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forsale [732]
3 years ago
6

Dolphins (which are mammals) and sharks (which are fish) have stiff dorsal fins projecting from their backs that help them maneu

ver through water. these structures are best described as
Biology
1 answer:
mezya [45]3 years ago
8 0
Answer:  "analogous features" .
______________________________________________________
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Freddy mixed 10 g of a powdery substance with 200 g of an acid solution. A bubbly solution weighing 205 g was formed. Which best
inysia [295]
Option 3; the other grams were realeased as a gas
7 0
3 years ago
Design an experiment where you would determine how quickly lactaid works to break down milk sugar
xxMikexx [17]

Answer:

Gather 11 Cups And then fill each cup with 5 ounces of whole milk, next is take the first cup to add a known quantity of lactaid. As A Control take another cup and do not add any lactaid. After 1 Minute, pour a known quantity of benedicts into cups of milk. Record the colour ( blue is the least amount of glucose progressing to green, then yellow, orange, red and brick/red brown). Take another cup of milk and then add the lactaid and wait for 5 minutes... Next is add the benedicts. Record the color, repeat steps 7 - 10 adding 5 minute each time until there are no cups left ( 15 minutes, 20,25,30,35,40,45) .

For the last is graph the data and forms conclusions ..

  • This is the right answer.
  • Hope it helps.
6 0
2 years ago
Whar aspects of these species wings show homology homoplasy?
professor190 [17]
<span>Birds and dinosaurs show homology because they are closely related, such as pigeon and tendon. They have different types of wings, but birds have evolved from dinosaurs. Unlike other species such as insects, which can be a homoplasy or a homology. This is due to its world and complexity.</span>
7 0
3 years ago
6. species Closely related of orchids never mate in the wild because they bloom at different times. This is an example of ______
Dimas [21]

Answer:

temporal reproductive isolation

Explanation:

The correct answer would be temporal reproductive isolation.

<u>Reproductive isolation</u> generally refers to series of biological mechanisms or processes that prevent members of different species from mating/fertilization or prevent the product of their mating to be invalid.

Some reproductive isolation processes prevent members of different species from mating or prevent fertilization as a result of mating. These processes are known as pre-zygotic reproductive isolation mechanisms.

Some other processes ensure that the product of fertilization (when it occurs) is invalid. These are known as post-zygotic isolation mechanisms.

<em>A good example of the pre-zygotic reproductive isolation process is </em><em>when closely related by different species bloom at different times</em><em>. This will prevent mating or cross-pollination to happen between the different species. This is known as temporal reproductive isolation.</em>

5 0
2 years ago
When conducting a biology investigation why is it important to note the safety rules and symbols
Free_Kalibri [48]
To avoid any injuries or emergencies <span />
3 0
3 years ago
Read 2 more answers
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