All categories

3 years ago

How could this statement be revised to make it a hypothesis?

2 answers:

8 0

Well, the correct response would be C. Because the other 2 options are not really testable as they refer to plants having fish meal, or simply the fact that fish meal is better will be more beneficial to the plant and or will not hire

VARVARA [1.3K]3 years ago

5 0

I believe the answer is : c.)Plants that are fertilized with fish meal will grow taller than plants that receive artificial fertilizer.

When making a hypothesis, you should try to make the variable as clear as possible. The word "better" is not specific, so it would be hard to know what aspect you want to research. It also better to separate the hypothesis and not combining two hypothesis together like option A and option B. You can identify the independent variable clearly in option C .

You might be interested in

- An organism is a life form consisting of one or more

Mandarinka [93]

Answer:

cells

Explanation:

All organisms are composed of one or more cells

6 0

3 years ago

Which of the following represents organisms in a food chain?

Lisa [10]

Answer: c seeds, mice, snakes

Explanation:

a hawks, owls, eagles NO

These animals all eat some form of meat, and they are on the top of all of their food chains. If you put these animals in a room with no food, there'd be no food chain, and they would got out at each other until there was one left, and there'd be no advatanges because 1. they can all fly and 2. they are all top consumers. The same thing goes for D except hyenas can't fly.

b deer, rabbits, cows NO

This is not a food chain because all of the animals are herbivore, so they only eats plants and will not eat each other.

c seeds, mice, snakes YES

The seeds are a producer which is to be eaten by a consumer (the mouse), and which are then eaten by the predator, the snake.

d hyenas, vultures, crows NO

Hope this helps, now you know the answer and how to do it. HAVE A BLESSED AND WONDERFUL DAY! As well as a great Valentines Day! :-)

- Cutiepatutie ☺❀❤

7 0

3 years ago

List which fact goes under photosynthesis both or cellular respiration

iVinArrow [24]

Answer:

2. compounds: h2o, o2, c6 h12 o6, co2

Explanation:

2. compounds: h2o, o2, c6 h12 o6, co2

6 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

Scientists always prove or disprove their explanations by _____.

Amanda [17]

Correct answer: A). Gathering evidence

The scientific explanation uses measurements and observations in order to explain something in the natural world. The Scientist uses the scientific method to collect evidence in the experiment that is related to the hypothesis.

They can gather the evidence by just observing the natural world and its phenomena or by performing an experiment in the laboratory or by running a model.

Hence, the correct answer would be option A.

4 0

3 years ago