BIOLOGY HIGH SCHOOL

Are enzymes in saliva a example of a structural adaption or physiological?

Answers

Answer 1
Answer:

Answer:

structural adaptation
Answer 2
Answer:

Answer:

Adaptational

Explanation:

It needs to adapt to the different variety of food and drinks.

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Includes parenchyma, collenchyma, and sclerenchyma

Answers

The answer is ground tissue.

Plants have 3 types of tissues - dermal, vascular, and ground tissue. Ground tissue includes parenchyma, collenchyma, and sclerenchyma. 
Parenchyma has a role in photosynthesis, storage. It also makes the bulk of ground and vascular tissue.

The function of sclerenchyma and parenchyma is support and strength of roots, stems, and leaves.

Peristaltic waves are ________.A. segmental regions of the gastrointestinal tract
B. churning movements of the gastrointestinal tract
C. pendular movements of the gastrointestinal tract
D. waves of muscular contractions that propel contents from one point to another

Answers

Answer:

Option (D).

Explanation:

Peristaltic movements are involuntary movement occur due to the longitudinal and circular muscle.Peristaltic waves helps in the passage of food from one point to another during the process of digestion.

Peristaltic waves occur mainly due to muscular contraction. These contractions propel the contents from one location to another. These waves occur in stomach, intestine and esophagus.

Thus, the correct answer is option (D).

Peristaltic waves are waves of muscular contractions that propel contents from one point to another. Therefore, the option is D.

The waves of muscular contractions known as peristaltic waves are responsible for moving materials from one location to another. They are in charge of the transportation of food through the digestive system from beginning to end.

Therefore, peristaltic waves are waves of muscular contractions that propel contents from one point to another

Learn more about peristaltic waves, here:

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Some proteins on the surface of a mammalian cell contain carbohydrates. These proteins are synthesized by _______ and the sugars are added in the _______.a) cytoplasmic ribosomes; smooth endoplasmic reticulum

b) the Golgi apparatus; rough endoplasmic reticulum

c) ribosomes on the rough endoplasmic reticulum; Golgi apparatus

d) mitochondrial ribosomes; smooth endoplasmic reticulum

e) cytoplasmic ribosomes; plasma membrane

Answers

Answer:

c) Ribosomes on the rough endoplasmic reticulum; Golgi apparatus

Explanation:

Endoplasmic reticulum, a member of endomembrane system. If it contains ribosomes on their surface, they are called Rough Endoplasmic Reticulum (RER). RER is the site for protein synthesis.

Newly formed protein undergoes modification, one such modification is the addition of carbohydrate side chains to form glycoprotein. The protein then moves to the Golgi for modification.    

What type of isolation occurs when the timing of reproduction is different between two populations?A. geographic
B. temporal
C. behavioral
D. selective

Answers

im pretty sure behavioral since isolation is kind of a trap thing so i guess it affects your behavior 

]Which of these statements best explains the origin of life on Earth? Primitive plants were created from living molecules.

Plant cells were formed by the destruction of fossils in rocks.

Non-living molecules were transformed into bacteria by chemical processes.

Reproducing molecules evolved into living molecules by biological processes.

Answers

The statement which best explains the origin of life on Earth is that reproducing molecules evolved into living molecules by biological processes.
RNA is the precursor of all life on Earth, and today's life descends from RNA world.

Answer:

it is option d

Explanation:

Tropical areas receive the most solar radiation because A. the Sun's rays are nearly perpendicular to Earth's surface.
B. the air is thinner, causing more of the Sun's rays to reach the surface.
C. most tropical areas are situated at higher elevations, closer to the Sun.
D. they're surrounded by large bodies of water which reflect sunlight.

Answers

Answer;

A. the Sun's rays are nearly perpendicular to Earth's surface.

Explanation;

-Tropical region receives more solar radiation not only because the Sun’s rays hit the region more directly, but also because they travel through less of the atmosphere to get there.

-Some radiation is absorbed as it travels through the atmosphere, so less energy is lost in tropical regions.

Is D most tropical areas are situated at higher elevations, closer to the sun
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