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
Leni [432]
3 years ago
13

In which organism does the respiratory system bring air directly near all the body's cells so that the circulatory system is not

a main transporter of oxygen to the cells? A. tree frog B. mosquito C. shark D. lion
Biology
2 answers:
Artemon [7]3 years ago
8 0
A. Tree , because trees release oxygen through photosynthesis
Artist 52 [7]3 years ago
3 0
A.tree we release carbon dioxide nd the trees absorb it and produce oxygen
You might be interested in
What phase does not occur between meiosis I and meiosis II, which results in haploid daughter cells?
sattari [20]

Answer:

A. Interphase

Explanation:

Interphase happens to the cell before meosis 1.

7 0
2 years ago
Read 2 more answers
Circular rings of smooth muscle that can contract to regulate the movement of food through the gastrointestinal tract are called
yaroslaw [1]

Answer: Sphincter muscles

Explanation:

The circular rings of smooth muscles, that can contract to regulate the movement of the smooth muscles that can contract to regulate the movement  of food through the gastrointestinal tract are known as sphincter muscles.

These two layers are outer layer and inner layer. The outer layer is longitudinal and the inner layer is circular. They contract rhythmically to squeeze food.

4 0
3 years ago
What’s the difference between CAM plants, C3 plants and C4 plants??
Degger [83]

Answer:

C3 photosynthesis produces a three-carbon compound via the Calvin cycle while C4 photosynthesis makes an intermediate four-carbon compound that splits into a three-carbon compound for the Calvin cycle. Plants that use CAM photosynthesis gather sunlight during the day and fix carbon dioxide molecules at night.

Explanation:

5 0
3 years ago
Which of the following lists steps of mRNA production in eukaryotes in the correct order?A) 5' cap addition, addition of poly-A
Assoli18 [71]

Answer:

The correct answer is B) Transcription, 5' cap addition, addition of poly-A tail, exon splicing, passage through nuclear membrane.

Explanation:

The transcription process in eukaryotes takes place in the nucleus of the cell and after transcription post-transcriptional modification also takes place in the nucleus which is necessary to guide the mRNA out of the nucleus.

First, the process of transcription takes place in which DNA is transcribed to mRNA by an enzyme called RNA polymerase. After transcription post-transcriptional modifications takes place in the given order.

1. Capping: In capping process 7-methylguanosine is added by capping enzyme at 5' end of mRNA.

2. Polyadenylation: In polyadenylation, many poly-A residues are added at the 3' end of the mRNA called the poly-A tail.

3. Intron splicing: Introns are the non-coding sequence present in mRNA which are spliced out of mRNA and all exons are joined together.

After these post-transcriptional process, the mature mRNA is transported out of the nucleus through the nuclear membrane.

5 0
3 years ago
An algal bloom in a water system is most likely caused by?
Serhud [2]
(A) A large amount of nitrates in the water :)
7 0
3 years ago
Other questions:
  • how might a variation in speed among individuals of a shark species affect the population of that species
    10·1 answer
  • How dose one determine when an ecosystem is in balance
    6·1 answer
  • What are Surface ocean currents generated mostly by?
    5·2 answers
  • Aflatoxin is:_________
    6·1 answer
  • what are the methods used in biodegrable waste managment? plz amswer i will give brainliest if u answer im using my last points​
    13·2 answers
  • What are three sources of signals related to the regulation of cell growth and division?
    5·1 answer
  • Greg is telling his teacher how a cell is like a house. Which part of a cell is like the air in Greg's house?
    6·1 answer
  • The number of phenotypes produced for a given trait depends on
    11·2 answers
  • Pls help!!! only correct answer!!!!!!!! 3 or more sentences. Brainiest!!!!!!!!!!!!!!
    6·1 answer
  • When the gene encoding a certain cytoskeleton protein is deleted, the resulting mutant cells round up and do not form their norm
    15·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!