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katrin [286]
3 years ago
8

What environment would be least likely to grow bacteria and why? Here are your choices:

Biology
1 answer:
storchak [24]3 years ago
3 0

Answer:

3.

Explanation:

A classroom desktop is the least likely to grow bacteria because it is a relatively clean surface. The armpit of a human and a warm freshwater mud puddle are a more suitable habitat for bacteria because they are warm, and provide a relatively safe environment for them

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Which organism is the producer in the following food chain
tester [92]

Answer:

I'm going to say grass

Explanation:

Didn't post food chain but grass is a very commonly used producer.

6 0
3 years ago
We used the enzyme, taq polymerase, which is derived from the thermus aquaticus bacterium, in our pcr procedure. Why is this enz
Andre45 [30]

The use of a thermophilic DNA polymerase such as Taq polymerase prevents the denaturation of the enzyme during the heating that is important to separate the newly synthesized strand. So using this enzyme simplifies the PCR technique and increases its efficiency.

Taq DNA polymerase is highly efficient, when it reaches the optimum temperature, it becomes fully functional. It also has a half-life of over two hours (at 92°C), high amplification capacity, and it can add upto 150 nucleotides per second.  It is "special" enzyme because it comes from the bacterium Thermus aquaticus, which lives in hot springs. It is therefore thermostable even at high temperatures, while other polymerases (e.g. E. coli) are not.

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8 0
2 years ago
The number of atoms before a reaction is ________ the number of atoms after the reaction.
nevsk [136]
Matter cannot be created or destroyed. this means that the number of atoms before the reaction has to equal the number of atoms after the reaction.
7 0
3 years ago
Part 1: Cats Falling Out of Windows
xenn [34]

The way that the number of injuries per cat relate to the number of stories a cat falls is that:

  • As we examine the data about cats dropping from a given number of stories, a tendency becomes obvious. The cat sustains more wounds from story one to story eight than in the previous stories combined. Despite the fact that there are fewer injuries in the last category.

<h3>Why do cats survive after jumping off of a tall building?</h3>

High-rise syndrome describes the wounds that cats can get when they fall from a steep height, like an inside second-floor landing or balcony, out a window, down a fire escape, or when they fail to jump from a landing to a higher architectural element, like a ledge or window.

Cats may live comfortably in apartments and high-rise buildings, but we must make sure they have enough stimulation and playtime.

Therefore, According to Jim Usherwood of the Royal Veterinary College's structure and motion lab, stated that cats have long, flexible legs. "They have respectable muscle mass. Since they can jump rather well, the same muscles focus their efforts on slowing down rather than shattering bones."

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3 0
1 year ago
1. You are studying an evergreen tree that produces cones. The tree is a(n)
arlik [135]
The sporophyte produces
cones, an evergreen tree
4 0
3 years ago
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