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IceJOKER [234]
3 years ago
5

In a combustion engine, fuel is burned to produce mechanical energy. Which of the following shows that an energy transformation

has taken place?
Biology
2 answers:
erica [24]3 years ago
7 0

Answer:heat is produced

Explanation:

i just had this question

Monica [59]3 years ago
6 0

Answer:

Heat is produced.

Explanation:

Law of conversation of energy and mass these can't be created or destroyed, but can be converted to another form. The fuel/chemical energy is being converted into heat.

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tall heterozygous pea plants were crossed and the resulting seeds grown. Out of 360 plants, 270 were tall and 90 dwarf. What des
lozanna [386]

Answer:

This question lacks options, the options are:

A. All 270 tall plants were heterozygous

B. All 270 tall plants were homzygous.

C. Only 90 plants were homzygous.

D. All dwarf plants were homzygous.

The answer is D.

Explanation:

This question involves a single gene coding for height in pea plants. The allele for tallness (T) is dominant over that of dwarfness (t). This means that a dwarf plant can only be homzygous recessive (tt) while a tall plant can either be homzygous (TT) or heterozygous (Tt).

According to the question, two tall heterozygous pea plants were crossed i.e. Tt × Tt. Based on this cross, a phenotypic ratio of 3:1 is expected, which is in accordance with the 270 tall plants and 90 dwarf plants (360 total) that was obtained in the cross. Since dwarfism in pea plants is a recessive trait, this means that all the dwarf plants produced in this cross (90) were homzygous (tt).

3 0
3 years ago
The cell cycle: A) is the same length of time for all cells. B) is when a cell dies. C) is different lengths of time for differe
ahrayia [7]
I believe the answer is C) is different lengths of time for different types of cells.
6 0
2 years ago
Cholesterol is synthesized in the __________ and is the starting material for making ____________. Please choose the correct ans
lina2011 [118]

Answer:

<h2>Liver, testosterone </h2>

Explanation:

The cholesterol is an important type of organic molecule that has many important roles in organisms. It is a sterol that is also called a modified steroid. It plays an important role in the cell membrane of the organism. Generally, it is synthesized in the liver and some other parts of the body. The synthesis of cholesterol is regulated by a homeostatic mechanism. Testosterone is synthesized from the cholesterol so cholesterol acts as starting material. Testosterone plays an important role in the development of the reproductive tissues of the male.

5 0
3 years ago
Organisms reproduce following several patterns. Some organisms produce few offspring and provide parental care. Other organisms
matrenka [14]
I believe it would be g Rats
5 0
3 years ago
Read 2 more answers
30 POINTS AND BRAINLIEST
tatiyna

Answer:

i think the answer would be d

Explanation:

5 0
3 years ago
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