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Goshia [24]
2 years ago
15

4. Two snails and two Elodea sprigs are placed together in a tube containing a bromothymol blue solution. The tubes are put into

a dark closet. After 24 hours, what
will the color of the water be in tube A?
O A Green (it won't change)
O B. Yellow
OC Blue
O D. Colorless (clear)
Biology
1 answer:
puteri [66]2 years ago
6 0
Blue because once it is left over night the color will eventually dissolve.
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If a sudden outbreak of disease severely reduced the number of coyotes in an ecosystem very rapidly, what might the resulting ch
Nikitich [7]

Answer:

Over population

Explanation:

With the coyotes gone, they're prey will have little to no predators. Without their numbers decreasing as quickly (because of the coyote population drop) they will be able to repopulate quicker and less of them will die. This will lead to over population.

6 0
2 years ago
What would be direct consequences from decreasing angiosperm biodiversity? Select all that apply. extinction of animals balancin
love history [14]

Answer:

reduction in potential medicines

reduced food supply

Explanation:

The direct consequences of a decrease in angiosperm's biodiversity is a reduction in potential medicines and food supply.

Angiosperm biodiversity (the flowering plants) act as a source of food to several living organisms, including human. This is evident in the practice of farming by humans. Different categories of consumers in the ecosystem depends largely on flowering plants for their food either directly or indirectly.

They also serve as a source of medicine. For example, chloroquine which use to be the major drug against the treatment of malaria was extracted from a flowering plant known as <em>Chinchona pubescens.</em>

<em>Several species of flowering plants remains in the wild whose usefulness are yet to be researched. They represent a source of future food and medicine for man and animals.</em>

<em>Hence, if the diversity of flowering plants is reduced, it is going to have direct consequence of reduction in potential foods and medicine.</em>

3 0
2 years ago
Mason drew the cladogram shown. Which statements best describes the cladogram? Select three options. (HURRY I WILL MARK BRAINLIE
Yuki888 [10]

Answer: Correct options B, D and E.

Explanation:

In the cladogram, we can see that in the first branch we have a division, one branch goes to fish and the other goes to a division (a division means a common ancestor)

Then the fish are the most primitive (being directly related to the first ancestor)., E is true.

We also can see that between fish and birds we have 3 separations (the ancestor in common is 3 "generations" behind), and between frog and birds we have two separations (the common ancestor is 2 "generations" behind), so frogs are more closely related to birds than fish.

So D is also true.

We also can see that the only pair that has only one ancestor in common are birds and reptiles, so the ones that are most closely related are birds and reptiles. B is also true,

7 0
2 years ago
You find a fossil that you think is about 350 million years old. You decide to use 235U to date a volcanic ash bed just below th
devlian [24]

Answer:

I would expect that the sample has only 50% of the original 235 U.

Explanation:

That is because 235 U has a half-life of 700 million years and I expect that my sample be 350 million years old. 350 is half of 700.

8 0
2 years ago
the embryos of several types of animals look very similar and develop in almost the same manner especially in the early stages w
masya89 [10]
<span>Embryos of many different kinds of animals: mammals, birds, reptiles, fish, etc. look very similar and it is often difficult to tell them apart. </span><span>
This shows that the animals are similar and that they develop similarly, implying that they are related, have common ancestors and that they started out the same, gradually evolving different traits, but that the basic plan for a creature's beginning remains the same.</span>
7 0
2 years ago
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