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
Ahat [919]
2 years ago
8

Which type of environmental scientist is most likely to study how whales are affected by pollution

Biology
2 answers:
bezimeni [28]2 years ago
6 0
D) Oceanographer
Oceanographer are the scientists how study the life in water
ki77a [65]2 years ago
4 0
Oceanography bc they study on the ocean and whats going on
You might be interested in
ASAP PLEASE HURRY
luda_lava [24]

Answer:

The metamorphic rock and sedimentary rock were already at this location and magma flowed into other rocks

8 0
3 years ago
Lipids and carbohydrates differ in which of the following fundamental respects?
Schach [20]

Answer:

Carbohydrates are hydrophilic  whereas Lipids are hydrophobic.

Explanation:

Carbohydrates can be most commonly understood as hydrates of carbons. They generally contain more than two carbon atoms and are easily soluble in water, thus giving them the characteristics of hydrophilic compounds. Sugar and glucose are some of the important examples of carbohydrates.

On the other hand, lipids comprise a polar region, which attracts water and a much larger non-polar region, which repels water. This non-polar region dominates the polar region of lipid molecules thus making it a hydrophobic compound. Oils, fatty substances, steroids, and waxes are some of the important examples of Lipid molecules.

8 0
3 years ago
View the animation below, then complete the quiz to test your knowledge of the concept. conducting of the heart
valina [46]
1. In the heart, an action potential originates in the (E) sinoatrial node.
The cardiac action potential is a term referring to the change in the membrane potential of heart cells causing the heart to contract. Cardiac action potentials are created by a group of specialized cells capable of generating automatic action potentials and are located in the right atrium of the heart. These cells are called sinoatrial node and sometimes are referred to as the natural pacemaker of the heart. This characterization originates from the fact that sinoatrial node continuously provides action potential and sets the rhythm of the heart function.

2. The sequence of travel by an action potential through the heart is (A) sinoatrial node, atrioventricular node, atrioventricular bundle, bundle branches, Purkinje fibers.
As explained above, the cardiac action potential originates from the sinoatrial node. This action potential then travels through the atrioventricular node, which belongs to the electrical conduction system of the heart and is located between the atria and the ventricles. It is responsible for the electrical connection between the right atrium and the right ventricle. The action potential then travels to the atrioventricular bundle (or bundle of His), another part of the electrical conduction system of the heart. The atrioventricular bundle transmits the electrical impulses from the atrioventricular node to the bundle branches. The bundle branches then send the signal to the Purkinje fibers which send the electrical impulses to the ventricles, causing them to contract. 

3. The correct answer is A.
The generation of an action potential in the sinoatrial node causes the contraction of the atria. When the action potential passes from the sinoatrial node to the atrioventricular node, it slows down. This causes the transport of the electrical impulse from the atria to the ventricles to slow down. This delay enables the blood (from the contraction of the atria) to fill the ventricles before their contraction. 

4. This statement is true.
The interventricular septum is a structure which divides the two ventricles of the heart and it is composed of two branches, the left bundle and the right bundle branch. When the action potential reaches the interventricular septum, it then travels to the apex of the heart from where it travels upwards along the walls of the ventricles and the ventricular contraction begins.

5. This statement is true.  
The bundle branches gradually become Purkinje fibers located in the interior of the ventricular walls. Purkinje fibers are specialized cells and are responsible for conducting cardiac action potentials from the bundle branches to the ventricular walls. This signal transduction causes the muscle of the ventricular walls to contract. 
7 0
3 years ago
Describe the initial conditions.
ozzi

Answer:

1. Starch Solution

2. Lugol's Solution

3. Starch Solution and Lugol's Solution

4. Only Lugol's Solution

Explanation:

These are the answers I used and got it correct on Edgenuity. If this helped please rate 5 stars and click the thanks button. =)

5 0
3 years ago
Read 2 more answers
What is the purpose of the cell membrane?
slava [35]
Cell membrane is a thin line.it controls the movement of materials into and out of the cell. it is partially permeable,that is,it allows only certain materials to pass through.
6 0
3 years ago
Other questions:
  • What can dried blood tell an expert?
    9·2 answers
  • Which of the following terms is described as an organism’s tendency to maintain a stable internal environment?
    8·1 answer
  • When blood glucose levels are high and the glucose is not utilized for cellular respiration, the human body will store this gluc
    13·1 answer
  • What stage of mitosis do new nuclei form around the chromatin of the two new forming cells
    15·1 answer
  • Air moves from areas of high pressure to areas of low pressure? is it true or false
    13·1 answer
  • Abdullah repeatedly sees his physician for symptoms including paresthesias and "swelling" of the hands
    12·1 answer
  • What can the result be if DNA replication does not occur without errors?
    12·1 answer
  • 20 BRAINIES!! HURRY I HAVE 15 MINUTES!!! We breed some pitbulls, we have a mom who has brown hair and the dad has brown hair. Th
    7·1 answer
  • Why do you think the strand of DNA
    7·1 answer
  • The part of the eye that prevent light from reflecting internally and is heavily vascularized to deliver blood to the retina:___
    9·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!