Answer:
Pericardial sac has protective tole
Explanation:
Pericardial sac or pericardium is a fibrous tissue that surrounds the heart. It has two coats:
- the outter coat-parietal pericardium
- the inner coat-visceral pericardium or epicardium which is double-layered and contains pericardial fluid between those two layers (pericardial fluid is necessary as a lubricant for the heart movement).
Besides lubrication, percardium also protects heart from infections, fixes it and limits its movements.
Which is true about enzymes is: enzymes increase the rate of reactions by lowering the activation energy barrier.
Enzymes are chemical compounds in the form of proteins that act as biocatalysts which function to speed up reactions.
Enzymes work specifically, that is, they can only work on certain substrates by adjusting the shape of the substrate. Enzymes sensor with molecules for substrates to produce compounds through organic chemical reactions that require energy. Some of the reactions assisted by enzymes such as the breaking of large molecules into small ones or the binding of molecules into new molecules. Enzymes can do that because of the influence of the activation energy that every chemical reaction has.
Activation energy is the energy required to break down the reactants. The role of enzymes is to lower the activation energy limit needed to start reactions.
Learn more about enzyme at:
brainly.com/question/17320375
#SPJ4
Answer:
in which topic or what is it related to by the way
Answer:
C. Plants produce chemicals to deter herbivores. Bitter cassava stores toxic compounds in its tissues. Bitter cassava should incur less damage, and therefore have higher yields.
Explanation:
Bitter cassava are able to produce higher yield because they are less disturbed by herbivores due to the production of herbivore-deterring chemicals in their tissues, especially the tissues that are above the ground.
Sweet cassava that is not able to produce the herbivores-deterring chemicals incur damages to its tissues. These damages affect the physiological functions of the plant and thus leads to reduced yield.
<em>Options A is incorrect because herbivores can only get to above the ground tissues.</em>
<em>Option B and D are factually incorrect.</em>
The correct option is C.
