Help please :)
I know it’s not hard I just don’t wanna do it.

Answer:

Our immune system produces antibodies against that antigen of pathogen.

Explanation:

Injecting an antigen from a pathogen would help our immune system memorize the infection and protect our body from causing of the disease because our immune system produces antibodies against that antigen so when the pathogen enters our body these antibodies attack on that and prevent them of causing infection in the body so that's why injecting an  antigen has to be done from the childhood to prevent diseases.

Answer:

i cant see the attachment

Explanation:

Answer:

During the day, desert temperatures rise to an average of 38°C (a little over 100°F). At night, desert temperatures fall to an average of -3.9°C (about 25°F). At night, desert temperatures fall to an average of -3.9 degrees celsius (about 25 degrees fahrenheit).

Answer:During the day, desert temperatures rise to an average of 38°C (a little over 100°F). At night, desert temperatures fall to an average of -3.9°C (about 25°F). At night, desert temperatures fall to an average of -3.9 degrees celsius (about 25 degrees fahrenheit).

Explanation:i hope u have a wonderful night and stay safe

Answer:

The structure of the silkworm is that the liquid silk hardens into five filaments which stick together in silk thread the silk are wrapped around the silk worm and forms a cocoon inside the cocoon the silk worm develops into a pupa in 15 days one silk worm secretes 1000-5000 meters of silk thread

I hope this might be the answer and might help u out

Answer:

Histrio?

Explanation:

Answer:

A. Class

Explanation:

As you look at Animal l column and Animal V column you can see their first difference appears in the class row.

Answer:

Cellular respiration is the aerobic process by which living cells break down glucose molecules, release energy, and form molecules of ATP

Explanation:

Answer:

Peptide bonds

Explanation:

brainliest

Answer:

A wetter climate slows the rate of transpiration allowing for there to be more stomata present on each leaf. Plants lose a lot of water when they open their stomata to get carbon dioxide for photosynthesis, especially in hot, dry deserts. Cacti lose less water by only opening their stomata at night.

Explanation:

Answer:

A cellphone network. Often spanning an entire country, a cellular system comprises a core network that connects to base stations with antennas on towers that span up to 20 miles in diameter. GSM and CDMA are the two major cellular technologies.

Explanation:

Answer:

Often spanning an entire country, a cellular system comprises a core network that connects to base stations with antennas on towers that span up to 20 miles in diameter. GSM and CDMA are the two major cellular technologies. See cellphone, cellular generations, GSM, CDMA and microcell.

Explanation:

got it from goo gle

Answer:

1) MRNA

2) Triplet code

3) Amino acid

4) protein

True

Have a lovely day <3

Answer:

Self-concept is the set of ideas that make up the image that each person has about himself, that is, it is the opinion that an individual forges about himself. That sentence carries a certain value judgment. Self-concept: set of elements that a person uses to describe himself. Self-motivation is giving the reasons, the drive, the enthusiasm and the interest that provoke a specific action or a certain behavior. Volunteer is the person who, by his own choice, dedicates part of a part of his time to solidary, altruistic action, without receiving remuneration in return. The stage that comes after childhood and that ranges from puberty to the full development of the body is known as adolescence. Self-image is the value we have in relation to ourselves.

Explanation:

Self-concept: set of elements that a person uses to describe himself. The ability to motivate yourself is what is known as self-motivation. This is an important skill, as it encourages people to continue progressing even in the face of setbacks, to seize opportunities and to show commitment to what they want to achieve. Volunteer is that person who joins an organization in a free way to help altruistically in various social activities. When we speak of self-image we refer to the image that our subconscious has of ourselves. Adolescence is understood as the period of human development after childhood and before adulthood, in which the biological, sexual, social and psychological changes necessary to form a socially mature individual and physically prepared for reproduction take place.

Answer:

You have the right answer, its B.

Explanation:

Answer: Mitochondria evolved from endosymbiotic prokaryotes that were able to use oxygen to generate energy rich ATP. To prokaryotes then evolved into mitochondria that now power the cells of all multicellular organisms.

Explanation:

Answer:

According to this theory mitochondria evolved from bacteria and somehow became incorporated into the cytoplasm.

Explanation:

i don't know which theory ur talking about but this theory is the endosymbiotic theory

Answer:

c

Explanation:

because I don't know how to exam tho

Exchange of gases between alveoli and the bloodstream ( Option C )

Internal respiration is the process of exchanging gases ( i.e. carbon dioxide and oxygen ) between the bloodstream and the alveoli of an organism.  as seen in human.

Also the Alveoli is important in both external and internal respiration. but for internal respiration, the alveoli exchanges gases with the bloodstream before it is passed to the internal issues .

Hence we can conclude that the true statement about internal respiration is ; Exchange of gases between the alveoli and the bloodstream.

learn more : https://brainly.com/question/2842723

Answer:

B. Channel protein

Explanation:

Channel protein is basically a channel which substances passes through, showing in the picture.

Explanation:

Channel protein because

Answer:

Developing countries have a low life expectancy because things like water might be populated/scarce, the air may be polluted and immunisation might not be possible. But developed countries are more likely to have safe drinking water, and vaccines.

Answer:

Plant cells

Explanation:

Visually, plant cells are more rectangular and organized as compared to animal cells which are more diverse in shape. I hope this can help you!

Answer:

Commensalism

Explanation:

Mutualism- both benefit

Parasitism- One benefits, the other is harmed

Competion- fite

Answer:

commensalism

Explanation:

just did the test

Answer:

Variations in species led to evolution. Some species have desirable traits that are beneficial to their survival. Some species have undesirable traits that are not beneficial to their survival. E.g. peppered moths are not easily seen by predators because they camouflage with the bark, black moths are easily seen by predators so they are eaten. In the example mentioned, the peppered moths have a beneficial trait, this is also known as fitness, because the organism is fit for survival, unlike the black moths. Overtime the population of black moths decreases because they are not fit for survival, therefore the black moths cannot reproduce offspring that also have black wings. However, the population of peppered moths increases, because the peppered moths are able to reproduce offspring. Those offspring inherit their parents' traits, which make them have peppered wings too.

Answer:

It should be 2- Bonds

Explanation:

Energy, potential energy, is stored in the covalent bonds holding atoms together in the form of molecules.

:)

Answer:

C. Some giraffes have acquired longer necks by stretching to reach food and passed that trait on.

Explanation:

C matches with G and A matches with T, so:

TGACGGTA

matches with

ACTGCCAT

Answer:

ACTGCCAT

Explanation:

complementary means you can form a double- stranded structure by matching base pairs.

In this case we have TGACGGTA and the matching pairs are ACTGCCAT.