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
dem82 [27]
3 years ago
12

Cells from different parts of an organism have varying and

Biology
1 answer:
maria [59]3 years ago
7 0
What is the question?
You might be interested in
All known organisms use genetic information to produce protein molecules via the same genetic code. This finding strongly suppor
jeyben [28]

Question:All known organisms use genetic information to produce protein molecules via the same genetic code. This finding strongly supports the hypothesis that __________.

a) the earliest macromolecules probably arose when lightning struck an oxygen-free atmosphere

b) all organisms are descended from one or a few common ancestors

c) the genetic code readily evolves by natural selection

d) there's only one possible way to encode information in a macromolecule

Answer:

b) all organisms are descended from one or a few common ancestors

Explanation:

Protein synthesis occurs when the nucleotide sequence of the mRNA is read in the form of genetic codes. A specific genetic code specifies the same amino acid in all living beings. For example, the code "UUU" codes for phenylalanine in all the living beings irrespective of their species. This suggests that all the life forms have originated from one or few common ancestors and the genetic code has been preserved during the course of evolution of various species.

4 0
3 years ago
Two yeast cells were placed into a special container to which food was continually added, to keep it at a constant concentration
Andrews [41]

Answer:

Answer to Two yeast cells were placed into a special container to which food was continually ... All Other Factors Were Set For Optimal Yeast Growth (for Example, ... The Population Was Sampled Every Hour For 21 Hours And The Results Of The ... to which food was continually added, to keep it at a constant concentration.

Explanation:

Answer to Two yeast cells were placed into a special container to which food was continually ... All Other Factors Were Set For Optimal Yeast Growth (for Example, ... The Population Was Sampled Every Hour For 21 Hours And The Results Of The ... to which food was continually added, to keep it at a constant concentration.

4 0
2 years ago
Tissue culture experiments with PDGF demonstrate that without this substance _____.
Sergeeva-Olga [200]

Answer:

Answer is 2. Fibroblasts fail to divide.

Explanation:

Tissue culture experiment is the experiment where tissues are grown in an artificial medium. This involves the use of growth medium such as agar or broth. This process help to produce needed tissues in a short period of time.

Fibroblasts are cells which are found in the collective tissues, and they produce collagen. The collagen produced by the Fibroblasts play important role in tissue repair. Fibroblasts are regarded as the main cells in the connective tissue.

Note that, PDGF, which is Platelet -derived growth factor in full, is a growth factor regulating cell growth and it's division.

5 0
3 years ago
Why will many species of bird migrate to warmer climate during the winter
Doss [256]
Bird migrations began with the recession of the glaciers during the ice age. You will notice a great increase in insects in the spring time and early summer.The birds moved North to take advantage of this increase in the food supply that followed the warming in the spring and early summer. Their reproductive organs temporarily developed so they could lay eggs and raise a family. Look at the early flush of Night crawlers in the moist times of the early rains. By mid summer most of the insects have matured, mated and died. Their eggs have hatched and turned to larva and moved underground until next spring. The shortening of the days causes the reproductive functions to decrease and signals the birds that the food will soon become scarce. They move back to the area that makes it the easiest to find food and avoid freezing. which of course is the warmer climates nearer the equator. Not all birds move past the Tropics at approximately 30 degrees. Some like Chickadees may move down from Mi or Mn or Canada only as far south as Indiana. Some migrations may be quite short. For example from the mountains down to the plains. They don't generally reproduce in the warmer winter climes they migrate to. In the spring time they migrate along paths of the retreating glaciers. As the climate warms away from the tropics the birds follow the emerging insects etc to the birds selected breeding grounds.with increased insects and longer days to feed the hatching's. It is necesary to understand why they move to cooler climates in the summer to under stand why they move to eh warmer ones in the fall. As the days shorten the food supply dwindles and the babies have fledged. They move to warmer climates in winter to rest and refuel for the next years migration.
8 0
3 years ago
At each level of the food chain, what happens to approximately 90% of the available energy?
KiRa [710]
90% of the available energy is lost in some form of heat, transferring light energy into different living organisms 
7 0
3 years ago
Read 2 more answers
Other questions:
  • What determines the viscosity of magma m b
    14·1 answer
  • Which of the following describes a scientist behaving in an unethical manner might? A scientist who revises a hypothesis that ha
    14·1 answer
  • If Earth was like a hardboiled egg, which part of Earth would the egg white represent?
    13·2 answers
  • 1) The density of a substance is the ratio of its mass to its volume. The formula for density is: D = mass/volume. If the densit
    6·1 answer
  • What list describes the diet of a carnivore? (2 points)
    13·2 answers
  • What is a substance that cannot be broken down into other substances by chemical reactions?
    8·1 answer
  • Which statement about ddt best shows how science has been impacted by society? ddt led to insect resistance. ddt was considered
    7·2 answers
  • Which of the following traits make a good index fossil?
    14·1 answer
  • Which of the following processes converts glucose molecules to carbon dioxide molecules?
    12·1 answer
  • Atlantic striped bass and larval tapeworms that belong to the order Trypanorhyncha are in a parasite-host relationship because l
    13·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!