The Gulf of St. Lawrence is home to the beluga whalesThere once were thousands of belugas in this popula tion, but now there are fewer than 1000 whales. High levels of organic chemicals have been found in the bod ies of dead whales. Describe how bioaccumulation and biomagnification have contributed to harmingthe be luga whales.

Q: Mass extinction has never been documented to occur before occurs often, with rapid recovery of…

A: Mass extinction leads to the extinction of various species. It could be the result of meteors,…

Q: If a mass extinction is happening, why don’tI notice species disappearing around me?

A: An extinction event is a significant and rapid loss of biodiversity on the planet. A dramatic change…

Q: What seems to be a common occurrence with all mass extinction events? Rising CO2 Rising water pH…

A: Introduction  The word "extinction" refers to the end of a particular type of organism or a set of…

Q: Genetic diversity is important for evolution and adaptation. O True O False

A: Genetic diversity: The number and variety of species like plants, animals, and other organisms that…

Q: How does disturbance effect the diversity of a marine community, particularly in intertidal…

A: Disturbances might get generated by abiotic forces such as weather or may be as a result of biotic…

Q: If all four areas in Table 5-1 had identical climate and geology, which one would probably have the…

A: There are four areas A,B,C,D and there are six types of species here U,V,W,X,Y,Z.

Q: Plate tectonics were a major factor in shaping life on this planet. Explain how plate tectonics can…

A: Plate tectonics is the theory that Earth's outer shell is divided into several plates that glide…

Q: The long-leaf pine forest ecosystem once extended across 95 million acres of the southeastern US.…

A: The organisms can be present in different geographical location on the earth. The organisms that are…

Q: "Human induced extinctions are therefore undesirable" Explain this  ?

A: The ecosystem comprises both biotic and abiotic factors. The biotic factors include all the living…

Q: Species often arrive at an area by catching a ride on other species-including hosts. For example, a…

A: Development of a group or species occur as a result of beginning at a particular location or area.…

Q: On one acre of land, annelids can process about pounds of soil a year. O 16 O 2,000 O 16,000 O…

A: Ans- 16,000 Explanation- Annelids are also called as segmented worms which comes under phylum…

Q: Continue to assume that the same four individuals in the pedigree are albinos, and calculate the…

A: As per the guidelines, we are supposed to answer only the first three sub-parts. Kindly repost the…

Q: Suppose you were told that mining deep-oceanmineral resources would mean severely degradingocean…

A: Mining refers to process of extracting minerals by digging sea,land etc. Land resources are…

Q: theRelation Be tween he Land पककारार

A: The rate of a reaction is dependent upon the many factors for a reaction, for example, concentration…

Q: 100 k=0.0114 60 20 R2=0.701 a Microfauna +Mesofauna +Macrofauna

A: MICROFAUNA These are those microorganisms which are microscopic but exhibits animal- like features…

Q: Which is likely to be the first organisms to colonize an areà after a disturbance like fire? O…

A: Ecological succession is defined as the change in the structure of biological community in an…

Q: [ Select ] The realized niche of Cthamalus is [ Select ]

A: Niches and habitat

Q: What factors influence the diversity of speciesthat interact at this African lake?

A: Community ecology is the study of the interactions between species in communities on many spatial…

Q: This figure shows the density of kelp in kelp forests around to islands before and after a large…

A: Kelps are algae seaweeds that comes under the order of Laminariales, which are large and brown in…

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: H 10 Regional Plankton Biomass W Malay 1980s 1990s Year -Middle Atlantic Bight -Georges Bank MA…

A: Gulf of Maine is one of  the most dynamic , diverse and unique environments. Frequent tides keeps on…

Q: When prokaryotes live as interacting communities in whach one population benefits to the karm of the…

A: A. Parasitism is correct answer. When prokaryotes lives as interacting communities in which one…

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: Australian researchers removed a parasitic plant called mistletoe froma forest and observed the…

A: The maintenance of biodiversity is based on the balance between the species. Biodiversity is crucial…

Q: Upper Intertidal Zone Lower Intertidal Zone Balanus balonoides Chthamalus stellatus The diagram…

A: Niche is defined as  1. the region that a particular organism resides in2. An organism's or species'…

Q: choose between the tiven

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

Q: Table1. Diversity of Organisms Community A Species 1 2 3 4 5 TOTAL Community B Abundance of…

A: Biodiversity cones from two words :- Bio and diversity  Bio means living  Diversity means varieties…

Q: If two continental land masses converge and are united during continental drift, then the collision…

A: Option E - An increase in the climatic extremes in the interior of the new supercontinent. Here, in…

Q: How is family related to a species?

A: Family is considered as one of the eight hierarchical taxonomic categories used in Carolus Linnaeus…

Q: Polar bears live on the ice cap near the North Pole. Their numbers aredwindling, apparently because…

A: Global warming has caused dynamic changes in earth. Rise in temperature has caused the glaciers to…

Q: Many arguments have been advanced for the importanceof preserving biodiversity. Which argument do…

A: Biodiversity is a term used to describe variation at the genetic, species, and ecosystem levels.…

Q: The paramecium species competed for both populations to This ✓ because they the competition between…

A: Paramecium Aurelia and Paramecium Cadatum are ciliate protozoans. If they grow separately then both…

Q: How do the four hypotheses, described in your text, provide alternative explanations for the pattern…

A: In the ecosystem, The species and their availability always depend on their source of food. The…

Q: How many food chains are there in the food web picture

A: Food Chain: It is a order linear network of links starting from producers or organic matters to…

Q: 5. Use Models Choose one of the food chains shown within the food web in Figure 4-3. Write a…

A: Food webs    Food webs constitutes multiple interconnected food chains which represent more…

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: Coral is described as a foundation species, does this mean?

A: Since you have asked multiple question, we will solve the first question for you. If you want any…

Q: Predict how the change in temperature may have impacted the woolly mammoth and its habitat. Use the…

A: Researchers have found evidence to suggest that climate change, rather than humans, was the main…

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: The number of species on earth is ________.     changed only by a major ecological event…

A: Earth is a planet in the milky way galaxy and by-far is the only astronomical object supports life.…

Q: Are communities that are biologically diverse more likely or leas likely to contain species that are…

A: Ecological resilience:-It is also known as ecological robustness-It is defined as the ability of any…

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

A:

Q: Characteristics of the Hutchinsonian niche are O a. the niche is formed by species distribution…

A: Hutchinson niche in 1957 proposed the concept of Hutchinsonian niche which is also called n-…

Q: Global climate change is largely recognised as resulting from a disruption of the carbon cycle. True…

A: Answer: true

Q: Why do we think that the forest communities of eastern North America have changed dramatically over…

A: Ecological succession is the process by which an ecological community changes and develops over time…

Q: Earth Day” is observed in _____ countries than “Arbor day”

A: The first earth day das celebrated on April 22 -1970 and this is sometimes also called as beginning…

Physical and Chemical features

The physical property of a compound could be determined without modifying the originality of the compound. Examples of physical properties are density, hardness, color, boiling, and melting point. The chemical property expresses the ability of a compound to undergo a particular chemical change.