the function below.
1.
Contains haemoglobin
II.
Carries out phagocytes
III.
Produces antibodies
J.
Involves in blood clotting
IV
A.
V
Y
W
В.
W
V
Y
С.
V
Y
X
w
D
Y
X
W​

Answers

Answer:

C

Explanation:

Answer c contains all the list listed

This animal has a protostome developmental pattern and a trochophore larva. Identify the major clades that this animal belongs to

Answers

Answer:

Lophotrochozoans (it is a protostome)

Explanation:

Lophotrochozoa is a group (clade) of protostome animals, i.e. animals that undergo a developmental pattern in which the blastopore develops into the mouth. Lophotrochozoa clade includes bryozoans, annelids, molluscs, brachiopods, and platyhelminthes. Most lophotrochozoans have either a lophophore or trochophore larvae during the planktonic stage. A trochophore larva is a marine planktotrophic larva with several bands of cilia that form the locomotory organ (i.e., the prototroch), which is only found within the Lophotrochozoans.

When the larva and the adult form of an organism are different from each other this type of development is called indirect development. For example Porifers and platyhelminthis.

the larval form is Lophotrochozoans (it is a protostome)

Lophotrochozoa is a group (clade) of protostome animals, i.e. animals that undergo a developmental pattern in which the blastopore develops into the mouth.

Lophotrochozoa clade includes bryozoans, annelids, molluscs, brachiopods, and Platyhelminthes.

Most lophotrochozoans have either a lophophore or trochophore larvae during the planktonic stage. A trochophore larva is a marine planktotrophic larva with several bands of cilia that form the locomotory organ (i.e., the prototroch), which is only found within the Lophotrochozoans.

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If you are pushing on a box with
5N, and the box pushes back 5N,
what would the net force be?.
ΑΟ
A. ON
B. 25N
C. 10N

Answers

The correct answer is A. 0N, as there is no net force acting on the box.

The net force in this scenario can be determined by calculating the difference between the applied force and the opposing force. In this case, if you are pushing on a box with a force of 5N, and the box pushes back with an equal force of 5N, the net force would be zero.

Net force is the vector sum of all the forces acting on an object. In this situation, the applied force of 5N is countered by the opposing force of 5N exerted by the box. Since the forces are equal in magnitude and opposite in direction, they cancel each other out.

When the net force is zero, it means that the forces are balanced, resulting in no acceleration or movement of the object. The box would remain at rest or continue moving at a constant velocity if it was already in motion.

Therefore, the correct answer is A. 0N, as there is no net force acting on the box.

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Match the muscle with its type.

1 deltoid:


2 triceps:
.

3 heart:

.

4 sartorius:
.

5 intestine:
.

6 veins:
.

7 biceps:
.

8 trapezius:
.

9 stomach:
.

10 gastrocnemius:
.

a cardiac
b smooth
c striated

Answers

Answer:

1 deltoid: striated

2 triceps: striated

3 heart: cardiac

4 sartorius: striated

5 intestine: smooth

6 veins: smooth

7 biceps: striated

8 trapezius: striated

9 stomach: smooth

10 gastrocnemius: striated

Explanation:

Striated muscle is a type of tissue composed of repeated functional units called sarcomeres, which are the basic contractile unit of the muscle fiber. The striated appearance is caused by repeating bands of actin and myosin proteins. Striated muscle tissue is subdivided into two major parts: 1-cardiac muscle and 2-skeletal muscle. Skeletal muscle is a highly dynamic tissue that is mostly attached by tendons to the bones in the skeleton. This voluntary tissue (skeletal muscle tissue) is composed of multiple fascicles or bundles of muscle fibers. Moreover, cardiac muscle tissue, also known as myocardium, is a type of striated muscle that contracts and releases involuntarily, composed of cells called myocytes present in the heart. Finally, smooth muscle is a type of involuntary and non-striated muscle tissue localized within the walls of organs/structures (i.e., intestine, esophagus, stomach, uterus, urethra, bladder, blood vessels, etc.).

science
the imaginary lines which divide the earth into areas of 15º are called

Answers

[tex]\huge\colorbox{purple}A\colorbox{blue}n\colorbox{purple}s\colorbox{blue}w\colorbox{purple}e\colorbox{blue}r [/tex]

[tex]\color{red}{⚠TheQueenNoNeedAKing⚠} [/tex]

[tex]\color{Violet}\rm{Answer:}[/tex]

longitude lines

longitude lines. Imaginary lines, also called meridians, running vertically around the globe. Unlike latitude lines, longitude lines are not parallel. Meridians meet at the poles and are widest apart at the equator. Zero degrees longitude (0) is called the prime meridian.

[tex]\color{Violet}\rm{☘︎Hopeithelps!}[/tex]

__________________________________

“But you, my Lord, are a God of compassion and mercy; you are very patient and full of faithful love.” — Psalm 86:15 ❤

__________________________________

*Which of the following are all direct methods of flood contro
a. soil conservation, dams, artificial levees
b. dams, artificial levees, overflow channels
C. floodplains, artificial levees, dams
d. dams, overflow channels, soil conservation

Answers

*Which of the following are all direct methods of flood contro
b. dams, artificial levees, overflow channels

The total magnification produced from a 15x ocular and a 4x objective would be

Answers

60. To get total magnification you simply multiply ocular by the objective.

For the following data calculate the MEDIAN.
5, 6, 6, 4, 3, 2, 2, 2, 1,3

Answers

the median is 3 because when you put the numbers in order from least to greatest 3 is the middle number.

Answer:

Mean: 3.4

Median: 3

Mode: 2

Range: 5

Minimum: 1

Maximum: 6

Explanation:

PUT THE NUMBERS IN ORDER TO FIND THE MEDIAN

1, 2, 2, 2, 3, 3, 4, 5, 6, 6

The median is the central number of a data set. Arrange data points from smallest to largest and locate the central number. This is the median. If there are 2 numbers in the middle, the median is the average of those 2 numbers.

Fill in the blank below with the vocabulary word that best completes the sentenc
is the science of naming and classifying organisms based on structura
genetic evidence

Answers

Taxonomy is the science of naming and classifying organisms based on structural comparisons and genetic evidence

Fevers (below 102ºF):

a
Damage essential proteins in your body
b
Inhibit the growth of pathogens and stimulate macrophage action
c
Occur late in the disease process, after the pathogen is almost eliminated
d
Require emergency treatment

Answers

Answer:

Inhibit the growth of pathogens and stimulate macrophage action

The correct answer is B

Choose one biogeochemical cycle and explain.

Answers

The carbon cycle:

The carbon cycle is the process in which carbon travels from the atmosphere into organisms and the Earth and then back into the atmosphere. Plants take carbon dioxide from the air and use it to make food. Animals then eat the food and carbon is stored in their bodies or released as CO2 through respiration.

Hope this helps :)

If a bacterial isolate show intermediate to moderate resistance to an antimicrobial, how might this drug still be successfully used in the treatment of this microbe

Answers

Answer:

Due to its effectiveness.

Explanation:

This drug still be successfully used in the treatment of this microbe because of its effectiveness on the microbes. All the microbes did not got resistance against the antimicrobial chemical and they are not full proof from the antibiotics so that's why the antimicrobial are used in the treatment of microbes. If all the microbes attain resistance against antimicrobial drug so it can't any affect on the microbes.

a) In how many cases in the genetic code would you fail to know the amino acid specified by a codon if you knew only the first two nucleotides of the codon?
b) In how many cases would you fail to know the first two nucleotides of the codon if you knew which amino acid is specified by it?

Answers

Answer:

a) 28 cases

b)  3 cases

Explanation:

a) From the table of genetic codes, there are 28 codons that specify more than one amino acid assuming only the first two nucleotides are considered. In these cases, one cannot outrightly specify the amino acid the genetic codes are coding for without knowing the last nucleotide of the codes. For example, UU can be for Phenylalanine or Leucine, CA can be for Histidine or Glutamine, etc.

b) From the table of genetic codes, the first two nucleotides of Arginine can be either of CG or AG, that of Serine can be either of UC or AG while that Leucine can be either of CU or UU. Only in these 3 cases would one fail to know which are the first two nucleotides assuming the name of the amino acids are given.

See the attached image for the genetic code.


X-ray crystallography is a very important process that is used to help identify the structure of molecules. What exactly does this process show?

Answers

Answer:

can reveal the precise three-dimensional positions of most atoms in a protein molecule because x-rays and covalent bonds have similar wavelength, and therefore currently provides the best visualization of protein structure.

Because x-rays and covalent bonds have comparable wavelengths, they can now give the finest imaging of protein structure because they can reveal the precise three-dimensional locations of the majority of atoms in a protein molecule.

What is X-ray crystallography?

X-ray, a scientific technique called crystallography may be used to map out the atoms of a crystalline material in three dimensions. By using most crystalline materials' interatomic gap as a diffraction gradient for x-ray radiation, which has wavelengths on the order of 1 angstrom, this method makes use of the interatomic spacing of most crystalline solids.

Wilhelm Rontgen made the discovery of x-rays in 1895. Up until 1912, there remained disagreement about whether x-rays constituted electromagnetic energy or particles. Researchers recognized that this light's wavelength would need to be in the range of 1 Angstrom (A) if the wave theory was accurate.

It would be necessary to use a gradient with separation on the same order of magnitude as the light for diffraction and measurement of such tiny wavelengths.

To diffract the x-ray beams, the arrangement of the atoms must be in an ordered, periodic form. The specific arrangement of atoms in that crystal is then revealed through a sequence of mathematical computations to create a diffraction pattern. The principal technique still in use today for studying the structure and bonding of organometallic compounds is X-ray crystallography.

Therefore, since x-rays and covalent bonds can display the precise three-dimensional locations of the majority of atoms in a protein molecule, they provide the best imaging of protein structure currently achievable.

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Click the - button that is to the left of the intensity scale to zoom out such that the top of the scale is at 100. Move the temperature slider to that of the Sun. The red part of the thermometer on the far right should just be touching the line marked Sun. Approximately what temperature is the surface of the Sun?

Answers

Answer:

5,500°C - 6,000°C

Explanation:

Approximately, 5,500°C - 6,000°C temperature is the surface of the sun.

What is thermometer?

An instrument for measuring and indicating temperature, typically one consisting of a narrow, hermetically sealed glass tube marked with graduations and having at one end a bulb containing mercury or alcohol.Which expands and contracts in the tube with heating and cooling.

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What is natural selection and how does it drive the evolution of a virus?

Answers

Viruses undergo evolution and natural selection, just like cell-based life, and most of them evolve rapidly. When two viruses infect a cell at the same time, they may swap genetic material to make new, mixed viruses with unique properties. For example, flu strains can arise this way.

Which of the following junctions binds a cell to another cell and is linked to keratin intermediate filaments?

a. desmosome
b. tight junction
c. adherens junction
d. hemidesmosome

Answers

A is the correct answer

Density is mass per unit of volume. Which pair of lab instruments would a student use to measure the density of seawater?

Answers

answer:

a balance and a graduated cylinder

Explanation

Density is mass per unit and it is property characteristic of a substance. The arrangement of the mass of atoms and their size is what determines the the density of a substance.

For a student to measure the density of seawater he/she is required to use a balance and a graduated cylinder where a balance will be used to measure the mass of the mineral sample and then a graduated cylinder to determine the volume.

function of Iris?
function of Suspensory ligament?
function of Yellow Spot?
function of Choroid?
function of retina?​

Answers

Answer: See explanation

Explanation:

• Function of Iris?

The Iris simply regulates the amount if light that'll enter ones eyes.

• function of Suspensory ligament?

The sensory ligament maintains and also supports the eyeball's position within the orbit, while also preventing the eyeball's downward displacement of the eyeball.

• function of Yellow Spot?

A yellow spot refers to the area which can be found on the retina where there is beat vision. It is the part where maximum light falls

• Function of Choroid?

The choroid supplies nutrients to the outer retina and also maintains the volume of the eye and its temperature.

• function of retina

The retina receives light which is converted into neural signals, and this will then be sent on to the brain.

Name the two systems in a growing plant​

Answers

Answer:

1. The Shoot System

2. The Root System

Explanation:

Answer:

1) the shoot system, and 2) the root system.

Explanation:

Which statement describes Mendel’s hypotheses regarding gametes?
A) gamete carries two genes for a trait.
B) gamete carries one allele for a gene.
C) gamete can carry multiple alleles for a trait.
D) Some gametes are dominant and some are recessive.

Answers

Answer:

The correct answer is B. A gamete carries one allele for a gene.

Explanation:

Gamete (also called sex cell or reproductive cell) is a haploid cell (having half number of chromosome as compared to the parent cell) that is produced through a cell division, termed as meiosis in sexually reproducing organisms.

According to the Law of segregation given by Gregor Mendel-

During the process of gamete formation, the two alleles of each gene segregate from one another so that a gamete carries one allele for a gene.

Thus, option B) is the right answer.

Answer:

B.

Explanation:

which method of evolution best defines the figure:


A. fossilization

B. non-random mating

C. natural selection

D. gene flow

Answers

Answer:

C) Natural Selection

Explanation:

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my children my africa diary entry about isabel Which country declared war against Great Britain and then sent money and troops to aidthe American Patriots? A) CanadaB) France C) GermanyD) Russia Can someone please explain to me a easier way of understanding this please What is one difference between a "newly globalized" country and a "nonglobalized" country? A. The type of government B. The form of currency C. The type of religion D. The level of poverty Mula sa kuwentong binasa Ang Alamat ng Bulkang Mayon" ibigay ang buod o lagom nito sa 8 hanggang 10 na pangungusap. 163 mL of 2.75 mol/L aluminum sulfate is to have all aluminum ions removed by adding a 3.65 mol/L sodium sulfide solution. Al2(SO4)3(aq) + 3 Na2S(aq) Al2S3(s) + 3 Na2SO4(aq)What is the minimum volume of sodium sulfide that must be added to completely remove all the aluminum ions? What mass of aluminum sulfide will form? s is inversely proportional to t. When s=0.5, t=7Work out s when t=0.8 Select the three reasons that the gaming industry is set to grow.A) more colleges offering jobs in game designB) a decrease in the average age of gamersC) an expanding market on mobile phonesD) expanding markets in AsiaE) new accessories that will attract more players Which city is located in the North Central Hills region Which of the following careers would physicists be least qualified to perform,based on their training?A. Nuclear engineerB. Research lab managerC. Solar panel designerD. GardenerSUBMIT During what was known as the Middle Passage?A. guns, cloth, and cash were shipped from Europe to Africa.B. slaves were transported from Africa to the Americas.C. products were sent from the colonies to be sold in Europe.D. slaves were sent to Europe in exchange for agricultural products. Name a pair of complementary angles in the diagram above.21 and 22Z2 and 2324 and 250 27 and 29 Which side lengths form a right triangle? Adrenergic receptors Select one: a. can be activated by the release of epinephrine. b. have two structural forms - muscarinic and nicotinic. c. when activated stimulate skeletal muscles to contract. d. can be found in both the sympathetic and parasympathetic divisions. e. are activated by the release of acetylcholine. PLEASE HELP EASY SPANISH.Fill in the blanks with the correct form of the verb in parentheses. Factorise fully 2a^2b + 6ab^2 Using the equation [tex] \sqrt{x + 7} + 5 = x[/tex], are both x = 2 and x = 9 solutions or are one/both of them extraneous solutions? Explain. The metal wire in an incandescent lightbulb glows when the lights is switch on and stops glowing when switched off. This simple process is which kind of a change? Rome is the capital of Italy. I need to know where I have to put the punctuation mark Classical conditioning involves Multiple Choice using reinforcement to alter the probability that a given behavior will be repeated. basing one's behavior on the observed outcomes of similar behaviors by others. using an established relationship between a stimulus and response to generate the same response to a different stimulus. using reasoning to develop new knowledge. None of these choices are correct.