Biologists estimate how long ago species separated from a common ancestor using a technique called

Answers

Answer 1

Answer: The answer is molecular clocks.

Molecular clocks use rates of mutation to measure evolutionary time. This technique is based on the fact that mutations add up at a fairly constant rate in the DNA of species that evolved from a common ancestor. The more mutations that happened in each lineage, the greater is the differences between these lineages and vice versa.

Answer 2

Answer:

Your answer is molecular clocks.

Related Questions

In 1953, who developed the model that is shown below?
The populations of the great apes in Africa are recovering and on the rise. Please select the best answer from the choices provideda. True b. False
How do bacteria move?
The body's ability to maintain a relatively constant internal environment is called homeostasis. This stability can be challenged by:(Select all that apply) A. reduced water or food intake B. infectious organisms C. elevated or depressed blood pH D. extreme temperatures.
On the pH scale what results means the water is acidic 9.2, 7.0, 3.2, 10.0?

Which organism is most closely related to the snake?a. alligators
b. turtles
c. lizards
d. birds

Answers

c. lizards are most closely related to the snake.

Which animals are involved in snakes?

Snakes, lizards, turtles, crocodiles, and birds are reptiles. Like all vertebrates, reptiles have a bone skeleton that supports the body.

Snakes and lizards are closely related and belong to the same order called Squamata. Both lizards and snakes are reptiles and belong to the scaled reptiles. Over 10,000 species belong to this group, with lizards showing the greatest diversity.

Due to their physical resemblance, some scientists believe that lizards and snakes are closely related. However, DNA studies have shown that worm lizards are closely associated with the lizard, a type of limb lizard found in Europe, Africa, and Asia.

Learn more about snake here: brainly.com/question/601460

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The answer would be C. the Lizard

What steps do scientists often use to solve problems?

Answers

Answer:

Explanation:

some ways Scientists solve problems are that they follow the 7 steps of the scientific method which are problem, research, hypothesis, experiment, collect data ,conclusion, and repeat the process

Answer: observation, hypothesis, experiment, and conclusion.

Explanation:

Photosynthesis and respiration are alike in thatthey both
(1) require the Sun as a direct source of energy
(2) result in the production of glucose molecules
(3) require specific catalysts
(4) occur within mitochondria

Answers

Both photosynthesis and respiration require specific catalyst.
Why not the other answer?
(1) only photosynthesis require the sun as a source of energy,respiration use glucose.
(2) photosynthesis result in the formation of glucose,respiration result in the formation of carbon dioxide.
(3)Only respiration occur in the mitochondria,photosynthesis occur in the stroma of the chloroplast.
Answer is 2 because both of them require specific enzyme and as you know enzymes are biological catalyst.

cat's leg, dolphin,s flipper,bat's wing these similarites provides evidence for which of the following hypotheses? A.legs and wings may have evolved from flippers. B.all mammals have evolved from ancestor that was a bat. C.a cats leg, a dolphin's flipper, and a bat's wing have identical functions. D.cats, dolphins, and bats may have had the same ancestor millions of years ago.

Answers

Homologous structures are defined as similar physical structures, which share a common ancestor. These similar structures perform different functions.

Similarities in Bat's wing, Dolphin's flipper, and Cat's leg

Cat, Bat, and Dolphins are mammals, which consist of similar structures such as limbs that are evolved to perform different functions.

The homologous structures show evidence that organisms shared a common ancestor, most probably 60 millionyears ago.

Thus, the hypothesis that suggests the different structures of the organisms is that these organisms shared a common ancestor.

Learn more about homologous structureshere:

brainly.com/question/7904813

The answer is D because if they are similar it means that they share a distant ancestor they evolved from.

What do plants do with the molecules made
during photosynthesis?

Answers

Answer:

Photosynthesis uses energy from light to convert water and carbon dioxide molecules into glucose (sugar molecule) and oxygen (Figure 2). The oxygen is released, or “exhaled”, from leaves while the energy contained within glucose molecules is used throughout the plant for growth, flower formation, and fruit development

Explanation:

The oxygen is released, or “exhaled”, from leaves while the energy contained within glucose molecules is used throughout the plant for growth, flower formation, and fruit development.

Kendra is studying a unicellular organism that lacks a nucleus. To which kingdom does this organism most likely belong?

Answers

Answer;

Kingdom Eubacteria

A unicellular kingdom that does not have a nucleus would belong in the kingdom Eubacteria.

Explanation;

Kingdom Eubacteria is the kingdom of prokaryotic, single-celled organisms that lack a membrane-enclosed nucleus and can be classified by shape.

Prokaryotes are organisms that lack nucleus and other membrane bound organelles, such as mitochondria. Unicellular means that the organism is made of one cell.

Answer: Kingdom Monera (sometimes separated into two kingdoms: Eubacteria and Archaebacteria)

Given that the unicellular organism that Kendra is studying lacks a nucleus, it most likely a part of the Kingdom Monera (which is sometimes separated into two kingdoms: Eubacteria and Archaebacteria). If the unicellular organism possesses a nucleus, then it’s most definitely belongs to the kingdom Protista.

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