WHAT IF? Suppose that an invertebrate species waslost in a mass extinction caused by a sudden catastrophicevent. Would the last appearance of this species in thefossil record necessarily be close to when the extinctionactually occurred? Would the answer to this questiondiffer depending on whether the species was common(abundant and widespread) or rare? Explain.

Q: Suppose that you discover a new species of gastropod in a deep-sea hydrothermal vent community. This…

A: A graph that shows the number or proportion of individuals that survive to every given age for a…

Q: Can someone explain the problem. I don't need the answer but I need an explanation only. Problem:…

A: Island biogeography has been a subject matter of significant interest to biologists and geographers…

Q: The diversification of one species into many to occupy different niches is called:

A: A. ADAPTIVE RADIATION It is an ancestral line into different forms which in turn occupy diverse…

Q: Describe the geological points at which mass extinctionsoccurred and give one proposed cause for…

A: Mass extinction can be defined as the event in which a huge amount of loss of biodiversity took…

Q: What do paleontological studies show about the relationship be-tween the geographic range of a…

A: Paleontological studies provide history about life present on earth. This study depends on the…

Q: What is the evidence that the megafaunal extinction in the Pleistocene was partly caused by humans?

A: Megafauna and Human  Simply large mammals are mega fauna. Elephants, goats ,fish,  lions and even…

Q: Discuss the relationship of the predation in the extinction of some animals.

A: Organisms living together in an ecosystem constitute its biotic components.

Q: Which of the following is TRUE about the fossilization proccess: A. a stable enviornment is…

A: The question is asking us to identify the correct statement(s) about the fossilization process.…

Q: What type of distribution pattern is evident for the copepod species Clausocalanus ingens in the…

A: Distribution is the pattern of arrangement of a population in an area. The limit of the geographical…

Q: Look at the upper right side of this diagram of the phylogenic tree. What does it suggest has…

A: The phylogenetic tree is defined as the diagram that will represent or depict the evolutionary…

Q: WHAT IF? Imagine two populations of a fish species,one in the Mediterranean Sea and one in the…

A: Genetic diversity refers to the overall genetic characteristics present in the genetic makeup of a…

Q: MAKE CONNECTIONS Commercial fisheries targetolder, larger cod fish, causing cod that reproduce at…

A: Evolution is a change in the heritable characteristics of biological populations over successive…

Q: A > B В Based on your knowledge of energy flow through a system and the questions you just answered,…

A: In a terrestrial ecosystem, the relative abundance of the organisms at different trophic levels…

Q: Outline the major events and changes in species diversity duringthe Paleozoic, Mesozoic, and…

A: The genes are hereditary units of an organism that is transferred from one generation to the next.…

Q: Event How Long Ago? # Organisms Extinet Causes Cretaceous

A: Cretaceous extinction :  Cretaceous extinction took place about 66 millions ago . Organisms which…

Q: Case for (Very) Early Cooking Heats Up Nearly two million years ago our ancestors began to barbecue.…

A: Though option B and C both are correct. But statement C is more accurate than B.

Q: A vortex to extinction is most likely to occur in a population: O When the population is small with…

A: NOTE:- "As you have posted multiple questions under one, we will solve the first part for you, to…

Q: Why might the increasing human population result inan increase in the extinction rate of other…

A: Humans have committed genocide on the species level. As the human population grows, humans will…

Q: If 99% of the species that ever existed are now extinct, why is there such concern over the…

A: there such concern over the extinction rates over the last several centuries because:

Q: The 6th (Holocene) mass extinction is mostly the result of human activities. O True O False

A: Mass extinction refers to the loss of biodiversity on a large scale due to massive extinction of…

Q: choose between the tiven

A: Introduction An ecosystem is a geographical area in which plants, animals, and other species, as…

Q: Insects are the largest group of animals on Earth. Insectdiversity is greatest in the tropics, where…

A: Habitat destruction and species extinction pose a great threat to biodiversity. Increasing human…

Q: Which of the following would be considered an adaptive radiation? A new island forms and many…

A:

Q: Predict how species diversity would change if sea otters disappeared from kelp forests. O A…

A: Ecosystem  It is a defined area where living and non living things like plants, animals, soil,…

Q: Afish maturing late with large body size and producing many small offspringwould be said to have…

A: BASIC INFORMATION  LIFE HISTORY VARIATION  it is used to study the different strategies of life…

Q: In the 1890s, hunting reduced the northern elephant seal population to only 20 individuals. Due to…

A: Variation of gene frequencies is referred to as genetic variation. Individual variations or…

Q: Are we the culprits of the sixth extinction? Cite two examples to justify your stand.

A: Extinction occurs when a species' last members are no longer living. Animals that have not adapted…

Q: . In what ways have human activities influencedthe biogeographic distribution of animals? Howhave…

A: An ecosystem is a geographical region composed of living (biotic) and non-living(abiotic) factors…

Q: A species is considered to be endangered if it is expected to be extinct within 20years. A…

A: The objective of the question is to determine the year in which the population of porpoise is…

Q: Which of the following is true of a freshwater biome? O biodiversity is high O salinity is high O…

A:

Q: How many mass extinctions have occurred total? List several possible causes.

A: Extinction is defined as the extermination of a species from the earth. Species extinction is caused…

Q: (a)choose one ecomorph and explain how the characteristics of that body type are adaptations to that…

A: Ecomorphs are populations of a species having small differences in its colour or form which…

Q: There have been 5 global extinction events prior to humans but humans have played a definite role in…

A: As a name suggests , mass means wide group while , extinction means total eradication or destruction…

Q: Is it feasible for animals and the environment to continue evolving or do they eventually become…

A: Evolution : It is defined as the change in the characteristics of the species with time over several…

Q: a. are we  amidst an extinction right now ? why b. is it  a mass or background extinction,

A: Yes we are in a extinction that is known as 6th mass extinction it is the worst and fastest…

Q: Metapopulations: model The figure below indicates overall colonization and extinction patterns based…

A: The individuals in a population are spatially distributed into 2 or more subpopulations in a habitat…

Q: are shown What effect do sea otters have on kelp biomass?

A: Answer is b. Positive effect

Q: How are the different biodiversity patterns related to different speciation mechanisms?

A: Speciation The term was first proposed by Orator Cook. It is described as the process of evolution…

Q: Multiple Cholce Question The. approach creates phylogenies based on shared derived characters and…

A: Relationships that have developed between two distinct animals as a result of the worldwide process…

Q: Explain Paine's (1966) starfish (pisaster) in rocky interdial zones of the us

A: Dr. Robert Paine, who is a stalwart in the field of ecological studies. Here's the first one who…

Q: n Darwin's mind, the origin of species is inextricably linked to the extinction of species. Why? O…

A: Introduction Extinction is the destruction of a type of organism or a group of organisms, most…

Q: Know the 3 survivorship curves. How is a food chain different from a food web? Why is transfer of…

A: There are many questions and we are allowed to answer only three at a time.Let's look into your…

Q: Amézquita et al. (2009) explored the assemblage of anuran species in a waterfall system in the Andes…

A: APA citation is a standardized format for citing sources in academic writing, developed by the…

Q: Refer to Figure 2A in the article.  Which of the following best describes the change in the…

A: Molluscs have a soft, unsegmented body that is often protected by a hard shell. They also have a…

Evolutionary lineages

An evolutionary lineage is a series of populations of organisms that descend from a common ancestor. Each species in the lineage is the direct consequence of evolutionary change from a common ancestor. A phylogenetic tree is generally used to display lineages visually. Lineages are components of the phylogenetic tree of life. Molecular systematics procedures are widely used to predict lineages.