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
Alborosie
3 years ago
6

Help I don't understand it and plz get it correct for me.

Biology
1 answer:
castortr0y [4]3 years ago
3 0

Answer:

number 3 is right I think

You might be interested in
EXPERT HELP i'LL GIVE BRAINLIEST: Which TWO phrases best describe vascular tissue in plants?
nordsb [41]

Answer:

B ) Contain cells that connect to form pipes.

D ) Transport water and food.

Explanation:

Vascular tissue is a conducting tissue, meaning multiple cell types can be found. Their functions are to transport fluids and nutrients. To do this, they need cells that connect to form tube like pipes.

4 0
3 years ago
During a pertussis infection, the pathogenic bacterium Bordatella pertussis produces tracheal cytotoxin, which destroys cilia. W
fiasKO [112]

Mucus would most likely accumulate in the respiratory tract as a result of ciliary destruction.

Pertussis (whooping cough) is a highly contagious respiratory tract infection. A severe hacking cough is followed by the a high-pitched breath intake that sounds like "whoop" in many people. Before the vaccine, whooping cough was thought to be a childhood disease. Whooping cough now primarily affects children who have not received the full course of vaccinations, as well as teenagers and adults whose immunity has waned.

Deaths from whooping cough are uncommon, but most commonly occur in infants. That is why it is critical for pregnant women and others who will have close contact with an infant to be immunized against whooping cough. The best way to avoid pertussis is to get vaccinated. Check that you and your loved ones have received their pertussis vaccines.

To know more about the Pertussis, here

brainly.com/question/29436233

#SPJ4

5 0
1 year ago
A transcriptional repressor that controls the transcription of gene A is not normally active unless bound by an effector molecul
iren [92.7K]

Answer:

Increase in transcription

Explanation:

Transcription is the process of forming RNA from DNA. It can be controlled by many factors like a repressor. Repressor can bind to the operator region of the promoter and hinder the movement of RNA Polymerase enzyme, halting the process.

Here, it is given that the repressor needs to first bind to an effector molecule X. Once it binds to X, it is activated and then it can bind to operator of gene A to inhibit its transcription. If the X binding domain on repressor is mutated it wont be able to bind to X. Thus it wont get activated and wont be able to attach to operator region to inhibit transcription. Hence, transcription process will keep going on uncontrolled.

5 0
3 years ago
Cells are able to remove large amounts of material using what cell process?
ankoles [38]

Answer:

Exocytosis

Explanation:

Exocytosis is the process that allows cells to be able to remove large amounts of material in and out of themselves.

Hope this helps!!! PLZ MARK BRAINLIEST!!!

6 0
3 years ago
Unicellular prokaryotes that live one extreme environments
Ray Of Light [21]
Bacteria, archaea, fungi, algae
8 0
3 years ago
Other questions:
  • Unlike skeletal muscle action potentials, cardiac muscle action potentials __________. unlike skeletal muscle action potentials,
    14·1 answer
  • *PLEASE ANSWER* How can someone live smarter to reduce his/her carbon footprint? a.) live in a smart community b.) buy inefficie
    13·2 answers
  • What organism provides energy to the grasshopper? Which one provides energy to the hawk?
    14·1 answer
  • Where do echinoderms live?
    13·2 answers
  • According to the dichotomous key, the amoeba seen in the illustration would belong in the kingdom A) Eubacteria. B) Fungi. C) Pl
    9·1 answer
  • Dna replication<br><br> aaccagaccca<br> ttggtctgggt
    10·1 answer
  • Name
    12·2 answers
  • A bat is a mammal even though it flies in air. Why?​
    10·2 answers
  • Fossils of Glossopteris, an extinct fern, were discovered on which continents to support the theory of continental drift? Check
    9·1 answer
  • Which curve would most likely represent the behavior of the receptor once it has been activated by its signal molecule?
    12·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!