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Snowcat [4.5K]
3 years ago
12

Annie wants to study the effect of gkucose on bacterial colonies. She grows two coloniesof bacteria-one with glucose present in

the enviornment and one in an enviornment without glucose. Categorize the statements about the experiment as either hypotheses or observations.
Biology
1 answer:
Sergeu [11.5K]3 years ago
3 0
Both statements about the experiment are observations.
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Selective breeding happens
eduard

Answer:

Selective breeding is the process by which humans use animal breeding and plant breeding to selectively develop particular phenotypic traits by choosing which typically animal or plant males and females will sexually reproduce and have offspring together.

Explanation:

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Which is the best explanation for how air masses move across the United States
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Warm air rises, expands, then cools. As cool air sinks it may cause precipitation. Some air masses such as the MT which originate in warm environments carry humid air and cause heavy precipitation in some areas.
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A cell's digestive enzymes are closed in a membrane-bound organelle. How can these molecules function in the cell?
leva [86]
<span>The membrane bound organelle you refer to is the Lysosome. The lysosome fuses with a vacuole where it digests the contents. </span>
6 0
4 years ago
Which statement about DNA is NOT correct?
drek231 [11]

Answer:

B (2nd Option): DNA is single-stranded

Explanation:

A is correct: DNA is indeed found in the nucleus of eukaryotes.

B is incorrect: Although there can be single strands of DNA (ssDNA), DNA is usually double-stranded which is how it forms its characteristic double-helix shape.

C is correct: Deoxyribose is indeed the sugar in DNA (Deoxyribonucleic Acid)

D is correct: The two single ringed nitrogenous bases in DNA are thymine and cytosine, while the other two (Adenine and Guanine are double ringed.

Hope this helped!

4 0
3 years ago
(ANSWER IF U CAN PLEASE) Atoms, Elements, Compounds, and Chemical Bonds
Brut [27]

Answer:

Atomic Models Of Elements: Atoms consist of three basic particles: protons, electrons, and neutrons. The nucleus (center) of the atom contains the protons (positively charged) and the neutrons (no charge). ... Atoms are made up of protons and neutrons located within the nucleus, with electrons in orbitals surrounding the nucleus.

Lithium:Lithium is a chemical element with the symbol Li and atomic number 3. It is a soft, silvery-white alkali metal. Under standard conditions, it is the lightest metal and the lightest solid element. because it is present in trace amounts in virtually all rocks.

Florine:Fluorine is a chemical element with the symbol F and atomic number 9. It is the lightest halogen and exists at standard conditions as a highly toxic, pale yellow diatomic gas. As the most electronegative element, it is extremely reactive, as it reacts with all other elements, except for argon, neon, and helium.

Electron:Electron is a free and open-source software framework developed and maintained by GitHub. It allows for the development of desktop GUI applications using web technologies: it combines the Chromium rendering engine and the Node.js runtime.

Neutron:The neutron is a subatomic particle, symbol n or n⁰ , which has a neutral charge, and a mass slightly greater than that of a proton. Protons and neutrons constitute the nuclei of atoms.

Proton:A proton is a subatomic particle, symbol p or p⁺ , with a positive electric charge of +1e elementary charge and a mass slightly less than that of a neutron. Protons and neutrons, each with masses of approximately one atomic mass unit, are jointly referred to as "nucleons".

Explanation:

I Tried To Do My Best :DDD

6 0
2 years ago
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