easy biology question first correct answer gets brainliest

Answer:

Antigens are secreted by the endocrine system

Explanation:

The main job of the innate immune system is to fight harmful substances and germs that enter the body, for instance through the skin or digestive system. The adaptive (specific) immune system makes antibodies and uses them to specifically fight certain germs that the body has previously come into contact with

Answer:

C. Pollen is produced

Explanation:

The pollens are produced in the anther. So, option (C) is the correct answer.

Answer:

please tell me you know, my hands are literally shaking at how easy this question is

Explanation:

the answer is photosynthesis is a way for plants to make oxygen

still not enough information? they convert carbon-dioxide and water into oxygen and sugar, so they eat the sugar making their own food, put plants are living if they eat sugar. so they also have cellular respiration from mitochindria (photosynthesis is from chloroplasts and chrolophyll inside the chloroplast) and plants BREATH OUT SOME CARBON-DIOXIDE and produce more Oxygen than carbon-dioxide, thus providing the earth with Oxygen

Answer:

1.) tides

2.) Salinity

3.) Oceans

4.) reef

5.) Intertidal Zone

6.) Neritic Zone

7.) Benthic Zone

8.) Reef

9.) Estuary

10.) Marine Biome

Hope this helps!

Answer:

b

Explanation:

because It have ionic bonding and when in molten form ions are mobile and carry a charge however when in solid form it wouldn't conduct electricity as the ions will be fixed in position.

hope this helps:)

Answer:

Anaphase.

Explanation:

You can see the separation happening. This is anaphase.

Hope this is correct, good luck on your studies.

Answer:

decomposers

Explanation:

Answer:

decomposer

Explanation:

Fungi and bacteria are the most common decomposers.

The plants releases oxygen as a byproduct of photosynthesis. this oxygen molecules diffuse through the atmosphere which are inhaled by birds. The correct option is B.

Photosynthesis is the process of making their own food by plants using carbon dioxide and water in the presence of sunlight and chlorophyll.

During photosynthesis, plants release oxygen as a byproduct which diffuses in the atmosphere and get inhaled by the organisms.

Photosynthesis' principal role is to transform sunlight into chemical energy and then hold that chemical energy for later use. This process powers the majority of the planet's living systems.

Photosynthesis is the process by which water and carbon dioxide are converted into glucose and oxygen. The plant consumes glucose as food and produces oxygen as a waste product.

Cellular respiration is the process by which glucose and oxygen are converted into water and carbon dioxide. Water and carbon dioxide are byproducts of the process, and ATP is the energy that is produced.

Thus, the correct option is B.

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Answer: A

Explanation: The nervous system is the brain and spinal cord.

Answer:

A. True

Explanation:

Answer:

Presence of thorn stems, invasive nature and strong scent of of multi rose plant.

Explanation:

The presence of thorn stems, invasive nature and strong scent of of multi rose plant are the specialized structures found in multiflora rose support its reproduction and spreading and dispersal throughout ecosystems in the United States. The presence of thorn stems prevent animals to feed on the multi rose plant while on the other hand, strong scent of of multi rose flower attract pollinators that increase its pollination and increase occur in its population.

Answer:

Im not a 100% but i think it's option C, if not then it has to be B

Hope this helps!

Answer:

no, of course not

Explanation:

Would you use drugs to gain a competitive advantage in sports? No, its against the rules and also unethical. It's not healthy. You've seen Jurassic Park right? It would lead to ruin.

It just got blowed or you can say get mixed in the air around you. You can see tiny pieces of ash while buring paper or wood. And that's exactly your answer.

Answer:

The ashes of the wood or paper either got blown around in the wind because of the ashes being so small and weightless, or they went into the air around you.

Answer:

C. The green allele is recessive to the yellow allele

Explanation:

Complete dominance occurs when one gene variant or allele referred to as the 'dominant allele' completely masks the expression of another allele referred to as the 'recessive allele' in heterozygous individuals, i.e., in individuals carrying one copy of the dominant allele and one copy of the recessive allele for a particular locus/gene (whereas homo-zygous individuals carry the same alleles for a given locus/gene). Mendel crossed pure lines of pea plants, i.e., homo-zygous lines for different traits such as seed color (yellow and green) and seed shape (round and wrinkled). In this case, the parental cross was YY x yy, where the 'Y' allele is dominant and encodes for yellow seed color, and the 'y' allele is recessive and encodes for green seed color. From this cross, Mendel obtained a hybrid F1 (i.e., all progeny was heterozygous with genotype Yy). An expected 3:1 ratio as observed in this case (6,022 yellow and 2,001 green seed >> 3:1 ratio) is characteristic of the progeny that results from mating between F1 heterozygous parents, where each parent has one dominant allele and one recessive allele, i.e., F1 parental cross: Yy x Yy >> F2: 1/4 YY (yellow color); 1/2 Yy (yellow color); 1/4 (green color) >> 3:1 ratio of yellow to green seeds.

Answer:

c

Explanation:

no explanation (plz give brainliest)

The statement C is correct. There will be nuclear DNA present.

Deoxyribonucleic acid is a polymer composed of two polynucleotide chains that coil around each other to form a double helix carrying genetic instructions for the development, functioning, growth and reproduction of all known organisms and many viruses. DNA and ribonucleic acid are nucleic acids.

Moreover, DNA is the information molecule. It stores instructions for making other large molecules, called proteins. These instructions are stored inside each of your cells, distributed among 46 long structures called chromosomes.

Hence, DNA is made of chemical building blocks called nucleotides. These building blocks are made of three parts: a phosphate group, a sugar group and one of four types of nitrogen bases.

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Answer:

Variability was seen as imperfection, so natural selection could only eliminate the inferior and imperfect, not giving rise to new things, new species.

:

the answer is D !!!!!!!

Answer:

maco shark

Explanation:

It is a fast speed-swimming shark that has been called “the peregrine falcon of the sharks” in allusion to the fastest bird in the world. It is considered an animal dangerous to humans because of the speed which can attack and its ability to jump into the fishing boats.

The frequency graph represents selection that may lead to reduced variation in a population.

Answer:

Each time lizards colonized an island, they evolved into many of the same forms. .Other lizards adapted to life among the thin branches lower down on the trees, evolving short legs that help them hug their narrow perches. Still other lizards adapted to living in grass and shrubs, evolving long tails and slender trunks.Lizards are low on the food chain. Providing protection from their natural predators ensures their continued existence. Plant bushy perennials, create a rock or brush pile or use man-made items like stacks of bricks or pipes.

Answer:

The author wants the reader to think of a highly dynamic system, with movement, effectiveness and productivity.

Explanation:

As we can see in the text presented above, the author shows the human body as a highly dynamic and movement system that allows the correct functioning of all body functions. This makes the reader think of a highly dynamic factory that works in agility so that all its products are produced quickly and with great efficiency. The dynamics that the author presents becomes more evident when he says that this system is full of workers, who are the cells that regulate all work.

Answer:

C. Y

Explanation:

The point that the kinetic energy increasing and its potential energy decreasing is Oz.

To calculate the kinetic energy of an object with mass “m” and speed “v”, we must apply the formula Ec = mv²/2, where: Ec – kinetic in joules; m – mass in kg; v – speed in m/s.

Gravitational potential energy that depends on the vertical position and mass of an object.

With this information, we can conclude that The point at which the kinetic energy increases and its potential energy decreases is Oz.

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[tex]\bf{\underline{\underline{PHOTOSYNTHESIS }} }[/tex]

Photosynthesis is a chemical reaction that takes place inside a plant, producing food for the plant to survive.Carbon dioxide, water and light are all needed for photosynthesis to take place.Photosynthesis happens in the leaves of a plant.

Answer:

d

Explanation:

Because you need the cell to become tissue then the tissue Becomes organs then a bunch of organs become a organ system

Answer:

C. Xylem moves water up, and phloem moves food down

Explanation:

The xylem moves water up, and the phloem moves food down. So, option (C) is correct answer.