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lesya [120]
2 years ago
7

True or false? The myocardium receives its oxygen supply from the endocardium via diffusion through gap junctions.

Biology
1 answer:
DiKsa [7]2 years ago
3 0
False. The myocardium receives oxygen from the coronary arteries. Coronary arteries are found on the outside of the heart and supply oxygenated blood to the heart tissue.
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Match each field of study to the correct piece of evidence. Tiles molecular biology comparative anatomy developmental biology Pa
PilotLPTM [1.2K]
Molecular Biology
This field of study deals with everything related to macromolecules, thus, what you will need for molecular biology would be something you could get proteins and nucleic acids from. Among the choices, the DNA of a pig and a calf would be the most helpful.

Comparative Anatomy
Comparative anatomy is a field of study that focuses on any similarities or differences between the anatomy or structure of different animals or species in general. Among the options, having the limb structure of a pig and a calf would allow you to practice the field since you have a structure to compare.

Developmental Biology
In this field, your concern would be how species grow and develop. For you to properly observe the growth and development, you must have the embryo of a pig and a calf. Therefore, among the options, this is the correct piece of evidence for this field.

IN SUMMARY:
Molecular Biology - Both DNA of a pig and a calf
Comparative Anatomy - Both limb structure of a pig and a calf
Developmental Biology - Embryo of a pig and a calf
3 0
2 years ago
Identify a reason why meiosis leads to significant genetic variation while mitosis does not.
liraira [26]
Because meiosis only has half of the genes.

In mitosis, the cell produced will have an exact number of chromosome like the parent cells. But in meiosis, only half of the chromosome will be given. That will make many variations since the chromosome is split in random. The process to split the gene doesn't include a process to making it move in the same manner so the gene position can be changed in the different case.
4 0
1 year ago
In this lab, you will try to view as many cell organelles as you can at different magnification levels. Write an investigative q
aleksandrvk [35]
Organelles can have different sizes from each other. As related to the cell, they are smaller than the cell they are contained in, and at different microscope amplifications, there can be seen different organelles, more and more as the amplification increases.

An investigative question related to this could be:
What is the cell-specific organelle size relation, and the organelle X-organelle Y size relation when in different microscope amplifications.
4 0
2 years ago
Read 2 more answers
What do you think makes skin so susceptible to uncontrolled cellular growth?
mixas84 [53]
Introduction to the outer condition and conceivable cancer-causing agents and, or the fast rate of mitosis that would enable malignancy to spread rapidly. 
The skin has body securing capacities, it shields the interior organs from the introduction of the outer condition. It likewise pieces infections and other hurtful substances.
5 0
1 year ago
Read 2 more answers
In bacteria, the antibiotic erythromycin prevents ribosomes from functioning. The MOST likely reason that bacteria die from trea
svlad2 [7]

Answer:

inhibits translation

Explanation:

Bacteriostatic macrolide antibiotic produced by Streptomyces erythreus. Erythromycin A is considered its main active component. In sensitive organisms, it inhibits protein synthesis by binding to 50S ribosomal subunits. This binding process that inhibits peptidyl transferase activity and interferes with the translocation of amino acids during translation and protein assembly.

The bacteriostatic effect consists in producing the inhibition of bacterial growth; Meanwhile, immunogenesis is expected to provide the necessary defensive elements for disease control. Therefore, these antimicrobials should not be indicated to the immunocompromised patient. They act in the stationary phase of bacterial growth.

Some antibiotics have a bactericidal or bacteriostatic effect depending on whether the drug acts in vivo or in vitro, and depending on the dose administered. For example, Amphotericin B, has fungistatic effect in vivo and fungicide in vitro; Streptomycin and erythromycin have bactericidal effect when administered at high doses and bacteriostatic effect if administered at low doses.

4 0
2 years ago
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