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
Paraphin [41]
2 years ago
8

How does biogeography provide evidence for evolution.

Biology
1 answer:
Liula [17]2 years ago
3 0

The global distribution of organisms and the unique features of island species reflect the evolution and geological change. Fossils. Fossils document the existence of now-extinct past species that are related to present-day species.

You might be interested in
How many generations does it take for a single bacterial cell to become 256?
Brut [27]
Yur answer is 8 hope it helped
7 0
3 years ago
How are bacteria different from viruses?
koban [17]

 Bacteria can replicate themselves.

6 0
3 years ago
Read 2 more answers
Identify the true statements about RNA interference. Duplex RNA (dsRNA) can suppress the expression of a gene. miRNAs are short,
AlekseyPX

Answer:

- Duplex RNA (dsRNA) can suppress the expression of a gene.

- miRNAs are short, single strands approximately 21 nucleotides long.  

- miRNAs suppress gene expression by interfering with transcription.  

- RNA interference can temporarily suppress the expression of a target gene.

Explanation:

The RNA interference (RNAi) mechanism is a naturally occurring biological process by which an organism suppresses gene expression by using sequence-specific small non-coding RNAs that are complementary to RNA (posttranscriptional silencing) or DNA (transcriptional silencing) sequences. Since its discovery, this mechanism has been exploited in molecular biology to control the expression of target genes. There are different classes of non-coding RNAs which are able to trigger RNAi gene silencing: microRNAs (miRNAs), small interfering RNAs (siRNAs), piwi-interacting RNAs (piRNAs, only present in animals), etc. During their functioning, these non-coding RNAs are loaded into the RNA-induced silencing complex (RISC) to direct them to target sequences and trigger RNAi (for example, by cleaving target mRNAs). miRNAs are short, evolutionary conserved RNAs, that associate to the RISC complex in order to trigger both transcriptional and posttranscriptional gene silencing. During their biogenesis, small non-coding RNAs are double-stranded RNA (dsRNA), but they lose a strand (the passenger strand) when associate with the RISC complex, conserving only one strand (the guide strand) that bind by complementary base pairing to target sequences (either DNA in the nucleus or RNA in the cytoplasm).

3 0
2 years ago
Dutch elm disease, which has killed millions of elm trees, is caused by a type of _____ fungus.
Luden [163]

The answer is sac.  It is a fungi that attacks elm trees and is carried by an insect called the elm bark beetle.  It hits the roots and causes the tree to slowly deteriorate and eventually die due to lack of nutrients once it is infected by this fungi.

7 0
3 years ago
Read 2 more answers
How many autosomes in figure 1 ?
Verizon [17]
Answer is a just took test
6 0
3 years ago
Other questions:
  • Student Example
    15·1 answer
  • The most controversial technique of genetic engineering is
    6·1 answer
  • what does the global conveyor belt reveal about the connectivity of water in the oceans? how could a change in the path of the g
    7·2 answers
  • Aldosterone is synthesized from cholesterol. <br> a. True<br> b. False
    8·1 answer
  • Which organelle does the krebs cycle take place?
    7·1 answer
  • Which statements describe reverse faults? Check all that apply. The hanging wall moves up. The hanging wall moves down. The faul
    8·2 answers
  • True/ False: Substances will diffuse more rapidly through a dense substance. Explain
    13·2 answers
  • In which location are you most likely to find a Protozoan?
    13·1 answer
  • The virus known as ________ primarily infects lymphocytes.
    9·1 answer
  • After a short, high-level exposure to a toxicant, you immediately feel dizzy and nauseous. you are likely showing symptoms of:__
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!