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svet-max [94.6K]
2 years ago
7

A scientist in which field would be most likely to study changes in mood with age?

Biology
1 answer:
frutty [35]2 years ago
8 0

Answer: a psychologist

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A burdock is a weed. The seed heads of the weed are burrs with hooked tips. These tips catch on cows, deer, or even people as th
Aleks04 [339]

Answer:

COMMENSALISM

Explanation:

The interaction of organisms with one another in an ecosystem is called SYMBIOSIS, if it involves two organisms of same or different species. One type of symbiotic relationship is COMMENSALISM, which is a relationship in which one organism benefits while the other neither benefits or gets harmed.

This is the case of the burdock weed and its association with cows, deers or people. The burdock weed benefits from the relationship by getting Its seeds that attaches to the cow's, deer's or human's skin via its hooked-tip burrs, transported to varying locations. Thus, helping to spread the plant. The cow, deer, or human does not benefit fron this relationship neither is it harmed.

5 0
2 years ago
Which is a purpose for which a pedigree chart might be prepared? to determine the gender of a fetus to determine if a fetus has
Anarel [89]
The purpose for which a pedigree chart might be prepared is to identify the pattern of inheritance of a particular trait.
This pedigree chart is created so as to see which traits this new offspring has inherited from its ancestors and which may possibly be transferred onto a new offspring later on in its life. It is formed in order to find patterns of inheritance and see what the most important traits that get inherited are.
3 0
3 years ago
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Each muscle fiber contains tiny threads called _____, which are made of myosin and actin.
Gwar [14]
Myofibrils are the building blocks or contractile unit of each muscle fiber. The tiniest functional unit of skeletal muscle, the sarcomere, is found in the myofibrils and is made up of protein filaments: actin (thin) and myosin (thick).
7 0
3 years ago
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Explain the importance of the blood returning to the heart twice in one cycle​
a_sh-v [17]

Answer:

Explanation:

It is called a double circulatory system because blood passes through the heart twice per circuit. The right pump sends deoxygenated blood to the lungs where it becomes oxygenated and returns back to the heart. The left pump sends the newly oxygenated blood around the body.

6 0
3 years ago
What is the difference between longitudinal cross transverse and horizontal cuts?
Charra [1.4K]
Horizontal or transverse or axial cut is if you cutting the object with the horizontal plane. The cut would look like ( -- ). Vertical or longitudinal is cutting in the vertical plane. The cut would look like ( | )
<span>There is also coronal cuts which were a cut with direction from front to back. </span>
4 0
3 years ago
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