PLEASE ANSWER QUICKLY

Which characteristic is shared by all mollusks and echinoderms?

live only in salt water

lack a backbone

use tube feet to move

have an open circulatory system

Answers

Answer 1

Answer:

have an open circlitory system

Explanation:

Answer 2

Answer:

D) have an open circulatory system

Explanation:

Hope this helps!


Related Questions

Your lab partner is attempting to explain the model above in her lab report. She asks you to proofread her explanation. Examine each of the statements. What information is incorrect. Choose all that apply

Answers

Answer:

B and C on usatestprep

Explanation:

B. During translation, the genetic code in mRNA is read and used to put nucleotides in place to make a protein.

C. DNA contains all of the instructions an organism needs to live...

Answer:  DNA contains all of the instructions an organism needs to live. DNA must travel to the ribosome where its code is read to make proteins.

During translation, the genetic code in mRNA is read and used to put nucleotides in place to make a protein.

Explanation:

Plants carry out many physiological processes. Each process requires specialized structures within the plant. These structures are involved in various processes helping the plant to function and keep the plant alive. In which process is the flower most involved?

Answers

Answer:

Photosynthesis is the process...

Explanation:

lt is because Photosynthesis is the process that enables plants to make their own food .

What causes lactic acid to build up in muscle cells? A. The cells receive excess oxygen than the body takes in. B. Cells use oxygen move quickly than the bloodstream can supply it. C. The cells do not receive enough glucose from the bloodstream. D. The cells are resting and not active.

Answers

Answer:

B. Cells use oxygen move quickly than the bloodstream can supply it

PLEASE HELP ME, it's URGENT!! TO GET A BRAINLIEST FROM ME, PLEASE EXPLAIN WHY YOU CHOSE THAT OPTION

The breaking down of starch into its component sugars would be an example of
A. Catabolism
B. Cell Division
C. Protein Synthesis

A protein being built from individual amino acids would be an example of
A. Anabolism
B. Catabolism
C. Cell Division

Answers

Answer:

The breaking down of starch into its component sugars would be an example of  

✔ catabolism  

A protein being built from individual amino acids would be an example of  

✔ anabolism  

A molecule of sugar being broken apart to release energy would be an example of  

✔ catabolism

Explanation:

ed2021

The breaking down of starch into its component sugars would be an example of  Catabolism. A protein being built from individual amino acids would be an example of Anabolism.

What is metabolism?

Metabolism refers to the chemical processes that occur within a living organism in order to maintain life. These processes include the conversion of food into energy and the use of that energy to power the organism's growth, reproduction, and other functions.

Metabolism can be further divided into two main categories: catabolism and anabolism.

Catabolism is the process by which the body breaks down molecules to release energy. It includes the breakdown of complex molecules such as carbohydrates, fats, and proteins into simpler molecules that can be used by the body's cells for energy. This process produces waste products such as carbon dioxide and water which are eliminated from the body.

Anabolism is the process by which the body uses energy to build molecules. It includes the synthesis of complex molecules such as proteins, nucleic acids, and polysaccharides from simpler molecules. Anabolic reactions consume energy, rather than release it, and they require precursors and enzymes.

Learn more about metabolism, here:

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Are dinosaur fossil bones often found in the order they appeared on the animal? Explain.

Answers

Answer:

no

Explanation:.............

answer all 3 please

Answers

Answer: 1. Earthquake

2. Lava

3. Divergent Boundary

Explanation:

We’re can the nuclear pore be found

Answers

Answer:

The nuclear pore is a protein-lined channel in the nuclear envelope

Explanation:

please let me know, thank you!

Answers

Answer:

A

Explanation:

Answer:

B

Explanation:

HEP PLSSSSSSSSS ASAP

Answers

Answer:

a- brown eyes

b- blue eyes

c- brown hair

d- widows peak

e-short arms

f- can roll tongue,  long arms

g- brown eyes, brown hair

h- widows peak, short arms

i- brown eyes, can roll tongue

j- brown eyes, brown hair, no widows peak, long arms, can't roll tongue

Explanation:

So the capital letter is the dominant trait, and the lowercase letter is recessive. The capital dominant trait will always overpower the lowercase recessive trait. So the only way the recessive trait can be seen is if there are two together. So... if R is white fur and r is brown fur...

RR would show the dominant trait of white fur

Rr would show the dominant trait of white fur

rr would show the recessive trait of brown fur

Hope this helps!! Please vote Brainliest!

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USING THE PICTURE, FILL IN THE BLANK WITH EACH LETTER.

___ 1. Snow Precipitation
___ 2. Rain Precipitation
___ 3. Evapotranspiration
___ 4. Stream Flow/ Surface Runoff
___ 5. Sublimation
___ 6. Infiltration
___ 7. Groundwater Flow
___ 8. Groundwater Storage
___ 9. Fresh Water Pond
___ 10. Ocean
___ 11. Evaporation

Answers

Answer:

This is in-order:

D

E

B

F

C

I

G

H

J

K

A

What kind of intermediate inheritance is being exhibited by the chickens???

Answers

I Dont know srry mate next time maybe

Which of the following is not an example of a unique adaptation that suits an organism to a particular environment?

Answers

Answer:

Could you possibly provide the list in which I can choose from to state the answer?

The cacti in this environment survive by spreading out and growing apart from one another. Why do the cacti grow this way?

Answers

Answer:

b b b b b b b b

Explanation:

Answer:

B

Explanation:

please help..........​

Answers

It’s the last one okay

What is the relationship between ATP and mitochondria?

Answers

Answer:

mitochondria produces energy in the form of ATP molecules

Come up with five ethical guidelines for research. Write statements that reflect your own views of
what is right and wrong. If you really love animals, an example of one guideline might be "No
animals may be used in research of any kind." However, when coming up with these guidelines, be
thoughtful about what they really mean. Think of the information you read about earlier. Try to
phrase your guidelines in a way that would allow research that you think would be beneficial to
still be done. You may find that certain circumstances may cause you to rethink your own ethics!

Answers

Answer:

No

Explanation:

Sam is riding his bicycle, and allows his little
brother Mike to ride on his rear wheel pegs.
This is an example of...
A. Mutualism +
B. Commensalism
C. Consumerism

Answers

Id say commensalism because mike will be benefitting from riding the pegs, but sam will be doing more work

An analysis of a cell indicated a high lipid content in the membranes, a high protein content in the vesicles being mobilized and
transported throughout the cell, and a high carbohydrate content within the cytoplasm. The researcher performing the analysis
concludes that the compounds must serve different roles in the cell. However, a chemical analysis of these three compound types
is also performed. Which comparison BEST illustrates the similarity and difference in the elemental makeup of these molecules?
A)
B)
Carbohydrates and proteins both contain carbon, hydrogen, and oxygen
atoms, while the lipids contain sulfur in addition to those three elements.
Carbohydrates and lipids both contain carbon, hydrogen, and oxygen
atoms, while the proteins contain nitrogen in addition to those three
elements
Carbohydrates and proteins both contain carbon, hydrogen, and oxygen
atoms, while the lipids contain nitrogen in addition to those three
elements
Carbohydrates and lipids both contain carbon, hydrogen, and oxygen
atoms, while the proteins contain phosphorus in addition to those three
elements
D)

Answers

Answer: Carbohydrates and lipids both contain carbon, hydrogen, and oxygen

atoms, while the proteins contain nitrogen in addition to those three

elements

Explanation:

What makes the crust move?
A. Motion in the inner core
O B. Motion in the mantle
O C. Motion in the outer core
O D. Motion in the moon

Answers

C. Motion in the outer core

help

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

Answers

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Describe at least 2 ways HeLa cells are going to be used in the future. Either a study
currently underway or in development.

Answers

Answer:The enduring use of HeLa cells in biomedical research is represented below through a timeline of events and scientific publications that describe research using HeLa cells.

Explanation:


Which particles have the same mass?

A. electron and neutron
B. all three particles
C. proton and neutron
D. proton and electron

Answers

Protons and Neutrons have roughly the same mass. With that in mind, the answer must be c. I hope I managed to help :)

How does artificial selection differ from natural selection? Choose all that apply.
O During artificial selection, the mating pairs are selected by humans, not the organisms.
O The outcomes of artificial selection are predictable.
O Artificial selection requires variety in a population.
O Artificial selection does not help a population adapt to its environment.

Answers

The last option is correct. “Artificial selection does not help a population adapt to its environment.”

Answer:

All answers should be selected.

Explanation:

Artificial selection means humans select the mating pairs which makes the outcomes predictable. Variety is required because it is how humans can "customize" the traits of an organism. However, it does not help a population adapt to its environment because these traits are made for human satisfaction, not the survival of an organism.

What is abiotic and biotic? Write examples of each.

Answers

The biotic factors are the living components of an ecosystem and are sorted into three groups: producers or autotrophs, consumers or heterotrophs, and decomposers or detritivores.Examples of biotic factors include any animals, plants, trees, grass, bacteria, moss, or molds that you might find in an ecosystem.

Abiotic factors come in all types and can vary among different ecosystems. For example, abiotic factors found in aquatic systems may be things like water depth, pH, sunlight, turbidity (amount of water cloudiness), salinity (salt concentration), available nutrients (nitrogen, phosphorous, etc.), and dissolved oxygen (amount of oxygen dissolved in the water). Abiotic variables found in terrestrial ecosystems can include things like rain, wind, temperature, altitude, soil, pollution, nutrients, pH, types of soil, and sunlight

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How are a tundra and a desert different?

A) A tundra has a lot of precipitation and a desert has little.
B) A tundra has few trees and plants and deserts have many.
C) A tundra has soil that is often sandy and a desert has grass.
D) A tundra is dry and cold and a desert is dry and hot.

Answers

Answer:

D

Explanation:

i think that's the answer

Answer:d

Explanation: tundra is an extremely cold biome consisting of snow-covered lands while a desert is an extremely dry and hot biome consisting of sandy lands

The immune response consists of different components playing their role for a common goal: to rid the body of a pathogen. Create an analogy that helps explain the roles of the responses of the immune system and describe the relationship between the responses.

Answers

Answer:

In a primary immune response, naive B cells are stimulated by antigen, become activated, and differentiate into antibody-secreting cells that produce antibodies specific for the eliciting antigen.

A secondary immune response is elicited when the same antigen stimulates memory B cells, leading to the production of greater quantities of specific antibodies that are produced in the primary response

Answer:

In a primary immune response, naïve B cells are stimulated by antigen, become activated, and differentiate into antibody-secreting cells that produce antibodies specific for the eliciting antigen.

A secondary immune response is elicited when the same antigen stimulates memory B cells, leading to the production of greater quantities of specific antibodies that are produced in the primary response.

  

There is only one copy machine at your office. You have to make 1000 copies of an expense report. After you begin copying, two other employees show up in the copy room. Each has to make only 10 copies each. What is the proper etiquette in this situation?
a.
Finish making your copies and then let your coworkers make theirs.
b.
Tell your boss that you need another copy machine
c.
Let your coworkers do their copies and then finish your own.
d.
Let one of your coworkers make their copies before finishing your own.

Answers

The answers to the Quiz.

1. D. Make the decision

2. C. Respect

3. B. It challenges their own ideas

4. C. Let your coworkers do their copies and then finish your own.

5. C. Stereotypes

6. B. Respected Professionals

7. C. Respect

8. C. Reject it

9. A. Solution

10. C. Ethnicity

Edge 2021

What makes dogs more intelligent than other closely related species

Answers

Answer:

dogs can be trained and remember their training for a long time

Explanation:

Someone help me define these pls

Answers

Faunal Succession—The principle of faunal succession, also known as the law of faunal succession, is based on the observation that sedimentary rock strata contain fossilized flora and fauna, and that these fossils succeed each other vertically in a specific, reliable order that can be identified over wide horizontal distances.

Original Horizontality—The Principle of Original Horizontality states that layers of sediment are originally deposited horizontally under the action of gravity. It is a relative dating technique. The principle is important to the analysis of folded and tilted strata.

lateral continuity—The principle of lateral continuity states that layers of sediment initially extend laterally in all directions; in other words, they are laterally continuous. As a result, rocks that are otherwise similar, but are now separated by a valley or other erosional feature, can be assumed to be originally continuous.

Superposition—Superposition is the ability of a quantum system to be in multiple states at the same time until it is measured.

what are some non examples of negative feedback?​

Answers

Answer: (EXAMPLES). Human body temperature - The hypothalamus of a human reacts to temperature fluctuations and responds accordingly. If the temperature drops, the body shivers to bring up the temperature and if it is too warm, the body will sweat to cool down due to evaporation.

Human blood pressure - When blood pressure increases, signals are sent to the brain from the blood vessels. Signals are sent to the heart from the brain, and heart rate slows down, thus helping blood pressure to return to normal.

Human metabolism - When a human is hungry, metabolism slows down to conserve energy and allows the human to continue living with less food.

Regulation of blood sugar in humans - When blood sugar rises, insulin sends a signal to the liver, muscles, and other cells to store the excess glucose. Some is stored as body fat, and other glucose is stored as glycogen in the liver and muscles.

Production of human red blood cells (erythropoiesis) - A decrease in oxygen is detected by the kidneys and they secrete erythropoietin. This hormone stimulates the production of red blood cells.

Explanation: Since we all know, A negative feedback loop is a reaction that causes a decrease in function. It occurs in response to some kind of stimulus. Often, it causes the output of a system to be lessened; so, the feedback tends to stabilize the system. This can be referred to as homeostasis, as in biology, or equilibrium, as in mechanics.

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