BIOLOGY HIGH SCHOOL

Which kinds of cells are always single-celled?

Answers

Answer 1
Answer: Prokaryotes- bacteria, archae
Answer 2
Answer:

Final answer:

The cells that are always single-celled are prokaryotic cells and include bacteria and archaea. These cells do not have a nucleus and are much simpler than eukaryotic cells, which can form multicellular organisms. However, some eukaryotic organisms like yeast and protozoa, can also remain single-celled during their entire lifecycle.

Explanation:

The kinds of cells that are always single-celled are called prokaryotic cells and include bacteria and archaea. These cells do not have a nucleus and are much simpler than eukaryotic cells, which can form multicellular organisms. Each prokaryotic cell functions independently, and despite their simplicity, they are extraordinarily diverse and adaptable, capable of surviving in an array of environments from Arctic ice to volcanic vents.

It's also worth noting that some eukaryotic organisms like yeast and protozoa while being more complex and having nuclei, can remain as single-celled organisms for their entire lifecycle.

Learn more about Single-celled organisms here:

brainly.com/question/32039868

#SPJ6

Related Questions

Which of the following examples of an ecological study involves the ecosystem level of organization?A. The effects of human activities on biogeochemical cyclingB. The effects of a disease on population sizeC. The effects of an invasive plant species on bird nesting sitesD. The effects of competition on survival
Specific agricultural uses of water are all of the following except _____.
Skeletal muscles need a rich blood supply to provide them witha. oxygen. b. carbon dioxide. c. water. d. none of the above
Build a cladogram worksheet
Tiny, fingerlike structures called villi and microvilli increase the small intestine’s ____________________, allowing it to absorb more nutrient molecules.

Explain why an ecological pyramid is smaller at the top than at the bottom

Answers

Because energy is wasted as heat, there is less energy available as food for organisms at each level above so ecological pyramid is smaller at the top than the bottom.

What is Ecological pyramid?

  • .An ecological pyramid is a graphical representation of the relationship between diverse living organisms at various trophic levels.
  • These pyramids have the shape of true pyramids, with the widest base and the lowest trophic level, i.e., producers, covering it.
  • The following trophic level, i.e. main consumers and so on, is occupied by the next trophic level.
  • The uppermost level of an energy pyramid has the fewest animals since it has the least amount of energy.
  • Most ecosystems only have four trophic levels since there isn't enough energy to support another at a certain point.
  • The energy produced by the plants is distributed to the a pex predator in the amount of 0.01 percent.
  • As a result, it makes logical that the pyramid's tiers grow smaller and smaller as you progress up the pyramid.

To know more about Ecological pyramid here

brainly.com/question/15025609

#SPJ2
The ecological pyramid is a diagram that shows the very much like amounts of energy or matter contained within each level. That's why it is shaped smaller at the top than at the bottom because the bigger it is the more the organisms are there are. So the bottom has more living organisms and the top has less. Hope this made sense and helped

Most respiration occurs in organelles called _____ .mitochondria
Golgi bodies
ribosomes

Answers

Answer;

-Mitochondria

Explanation;

-Cellular respiration is the process by which cells breakdown organic molecules such as glucose to yield energy in the form of ATP, which is used by the cells to drive cellular processes such as transport, growth and excretion among others.

-The process mainly occurs in the mitochondria of a cell. The mitochondria therefore acts as a power house of the cell. Cellular respiration involves three stages or phases(if aerobic), glycolysis, citric acid cycle and electron transport chain.

Most respiration occurs in mitochondria.

What hormones does the pituitary gland produce?

Answers

The anterior pituitary gland produces growth hormone (GH), prolactin (PRL), follicle-stimulating hormone (FSH), luteinizing hormone (LH), adrenocorticotropic hormone (ACTH), and thyroid-stimulating hormone (TSH).
The posterior pituitary gland stores anti-diuretic hormone and oxytocin, both of which are actually produced in the hypothalamus.

How to make yogurt with fresh milk?

Answers

1.Pour the raw milk into a stainless steel pot.
2.Heat the milk to 110 degrees F (it's still raw at this temperature).
3.Add 1 packet of your direct-set starter culture to the milk.
4.Stir the milk and starter together gently until combined.
5.Pour the mixture into the yogurt maker jars.
6.Put the jars into the yogurt maker (without the lids).
7.Turn on the yogurt maker and incubate the yogurt for about 7-8 hours until the yogurt has set.
8.Remove the jars from the yogurt maker, screw on the lids, and store in the fridge.
9.Yogurt is good for up to 2 weeks.

If a plant that is heterozygous for seed color is crossed with a plant that is homozygous recessive for seed color, what would be the resulting genotypes and phenotypes of the offspring? (Y= Yellow Seed Coloration, y = Green Seed Coloration)

Answers

It would be Yy crossed with yy and you would have Yy,Yy,yy,yy and the phenotype would be Yellow,Yellow,Green,Green.

When a raw, shell-less egg was placed in sugar solution, the egg shrank. The egg was brought back to its original size by placing it in water. Which process does the experiment demonstrate?

Answers

The process that the experiment in question demonstrates is called Osmosis. It is the process in which a solvent moves from a region of higher concentration to a region of lower concentration through a semi permeable membrane. This way the concentration of the solution in both sides of the membrane becomes equal. 

Answer:

osmosis

Explanation:
Other Questions
The Canadian Shield, a vast expanse of ancient rock, is centered around which area?
How do age structure diagrams illustrate population distribution?
What do lysosomes produce that are essential to their function? A. Proteins B. Ribosomes C. Transport vesicles D. Digestive Enzymes
The hottest layer of the earth is the _____.