Which characteristic do jawless fish and cartilaginous fish have in common?

jaws
scales
skeleton of cartilage
tube-shaped body

Answers

Answer 1

Answer:

C. skeleton of cartilage

Explanation:

i got it right on edge


Related Questions

what is organic farming?

Answers

Answer:

Organic farming is a method of crop and livestock production that involves much more than choosing not to use pesticides, fertilizers, genetically modified organisms, antibiotics and growth hormones. ... provide attentive care that promotes the health and meets the behavioural needs of livestock

Which of the following most likely has the greatest
thermal energy?
A. water going over a waterfall
B. water in a lake
C. water from a hot water tap
O D. water vapor

Answers

It’s c since it’s thermal energy

True-breeding pea plants have
either spherical seeds or dented
seeds with spherical being the
dominant phenotype. A genetic
cross between two F1-hybrid pea
plants for spherical seeds will yield
what percent spherical-seeded
plants in the F2 generation?
a. 100%
b. 75%
c. 50%
d. 25%

Answers

Answer:

b. 75%

Explanation:

DCCD (dicyclohexylcarbodiimide) inhibits oxidative phosphorylation when the substrate is mitochondrial NADH. DCCD is a drug that binds to ATP synthase and blocks proton transport through the ion channel. A) Explain what the consequences are of DCCD on cellular energy production. B) Suggest at least one other cellular effect of DCCD, and prepare an explanation of this effect.

Answers

Answer:

A) Decreases cellular energy production

B) DCCD also affects K+ transport

Explanation:

A) Consequences are of DCCD on cellular energy production: Decreases cellular energy production

ATP-synthase pump is composed of two subunits: F1 catalytic subunit that synthesizes ATP, and F0 proton pumping subunits, that transport H+ through the membrane. F1 subunit might act independently of F0 to produce ATP, but this molecule can not be released without H+ gradient, which generates a movement necessary for ATP release from the catalytic center.

When any of the parts composing F0 react with DCCD, the subunit can not transport H+ through the membrane. DCCD inhibits the enzyme activity by blocking the protons´ flow.

As DCCD blocks the protons´ flow, and the protons´ flow is necessary to release the ATP molecule from the F1 subunit, no other ADP + Pi can enter to F1 subunit, and the production of ATP stops.

B) Other cellular effects of DCCD

There seem to be other effects of DCCD on cell activity, some of which are still under study. To name a few:

Diimide from DCCD seems to stimulate cytochrome b reduction and inhibits its reoxidation by ferricyanide. When exposing the cell to high concentrations of DCCD for a long time, might occur an alteration in the electron transporting chainInhibition of ubiquinol-cytochrome c reductase activity when exposing the cell to high concentrations of DCCD.Inhibition of K+ transport, associated with the inhibition of H+ transport.

Concerning the effect of DCCD on the K+ transport, DCCD stops the extrusion of H+ and the consequent intrusion of K+.

DCCD strongly inhibits the simultaneous flow of H+ and K+. First, it inhibits H+ flow, acidification of the environment stops, but at this point, K+ keeps moving through the membrane. Once the H+ flow has ceased, the K+ flow slowly decreases until it finally stops moving. There is a lag time in the DCCD effect on K+ flow to the instantaneous effect on H+ flow.

Which part of the respiratory system that branches off of the trachea carrying oxygen farther into the lungs?
-lobs
-alveoli
-bronchioles
-bronchi

Answers

Answer:

-bronchi

Explanation:

Hope this helps

Help me out thank u !!!!!

Answers

Answer:

A

Explanation:

the correct answer is a

Why are autumn temperatures in Texas usually warmer than autumn temperatures in Illinois?​

Answers

Answer:

I'm texas it's more hotter which is because it's a southern state. illinois in more northern

PLS HELP WILL GIVE BRAINLIEST

1. The organism represented by letter F is an?
_________________

2: Which letters contain organisms that are autotrophic?

Answers

Answer:

F is a secondary consumer

A and B are autotrophic

A wasp lays eggs on an orb-weaving spider to...
a) force it to protect the wasp and it's larva.
b) make it provide a home and meal for it's larva.
c) use it to carry it's larva Long distance.
d) make it create a cocoon for the larva. ​

Answers

Answer:make it provide a home and meal for it's larva.

Explanation:i did a little bit of research, and the spider provides food and shelter for the larva

8. How are most seeds dispersed to a barren landscape?

Answers

Answer:

Some seeds are transported by the wind and are shaped to float, glide or spin through the air. ... Some seed pods are designed to explode and throw the seeds a good distance from the parent plant. Many plants also use animals to carry their seeds.

Explanation:

When does energy transfer from air to the land?

Answers

Answer:

Conduction, radiation and convection all play a role in moving heat between Earth's surface and the atmosphere. Since air is a poor conductor, most energy transfer by conduction occurs right near Earth's surface

Explanation:

I hope this helps answer your question

Which of these are NOT products
made from the inedible fats from
beef?
A. Face creams and hand lotions
B. Fireworks and other explosives
C. Industrial oils and lubricants
D. Lamp shades and light bulbs

Answers

Answer:

I think it's B

Explanation:

........................

It’s B I’m pretty sure because it’s like an explosion I don’t know

Flower diameter in sunflowers is a quantitative trait. A plant with 6-cm flowers, from a highly inbred strain, is crossed to a plant with 30-cm flowers, also from a highly inbred strain. The F1 have 18-cm flowers. F1 × F1 crosses yield F2 plants with flowers ranging from 6 to 30 cm in diameter, in approximately 4-cm intervals (6, 10, 14, 18, 22, 26, 30). An 18-cm F1 plant is crossed to a 6-cm plant. What is the probability of an offspring with one additive allele, if all genes that influence this trait are unlinked?a. 1/3b. 1/4c. 1/6d. 3/8e. 1/16

Answers

Answer:

d. 3/8

Explanation:

Due to technical problems, you will find the complete answer and explanation in the attached files

What is the difference between
atoms and molecules

Answers

Answer:

Atoms are single neutral particles. Molecules are neutral particles made of two or more atoms bonded together.

Explanation:

look at the picture also i dont know what this is so I just put biology ​

Answers

Answer:

millions of years

Explanation:

Takes a long time to form, so millions of years.

I DONT UNDERSTAND PLEASE HELP ME OUT

Answers

i guess metaphase? but i’m not sure since all of them are the phases of mitosis

Harry, a 42-year-old homeless gentleman visits the free-standing nursing clinic at the shelter. The nursing assistant wants to replace his socks and shoes. In the process of removing both, his great toe falls off of his right foot. How is this connected to diabetes? Explain the pathophysiology.

Answers

What is the meaning of pathophysiology

Diabetes can result in inadequate blood flow, nerve damage, and severe foot issues.  One method to help prevent it is by controlling your blood sugar.

What is Diabetes?

A collection of illnesses known as diabetes mellitus alter how the body requires blood sugar. The cells that comprise the tissues and muscles rely heavily on glucose as a source of energy. 

Each form of diabetes has a different primary etiology. Yet, diabetes can result in an excess of blood sugar regardless of the type you have. Serious health issues can result from an excess of sugar in the blood. Diabetes can result in inadequate blood flow, nerve damage, and severe foot issues. Diabetes that is not controlled can result in amputations, mainly of the legs, foot, or toes. One method to help prevent it is by controlling your blood sugar.

Therefore, diabetes can result in inadequate blood flow, nerve damage, and severe foot issues.

To know more about diabetes, here:

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Scientists follow seismic waves to locate the epicenter.
Please select the best answer from the choices provided
T
F

Answers

Answer:  This is true, scientists do follow seismic waves.

Answer:

True, or T.

is what it is

Describe how protists are helpful and harmful to humans and other organisms
( put this in a paragraph please)
Also describe how fungi are helpful and harmful to humans and other organisms. ( put this in a paragraph also please)

Answers

Answer:

Plant-like protists produce almost one-half of the oxygen on the planet through photosynthesis. Other protists decompose and recycle nutrients that humans need to live.  For example, medicines made from protists are used in treatment of high blood pressure, digestion problems, ulcers, and arthritis. Fungi are very important ecologically, because they are one of the most important decomposers in most ecosystems. They help to break down plant fibers such as dead leaves and wood and allow the nutrients to be released into the soil. Fungi are useful to humans because they have economic value.

Hope this helps

Explanation:

during photosynthesis producers convert carbon dioxide and other materials to

A. Lipids
B. Amino acids
C. Nuclei acids
D. Sugars

Answers

Answer:

d

Explanation:

During photosynthesis producers convert carbon dioxide and other materials to sugar. The correct option is D.

What are carbohydrates?

A carbohydrate is an organic compound comprised up of carbon, hydrogen, and oxygen atoms, usually in a 2:1 hydrogen-oxygen atom ratio.

Bread, beans, milk, popcorn, as well as a host of other both healthy along with bad foods contain carbohydrates.

The critical necessity of carbohydrates in plants as vital sources of energy, carbon skeletons for organic molecules, and storage components is well renowned. They are created during photosynthesis.

When photosynthesis is finished, it releases oxygen and creates molecules of carbohydrates, most frequently glucose.

In plants, carbohydrates serve as a source of energy. Their metabolism and growth are their two primary processes.

Thus, the correct option is D.

For more details regarding carbohydrates, visit:

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How are traits inherited by offsring?

Answers

answer:
a trait is a characteristic, such as color or size, that is inherited by an offspring from its parents. The genes that control a trait come in pairs, one gene from each parent. If a gene pair contains a dominant allele, then the offspring will show this dominant trait.

step by step:

Answer:

Traits are passed to offspring by the offspring parents.

Explanation:

the genes that control a trait come in pairs, one from each parent. If a gene pair contains a dominant allele (a variation of genes that will produce phenotype,) than the offspring gains that trait from the dominant parent.

Fred has four daughters. What is the probability that his fifth child will be a boy?
a. 100% b. 50% c. 25% d. 20%

Answers

This might be wrong but I think it’s 50%

Him having four other daughters shouldn’t play a roll in his fifth child gender. There’s a 50/50 chance he’ll have a boy or girl

Can any body help me with this no website

Answers

I think the answers A

The chemical subunits that make up Deoxyribonucleic Acid and that form the genetic alphabet are called

Answers

Answer: DNA

Explanation:

The chemical subunits that make up Deoxyribonucleic Acid and that form the genetic alphabet are called DNA

Some animals can replace lost parts by growing new ones.

True
False

Answers

True Imao, lizzards............

Answer is...

[tex]\boxed{True}[/tex]

Explanation: Some animals do grow parts, like Lizards grow missing limbs. When animals lose limbs or body parts, it may affect their abilities to do special things. Like if a animal loses its leg, it can't walk. Simply some animals can regenerate. Like lizards, sponges, spiders. They regenerate overtime, it can long, up to days.

Which gas has recently increased in the mesosphere, creating a rise in water vapor which has led to the formation of high-altitude clouds that are visible at night?

A) Ozone
B)Methane
C)Carbon Dioxide
D)Hydrogen

Answers

Answer:

I'm not 100% sure but I'm positive the answer was or is Methane, correct me if I'm wrong!

Methane levels in the mesosphere have lately risen, causing an increase in liquid water, that has resulted in the production of high-altitude storms visible at night.

So, option B) is correct.

Define Mesosphere.

The mesosphere is the third layer of the atmosphere, located directly above the stratospheric and under the thermosphere. Temperature falls as altitude climbs in the mesosphere.

Methane levels in the mesosphere have lately risen, causing an increase in liquid water, that has resulted in the production of high-altitude storms visible at night.

Methane is a chemical molecule that has the formula [tex]CH_{4}[/tex].

So, option B) is correct.

Find out more information about mesosphere here:

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real ans only fast plzz
no wrong ok​

Answers

Answer is a!!! Hope this helps

Explanation:

A.Impulse Is The Answer.

A mixture IS a pure substance
(True or false)

Answers

This is false,since it is mixed

Answer:

no

Explanation:

Matter can be broken down into two categories: pure substances and mixtures. Pure substances are further broken down into elements and compounds. ... A chemical substance is composed of one type of atom or molecule. A mixture is composed of different types of atoms or molecules that are not chemically bonded.

HURRRRRRRRYYYYYYY!!!!!

Which statement BEST describes the relationship between photosynthesis and cellular respiration?

A
Both processes release energy in the form of heat.

B
Both processes use energy to form molecules of glucose.

C
The products of one process are the reactants in the other process.

D
The products of one process are the same products in the other process.

Answers

Answer:

b

Explanation:

Lettuce, greenfly, ladybug, thrush, cat

Name the herbivore in the food chain.

Answers

Answer:

greenfly

Explanation:

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How did television coverage of "Bloody Sunday" and the public support that followed help the civil rights movement? O It convinced southern senators to vote in favor of the Civil Rights Act. O It resulted in new federal laws that banned the use of police brutality against protestors. O It gave President Johnson the support he needed to push for passage of the Voting Rights Act. O It convinced President Johnson that the civil rights movement would fail. A 150 Kg objects is lifted heights of 12 meters . What is the gravitational poteentain energy of the object. which of the following eras of texas history is represented by the images above? 0.04 as a fraction (out of 100) if the angle of elevation from the point on the ground to the top of the tree is 34 and the point is 25 feet from the base of the tree what is the height of the tree? The answer is 16.9 but I need help with part 2 if the tree grows an additional 10 feet, what is the new angle of the elevation from the point 25 feet from a he base of the tree to the top of the tree? A) 42.3 B) 47.1 C) 49.8 D) 54.6 An externality is defined as: the effect of an activity undertaken outside a building rather than inside a building. an effect of market activity that impacts the opposite side of the market from the side whose decision caused the effect. a side-effect of an activity that affects bystanders whose interests are not taken into account. the impact of an activity on buyers and sellers in the market where the activity takes place. list 20 facts about volleyball ( not my kind of sport so i don't really know ) Sarah canceled her cable package. It cost $89 a monthfor that price, she could subscribe to six streaming services, plus have an extra $5 left over each month!a. Write an equation that you can use to find out how much each streaming service costs, assuming they all cost an equal amount.b. How much does each streaming service cost? Is it or not pls I need help protocol for flushing a cooling water system at a nuclear reactor requires that a drain valve be opened while the fill pumps are active. the drain valve can empty the tank to thr cut-off in 10 minutes. the pump can fill the rank from the cut-off in 14 minutes. during the flushing process, how long will it take for the initially full tank to reach the cut-off level while following the protocol? HURRY PLEASEEEEE!!!Anna and her sister Bella are making baby blankets to sell at a boutique. Anna has already completed 5 blankets and can finish 7 more blankets per day. Bella has already completed 2 blankets and can finish 8 more blankets per day. At some point, they will have completed the same number of blankets. How long will that take? How many blankets will each woman have made? Which action was an attempt by southern state governments after the Civil War tolimit the rights of African Americans?1ratification of the 13th amendment2.implementation of the Black Codes3.establishment of the Freedmen's Bureau4.impeachment of President Andrew Johnson 2. cos 0a) sin 1 b)c) sin 90 d) tan 90B)cos 1 13. How does the protein p53 act as a negative regulator? Drag each sentence to the correct location on the table.i know the answer but this is a free chance to get brainliest to the correct personMatch each description to the correct genre.Gabby Costas new book is based onher troubled childhood.Harry wants to write a story aboutthe adventures of his favoritechildhood character, Winnie the Pooh.Anne Franks The Diary of A Young Girlrecounts Anne's fears, doubts, andstruggles during World War II.Tina wants to write a short story basedon the Grimm Brothers' fairytaleHansel and Gretel. many learner's perform well in grade 12 but are still not accepted into university. Explain two reasons for this can someone help me with this tooo ! how do you determine how many variables are part of the GCF on any factoring problem? What is the difference between the digestive system and the immune system ?PLEASE HELP!!! Which equation represent the line that passes through the points (-4,3) and (2,-12)