PLLZZ I NEED HELP DUE SOON!!!!
What type of molecule forms the antibodies found in the human immune system?

Answers

Answer 1

Answer:

An antibody

Explanation:


Related Questions

Which of the following words describe most of the trillions of cells in your body?

A. Specialized

B. Undifferentiated

C. Pluripotent

D. Embryonic

Answers

Answer:

A. specialized

Explanation:

A cell is the basic unit of life. However, there are many different types of specialized cells. This means they are modified by size, shape, or function according to their purpose. Specialized cells make up tissues, tissues make up organs, and organs make up the systems that work together to make up our bodies.

Describe each of the following:
Sickle Cell Anemia
Diabetes
Acne
HELP!!

Answers

Answer:

1. Sickle cell anemia is an inherited red blood cell disorder in which there aren't enough healthy red blood cells to carry oxygen throughout your body. Normally, the flexible, round red blood cells move easily through blood vessels. In sickle cell anemia, the red blood are shaped like sickles or crescent moons.

Treatments: Blood transfusion

Symptoms: Pain

2. Diabetes is the condition in which the body does not properly process food for use as energy. Most of the food we eat is turned into glucose, or sugar, for our bodies to use for energy. The pancreas, an organ that lies near the stomach, makes a hormone called insulin to help glucose get into the cells of our bodies.

3. Acne is a skin condition that occurs when your hair follicles become plugged with oil and dead skin cells. It causes whiteheads, blackheads or pimples. Acne is most common among teenagers, though it affects people of all ages.

what makes the red blood cell special, why is it special, how is it different than other cells, what is its primary function. (Minimum 5 sentences)

Answers

Red blood cells carry oxygen from our lungs to the rest of our bodies. It carries a special protein called haemoglobin, which helps carry oxygen from the lungs to the rest of the body, it has no nucleus and can easily change shape

I hope that helped :(

What is the main negative effect of slash and burn deforestation in rain forests?


The erosion of thin, fragile tropical topsoils

Heavy smoke in the air causes respiration problems for humans

A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂

Bare land warms absorbs heat and warms the surrounding air faster than forested areas.

Answers

Answer:

A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂

Answer:

A rapid increase of carbon dioxide, faster than photosynthesis can remove the CO₂

Explanation:

i had this on a quiz and it was right =]

What do the three nucleotide bases on an mRNA molecule (called a codon) provide a code for?
six amino acids
two amino acids
three amino acids
one amino acid

Answers

Answer:

c. three amino acids

Explanation:

i know this from my exam in fifth grade. your welcome ;)

An mRNA is made up of the 4 nitrogenous bases A,U,C and G where the thymine is replaced by U for uracil. An mRNA molecule is made up by a codon of three amino acids.

What is amino acid ?

An amino acid is made up by the acidic as well as basic group where the acidic group is carboxylic acid and the basic group is amine group.

A codon is made up by the three amino acids where the three of the amino acids together called as codon makes up a nucleotide together and the molecule it codes for makes a long chain of proteins together making up the structure of the desired machinery as per signals and the mechanisms that are assigned to it.

A codon makes up the together the amino acid and then the chain and together it makes up the protein where the long polypeptide makes up the structure that is tertiary in nature.

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Another name for a fertilized egg is a

Answers

Answer: The fertilized ovum, now called a zygote, is ready for the first mitotic cell division.

up to about three thousand million years ago there was no oxygen in Earth's atmosphere today about one-fifth of the atmosphere is oxygen gas. suggest what caused this change???


pls help​

Answers

Answer:

Oxygen makes up about one-fifth the volume of Earth'­s atmosphere today, and is a central element of life as we know it.

But that wasn'­t always the case. Oxygen, although always present in compounds in Earth'­s interior, atmosphere, and oceans, did not begin to accumulate in the atmosphere as oxygen gas (O2) until well into the planet'­s history. What the atmosphere was like prior to oxygen'­s rise is a puzzle that Earth scientists have only begun to piece together.

Earth coalesced a little more than 4.5 billion years ago from bits of cosmic debris. Liquid oceans existed on the planet almost from the beginning, although in all likelihood they were repeatedly vaporized by the massive meteorites that regularly clobbered the planet during its first 700 million years of existence. Things had settled down by 3.8 billion years ago, when the first rocks that formed under water appear in the geologic record. (They exist in what is now southwest Greenland.)

If Earth had water, it must have had an atmosphere, and if it had an atmosphere, it must have had a climate. What was Earth'­s early atmosphere made of? Nitrogen (N2), certainly. Nitrogen makes up the bulk of today'­s atmosphere and likely has been around since the beginning. Water vapor (H2O), probably from volcanic emissions. Carbon dioxide (CO2), also emitted by volcanic eruptions, which were plentiful at that time. And methane (CH4), generated inside the Earth and possibly also by methane-producing microbes that thrived on and in the seafloor, as they do today.

Carbon dioxide, water vapor, and methane played an important role in Earth'­s subsequent development. Four billion years ago, the Sun was 30 percent dimmer, and therefore colder, than it is today. Under such conditions, Earth'­s water should have been frozen, yet clearly it wasn'­t. The water vapor, carbon dioxide, and methane acted as greenhouse gases, trapping heat and insulating the early Earth during a critical period in its development.

Of oxygen, meanwhile, the early atmosphere held barely a trace. What did exist likely formed when solar radiation split airborne molecules of water (H2O) into hydrogen (H2) and oxygen (O2). Hydrogen, a lightweight gas, would have risen above the atmosphere and slowly been lost to space. The heavier oxygen gas, left behind, would have quickly reacted with atmospheric gases such as methane or with minerals on Earth'­s surface and been drawn out of the atmosphere and back into the crust and mantle. Oxygen could only begin to accumulate in the atmosphere if it was being produced faster than it was being removed'—in other words, if something else was also producing it.

That something was life. Although the fossil evidence is sketchy, methane-producing microbes may have inhabited Earth as long ago as 3.8 billion years. By 2.7 billion years ago, a new kind of life had established itself: photosynthetic microbes called cyanobacteria, which were capable of using the Sun'­s energy to convert carbon dioxide and water into food with oxygen gas as a waste product. They lived in shallow seas, protected from full exposure to the Sun'­s harmful radiation. (To learn more about these organisms and the fossil evidence for them, watch the accompanying video "Early Fossil Life.")

Please help me
Where in a cell does most ATP production take place? Question 6 options:

A. nucleus

B. mitochondria

C. lysosomes

D. cell wall

Answers

Answer:

The answer is B mitochondria

Explanation:

Most of the ATP in cells is produced by the enzyme ATP synthase, which converts ADP and phosphate to ATP. ATP synthase is located in the membrane of cellular structures called mitochondria.

Which substance is a product of glycolysis?

A. Lactate
B. Oxygen
C. Pyruvate
D. Water

Answers

B oxygen is the answer
Glycolysis is about breaking sugar
It will produce two pyruvate two nadh two atp
So C

True or False, there are genes in our bodies that stop cells dividing too
fast?

Answers

Answer:

true

Explanation:

true true true true true

BRANLIEST PLSSSS HELPPPP

Answers

Answer:

I would agree D because energy cannot be created or destroyed in a chemical reaction :)

Explanation:

How long did it take to purify Interferon? *

7 years
17 years
27 years
37 years

Answers

i think 17 years is right but i’m not sure
it takes about 17 years for it to be purified.

Judy took some dead grass and soaked it in water for a few days. Then she looked at it under a microscope. She saw some tiny things moving around under the microscope. How could Judy tell whether what she was looking at were living things? Check all of the following that could be used to decide whether the things Judy saw were living. (

Answers

Answer:

Living Cells created from the dead grass

Explanation:

Because the water has nutrients.

Which of the following cells have a nucleus?

- Animal cell
- Bacteria cell
- Plant cell

Which of the following cells have a cell wall?

-animal cell
- bacteria cell
- plant cell

Answers

Answer:

Animal and Plant cells both have a nucleus, and only the Plant cell has a cell wall.

Explanation:

Hope this is correct. If it is, please give me Brainliest.

Answer:

An animal cell and plant cell both have a nucleus. Plant cells have a cell wall because the cell wall helps protect and support the plant cells.

Select all the correct answers,
Based on these images, what can you conclude about the organisms?

20 points!

_____________________

A. They’re a mixture of vertebrates and invertebrates
_____________________

B. They have similarities in their embryonic stages that don’t exist in their adult forms
_____________________


C. They all undergo metamorphosis
_____________________


D. They all contain a backbone, or spinal column
_____________________

E. They’re the same species of organism
_____________________

Answers

Answer:

D they all contain a back bone

Explanation:

because they are vertebrates

Answer:

D.) correct on plato

Explanation:

The law of conservation of mass states that:
O Mass can be created but energy can only be transferred
O Energy can be created but mass can only be transferred
Matter and energy cannot be created nor destroyed, only transferred
Matter and energy can be created and destroyed, not transferred

Answers

Answer:yesThe law of conservation of mass states that:

O Mass can be created but energy can only be transferred

O Energy can be created but mass can only be transferred

Matter and energy cannot be created nor destroyed, only transferred

Matter and energy can be created and destroyed, not transferred

Explanation:

Are there any mammalian cells that would be a good source for dividing cells?

Answers

Answer:

yes

Explanation:

15. List 3 characteristics of a tropical rainforest:

Answers

Answer: 1. very high annual rainfall

              2. high average temperatures

              3. high levels of biodiversity

Explanation:

Answer:

Dense, lush, exiotic

Explanation:

tropical forests are very thick with vegetation, and there's lots of it, meaning the forest is lush, or healthy. Exotic meaning it is full of interesting animals and plants found no where else.

hope this helps!

-lily :)

BRANLIEST PLS HURRYy

Answers

Answer:

Illustration B

Change TCA-GAT from DNA into mRNA

Answers

Answer:

AGU-CUA

Explanation:

An mRNA sequence is made using a DNA sequence as a template. The sequence is dictated by complementary base pairing.

DNA uses the bases A, T, C and G. A is complementary to T and G is complementary to C.

RNA uses the bases A, U, C and G. A is complementary to U and G is complementary to C.

When transcribing DNA to RNA:

C is paired with GG is paired with CA is paired with UT is paired with A

Therefore, TCA-GAT  is transcribed to AGU-CUA

Which of the following is not a possible sign of a drug addiction?

A.
engaging in risky behavior to obtain drugs
B.
allowing drug use to interfere with basic life functions
C.
hanging out with people who use drugs often
D.
using drugs to cope with personal problems

Answers

Answer: D

Explanation:

I believe its D because people with PTSD take pills which are considered as a type of drug pills to get over their anxiety and can calm their nerves. They aren't addicted to this type of pill, they just take it because they need it, not cuz they want it.

The following is not a possible sign of a drug addiction D. using drugs to cope with personal problems. Thus, option "D" is correct.

What are the different stages of drugs?

The first stage of drug use is the stage in which the individual starts and continues to use the substance for various reasons. In the tolerance stage, the brain has made significant changes in response to the substance and can no longer produce the same mental or physical effects. The next stages of dependence and addiction are characterized with cravings for the substance, inability to maintain daily responsibilities, spending extra time seeking out the substance and using.

Thus, option "D" is correct.

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Which muscle is the most capable to provide the most strength for a frog to jump?
a)lower forelimb
b)upper forelimb
c)calf muscle
d)thigh muscle

Answers

Answer:

D. thigh muscle

Explanation:

Seafood Watch recommends which seafood _______.
a. to buy or avoid
b. to catch and sell
c. to harvest sustainably
d. is safe to eat

Answers

Answer:

a

Explanation:

to buy or avoid

Seafood Watch recommends which seafood to buy or avoid. Thus, option A is correct.

What is seafood?

Seafood is food obtained from the sea. Unsustainable fishing methods, such as dragging and dynamite fishing, entrap or kill various species that are not necessarily targeted by the fishing industry. By identifying varieties of seafood that have been caught sustainably, Seafood Watch promotes them over those that have not.

The theory is that since only fisherman who employ sustainable practices are financially rewarded, they will outperform rivals. Based on rigorous scientific standards for environmental sustainability, our Seafood Watch program assigns grades to seafood collected or raised all around the world.

Our suggestions can be used by customers and business owners to locate seafood that has been farmed sustainably. Numerous species are included in the exhaustive list, along with information about where in the water they were caught—from the wild or from farms—and how they were harvested.

Therefore, Seafood Watch recommends which seafood to buy or avoid. Thus, option A is correct.

Learn more about species on:

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what are energy-giving nutrients

Answers

Answer:

The nutrients that provide energy are commonly referred to as macronutrients (carbohydrates, lipids, and proteins). Carbohydrates and proteins provide a similar amount of energy per gram of food.

Explanation:


Environmental influences begin at birth and continue throughout life.
Please select the best answer from the choices provided
True or False.

Answers

i believe the correct choice is true

Answer:

On ed2020 the answer is false.

Explanation:

what body systems ate most pikely involved in sensing and responding to a sharp object

Answers

Answer:

The nervous system, the integumentary system, the muscular system (and the skeletal system) are all involved in responding to a sharp object.

Explanation:

A silk fiber is made from?

Answers

Answer:

The protein fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons. The best-known silk is obtained from the cocoons of the larvae of the mulberry silkworm Bombyx mori reared in captivity (sericulture).

Explanation:

Hope this helps :D ( I just copied and pasted)

Answer:

Fiber of silk is composed mainly of fibroin and is produced by certain insect larvae to form cocoons

Explanation:

how would you describe the motion of a transverse wave

Answers

Answer:

Transverse wave, motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance. ... Surface ripples on water, seismic S (secondary) waves, and electromagnetic (e.g., radio and light) waves are examples of transverse waves.

Explanation:

hope it helps you.

Which are examples of harmful mutations? Check all that apply.

Answers

Answer:

Harmful Mutations A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A... Cancer is a disease in which cells grow out of control and form abnormal masses of cells.Explanation:

Answer:

Harmful Mutations A genetic disorder is a disease caused by a mutation in one or a few genes. A human example is cystic fibrosis. A... Cancer is a disease in which cells grow out of control and form abnormal masses of cells.Explanation:

Explanation:

Please help me ASAP real quick n easy

Answers

Answer:

Carbon monoxide gas.

Explanation:

The others are direct sources of groundwater pollution as the go directly on the ground. Hope this helps!

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Tim would like to reference a quick visual to determine which supplies his clinic spentthe most money on during the month of January. Which of the following tools should Timuse?A. Line graphB. Pie chartC. Anatomical chartD. Bar graph 2. How does the Cash & Carry Actallow the US to claim it was neutraduring this stage of WW2? The French and Indian War wasfought between what two colonialpowers?OUS & FranceOUS & BritainO Britain & SpainO Britain & France BIDEN WON incase some of u didn't know lol 0.5x = 3What is the value of x? Common Stock Dividends Paid $29,554 Cost of Goods sold $133,608 Depletion Expense $21,418 Preferred Stock Dividends Paid $16,172 Sales $322,000 Calculate Gormet's net income. What is the volume of a sphere with a diameter of 7.9 ft, rounded to thenearest tenth of a cubic foot? 3n = 8 + 4nwith work shown Why would the author include this event in the biography? A. It describes the beginning of Kahlo's relationship with Diego Riverab. It describes Frida Kahlo's feelings about her artwork Environmental influences begin at birth and continue throughout life.Please select the best answer from the choices providedTrue or False. a dot doubles a notes valuefalse true A trader bought 1000 oranges for $500. Eightyof them were bad. She sold the remainder inpackets of four at $3.50 per packet. Calculatei. the total amount she received for theoranges soldii. the percentage profit on the amount shepaid for the oranges. What is the answer to this be-1 x 1-1 x 1 A precipitate is formed when the two solutions, barium nitrate, Ba(NO3)2, and phosphoric acid, H3PO4, aremixed. Identify the correct products for this reaction.A)BaHa & NPO4B)BazN2 & HNO3Baz(PO4)2 & NO2D)Baz(PO4)2 & HNO3 Why was the Neutral Ground Agreement established? Write an equation in function notation for the relation shown in the picture below. Select the correct answer from each drop-down menu.This picture of Earths Moon was taken by Apollo 17.The circled feature of the Moon is a _____ . It could have been created by ____.Choices for box one are: crater, mountain, Rift Valley, or volcano Choices for box two are: atmospheric changes, a eruption of magma as lava, and impact of a asteroid or comet, or tectonic energy. This is the photo given in question. AcellusDecide if the following biconditionalstatement is true or false:An angle is a right angle if and only ifthe angle measures 90 degrees.TrueFalse The graph shows the results of an investigation into the effect of distance from a light source on the rate of photosynthesis. Based on the data represented in the graph, the rate of photosynthesis_______1______ as the level of available _____2_______ increases. The greatest change in the rate of photosynthesis occurs when the light level is __________3__________. Which table contains the numbers and terms that correctly complete the statements? Exerercise 2. Change these sentences from active to passive voice. Children leave all sorts of things in school buses