What is the body's first line of defense against infection by foreign organisms? antibodies lymph nodes white blood cells the skin

Answers

Answer 1

Answer:

White blood cells

Answer 2

Answer:not white blood cells

Explanation:


Related Questions

Soil definition in my own words

Answers

Answer:

A mixture of rock fragments and organic material that can support the growth of plants

Question 11 (1 point)
Saved
The simple one-celled organism seen here moves by streaming its cytoplasm into “false feet “ or pseudopods. It can easily change shape to move and engulf its food. What is the name of this animal-like protists?



Question 11 options:

amoeba


paramecium


euglenoid


Diatoms

Question 12 (1 point)
Saved
Both the euglena and paramecium seen here have___?



Question 12 options:

chlorophyll and are producers


projections that help them move


specialized cells to detect light.


a macronucleus and a micronucleus.

Question 13 (1 point)
We use yeast, seen below, when we make bread. Some warm water and a little sugar and yeast are ready to divide through budding. Each yeast cell is identical to its parent cell. This is similar to regeneration in protists. This is a form of __________ reproduction.



Question 13 options:

abiotic


asexual


genetic


sexual

Question 14 (1 point)
Lichens, like the one shown in the picture below, are usually combinations of algae and fungi that have a beneficial “mutualisic” relationship know as _____?



Question 14 options:

saprophytic


parasitic


symbiotic


autotrophic

Question 15 (1 point)
Fungi can be beneficial or destructive. One type of fungi, corn smut, attack grain plants like corn. What would likely happen to these crops when they are attacked by smut?



Question 15 options:

The crop yield is increased, because the fungi is symbiotic.


The plants stop reproducing


Results in huge crop loss, because the fungi is parasitic.

Question 16 (1 point)
Which letter from the fungus diagram represents the hyphae?



Question 16 options:

Point A


Point B


Point C


Point D

Question 17 (1 point)
Jimmy and Joanna were walking in their backyard and noticed a mushroom growing on the outside of a dead tree. Jimmy claimed that the mushroom was a plant, but Joanna said that it was not a plant, but a fungus.
In this case, what evidence BEST supports Joanna's claim?



Question 17 options:

The mushroom was a producer.




The mushroom was a autotroph.


The mushroom was a parasite.


The mushroom was a heterotroph.



Question 18 (1 point)
This is a unicellular protist called euglena. It lives in the water and swims around using the long flagella you see on one end. What do you, a complex multicellular human, have in common with the euglena?



Question 18 options:

They both can move.




Our cells are exactly the same.


Human cells move around using flagella.


The cells of multi cellular organisms must be in water also.

Question 19 (1 point)
A student performs an experiment to test the growth of bread mold. The student places four identical slices of white bread in individual plastic zip bags. Two of the slices are moistened with one pump of a spray bottle. The table describes the experiment and results.

What conclusion can be drawn from the experiment?



Question 19 options:

High moisture and low temperature encourage mold to grow.


Low moisture and high temperature encourage mold to grow.


Both low moisture and low temperature encourage mold to grow.


Both high moisture and high temperature encourage mold to grow

Question 20 (1 point)
How does the euglena differ from the paramecium?



Question 20 options:

Euglena are photosynthetic.


Paramecia use flagella to move.


Paramecia have an "eye spot" to detect light.


Euglena have both a macronucleus and a micronucleus

Question 21 (1 point)
Which organism is likely to live on the stump of a dead tree in a cool, moist, shady forest?

Question 21 options:

Diatoms


Euglena


Mushrooms


Paramecium

Question 22 (1 point)
Compare this fungus with the protist shown in the images below. How do they differ in the way they obtain nutrients?



Question 22 options:

Both organisms are autotrophs. The mushroom uses hyphae to get its nutrients and the amoeba uses the pseudopod instead.




Both organisms are consumers. The amoeba engulfs its food with it;s pseudopod, while the fungus absorbs food from the dead leaves using its hyphae.




The amoeba is a producer and obtains nutrients through photosynthesis; the fungus is a consumer and is decomposing leaf litter in the forest.



Question 23 (1 point)
Euglena, amoeba, paramecium: all one-celled protists. How does the amoeba move through its environment?

Question 23 options:

cilia


flagellum


pseudopod


hyphae

Answers

Explanation:

The answer is the amoeba. because amoeba relies on hiding by mimicking exceptible cells in a plant..

PLEASE HELP!!! THERE MAY BE MORE THAN ONE ANSWER!! please zoom in to read the question better!! thank you!!!​

Answers

I think it is the 1st & last answer. When you get a job, or most jobs, they require to to work cooperatively. 2 heads are better than one in trying to find a solution to a problem. Some people are better suited to have jobs that required not as much teamwork, but you have to get the job first.

Cellular respiration involves all of the following EXCEPT
A) the breaking down of molecules
B) breathing in and out
C) the release of carbon dioxide
D) the release of energy
E) the synthesis of ATP

Answers

Answer:

B is correct

Explanation:

My teacher said so.

i'm pretty sure

Cellular respiration DOES NOT involve breathing in and out (Option B).

Cellular respiration is a metabolic process that breaks down food molecules such as glucose to synthesize ATP.

Cellular respiration is an aerobic process (i.e., a process that requires oxygen) in order to produce ATP.

Cellular respiration involves many metabolic reactions which can be divided into three phases: glycolysisthe citric acid (also known as Krebs cycle)electron transport chain.

The metabolic reactions that occur during cell respiration release energy in the form of heat.

Cellular respiration releases carbon dioxide (CO2) into the atmosphere.

The process of breathing in and out is a gas exchange process, which is essential to life. Breathing in and out is different from the process of cellular respiration.

In conclusion, cellular respiration DOES NOT involve breathing in and out (Option B is correct).

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Plzzzzz help A teacher looks at his students test to see which topics his students are still struggling with. What is this a Observational Study or Survey or Experiment?

Answers

Answer:

observational study

Explanation:

Answer:

hello

the answer is observational study

Please answer these questions as soon as possible.


5. What is an element?


6. What happens when neutral objects interact with charged objects?


7. Do positive and negative objects always move toward each other?


8. Will positive and negative objects repel each other?


9. Will there be an interation between the two?


10. Do light weight objects seem to be attracted to charged objects?


11. How does an objects charge affect it's interactions with neutral objects?

Answers

I know an element, an element is a part or aspect of something abstract

A general (non specific) way to describe something such as color, shape, and hight

Answers

Answer:

An unconformity happens when rocks do not follow normal geologic rules.

A geologic gap happens when rock is eroded before the sediment is deposited.

Explanation:

1 point
Read the question and select the correct answer.
1
The diagram shows some cells.
cilia
LUNACO
cytoplasm
nucleus
Where are these cells found?
A alimentary canal
B blood
C bronchus
D plant roots
Ο Α
OB
Ос
OD
Moy
Page 3 of 8

Answers

Explanation:

A= alimentary canal have all of this cells

Involuntary muscle includes _________.

A) skeletal muscle only
B) smooth muscle only
C) smooth muscle and cardiac muscle only
D) smooth muscle, cardiac muscle, and some skeletal muscle

Answers

Answer:

answer part d

Explanation:

smooth muscle, cardiac muscle, and some skeletal muscle

Involuntary muscle includes smooth muscle and cardiac muscle only.

What is meant by involuntary muscle?

Muscles that contract or move voluntarily are known as involuntary muscles. Involuntary muscle action is controlled by the autonomic nervous system. The internal organs or viscera that exhibit consistent, gradual contractions and involuntary motions are typically connected with these muscles. The heart is one such uncontrollable muscle.The autonomic nervous system, hormones, and local variables can cause the involuntary activity of the majority of involuntary muscles by neural stimulation. But in other muscles, such as the walls of visceral organs, extending the muscle can cause an involuntary muscle contraction.

Therefore, option (C) is correct.

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12. What is the function of the vacuole? *
(1 Point)
A. sac that stores water, nutrients and waste products
B. sac filled with digestive chemicals
C. jelly-like substance within the plasma membrane
D. stack of membranes that package materials

Answers

The answer is A: sac that stores water, nutrients, and waste products :)

The vacuoles are the structures found inside the cells that store water, nutrients as well as waste products. So the correct option is option A.

The vacuole plays a vital role in many cells. Mature cells of all land plants, most fungi, and algae (with the exception of prokaryotes) contain vacuoles. On the other hand, animal cells and immature plant cells (as well as some highly immature plant cells (stone cells) contain no vacuoles.

These vacuoles store the essential nutrients and water that a cell needs to survive. They also contain the waste of the cell and protect it from contamination.

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Given is a strand of DNA, fill in the corresponding RNA strand and find which amino acids that strand codes for.

Answers

Answer:

The correct answer would be -

RNA - AUG GGG CCU UAC UAA

Amino acid -methionine-glycine-proline-tyrosine -stop codon

Explanation:

In the process of protein synthesis, the first process is known as transcription which involves the transcribing the mRNA strand from the DNA strand in a complementary manner. In this manner, Adenine transcribes into uracil and cytosine transcribe into guanine similarly thymine into adenine and guanine into cytosine.

Then, DNA strand - T-A-C-C-C-C-G-G-A-A-T-G-A-T-T will change into AUG GGG CCU UAC UAA and every three codes represent a triplet codon that translates into an amino acid first code called start codon and normally code for methionine (AUG) and last code for stop and does not code any amino acid.

Then, the amino acid will be - methionine-glycine-proline-tyrosine -stop codon

When was the last time the United States and Mexico fought a war? O A. 1903 to 1904 O B. 1939 to 1940 O C. 1846 to 1848 D. 1800 to 1804​

Answers

Answer:

It is 1846 to 1848

Explanation:

Hope it helps

Rabbits reproduce in the spring. How do you think a period of cold springs will affect the rabbit population?

Answers

Answer: The population would decrease.

Explanation: They need warm temperatures

What is a non-renewable resource?
A. A resource that has already been used up
B. A resource that is infinitely abundant
C. A resource generated at a rate that
is much faster than it is used
D. A resource generated at a rate that
is much slower than it is used

Answers

the answer should be “D” :)

Erythrocytes might the best of example of form equals function because they lack many organelles. What organelles are absent in erythrocytes?

Answers

Mature mammalian red blood cells lack nuclei, mitochondria and rough endoplasmic reticulum, they do not contain DNA and consequently, cannot divide. They also cannot synthesise RNA nor synthesise any new proteins, and consequently, have a limited lifespan. Mature red blood cells circulate for about 100–120 days in the body before they are removed by the spleen.

Hope this helps

A table in a room is like a

B. Not alive
D. 46 Total
E Nucleus​

Answers

Answer:

nucleus im pretty sure haha

Explanation:

Uh I think it’s Not alive, because tables are solids and they don’t move, breath or make anything for us. So B.

PLEASE HELP When do lunar eclipses occur?(1 point)


A. They happen every month during the new moon.


B. They happen infrequently during the full moon.


C. They happen every month during the full moon.


D. They happen infrequently during the new moon.

Answers

i think its B bc Lunar eclipses can only happen when the Moon is opposite the Sun in the sky, during a full moon. But lunar eclipses do not occur every month because the Moon's orbit is tilted five degrees from Earth's orbit around the Sun

A plant can have green (G) or yellow (g) leaves. It can also have a long (K) or
short () stem. A scientist is preparing a Punnett square for a dihybrid cross
of a plant with a genotype GGKK. What possible gametes can the plant
produce?
O A. GG, Kk
OB. GK, Gk
OC. GK gk
OD. GK, Gk, gk, gK

Answers

answer: A





hope it helps

Which activity is NOT part of the hydrosphere?
A. rain falling from clouds
B. fish swimming in a pond
C. waves pounding a sandy shore
D. a stream tumbling over large rocks

Answers

Explanation:

rain fallung from clouds

D because most of the hydrosphere activities in include water

separation of dry sand,water and palm oil

Answers

Answer:

evaporation??

Explanation:

T (tall) is dominant over t (short)
G (green) is dominant over g (yellow)

Cross a short yellow, plant with a plant that is heterozygous for both traits

Answers

Answer:

The crossing plant with short yellow should be tall green

Explanation:

short yellow = tg

tall green = TG

their kids' traits = Tt, Tg, tG, gG (all heterozygous)

Answer:

sorry its kinda messy i added a picture

The energy that is not transferred to the next trophic level as biomass is not lost or destroyed. It is transferred to the __________. What word completes the sentence?

Answers

Answer:

Atmosphere.

Explanation:

The Law of Conservation of Energy states that energy cannot be destroyed but can only be transformed or converted from one form to another.

This ultimately implies that, the energy that is not transferred to the next trophic level as biomass is not lost or destroyed. It is transferred to the atmosphere.

Please help it’s due soon...

Answers

Answer:

75%

Explanation:

Does anyone know what the 4.06 module exam password and science is? I’m too scared to ask my teacher :-(

Answers

this app is used world wide , maybe try asking a classmate

1) what important lesson can we learn from Saturn?

2) what important role does Saturn play? ​

Answers

Answer: 1- Saturn is really synonymous with the human path toward wholeness, and liberation "from the chains that bind us", for it is through learning life's lessons that we attain true freedom, experience personal power and connect with universal Truth.

2- Saturn believes in discipline and strictness and never likes chaos and disobeys. In Hindu Astrology, Saturn has great significance. People are afraid of this planet due to his strictness and discipline. The slow transit of this planet offers two important common periods namely Sadhe Sati and Dhaiya.

Explanation: Hope this helped! :)

The analysis of rRNA gene sequences to compare evolutionary relationships is known as
O molecular phylogenetic analysis.
O RNA sequence comparison.
O molecular evolutionary analysis.
O molecular clock analysis.

Answers

The RNA sequence comparison

how the petroleum come from the earth crust​

Answers

Answer:

Petroleum reservoirs can be found beneath land or the ocean floor. Their crude oil is extracted with giant drilling machines. ... There are huge quantities of petroleum found under Earth's surface and in tar pits that bubble to the surface. Petroleum even exists far below the deepest wells that are developed to extract it

Explanation:

Hope this helped Mark BRAINLEST!!!

Which organism is most likely to be found in a deepsea trench?Immersive Reader (1 Point) a. Archaebacteria b. Eubacteria c. Protist d. Fungus

Answers

Hey, sorry about the person who gave you a virus... pretty sure most people who leave links are doing similar things unfortunately. The answer is Archaebacteria I’m pretty sure. Eubacteria are found everywhere, Fungi are mushrooms, protists exist all over underwater areas. Haven’t researched it in a while but hope this answer helps :)

The organism that is most likely to be found in a deep sea trench is Archaebacteria. The correct option is a.

What is Archaebacteria?

The domain of single-celled organisms is called Archaea. These microbes are prokaryotes because they lack cell nuclei.

The term "archaebacteria," which was used to describe archaea when they were first categorized as bacteria, is no longer in common usage.

The group of microorganisms known as archaebacteria is frequently referred to as a kingdom. They are thought to be an ancient form of life that originated independently from bacteria and blue-green algae.

Archaea are well known for their preference for living in harsh conditions.

There is likely life there, and that life is likely an archaeal species whether it is extremely hot (hotter than 100° Celsius), freezing, acidic, alkaline, salty, deep in the ocean, or even assaulted by gamma or UV radiation.

Thus, the correct option is a.

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What is a potential risk of a long-term stationary front?

A. tornadoes

B. flooding

C. hurricanes

D. drought

Answers

the answer is B. flooding

Answer:

B

Explanation:

How does this quote reflect the influence of Enlightenment ideas on the Founding Fathers?

Answers

Answer: The United Nations promotes universal human rights.

It shows support for individual liberties.

Explanation:

Answer:

they reflected because they supported individual liberties

Explanation:

none

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