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3 years ago

11

In a bacteria growing experiment, a biologist observes that the number of bacteria in a certain culture triples every 1 hours. a

fter 5 hours, it is estimated that there are 1 million bacteria in the culture. what is the doubling time for the bacteria population? g

1 answer:

lawyer [7]3 years ago

8 0

What was the number of bacteria originally?

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How do meteorologists use isotherms and isobars?

nignag [31]

Answer:

A. To identity high- and low-pressure systems

Explanation:

Isobars are similar to the level lines on a topographic map, showing areas of similar pressure, they are also drawn in circles to represent the areas of similar air pressure over a geographical map.

Isotherms are usually displayed in color showing areas over a map that have the same temperature or are covered by a similar temperature system (heat or cold front for example).

Both are used in electronic media mostly (although in print in newspapers too), over a geographic map to position the systems.

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3 years ago

(a)The same kind of plants grown & cultivated on a large scale at a place is called_____ (b) The first step before growing c

valkas [14]

Answer:

Following the answers are given below:-

Explanation:

(a) Plants of the same type that are grown and grown at a large-scale spot are referred to as crops. They are mostly cultivated for useful products.

(b) The very first step in the growth of plants is soil time to prepare to easy way to help water infiltration, appropriate oxygenation, and soil microbial economic expansion. Soil program includes the softening and attempting to turn of plant roots through all the plow procedure. The next step in growing crops is the collection of safe crops that is performed for some time by placing the seed in a water-filled flask.

(c) Infected seeds are lighter and hollow in strength and therefore rise at the top of the atmosphere. The good seeds calm down a bit at the edges, becoming heavier, which is used for sowing.

(d) Sunlight, water, and nutrients are essential requirements for seed germination and seedling growth. Seed seeding to the right depth and adequate spacing among seeds and seedlings confirm that these criteria are fulfilled.

(e) The principal Kharif crops in India are corn, maize, and cotton.

(f) individuals are used for producing plant manure.

(g) A combination of calcium acid phosphate and calcium sulfate formed by processing sulfuric phosphate stone: used primarily as a phosphate.

(h) Vegetables and lean meats are the two major categories of commercial grain crops. The word applies primarily to seeds from family Fabaceae plants, such as wheat, corn, and rice; seeds of non-edible vegetation types are often referred to as "grains."

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3 years ago

Sayyid drew a diagram to compare the gravitational and

Jlenok [28]

Gravitational: A.is attractive only

Electromagnetic: C.attracts and repels

Both: D.has an infinite range

Explanation:

The two forces mentioned in this problem are:

- Gravitational force: this force is the force that is exerted between any object with mass. The magnitude of the force is given by

$F=G\frac{m_1 m_2}{r^2}$

where

G is the gravitational constant

m1 and m2 are the masses of the two objects

r is the distance between the objects

This force is always attractive and it has an infinite range.

- Electromagnetic force: this is the force exerted between electrically charged objects. The magnitude of the force is given by

$F=k\frac{q_1 q_2}{r^2}$

where

k is the Coulomb's constant

q1 and q2 are the charges of the two objects

r is the distance between them

This force is attractive when the charges have opposite sign and repulsive when they have the same sign. It also has an infinite range.

Therefore, we can conclude that:

Gravitational: A.is attractive only

Electromagnetic: C.attracts and repels

Both: D.has an infinite range

Learn more about gravitational and electromagnetic force:

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3 years ago

Read 2 more answers

The primary organic source of energy for living things are

GarryVolchara [31]

The sun is the primary source of energy for living things mostly organisms like plants and ecosystems. But if you're talking about the bonds inside organic molecules, which are carbohydrates. With this, the energy from the sun gets trapped within a chemical bond and still relates to photosynthesis in plants.

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3 years ago

Why is ability to adjust conclusions were necessary important to critical thinking

Zinaida [17]

When new information leads to new and different conclusions, it is important to be able to adapt to the most up-to-date conclusions. If conclusions are rigid and fixed regardless of any new information that may come to light, then they are not truly based on the facts under discussion.

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3 years ago