Are all animals heterotrophic? What about people?

Humans are heterotrophic, plants are autotrophic and heterotrophic, and animals are heterotrophic (but there are exceptions, depending on the way of classification). In the past, living things were divided into three realms, but now there are multiple demarcation systems. Even there are many classification systems, and now is the time for the rise of classification at the molecular level, but the application is still based on the old one (too much information is in the old classification system), some organisms are both unicellular and multicellular, and some are both animals and plants, so that they have to be mentioned in every classification.

In conclusion, both statements that all animals are heterotrophic and not all animals are heterotrophic are both true and mean almost the same.

First of all, heterotrophic refers to the process in which an organism cannot synthesize organic matter on its own when ingesting food, and must obtain organic matter from other organisms or the external environment. Autotrophs, on the other hand, refer to organisms that can synthesize organic matter on their own to meet their own needs.

To the question "Are all animals heterotrophic", the answer is yes. Because animals cannot synthesize organic matter on their own, they must obtain organic matter from other organisms or the external environment to sustain their life activities.

For the question of "what about humans", humans are also heterotrophs. We can't synthesize organic matter on our own, we have to eat food to get the energy and nutrients we need.

In conclusion, heterotrophies are the main way organisms such as animals and humans obtain energy.

Not all plants are autotrophic.

For example, parasitic plants are both autotrophic and heterotrophic, such as dodder seed, mistletoe, in addition, there are pitcher plants and Venus flytraps are both autotrophic and heterotrophic;

Not all animals are heterotrophic.

For example, some protozoa also contain pigments and can synthesize organic matter independently;

Differences: Mainly from the cell morphology, the ratio of eukaryotes to prokaryotes is mainly with or without a formed nucleus, animals and plants are eukaryotes, and the main difference between animal and plant cells is whether there are vacuoles and whether there is a cell wall.

No, like the euglena of the phylum Protozoa, it is a single-celled organism that does not have a cell wall but has chloroplasts. In the absence of light, it can absorb organic matter in the environment to maintain life activities, and in the presence of light, it can be self-trophic through the photosynthesis of chloroplasts to make organic matter such as sugars.

Attribution of euglena.

See for yourself.

The blood of animals is not always red, either. The blood of molluscs and arthropods is blue (with exceptions) because the blood lymph of these animals dissolves in a blue copper protein called hemocyanin, which also plays a role in transporting oxygen.

The color of the blood is different, the red color of the blood comes from the hemoglobin in the red blood cells, which is bright red when the oxygen content is high (arterial blood), and dark red when the oxygen content is low (venous blood). Usually blood donation is drawn from venous blood, so the outside ** is dark red. If the blood contains more methemoglobin or other hemoglobin derivatives, it will be purple-black.

Not O! The blood of the vast majority of animals in the world is bright red, like human blood. However, there are also some animals whose blood is not bright red, but colorful.

The blood color of earthworms is very beautiful and rosy in color.

The spider's blood is turquoise.

A small ring worm in the crevices of the rocks by the sea, its blood is bright green, so some scientists call it"Green blood bugs".The blood of the squid is also green.

The blood of prawns, sea crabs, and hairy crabs is pale cyan, so human shrimp and crabs are bloodless animals.

There is an arthropod called the horseshoe crab, and its blood is blue. The blood of mussels and snails is also blue.

The snail is more likely to be mistaken for a bloodless animal because its blood is white, a bit like milk.

There is one in the Antarctic seas"White blood fish"Its blood has neither hemoglobin nor other substances brought by oxygen, not even blood cells, so the blood is colorless. There are more than a dozen species of precious fish in the waters near Antarctica, and their blood is colorless.

What's even more peculiar is a kind of fan crab that lives on the rocks of the seabed, and its blood can actually change color, turning green for a while, and red for a while.

Why does animal blood have different colors? It turns out that the color of blood is determined by the elements contained in hemochromatin. In the process of evolution, various animals have formed different types of hemochromatin, so the color of blood is also colorful.

The blood of all animals in the world is not necessarily red, and the color of blood depends on: the color of digestion and absorption of what is eaten.

No, not some fish in the sea.

In fact, if you put a person's blood under a microscope and look at it, you will find that it is no longer red. The red ones are just the hemoglobin of red blood cells.

No.. Plants that can photosynthesize are autotrophic, such as green plants. But for example, mushrooms survive by absorbing corrosive substances, so it is heterotrophic, and the dodder seed in the plant is also heterotrophic, it is white. Animals are basically heterotrophic.

Some plants cannot completely produce organic matter on their own, and need to be obtained from other sources, just like many animals, they are not completely autotrophic, and animals (single-celled organisms are not counted) are heterotrophic.

Not all plants are autotrophic.

There are pitcher plants that eat mosquitoes.

There are autotrophic animals.

The difference between plants and animals is whether there are large vacuoles or not.

Heterotrophs refer to those organisms that can only use the organic matter readily available in the external environment as energy and carbon, ingest these organic matter into the body, transform it into its own constituent substances, and store energy. Such as: putrid and parasitic fungi, most species of bacteria.

Resources.

A: No, it is not. Untie.

Analysis: Protozoa phylum Protozoa is the lowest type of eukaryotic single-celled animal in the animal kingdom, and the individual version is composed of a single cell weight. Protozoa are ubiquitous, protozoa are widely distributed, live in freshwater, sea water and moist soils, and there are also many species that live parasiticly.

There are about 50,000 species of protozoa that have been recorded, and zoologists have debated the classification of protozoa, which are generally divided into flagellates, sarpods, sporespores, and ciliates for convenience.

The representative animal of the protozoan daflagella class --- euglena. Within the cytoplasm of euglena there are chlorophyte forests. The shape of chloroplasts (e.g., oval, disc-shaped, sheet-like, band-like, stellate, etc.), size, number and structure (with or without protein nucleus and parastarch sheath) are the taxonomic characteristics of Euglena genera and species.

Euglena mainly uses light energy to photosynthesize under light conditions through chlorophyll, and synthesizes carbon dioxide and water into sugars, which is called photosynthetic nutrition (the same as general green plants). The excess food produced forms some translucent parastarch grains that are stored in the cytoplasm. Parastarch grains are similar to starch and are a type of sugar, but they do not interact with iodine in a blue-purple color.

Parastarch grains are one of the characteristics of euglena, and their shape and size are also the basis for their classification. In the absence of light, euglena can also absorb organic matter dissolved in water through the surface of the body. This mode of nutrition is called osmotic nutrition.

Yes, the answer above is limited to autotrophic in the presence of light, and in the absence of light, it is still able to absorb organic matter in the environment to sustain life activities, or is it heterotrophic, thank you.

It is generally like heterotrophs that are organisms that are not able to synthesize inorganic matter into organic matter.

Generally, but there are exceptions, and the creature is not too absolute.

Decomposers may also be facultative trophic organisms, such as red spiral, in the absence of organic matter, it can use light energy to fix carbon dioxide to produce organic matter, and it is a producer at this time; Under the condition that there is ready-made organic matter, it can use organic matter to grow, and then it is a decomposer again, which can be used to purify sewage.

Decomposer is the one who breaks down organic matter into inorganic matter. So it must be an anomaly.