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Lemur [1.5K]
2 years ago
5

True or false the blue radius is perpendicular to the green chord

Biology
2 answers:
Kazeer [188]2 years ago
5 0

true or false the blue radius is perpendicular to the green chord the correct answer is : FALSE

Zigmanuir [339]2 years ago
3 0

Answer:

false

Explanation:

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The temperature of the water is about 5°C, while the temperature of the air is about 21°C.
hoa [83]

Answer:

the answer is bts zqt z=5

Explanation:

6 0
2 years ago
Organisms convert chemical energy into other types of energy in order to perform certain functions. Match each function to the t
Rama09 [41]

<u>Answer</u>: Thermal energy---->  a polar bear breaks down stored fat to increase its temperature.

Mechanical energy-------> bat emits and receives sounds to locate prey.

Electrical energy------>eel releases a current to defend itself.

Radiant energy -------->  a firefly produces a green glow from its abdomen to attract mates.

<u>Explanation</u>:

  • <em>Thermal energy</em> is the energy created in the movement of particles that leads to the production of heat and thus, the temperature increases. Since the polar bears break down fat to increase temperature, the energy generated is thermal energy.  
  • The<em> mechanical energy</em> is defined as the sum of energy of motion and   the position of an object  . Thus the energy produced by the bat to locate its prey is mechanical energy.
  • The energy associated with the production of electromagnetic radiation is<em> radiant energy,</em> thus the glow produced by fireflies is a form of radiant energy.
  • The energy produced due to the movement of electrons is electrical energy. Thus, the energy produced by an eel in the form of electric current is <em>electrical energy.</em>

7 0
2 years ago
Read 2 more answers
A vehicle's headlights should be utilized ______ to ensure the safety of the driver and of others.
gregori [183]
The answer to this question is E. all of the above.

In all of these situations, it is necessary for you to use your headlights to ensure your safety and your ability to see the road in front of you.

Hope this helps!
4 0
2 years ago
Read 2 more answers
Enolase is an enzyme that catalyzes one reaction in glycolysis in all organisms that carry out this process. The amino acid sequ
lorasvet [3.4K]

Answer:

a) The response indicates that a pH below or above this range will most likely cause enolase to denature/change its shape and be less efficient or unable to catalyze the reaction.

b)The response indicates that the appropriate negative control is to measure the reaction rate (at the varying substrate concentrations) without any enzyme present.

c)The response indicated that the enolase has a more stable/functional/correct/normal protein structure at the higher temperature of 55°C than at 37°C because the enzyme is from an organism that is adapted to growth at 55°C.

Explanation:

Enolase catalyzes the conversion of 2-phosphoglycerate to phosphoenolpyruvate during both glycolysis and gluconeogenesis.In bacteria, enolases are highly conserved enzymes and commonly exist as homodimers.

The temperature optimum for enolase catalysis was 80°C, close to the measured thermal stability of the protein which was determined to be 75°C, while the pH optimum for enzyme activity was 6.5. The specific activities of purified enolase determined at 25 and 80°C were 147 and 300 U mg−1 of protein, respectively. Km values for the 2-phosphoglycerate/phosphoenolpyruvate reaction determined at 25 and 80°C were 0.16 and 0.03 mM, respectively. The Km values for Mg2+ binding at these temperatures were 2.5 and 1.9 mM, respectively.

Enolase-1 from Chloroflexus aurantiacus (EnoCa), a thermophilic green non-sulfur bacterium that grows photosynthetically under anaerobic conditions. The biochemical and structural properties of enolase from C. aurantiacus are consistent with this being thermally adapted.

8 0
2 years ago
If there are class B mutations in the flower development genes of Arabidopsis thaliana, then determine the structures present in
kotegsom [21]

Answer:

Whorl-1- petals

Whorl-2- petals (mutant)

Whorl-3- carpels (mutant)

Whorl-4- carpels

Explanation:

ABC model of flower explains the role of various genes in the formation of a flower from the shoot. Each gene forms a particular structure of a flower in the following manner:

1. A gene -sepals. (Whorl-1)

2. A + B- Petals (Whorl-2)

3. B+ C - stamens (Whorl-3)

4. C- carpels. (Whorl-4)

If a flower lacks the B gene, the effect will be observed in the phenotype in which B gene is involved that is in the formation of petals and stamens or whorl 2 and whorl 3.

The flower will produce

whorl-1- petals

Whorl-2- petals (mutant)

Whorl-3- carpels (mutant)

Whorl-4- carpels

7 0
2 years ago
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