What does finding A. fibrosa on modern-day Antarctica suggest about that continent’s past climate?

Biology

1 answer:

Fiesta28 [93]2 years ago

3 0

Must be passed from parent to offspring to have an effect on evolution of a species. give brainliest x

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Explain how cells specialize to form specific tissue and organs?

S_A_V [24]

All cells have the same DNA. They are different because different genes have been locked up and only some of them are expressed. The process began in the embryonic stage, when stem cells are turned into different types of cells by turning off some of the genes. Scientists have been looking for ways to reverse the process, meaning turning specialized cells back into stem cells. Some success has been reported using different methods. The latest one uses a weak acid to stress the cells.

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3 years ago

Using this passage, fill in the blank with either G1, G2, or G3. (1) All dogs are mammals. (2) All mammals are things with hair.

AleksandrR [38]

Answer:

Given the values for G1, G2, and G3, the blank spaces are filled below.

Explanation:

Assuming that

G1 = dogs

G2 = mammals

G3 = things with hair

Then

(A) All G1 are G2

(B) All G2 are G3

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3 years ago

In an Island ecosystem, fox and skunks both hunt mice and toads. Which of the following correctly describes some of these relati

Vlad1618 [11]

I'd say the answer to this one is B, skunks and toads have a predator-prey relationship. Good Luck!

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3 years ago

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3. What happens to the amount of Ammonium Chloride (NH4)Cl that can dissolve as the temperature decreases?

Nesterboy [21]

as in any liquid, as heat is added, solutions become more capable of holding more dissolved material . (not sure if this is what you're asking as it seems to be missing information)

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3 years ago

In fruit flies, the allele for white eyes is recessive to the allele for red eyes. In a generation of fruit flies, 45 males with

Aleksandr [31]

1 is C - see first attachment. Genotypes with Y's represent males, and big R represents red eyes, while little r represents white eyes. For example XRxr is a heterozygous (red-eyed) female, and XrYr is a homozygous white-eyed male.

2 is B because the absence of functional proteins and some ribosomes due to the mRNA strand is not as detrimental as the loss of the entire cell.

3 is B. (The insertion of 3 base pairs into a genetic sequence is the length of a single codon, meaning that only one amino acid in the entire polypeptide was added)

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4 years ago