Some organisms, like lizards who bask in the sun, use ____________ to help regulate their ___________

In an experiment, a certain colony of bacteria initially has a population of 50,000. A reading is taken every 2 hours, and at th

Iteru [2.4K]

Answer:

1) Recursive definition: $p_n = (50,000)3^n$

2) At the beginning of the 4th interval

Explanation:

1)

The initial population of the bacteria at time zero is

$p_0 = 50,000$

Here we are told that the reading is taken every two hours; we call this time interval "n", so

$n=2 h$

And also, after every time interval n, the number of bacteria has tripled.

This means that when n = 1,

$p_1 = 3 p_0$

And when n=2,

$p_2 = 3 p_1 = 3(3p_0)=9 p_0$

Applied recursively, we get

$p_n = 3^n p_0$

And substituting p0,

$p_n = (50,000)3^n$ (1)

2)

Here we want to find at the beginning of which interval there are

$p=1,350,000$

bacteria.

This means that we can rewrite eq.(1) as

$1,350,000=(50,000)3^n$

By simplifying,

$27=3^n$

Which means that

$n=3$

However, this means that the number of bacteria is 1,350,000 after 3 time intervals; therefore, at the beginning of the 4th interval.

8 0

3 years ago

In what way is the treaty on plant genetic resources limited ?

SCORPION-xisa [38]

Answer:

The correct answer is option D. "It neglects the loss of habitat".

Explanation:

The main objective of the international treaty on plant genetic resources for food and agriculture is to achieve the conservation and sustainable use of all plant genetic resources and the fair and equitable sharing of the benefits obtained from their use. This treaty is managed by Food and Agriculture Organization of the United Nations and is applied in many countries of the world. One of the limitations of this treaty is that it neglects the loss of habitat, which can also affect the availability of plant genetic resources. The international treaty on plant genetic resources is limited to work on loss of biodiversity and management of genetic resources such as seeds.

5 0

3 years ago

A client with a complete tear of the rotator cuff in the right shoulder was given the choice between surgery and stem cell trans

kodGreya [7K]

<span>Answer: Bone marrow stem cells have been shown to generate cartilage, bone, and muscle when injected directly into the injured site

Stem cells could differentiate into the various type of cells, makes them able to regenerate part of the body that doesn't have regeneration abilities. The cell that involved the </span><span>tear of the rotator cuff would be cartilage, bone, and muscle. Stem cells could replace the damaged cells so that the muscle and joint might work better. </span>

8 0

3 years ago

Oils are generally ________ at room temperature and are obtained from ________. oils are generally ________ at room temperature

Elodia [21]

Oils are generally liquids at room temperature and are obtained from plants.
Hope this helps you;)

8 0

3 years ago

CAN SOMEONE HELP ME WITH THIS ECOLOGY QUESTION

Gre4nikov [31]

I believe the termites and flagellates have a mutualistic relationship

5 0

2 years ago

Some organisms, like lizards who bask in the sun, use ____________ to help regulate their ____________ environment.

Some organisms, like lizards who bask in the sun, use to help regulate their environment.