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miskamm [114]
3 years ago
11

A dichotomous key is a

Biology
1 answer:
Anit [1.1K]3 years ago
8 0

Answer:

A dichotomous key is a tool created by scientists to help scientists and laypeople identify objects and organisms.

can i have a Brainliest plz and thank you

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PLEASE HELP ASAP IS I DON'T FINISH SOON I WONT GET TO HANG OUT WITH MY BEST FRIEND THIS WEEKEND!!!
Kaylis [27]
I'd say first question, "life changes over time".
Second question, "when there are physical similarities in the early stages of embryonic development, it suggests that each of the modern organisms once had a common ancestor".
Third, appendix.
Fourth, "they are evidence that all came from a common ancestor and that life changed over time for all these organisms to exist".
Fifth, "they all share at least 50% of the same DNA arrangement".

I might be a little late but hopefully this helps!
8 0
3 years ago
Which of the following statements about carotenoids is NOT true? Carotenoids include red, orange, and yellow pigments. Carotenoi
kvv77 [185]

       The right answer to this question is option D. Carotenoids are categorized into two major divisions: carotenes and beta carotenes

       First, let's check option A, it says that the carotenoids include red, orange and yellow pigments, that's true, we can check that on lab for example, a vegetable that can be mentioned here are carrots, it has lots of this and it's very healthy too, and remember, there isn't a single animal that can produce carotenoids, so they need to grab it from nature.

       The second option, B. says that sometimes carotenoids are sometimes called as acessory pigments, that's true too, some studies consider them acessory pigments, so, they're not alone there, there are different kinds of pigments that can be on that plant, and they're also very important for the animals. Option C refers to beta carotene as the most abundant carotene in plants, that's true too, we can also find other kinds of carotenoids on plants, but this one as it's seen in lab, is the most common one. The last one, D, isn't true, the two major divisions are: Xanthophylls and Carotenoids, beta carotenoids are a type of carotenoids, not a different group.

8 0
3 years ago
Humans extract ground water ,a natural resource from underneath the land. Which is a way that humans depend on ground water. Sel
stira [4]
A,B, C and D are correct
7 0
3 years ago
How can it be possible that scientists do not currently have fossil evidence for every organism that once lived?
olya-2409 [2.1K]

Answer:

How can you know what happened millions of years ago if no one was there to see it? Evidence and observation are the building blocks of all scientific inquiry; ... of the fossil record, geological formations, and genetics attest to change having taken ... clues together into a cohesive explanation of the diversity of living things. Because of the specialized and rare conditions required for a biological structure to fossilize, many important species or groups may never leave fossils at all. Even if they do leave fossils, humans may never find them—for example, if they are buried under hundreds of feet of ice in Antarctica.

Explanation:

7 0
3 years ago
Please help, I know the answer is on chegg if you have it.
Romashka-Z-Leto [24]

Answer: Lipids

Explanation: The ratio of saturated and unsaturated fatty acids (lipids) determines the fluidity in the membrane at cold temperature.

7 0
3 years ago
Read 2 more answers
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