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Kazeer [188]
1 year ago
11

Which of these are amniotes?

Biology
1 answer:
Goryan [66]1 year ago
7 0

Answer: Amniotes are B) placental mammals.

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Dinosaurs emerged during what time period? A. Paleozoic Era B. Mesozoic Era C. Proterozoic Eon D. Cenozoic Era
gayaneshka [121]
<span>Mesozoic Era is the anwser</span>
5 0
3 years ago
Which of these is not needed by living organisms?
Bezzdna [24]

Answer:

Gravity.

Explanation:

Without air, living organisms would suffocate and die.

Without water, living organisms would dehydrate and die.

Without energy, living organisms would die instantly.

Without space, living organisms would be squished together and die.

The only logical answer left is gravity.

3 0
2 years ago
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Describe the relationship between science and technology, and give an example of how they are related.
tankabanditka [31]
Science locates necessary info about how the universe works.  Engineering invents practical devices and systems using the knowledge learned by science. Technology is the collection of <span>products of engineering that can be used to solve problems and perform useful </span><span>tasks.</span>
5 0
3 years ago
You cross two true-breeding parents (one with yellow seeds and one with green seeds), grow and self-pollinate the F1 generation,
Andru [333]

Answer:

1500

Explanation:

Let's assume that the allele for yellow seed color is "Y" and the allele for green seed color is "y". Genotype of pure breeding yellow seeded plant would be "YY" and that of the green seeded plant would be "yy". A cross between YY and yy gives all heterozygous yellow seeded plants (Yy) in F1 progeny. Self pollination of two F1 plants (Yy x Yy) obtains F2 generation in 3 yellow: 1 green ratio.

The total population size of F2 generation = 2000

The proportion of yellow seeded plants in F2 generation = 3/4 (since the F2 phenotype ratio is given 3 yellow: 1 green)

Therefore, total number of yellow seeded plants in F2 progeny = 3/4 x 2000= 1500

3 0
3 years ago
Why didn't Bill Stacy have blue skin even though his mother did?
spin [16.1K]

Answer:

because bill stacy was sick.

Explanation:

4 0
2 years ago
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