BIOLOGY HIGH SCHOOL

An organism may be multicellular or unicellular true or false ?

Answers

Answer 1
Answer: True, an organism may be either multi- or uni-cellular
Answer 2
Answer: i believe it is true

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What two scientists established the structure of DNA?
What is formed by cells working together?
Evolution of a species could occur as a result ofchanges in the (1) DNA in muscle cells (2) base sequences in liver cells (3) genes in an egg cell (4) number of chromosomes in a fetal bone cell
A biologist is in the process of classifying a newly discovered fungus. The observed characteristics include chitin in the cell walls and flagellated spores. To which group does the organism most likely belong?

Which of the following best defines soil texture? A. amount of nutrients in the soil
B.depth of the soil
C.a measure of how developed a soil is
D.the relative amounts of sand, silt, and clay particles

Answers

The answer is  D. the relative amounts of sand, silt, and clay particles.
It's the answer C.a measure or how developed a soil is.

A solution tested in the laboratory shows pH 14. Which of the following statements best describes this solution? A. It is a highly acidic solution with a high hydrogen ion concentration. B. It is a highly alkaline solution with a high hydrogen ion concentration. C. It is a highly basic solution with a high hydrogen ion concentration.

Answers


C. acids have a pH of 0-6.9

Bases have a pH of 7.1-14

What functions do endocytosis and exocytosis carry out for the cell?

Answers

Endocytosis and exocytosis are transport processes used by all cells to move particles that cannot pass through the membrane passively. Endocytosis moves particles into the cell by engulfing it with its membrane while exocytosis is mainly the opposite of endocytosis which pushes molecules out of the cell. Both endocytosis and exocytosis functions by regulating nutrients and waste for normal cell life and function.
Endocytosis uses vesicles to move there particles into the cell.

Exocytosis is basically the reverse of endocytosis. A substance is released from the cell through a vesicle

Proteins may act as buffers because the free carboxyl group can release hydrogen ions. A) The free carboxyl group can combine with hydrogen ions.
B) The free carboxyl group can act as a base.
C) The free amino group can release hydrogen ions.
D) The free amino group can act as an acid.

Answers

Answer: a. The free carboxyl group can combine with hydrogen ions.

Explanation:

Hopefully this helped :)

Answer:

The answer is A.

In the 1940s and 1950s, scientists did experiments to determine the molecule responsible for heredity. Their experiments demonstrated that the molecule that encodes and transmits information in organisms is A. DNA.
B. glucosamine.
C. insulin.
D. vitamin D.

Answers

The molecule responsible for heredity, which encodes and transmits information in organisms is DNA. Therefore, the correct statement is option A.

What are the positive impacts of the discovery of DNA?

In the 1940s and 1950s, scientists such as Avery, MacLeod, McCarty, Hershey, and Chase demonstrated that DNA was the genetic material. When DNA was damaged, the genetic information was not passed on, and also when DNA was introduced to a cell, it could change the characteristics of the cell.

This discovery was a breakthrough, and also led to the development of new technologies, which allow scientists to manipulate or modify DNA for other applications.

The discovery that DNA explained how genetic information is inherited from one generation to the next generation. This discovery also leads to important breakthroughs in medicine, agriculture, and biotechnology by developing treatments for genetic diseases and creating genetically modified crops.

Therefore, DNA is the molecule responsible for heredity, which encodes and transmits information in organisms.

Learn more about DNA here:

brainly.com/question/264225

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The answer to your question is A.  The molecule responsible for heredity is DNA.

How many atp are produced in anaerobic respiration?

Answers

Anaerobic respiration that is way way less effective and produces only 2 ATP molecules, while aerobic creates 38.
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