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Olegator [25]
4 years ago
8

Why do dogs want to sex in Spring?

Biology
2 answers:
belka [17]4 years ago
8 0
Spring is the mating season for a lot of animals. For dogs, though, they dont mainly want to mate in spring. An  dog usually goes into heat every 6 months, so it could be in any season. 
frez [133]4 years ago
6 0

Dogs have sexual intercourse mainly during the spring as the spring time is when they mostly grow and just like humans the older you get the bigger urge to have sexual intercourse

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As a persons ages his or her bones tend to become brittle. This happens as ______ is lost from bone
GREYUIT [131]

Answer:

D

Explanation: the bones can becomew brittle from not haveing calcium

6 0
3 years ago
Calculate the volume change for respiration in the dark. As you already saw from earlier questions, oxygen production is fairly
Tatiana [17]

Answer:

-1.9mL/min

Explanation:

The rate of O₂ production can be calculated by the formula

= ( Final volume - initial volume)/time(min).

From the graph provided and attached below, the rate of O₂ production or rate of photosynthesis at light intensity of 8 is about 3.75 mL/min.  

The rate of O₂ production is taken as the rate of photosynthesis. It is expected to progressively increase from light intensity 0 as light intensity increases. However, at very high light intensity, the rate slows down as water becomes limiting and the stomata closes in order to conserve water.

Question in order

Experiment 2: Respiration in the Dark

Calculate the volume change for respiration in the dark. As you already saw from earlier questions,

oxygen production is fairly constant. You will not need to calculate the individual volume changes.

Just subtract the original volume at 00:00:00 from the final reading at 00:02:00. Record your answer

for use in a later question.

<em>Note: depending on when you started the timer there is a range of possible answers. Pick the answer that is closest to this</em>

What was the volume change for respiration in the dark?

Correct answer:

-1.9 mL/min

7 0
3 years ago
How did the Galapagos finches demonstrate the idea of closely related but different species for Darwin?
natali 33 [55]

they all evolved from the same species but they had adapted to gather food on their given island. the adaptation was in their beaks

8 0
3 years ago
The best definition of a true-breeding plant is one that ______.
Xelga [282]
True-breeding plants have offspring with the same traits when they are self-fertilized. 

Hope this helped!
5 0
3 years ago
Bacteria can make their own folic acid, which is required for nucleic acid synthesis, but humans cannot and instead have to inge
lidiya [134]

This drug inhibits the growth of bacterial cells but not human cells. This is an example of the selective toxicity of antibiotics.

Folic acid is an essential component for all cells to synthesize nucleic acids (DNA and RNA). Human cells do not synthesize folic acid and they take it through food. Bacterial cells are impermeable to folic acid and hence they need to synthesize their own folic acid.

Antibiotics target the metabolic pathway of folic acid synthesis in bacteria by inhibiting one of the enzymes in this pathway. These drugs are only toxic to bacteria but not to humans because humans do not have the folic acid synthesis pathway and hence they do not get affected by the action of the antibiotic. This is known as the selective toxicity of antibiotics.

These antibiotics are designed in a way to target the infecting agent (bacteria) while rendering minimal or no toxicity to the host (humans).

Know more about selective toxicity here :

brainly.com/question/13142849

#SPJ4

7 0
2 years ago
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