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
rosijanka [135]
3 years ago
7

What is the double layered sac that surrounds the heart

Biology
2 answers:
sashaice [31]3 years ago
8 0
The pericardium is the double layered sac
Airida [17]3 years ago
3 0
The double layered sac surrounding the heart is the pericardium
You might be interested in
Where in the continent of russia is vitamin d missing?
Blababa [14]
To estimate the prevalence of vitamin D deficiency (25(OH)D) <50 nmol/L among recently arrived immigrants from Africa and Asia in Oslo, and to explore 25(OH)D levels according to origin, gender and age.
3 0
3 years ago
BRAINLIESTTTT ASAP!!!<br><br> What roles do society, politics, and economics play in science?
ser-zykov [4K]
So what roles do society, politics, and economics play in science?Economics determines how much money is available to fund scientific research. Certain federal grants come directly out of the national economy, which determines if certain research projects can continue or are cut off.Politics affect science by passing some bills that directly affects science, congressmen can determine whether those funds from the economy will be used for research or not. Just a side note: wealthy lobbyists control alot of what politicians do, by donating millions into their election campaigns. Society affects science by our citizens democratically electing those politicians that we think will or will not endorse scientific research projects. For example, embryonic stem cell research has been under fire by conservatives for taking future babies' cells to study. Liberals, however, tend to be in favor of change and new advances scientifically
_____________________________________________________________

if you need it shorter "Society, made up of the country's citizens, can influence science by electing politicians (president and congressmen); the politicians can then affect the economic funding of scientific research, either by increasing or decreasing government grants to scientific projects."
7 0
3 years ago
Part A - Modification of chromatin structure Which statements about the modification of chromatin structure in eukaryotes are tr
Salsk061 [2.6K]

Answer:

Some forms of chromatin modification can be passed on to future generation of cells

Acetylation of histone tails in chromatin allows access to DNA for transcription

DNA is not transcribed when packaged tightly in a condensed form

methylation of histone tails can promote condensation of the chromatin

Explanation:

chromatin modifications that can be passed on includes epigenetic modifications that are heritable changes made to the chromatin structure that does not involve the DNA sequences. Some epigenetic modifications include DNA methylation and Histone modifications. examples of histone modification include acetylation, methylation, phosphorylation, ubiquintylation etc. All these function either in allowing the DNA become more accessible to transcritional factors or vice versa. for exmple, histone tail acetylation encourages unwounding of nucleosomes allowing transcriptional factors to have access to the DNa while histone tails methylation further tightens the nucleosomes promoting condensation of the chromatin.

5 0
3 years ago
In carrier pigeons there is a rare inherited condition that causes the death of the chicks before hatching. In order for this di
blondinia [14]

Answer:

1. are heterozygous for the disease.

Explanation:

<em>Since the disease causes the death of chicks before hatching, it means that those with the disease cannot be found in the population. In order for the allele of the disease to be passed from generation to generation, there must be parent birds that are carrying the disease in heterozygous state.</em>

Option 1 is the correct option.

7 0
2 years ago
Name a common product that contains a base
Zielflug [23.3K]

Answer:

one of em is Laundry Detergent

8 0
3 years ago
Read 2 more answers
Other questions:
  • Birds have ________ and not teeth.<br> a. jaws<br> b. molars<br> c. beaks
    9·2 answers
  • A client is prescribed prolonged bed rest after surgery. which complication does the nurse expect to prevent by teaching this cl
    15·1 answer
  • What is the sign finance of an AUG codon
    13·1 answer
  • Some types of syrup are almost entirely made of glucose molecules. If a person ate some syrup like this, what would happen to he
    10·1 answer
  • Which of the following is an example of codominance?
    13·1 answer
  • Hemophilia is an X-linked recessive disorder.
    11·2 answers
  • I include bases guanine, cytosine, and adenine.<br><br> DNA ONLY <br> RNA ONLY <br> DNA AND RNA
    7·2 answers
  • What is the water table?
    12·1 answer
  • 6. In the gene pair Tt, the symbol T represent
    11·1 answer
  • True or false: autosomes are sex chromosomes
    13·2 answers
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!