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
Juli2301 [7.4K]
3 years ago
5

PLEASE I NEED HELP!!!!!!!!

Biology
1 answer:
Masteriza [31]3 years ago
5 0

Answer:

An increase of 3,500 J

Explanation:

Given that,

Energy added by swimmer = 12000 J

Heat removed by the surrounding = 8500 J

We need to find the total change in energy. It can be calculated using the law of conservation of energy such as :

\Delta U=Q-W\\\\\Delta U=12000-8500\\\\\Delta U=3500\ J

As the change in energy is positive, it means that there is an increase of 3500 J.

You might be interested in
Epigenetics may be defined as changes in the expression of a gene or set of genes by _______ and _______.
nataly862011 [7]

Epigenetics is the study of how DNA methylation and alterations to chromosomal proteins affect a gene or group of genes express themselves. For changes in a gene's expression, both of these are need.

In a biological process called DNA methylation, methyl groups are added to the DNA molecule. A DNA segment's activity can be altered by methylation without the sequence changing. DNA methylation usually inhibits transcription of genes when it occurs in a gene promoter.

Epigenetics literally translates to "along with changes in genetic sequence." Any procedure that modifies gene activity without altering DNA sequence and results in modifications that can be passed on to daughter cells is now included in the term. Is called Epigenetics.

Learn more about Epigenetics here

brainly.com/question/2670031

#SPJ4

5 0
11 months ago
All organisms are made of more than one cell
Nana76 [90]

That statement is false. Bacteria are single-celled organisms.

6 0
2 years ago
Read 2 more answers
Would we have the Same countries If Pangea existed? And would we look the same?explain please
Natalija [7]
I don’t think we would have the same countries. i feel like everything would be connected, like maybe a few really big countries instead of hundreds of different countries. i feel we would look different that how we already look because there would be more of different type of people around each other, resulting in mixed race reproducing.
8 0
3 years ago
Is dog breeding an art???
Law Incorporation [45]

Answer:Just because two dogs complement each other in physical appearance does not mean they will complement each other when comparing pedigrees. As spoken so well by my mentor, breeding is an art. When doing a breeding, stick to the breed standard, and strive for perfection

Explanation:

3 0
3 years ago
Im not sure what the answer is please helpppp
Zanzabum
The answer is B because the humoral immune response is mediated by antibody
5 0
2 years ago
Other questions:
  • Base your answer on the information below and on your knowledge of biology. A student designed an experiment to determine if air
    5·1 answer
  • Which is an accurate comparison Of the bases found in birds as opposed to the bases found I. Flowers? just Chose A, B, C or D
    12·1 answer
  • Animals are removed from an area. what effect would this have on the plants?
    8·1 answer
  • Which class of macromolecule does ATP belong to?
    12·1 answer
  • If you watch a star other than Polaris for two hours, how many degrees will it appear to rotate in the sky during that time?
    12·1 answer
  • In ΔABC, if the lengths of sides a and c are 8 centimeters and 16 centimeters, respectively, and the measure of ∠C is 35°, what
    15·2 answers
  • How would the introduction of a new species in an ecosystem affect the carrying capacity of
    11·1 answer
  • Individual iv-3 is born as a male affected with condition b but not condition
    5·1 answer
  • How does a ligament injury disrupt affect body tissue?
    9·1 answer
  • State the trophic level of each of the following: cow: ______________________ grass: _____________________ man: ________________
    6·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!