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
Korolek [52]
3 years ago
6

What is a fossil? Give the best definition.

Biology
2 answers:
Ugo [173]3 years ago
7 0

Answer:

B

Explanation:

Fossils are ancient sometimes hidden treasures... remains of deceased beings or things that decayed over a period of time.

aivan3 [116]3 years ago
5 0
D is the correct answer
You might be interested in
Which series of labels correctly identifies the indicated structures in this sketch of a cell viewed under a microscope?
juin [17]

Explanation:

B [A.Golgi apparatus B.nucleolus C.endoplasmic reticulum D.mitochondrion E.ribosome F.lysosome]

Cellular organelles comprise proteins parceled into  membranes. These allow for storage of substances, and specialization of cell function.

Further Explanation:

Cells' structural components (i.e. their makeup) determine their function (what they do) . For instance, photosynthesizing cells in algae and plants have structures called chloroplasts. These contain chlorophyll, a specialized compound which facilitates the conversion of light energy to energy stored in carbohydrates.

In specific cell types, collected proteins may function as a unit called an organelle. Some organelles are bound by membranes like those that make up the external structure of the cell, with varying compositions of phospholipids and proteins. These are advantageous, as they:

  • may increase metabolic reaction efficiency; they allow cells to concentrates smaller fractions of enzymes and solutes such as the mitochondria
  • separate proteins and molecules that me harm the cell by parceling them into membrane-bound organelles for example, proteaseas bound within lysosomes can break down many structural proteins as seen in lysosomes
  • More specifically some organelles like vacuoles play a structural role in the cell; supports the cell membrane by exerting turgor pressure.

Other structures also play important support roles:

  • Nucleus:  houses all the genetic information of the organism
  • most proteins that function in the cytosol nucleus (such as DNA polymerase) are synthesized by free ribosomes.
  • Cytoplasm: contains the cytosol, microfilaments and other support structures in the cytoskeleton; it holds parts of the cell together
  • Golgi apparatus: protein modification and parceling for export

Learn more about cellular life at brainly.com/question/11259903

#LearnWithBrainly

8 0
3 years ago
Read 2 more answers
ILL GIVE BRAILEIST
nirvana33 [79]

Answer:

can i see the whole question or is that it?

Explanation:

if im wrong im so sorry but .....

I'm going to answer the first 3 in one comment and the next in the next comment 1)AUU GAU ACU GCA GC. 2) lle. asp. thr. ala. 3) CGA.?

5 0
3 years ago
Explain the carbon dioxide cycle. Use the words photosynthesis and respiration in your answer.
vovikov84 [41]
DO You Still need an anwser to this question

7 0
3 years ago
HIV can remain latent for several years and not cause any symptoms in its host. What viral reproduction cycle is occurring durin
lakkis [162]

Answer:

The lytic cycle.

Explanation:

<u>HIV is a retrovirus</u> that has a special enzyme called transcriptase reverse, which can synthesize DNA using RNA as a template. This replication system is particularly useful for the virus because the DNA synthesized from the RNA viral genome can be then integrated into the human chromosomes and stay inactive for years. This is called a lysogenic cycle and is characterized by a latency of the virus and an integration to the host DNA.

When there is a triggering event, <u>this latent virus can be excised from the human chromosome and start producing copies of itself using the host machinery.</u> <u>Then the virions are assembled and after that they lyse the host cell and release new infective units that can then infect neighboring cells. </u>This is called the lytic cycle of the virus and is the reproduction cycle that occurs when a person moves into the acquired immunodeficiency syndrome (AIDS) stage of HIV infection.

6 0
3 years ago
Can i please know the advantages and disadvantages of the complexities of life ​
Cloud [144]
? What grade your in
6 0
3 years ago
Other questions:
  • How are natural areas different from rural areas
    5·1 answer
  • What are some facts about queen angelfish
    6·2 answers
  • Which of the following statements regarding the digestive system is correct?
    14·1 answer
  • Incineration of solid waste is controversial. do you support solid waste incineration in general? would you support an incinerat
    8·2 answers
  • A couple has three offspring: one child with an autosomal dominant disease trait and two who are normal. the father is affected
    12·1 answer
  • Similarities between the jaw of a carnivore and that of a herbivore
    13·2 answers
  • which of the following best explains how enzymes speed up a chemical reaction? enzymes question 3 options: can add heat to a che
    6·2 answers
  • A single-celled organism isolated from a deep-sea, hot thermal vent was found to have a cell wall but lacked a nucleus. This org
    13·1 answer
  • In epithelial tissue, what is this bottom layer called?
    5·1 answer
  • What removes oxygen from the air?
    5·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!