Omar wrote a hypothesis about batteries called dry cells.If more dry cells are connected end to end, a light bulb will work longer because there is more energy available.

What are the variables in his hypothesis?

Answers

Answer 1

Answer: The hypothesis is
If more dry cells are connected end to end, a light bulb will work longer because there is more energy available.

The variables are
the number of dry cells connected end to end
the duration of the light bulb working

Answer 2

Answer:

Answer:

The answer is not c I believe it is A

Explanation:

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Two snails in the same class must also be in the same(A) order.
(B) species.
(C) genus.
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Answers

I think the answer is b as in boy.

Many plants have a waxy cuticle to prevent them from losing water. This is made ofA. lipids.
B. nucleic acids.
C. carbohydrates.
D. protein.

Answers

The waxy cuticle of plants are made of (A) lipids and also hydrocarbon polymers which give it the waxy, protective structure.

Answer: A. Lipids

Explanation:

I just took the test, and the answer is lipids!

Good luck!

Which of the following statements is false? A.)Sunlight is the energy source for plant photosynthesis.
B.) Chlorophyll is contained in organelles called chloroplasts.
C.) A by-product of photosynthesis is carbon dioxide.
D.)Roots have tiny root hairs that maximize the plant's ability to absorb water.

Answers

C.) A by-product of photosynthesis is carbon dioxide. This Is the correct answer. A by-Product of Photosynthesis Is Oxygen.

Which was one of the first animals to develop a true body cavity?

Answers

The answer is mollusks and annelids.

Coelomates are animals which body cavity (coelom) is filled with fluid. Fluid surrounds organs, protects them and allows their free movement and growth. All vertebrates and some invertebrates, such as mollusks, annelids, and arthropods, are coelomates.

Under certain circumstances, glycolysis takes place anaerobically, in the absence of oxygen. When this happens, which of the following products may be produced? lactate ethanol carbon dioxide acetyl CoA

Answers

Answer:

Lactate, ethanol and carbon dioxide can be produced.

Explanation:

Glycolysis can takes place anaerobically in case of limited supply of oxygen and in absence of oxygen. Special enzymes are required for the anaerobically glycolysis to occur under the special circumstances.

The limited supply of oxygen, the glycolysis produce lactate as the major product. The absence of oxygen condition is responsible fior the production of ethanol by the glycolysis. Carbon dioxide is produced as the by product during both the cases.

Thus, the correct answer is ethanol, carbon dioxide and lactate.

The ____ of the octopus is at its center, where its arms meet. a. orifice
b. indenture
c. cerebration
d. effrontery