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
Mars2501 [29]
3 years ago
12

Which of the following is true of valves in veins?

Biology
1 answer:
MAVERICK [17]3 years ago
8 0

Answer:

A

Explanation:

they are associated with venous sinuses.this valve open one way flow of direction of the heart.

You might be interested in
List and briefly describe in your own words the four main points of Darwins theory.
patriot [66]

Answer:

Individuals of a species are not identical, Traits are passed from generation to generation, more offspring are born that can survive,and only the surviovrs of the competition for resources will reproduce.

Explanation:

7 0
3 years ago
Which is an example of codominance? (1 point)
Dafna11 [192]

Answer:

roan coat color in horses

Explanation:

Codominance is one of the Non-mendelian inheritance patterns in genetics i.e. does not follow Mendel's principles of inheritance. Codominance is a phenomenon whereby an allele is neither dominant nor recessive to another in a gene i.e. one allele is not phenotypically expressed over the other. Hence, both alleles are simultaneously expressed in their heterozygous state.

An example of codominance is the roan coat color in horses where the colored (B) and white (W) alleles are both dominant in the coat color gene, hence, the horse expresses both black and white coat phenotypes known as ROAN (BW). The black and white alleles are said to be CODOMINANT.

8 0
3 years ago
Which statements are additions to cell theory, called modern cell theory? Check all that apply.
Marysya12 [62]
1.    All cells are similar in structure and function. 

2.   Cell contains hereditary information that is passed from cell to cell during cell division. 
 
3.    Living cells can be created from dead cells. All cells perform similar metabolic activities.

hope this helps
5 0
3 years ago
Read 2 more answers
What ph and temperature does a lactase enzyme supplement encounter?
mr Goodwill [35]
<span>Lactase enzymes oftentimes come into contact with body temperature entities - 37 C. Ultimately, the enzyme's activity gradually increases with temperature up until about body temperature. Optimum pH for this enzyme is 6. These values provide efficient life of the lactase enzyme.</span>
4 0
3 years ago
Question 4 (Multiple Choice Worth 3 points)
sweet-ann [11.9K]

The creation of DNA fragments with ends that can join with other DNA is achieved by the use of restrictive enzyme analysis.

<h3>What are restriction enzymes?</h3>

They are enzymes utilized in genetic engineering or gene recombination technology to cut DNA at some specific points in other to have sticky ends.

The sticky ends DNAs are able to join with other DNAs using these ends. Another enzyme (Ligase) is utilized to join the DNA back once the desired DNA has been inculcated.

More on restriction enzymes can be found here: brainly.com/question/13944056

#SPJ1

8 0
2 years ago
Other questions:
  • A person cannot see a single cotton thread 100 feet away, but if you wound thousands of threads together into a rope, it would b
    7·1 answer
  • Select all that apply. Which of the following are functions of stems?
    5·1 answer
  • What is most likely to happen during deposition?
    14·2 answers
  • What is the importance of the light and dark reactions in photosynthesis?
    10·1 answer
  • Compare and contrast the genetic material between a bacterium and a fungus. ​
    6·2 answers
  • Which of the following statements about metabolism in
    7·1 answer
  • Given the DNA sequence -- 5’ CTCTCCCCCGCGGGGGCTGTACTATCATGCGTCGTCTCGGUUAAUUU 3’ determine the mRNA sequence. (N.B. Answer must i
    12·1 answer
  • The scrotum protect the testis from what?
    8·1 answer
  • What type of disorder is sickle cell anemia
    11·2 answers
  • The correct sequence for the five phases in the systems development life cycle (sdlc) process is?
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!