BIOLOGY HIGH SCHOOL

Which of the following can be said about the use of agriculture? A. it bears no effect on the environment

B. it prohibited The use of machinery

C. it has included practices that lead to pollution of soil and water

D. it's done the growth of civilization and development

Answers

Answer 1
Answer:

Answer: C. it has included practices that lead to pollution of soil and water

Agriculture is the practice of cultivation of economically valuable crops which are food, fibers and medicinal in origin in order to sustain humans and animal species. To increase the productivity of crops farmers or planters take different measures such as increased use of chemicals such as fertilizers, pesticides and weedicides. These chemicals although prevent the crops from disease causing pathogen, makes nutrients available for plant growth. But they contaminate the soil in which crops are growing and pollute the nearby water sources.

Answer 2
Answer: C. it has included practices that lead to pollution of soil and water.

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MIDDLE SCHOOL

Why is the synapse important

Answers

synapse are the communication between nerve cells , it helps one neuron to talk to the next neuron creating a continuous impulse

HIGH SCHOOL

What is pie like math type pie

Answers

Pi is a number- approximately 3.14
It is the circumference of any circle divided by its diameter

1. It's pi, not pie (I know they sound the same, but still.)

2. Pi is 3.14159265359 (shortened to 3.14). It's used as a random number for an algebraic equation such as 6 - 9 * (pi)

COLLEGE

Which of the following do not have cell walls: plants, animals, bacteria, or fungi?

Answers

Animals do not have cell walls.


The choice animals doesn't have cell walls. I hope i helped!

HIGH SCHOOL

Fresh foods lose nutritive value and spoil over time. People in urban areas often live far from the farms where fresh foods are grown. As a result, they can have a hard time accessing nutritious foods. Community gardens in high-density urban areas offer a solution to this problem, in that they allow people to grow their own fresh produce. Which part of this problem would community gardens most likely solve?

A. Financial cost
B. Aesthetics
C. Safety
D. Public health

Answers

Answer:

Community garden would solve the "public health" problem

Explanation:

Community garden is a land where different fruits, vegetables and other plants are grown in shared land so as to meet the kitchen requirement. In the community garden people work combinedly in order to make a beautiful as well as productive space. Community garden idea allows people to interact with neighbors and can spend some time outdoor, able to make new friends in the colony and it can help in maintaining the mental and public health.

Answer:

public health

Explanation:

just finished the test on ap.ex

COLLEGE

Researchers began a study of a cultured cell line. Their preliminary observations showed them that the cell line did not exhibit either density-dependent inhibition or anchorage dependence. What could they conclude right away?

Answers

Answer:

The correct answer will be - cells are cancerous or tumor forming cells

Explanation:

The cells show the property of differentiation, dedifferentiation and redifferentiation usually but cells which forget to differentiate and show continuous growth become cancerous.

The cancerous cells due to uncontrolled division can form a tumour in which cells lack the density-dependent inhibition or the inhibition of growth reaching the limit.  The cells also lack the property of anchorage dependence which is the ability of the cells to adhere themselves to each other and communicate.

Thus, cells are cancerous or tumour-forming cells is the correct answer.

MIDDLE SCHOOL

What are greenhouse gasses?

Answers

A greenhouse gas is a gas that absorbs and emits radiant energy within the thermal infrared range. Greenhouse gases cause the greenhouse effect. The primary greenhouse gases in Earth's atmosphere are water vapor, carbon dioxide, methane, nitrous oxide and ozone.

HIGH SCHOOL

The two basic categories of major nutrients are A. big nutrients and small nutrents.
b. macronutrients and micronutrients.
c. common and uncommon nutrients

Answers

b. macronutrients and micronutrients.

Hope this helps!
HIGH SCHOOL

In functional genomics, biologists use sequence information to identify the functions of various parts of genomes. Which of the following kinds of information could not be obtained from a genome sequence? A: regulatory sequences such as gene promoters
B: rRNA genes
C: amino acid sequences of proteins
D: noncoding repetitive repeats and intron regions
E: specific proteins that are made by a cell under particular conditions

Answers

Answer:

E: specific proteins that are made by a cell under particular conditions

Explanation:

It is only specific proteins that are made by a cell under particular conditions can't be obtained from a genome sequence. In order to get information about this protein we need proteomics.

Genome sequence gives us an idea of nucleotide sequence of DNA and RNA molecules not proteins. Regulatory sequences such as promoters, enhancers, insulators, UTRs etc. all are a part of genome, rRNA genes are part of genome sequence too, non coding repetitive repeats and intron regions are also a part of genome sequence itself so option A, B & D are incorrect. Option C is also incorrect because amino acid sequence of  proteins can also be determined by genome sequences because each nucleotide triplet which is known as codon refers to a specific amino acid. Option E is correct because by genome sequence we can easily get to know about amino acid sequence but not about specific protein which is synthesized at a particular condition.

HIGH SCHOOL

Where does the energy come from to make ATP at the chloroplast? A) From the potential energy of hydrogen ions stored inside the thylakoid
B) From photons from the sun as they strike electrons in chlorophyll
C) From the kinetic energy of hydrogen ions passing through ATP synthase
D) From the energy stored in the bonds of large glucose molecules

Answers

The correct answer is C) From the kinetic energy of hydrogen ions passing through ATP synthase

What this means simply put is that ion movement releases energy when it passes through ATP synthase

Answer:

Yup its c

Explanation:

Just did the test

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