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viktelen [127]
3 years ago
10

One of the unique characteristics of water is its ability to maintain a constant temperature within large aquatic systems. why i

s this important to an aquatic environment?
Biology
1 answer:
DanielleElmas [232]3 years ago
3 0
cooling temperature aquarium environment
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(NEED HELP ASAP) BRAINLIEST NO FAKE ANSWERS
konstantin123 [22]

Answer:

scientist is attempting to build a cladogram that shows the evolutionary closeness of three organisms in relation to humans. After doing DNA analysis, they determine that the organisms share the following percentages of DNA:

Organism A and humans share 85% of their DNA.

Organism B and humans share 80% of their DNA.

Organism C and humans share 90% of their DNA.

Based on this information, which order should they go on the cladogram (from least related to most related)?

(1 point)

A, B, C, humans

C, B, A, humans

C, A, B, humans

B, A, C, humans

2.A cladogram shows the evolutionary relationship between humans, chimpanzees, and gorillas. The cladogram currently shows humans and chimpanzees with a more recent common ancestor compared to gorillas. Which piece of evidence, if true, would most likely weaken this hypothesis?(1 point)

Fossils of humans appear in deeper sedimentary rock layers compared to fossils of chimpanzees.

Amino acid analysis of the cytochrome c protein shows significant differences in the sequence of amino acids between humans and gorillas.

DNA sequence analysis of the hemoglobin alpha gene shows that humans and chimpanzees have a more similar sequence to each other than they do to the gorilla’s DNA sequence.

The cells of the eye in embryos of gorillas and humans follow a similar pattern of development while chimpanzee embryos are different.

3.The forelimbs of bats and humans have a very similar bone structure even though they appear very different on the outside. These structures are known as __________ because they result from species evolving __________.

Which of the following answer choices correctly completes the above statement?

(1 point)

homologies; similar adaptations in similar environments

analogies; from the same common ancestor

analogies; similar adaptations in similar environments

homologies; from the same common ancestor

4.All vertebrate embryos have a tail and gill slits at some point during embryonic development. What does this suggest about vertebrates?(1 point)

The embryos of these species require these structures to survive.

These species evolved in similar environments.

These species have the exact same DNA sequence.

These species share a common ancestor.

5.Fossil A is found closer to the surface compared to Fossil B. Which of the following conclusions can be made based on this statement?(1 point)

Fossil A is from an older species than Fossil B.

The species of Fossil A existed at the same time as the species of Fossil B.

The species of Fossil A evolved from the species of Fossil B.

Fossil B is most likely older than Fossil A.

6.Vertebrate embryos all follow a very similar developmental process. Which statement could explain this similarity?(1 point)

All vertebrates require the same nutrients during embryological development.

All vertebrates develop a backbone that protects the spinal cord.

All vertebrates inherit the same sequence of DNA from their parents.

All vertebrates live in similar environments which require the same adaptations.

7.Some mutations, or changes in the sequence of DNA, do not have any effect on the characteristics of the organism. Why is this?(1 point)

The immune system repairs the mutated sequence during development.

The protein built from this mutated sequence is deactivated by the cell.

The mutated sequence still codes for the same amino acid.

The cell recognizes mutations and ignores them when expressing the gene.

8.What is typically studied when analyzing not-yet-born (or unhatched) animals?(1 point)

embryological development

evolutionary theory

causal records

DNA sequencing

9.What can scientists analyze to get a better understanding of how plants and animals evolved from a common ancestor?(1 point)

petrified bones and imprints of plants

DNA molecules

vertebrate embryos

life cycles and behaviors

10.How can embryos help scientists understand evolution?(1 point)

Embryos contain the code for all life on Earth.

Embryos go through various stages that suggest the animal’s evolutionary process.

Embryos provide evidence for which life forms existed at the same time.

Embryos are frequently fossilized and illustrate change over time.

11.Astronomers have made great strides in sending probes out to other planets and moons in our solar system. If they were to find a living creature some place other than Earth, how could DNA analysis help them better understand the organism? Explain in 1–2 sentences.(2 points)

12.In 1973, biologist Theodosius Dobzhansky wrote an essay titled “Nothing in Biology Makes Sense Except in the Light of Evolution.” Why is evolution so important for understanding biology? Explain your answer in 1–2 sentences.(2 points)

13.You are a scientist tasked with writing a journal article on the evolution of alligators. In 3–5 sentences, describe the different forms of evidence you might use to analyze the evolution of alligators.(4 points

4 0
3 years ago
Read 2 more answers
Formas en las que se puede recopilar la data experimental que va a ser analizada e interpretada.​
Cerrena [4.2K]

Answer:

Experimento, observación directa, encuesta, entrevista, etc.

Explanation:

El método de investigación implica el ordenamiento sistemático de la información científica con el objetivo final de confirmar o rechazar una hipótesis de trabajo. Antes de comenzar una investigación, es imperativo conocer cuales son los tipos de datos que permitirán responder las preguntas planteadas en dicho proceso. Para ello, es necesario tener en cuenta que los datos resultan útiles cuando pueden ser clasificados y/o medidos, es decir, cuando ellos representan variables con diferentes estados (cuantitativos) o cuyos valores son fluctuantes entre sí (cuantitativos). Los datos deben cumplir una serie de requisitos, estos deben ser confiables (no falseables), objetivos (presentar el mismo valor en medidas independientes) y válidos (útiles para la investigación). Los métodos más comúnmente utilizados para recopilar datos son los siguientes: 1-observación directa: por ejemplo, mediante la observación de variables en su contexto natural; 2-experimentación, donde la información es obtenida en condiciones controlada; 3-encuestas, las cuales consisten en la toma de datos estadísticamente normalizados; 4-entrevistas, que representan un método indirecto de obtención de datos cualitativos.

8 0
3 years ago
In oxidation, is needed to create a chemical reaction.
mash [69]

Answer;

Oxygen or an oxidizing agent to receive electrons must be present for oxidation to occur in chemical reactions.

Explanation;

Oxidation entails the loss of electrons from these molecules, causing them to become unstable and highly reactive and leading to their eventual reaction with and damage of cell components such as membranes.

-In redox reaction; The ion or molecule that accepts electrons is called the oxidizing agent; by accepting electrons it causes the oxidation of another species. Conversely, the species that donates electrons is called the reducing agent; when the reaction occurs, it reduces the other species.

8 0
3 years ago
Read 2 more answers
Your class went out to Government Canyon State Park, and each group had to measure the size and density of organisms in a 1m2 ar
user100 [1]

Answer:

  • A signifies quadrant sampling.

  • B signifies density.

  • C signifies percentage coverage as it is the average estimate of the area the species covers in a quadrant.

  • D signifies frequency as frequency = no of plots in which sample is found/total no of plots.

  • E signifies average density. As density = number of plants per square meter.

  • F signifies average percentage coverage

4 0
3 years ago
why was it important for mendel to study such a large sample of pea plants to determine the probability of inheritance
mario62 [17]
If he studied a small sample it wouldn't be a representative sample. since he got such a large sample there is a chance most likely all organisms follow the rules of evolution.
3 0
3 years ago
Read 2 more answers
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