What is the largest group of living things on Earth?

What is the largest group of living things on Earth?

In terms of numbers of species, insects certainly represent the largest percentage of the world’s organisms. There are more than 1 million species of insects that have been documented and studied by scientists.

Which country has the largest number of wildlife species?


Which habitat has the highest number of species?

Unique Biodiversity. Eighty percent of the world’s known terrestrial plant and animal species can be found in forests, and tropical rainforests are home to more species than any other terrestrial habitat. A square kilometer of forest may be home to more than 1,000 species.

Do wolves live in the forest?

Wolves can thrive in a diversity of habitats from the tundra to woodlands, forests, grasslands and deserts. Wolves are carnivores—they prefer to eat large hoofed mammals such as deer, elk, bison, and moose.

Which organism has least number?

Answer. Smallest number: The female of a subspecies of the ant, Myrmecia pilosula, has one pair of chromosomes per cell. Its male has only one chromosome in each cell. Largest number: In the fern family of plants, the species Ophioglossum reticulatum has about 630 pairs of chromosomes, or 1260 chromosomes per cell.

What is the smallest living thing in your body?


Which is the smallest living cell?

Oregon State University and Diversa Corporation have discovered that the smallest free-living cell, known as SAR11, also has the smallest genome.

What is the smallest cell in the female body?

Granule Cell

Which is the smallest bacteria or virus?

Viruses are tinier than bacteria. In fact, the largest virus is smaller than the smallest bacterium. All viruses have is a protein coat and a core of genetic material, either RNA or DNA. Unlike bacteria, viruses can’t survive without a host.

How many human cells die each day?

In humans, as many as 1011 cells die in each adult each day and are replaced by other cells. (Indeed, the mass of cells we lose each year through normal cell death is close to our entire body weight!)

Which is biggest cell?

The largest cells is an egg cell of ostrich. The longest cell is the nerve cell. The largest cell in the human body is female ovum. Smallest cell in the human body is male gametes, that is, sperm.

Which is the longest cell in the world?

nerve cells

What is the longest nerve cell?

The longest axons in the human body are those of the sciatic nerve, which run from the base of the spinal cord to the big toe of each foot. The diameter of axons is also variable. Most individual axons are microscopic in diameter (typically about one micrometer (µm) across).

What is the biggest cell in the female human body?

egg cells

Which is the longest animal cell?

Complete answer: Neuron also known as a nerve cell is a cell that is the longest cell of animals which has the capability to get excited by electrical or chemical impulse. These cells help in communication inside the body.

What animal has the largest nerve cell?


Which animal cell is long and branched?

nerve cells are branched in animals like humans. An animal cell which has a branched structure is nerve cell also known as neuron.

Who discovered cell?

Robert Hooke

Which cell in human body have a branched structure?

Nerve cell

Which part is not present in an animal cell?

Answer: The plant cell has a cell wall, chloroplasts, plastids, and a central vacuole—structures not found in animal cells.

What is not found in all cells?

All cells have a plasma membrane, ribosomes, cytoplasm, and DNA. Prokaryotic cells lack a nucleus and membrane-bound structures. Eukaryotic cells have a nucleus and membrane-bound structures called organelles.

Which one is not present in cell membrane?

Therefore, it has been clear from the above discussion that Lignin is not present in the cell membrane. Hence, option C is the correct answer. Note:The plasma membrane consists of a lipid bilayer which includes cholesterol between phospholipids which maintain the fluidity of the membrane.

What three parts are in all cells?

A cell consists of three parts: the cell membrane, the nucleus, and, between the two, the cytoplasm.

What’s inside a cell?

Inside a Cell A cell consists of a nucleus and cytoplasm and is contained within the cell membrane, which regulates what passes in and out. The nucleus contains chromosomes, which are the cell’s genetic material, and a nucleolus, which produces ribosomes. Mitochondria generate energy for the cell’s activities.

Where is your DNA found?


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