1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
pogonyaev
3 years ago
12

List in the order they occur in during the development of red blood cells.

Biology
1 answer:
Serhud [2]3 years ago
7 0

Stem cells arise from the inner mass of the cell

Signalling factors trigger differentiation in stem cells

Genes that lead to the production of undifferentiated blood cells are activated

Signalling factors cause undifferentiated blood cells to produce red blood cells

Explanation:

Red blood cells are formed in the bone marrow. The precursor to the RBC is stem cell which is undifferentiated and pluripotent. The stem cell gets differentiated to form immature RBCs. Immature RBC then gets divided and becomes mature. Stem cell giving rise to RBC is called Haemoctytoblast. The process of erythropoiesis takes 2 days to form new  red blood cells

You might be interested in
When oxygen is plentiful inside a skeletal muscle cell, what happens to the pyruvic acid that is formed during glycolysis?
Iteru [2.4K]

Answer:

d. it diffuses into mitochondria to be broken down to generate ATP

Explanation:

When enough oxygen is available in the muscle cells, pyruvate produced by glycolysis enters the mitochondrial matrix. Once inside the mitochondria, pyruvate is decarboxylated into acetyl CoA. The reaction is catalyzed by the enzyme complex pyruvate dehydrogenase. Acetyl CoA then enters a sequence of reactions called Kreb's cycle and is broken down into CO2 and H2O. The energy released during these reactions is stored in the form of NADH and FADH2.

The NADH and FADH2 are oxidized by giving their electrons to O2 via electron transport chain. During this oxidation, the proton concentration gradient is generated across the inner mitochondrial membrane which in turn drives the process of ATP synthesis.

4 0
3 years ago
Human sperm cells and egg cells are
Alenkasestr [34]

Answer:

They make a zygote.

Explanation:

When they come together it is the first step into making a Baby.

8 0
3 years ago
Read 2 more answers
What is the DNA sugar name
Aleonysh [2.5K]
The answer is Deoxyribose
7 0
3 years ago
Read 2 more answers
Sketch and label a food-web that includes at least 6 different items. Make
astra-53 [7]

Answer and Explanation:

Example of a food-web:

(1) Algae --> (2) Protozoas --> (3) Krill --> (4) Cephallopods --> (5) Medium sized dolphin --> (6) Large Dolphin

The trophic web is the process of energy transference through a series of organisms, in which every organism feeds on the preceding one and becomes food for the next one.

1) The first link is an autotroph organism or producer, such as a vegetable, that can synthesize organic matter from inorganic matter. In this example, the autotroph organisms are algae, that make use of sunlight and inorganic matter.

The next links are the consumers:

2) Herbivores are primary consumers and feed on producers. In this example, herbivore organisms are protozoan.

3) Krills are the secondary consumers and feed on protozoans.

4) Some species of cephalopods feed on krill, among other species.

5) Specialized Cetaceans such as the Risso´s dolphin, feed especially on cephalopods, as they lack upper teeth and they only have a few teeth in their jaws.

6) The killer whale is a big sized-dolphin and a very important predator. It feeds on many animals, and one of them is the Risso´s dolphin.

4 0
3 years ago
A while mates with a blavk hen. The offspring is gray color. What is this phenomenon called
Lynna [10]

Answer:

Incomplete Dominance

Explanation:

Incomplete dominance is a phenomenon in which the alleles of two genes are not completely dominant over each other and so when they are present at the same time in an organism (heterozygous for that gene) the organism will have an intermediate phenotype that is a combination of both phenotypes.

For example: The flower color in Snapdragon can have three different genotypes as well as phenotypes. The flowers can be red, pink or white depending on their genotype. The allele for red flower (R) is incompletely dominant over allele of white flower (r). A plant with genotype RR will be red flowered and that with rr will be white flowered. However, if a plant has genotype Rr (intermediate), then the flowers will be white in which no allele was dominant over the other and both showed their effect giving a combination of two colors as Pink flowers.

Same is the case with the mating between white and black hen, where offspring was grey in color. This grey was a combination phenotype of two phenotypes.

Hope it helps!

7 0
3 years ago
Other questions:
  • What removed oxygen from the air
    13·1 answer
  • In a forest ecosystem including rabbits, wolfs, foxes, and plants, what are two possible reasons the rabbit population might dec
    15·2 answers
  • Social networks and the reciprocal norms associated with these networks that encourage people to do things for each other are kn
    5·2 answers
  • Regulation of breathing is controlled not by the amount of oxygen circulating in the blood but by blood pH. When the blood becom
    7·1 answer
  • If renewable resource is consumed at a rate that exceeds its natural rate of replacement , what will happen?
    9·1 answer
  • Can someone help me with this it would really make my day go right
    9·1 answer
  • 100 POINTS QUESTION!! NEED HELP!
    7·2 answers
  • Evidence for evolution includes all of the following exept
    6·1 answer
  • 2. What structure caused rotifers to be called wheel animals or wheel bearers?
    8·1 answer
  • read the scenario. scientists are studying compounds in a newly discovered rain forest plant. the plant produces an unusual subs
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!