Untitled Quiz

Which two observations led Darwin to conclude that there is competition for survival?

Individuals with variations that make them best suited to their environment are, on average, more likely to

Before Darwin published his work, Lamarck and others had suggested mechanisms for evolution. By what means did Darwin propose species evolved over time?

Natural selection acts on ______ and ______ evolve.

A weed that exhibits resistance to an herbicide ______

Evolution can be best defined as ______

The oldest fossils are typically found in the sediments ______

Which of the following is evidence for evolution in action?

What is an adaptation?

Apples that we find in the grocery store today are much larger and sweeter than those found in the wild hundreds of years ago. Which process is responsible for this change?

Which of the following are considered fossils?

What is the name for the study of the geographic distribution of species?

Comparing the body structures of organisms to find evidence of a shared evolutionary history is called ______

If two organisms of different species share more similar DNA sequences with each other than with other species, we can conclude that ______

Human embryos have a developmental stage during which they have a tail and pharyngeal pouches (those pouches develop into gills in fish). How can we explain these characteristics of human embryos?

Which of the following are lines of evidence that support the theory of evolution by natural selection?

The modern evolutionary synthesis of the 1930s and 1940s melded together Darwin's findings with ______

What is the smallest unit that can evolve?

What defines a population in evolution?

Which of the following best defines microevolution?

What does fitness mean when speaking in terms of evolution?

How old is our planet Earth?

When did life first appear on the planet?

According to this phylogenetic tree, which bear is most closely related to the American black bear?

Which of the following statement is correct regarding the phylogenetic tree above?

What does the term biogenesis mean?

What are the main steps of biogenesis, in the correct order?

What do scientists believe was the original genetic material able to copy itself without assistance?

Which protective structure forms to protect certain bacteria during periods of harsh conditions?

Bacteria that have a spherical shape are called ______.

Prokaryotic organisms are present in how many domains?

Which of the following statements is accurate?

Which organisms are called extremophiles and flourish mostly in extreme conditions?

Which of the following is a way in which bacteria help the environment?

Which method of bacterial DNA transfer involves a physical connection between the two bacterial cells?

What are plasmids?

What is the endomembrane system?

What is the leading scientific hypothesis explaining how the endomembrane system of eukaryotic cells originated?

When did the first eukaryotic cells form?

How did mitochondria and chloroplasts arise in eukaryotic cells?

Based on the endosymbiosis theory that highlights where chloroplasts come from, how would you expect chloroplasts to divide when a plant cell divides?

What might be the advantage to an ancestral cell if it maintained a photosynthetic bacterium within its cytoplasm rather than digest it?

How do viruses make copies of themselves?

What are the three parts that make up the structure of most viruses?

An infectious circular piece of RNA that can infect plants is called a ______.

Which of the following infects only plants?

Humans are more related to fungi than to plants.

Are all fungi prokaryotes?

How do fungi reproduce sexually?

Which statement regarding fungal reproduction is true?

Where do plants typically store their starches and sugars for later use?

If the phloem in a tree trunk were to become blocked, how would this affect the plant?

In which tissue system of plants would you expect to find the guard cells?

What are the three tissue systems of plants contained in each plant organ, such as leaves?

All plant organs (such as leaves, roots, and stems) contain tissues from all three tissue systems.

What is a plant tissue?