what is the brown bears range in North America at the present time?

Q: the south Florida rainbow snake is likely extinct. what most likely hap

A: The rainbow snake is a colourful, non-venomous snake that lives in southern Maryland and eastern…

Q: Do aphids attack old or young trees? Give detailed biological/ecological reason to why they choose…

A: Aphids are the sap-sucking insects that are considered the most destructive insect. They are very…

Q: What is the indigenous name of Gulf of California

A: The Gulf of California, It refers to the sea found in the Pacific Ocean, which separates maxican…

Q: how would coral bleaching affect other populations in the coral reef

A: Coral bleaching is important since reefs seldom recover after these corals die. Corals fail to…

Q: what is the current population of hawks?

A: Hawks (family Accipitridae) are one of the major groups of predatory birds that are active during…

Q: How does invasive aquatic species affect the genetic diversity

A: Invasive species Invasive species are those that are intentionally introduced into a group of…

Q: Are Island Populations of Song Sparrows Density Dependent?

A: Ecology is the study of interaction of organisms with one another and with the environment. Ecology…

Q: In the IUCN Red List(2004), what does ‘Red’ represent?

A: IUCN stands for International Union for Conservation of Nature. This organization works for the…

Q: Many of the oak tree species in central and eastern NorthAmerica hybridize (interbreed). Are they…

A: True species  are those species who are interbreeding species, and produces viable offspring . These…

Q: How are the populations of the barnacle species balanus and chthalamus affected when Thais density…

A: Balanus is a genus of barnacles belonging to the family Balanidae of the Crustacea subphylum.…

Q: The Philippine Eagle is one of the critically endangered wildlifes in the Philippines. What are the…

A: Philippine eagle which is also known as the Monkey eating eagle is the worlds largest and most…

Q: How big is feral cats compare to domestic cats? Are feral cats stronger then domestic cats if so…

A: Feral cats are more or less like domestic cats having an average adult of 4.5 kg which is slightly…

Q: low did doubling the rabbit population affect the grass, snakes, and hawks at first? low did halving…

A: Individuals make up a population,populations make up a species, multiple species and their…

Q: What limits species’ ranges?

A: A species range is the area where a particular species can be found during its lifetime.  Species…

Q: What were the "north American megafauna" (name a species or 2) and what are the main reasons they…

A: Megafauna is often described as large animals with weight of over 45 kilograms, living in an…

Q: How does the reduced genetic diversity of small populations make them more vulnerable to extinction?

A: Generally, higher population genetic diversity in the  species may be due to a combination of…

Q: Does the species seem more characteristic of mountain areas or of valley areas? Why do you think…

A: As per the link provided in the question and the video by Prof. David Wake from the University of…

Q: What barriers prevent wood frogs and leopard frogs from interbreeding in nature?

A: Introduction: Evolution refers to the change in the species with time. Every single species living…

Q: Why would increasing vegetation heterogeneity lead to increased species richness in birds?

A: Vegetation heterogeneity is referred to as the variety of vegetation at a wide range. This means…

Q: How does continental-drift theory help to explain the disjunct distri-bution of marsupial mammals in…

A: The Continental Drift Theory was proposed by Alfred Wegener in the early part of the 20th century…

Q: What does Callicott say about Leopold’s view of nonnative species?

A: The Leopold says that, The maintenance of energy transfer is essential to land health and says that…

Q: How many species of plants and animals have been described by IUCN in 2004? What is global species…

A: Biodiversity or biological diversity is the variety of living organisms present on Earth and the…

Q: Why are species with low body size and low population size probably rare?

A: Evolutionary biology is one of the fields of biology that study evolutionary processes such as…

Q: In which ways could polar bears and grizzly bears be considered the same species? Give at least 3

A: Bears are mammals of family ursidae. They are carnivorous , as they can feed on other animals. Polar…

Q: Two closely related Aster species occupy two different habitats. The first one (Aster 1) lives in a…

A: The relation between seed size, number of seeds and exposure to light are very crucial for each…

Q: Which is the Dependent Variable and the independent variable in the below question.   The beak…

A: A variable whose values do not depend on another variable is called as independent variable whereas…

Q: What caused the drastic decline of theIllinois greater prairie chicken population?

A: Greater prairie chicken, commonly known as boomer due to its unique mating ritual known as booming.…

Q: How are grasslands classified?

A: In this question we will discuss about how grasslands are classified.

Q: What has happened to decline the population of Katy Prairie

A: Katy prairie chicken is a highly endangered subspecies.

Q: Which areas of countries in South America have dense populations? Why?

A: INTRODUCTION Ecuador has the highest population density in South America.

Q: How Are Bird Populations Changing at Hakalau Forest?

A: The type of ecosystem showing wide patterns of biodiversity as well as comprises of large trees can…

Q: Are Northern Sea otters a part of the polar region

A: Yes , Northern Sea otters are the part of the polar region .  They are found in the Aleutian…

Q: Which species decreased in number and what might account for this decrease?

A: Herbivores can be defined as the type of organisms which depend on the autotrophs, such as plants,…

Q: How do peppered moths hide from predators? What covers the trees that helps them blend in? There are…

A: The Peppered Moth or Biston betularia is a species that is of considerable interest to…

Q: what are two solutions of protecting the Ethiopian wolf from going extinct

A: Ethiopian wolf (Canis simensis) is found in high mountains of Ethiopia and have two subspecies, a…

Q: Why is it difficult to predict which species will be driven extinct by global warming?

A: Global warming is the phenomenon of gradual increase in the temperature of atmosphere, oceans, and…

Q: what is the nature and wildlife like in Georgia asia

A: Geopolitically, Georgia is part of the Caucasus region, Straddling the line between Eastern Europe…

Q: Describe old growth forests. Do they have a high or low diversity of trees when compared to tree…

A: Wood-pecker is defined as a climbing bird that belongs to the family Picidae. It will typically have…

Q: What overall trend statement could you make about the impact of the brown tree snake on bird…

A: Brown tree snake  Brown tree snake biological name Boiga irregularis, sometimes also known as brown…

Q: Assuming the Denisovans, Neanderthals, and humans were able to interbreed, what does this tell you…

A: Denisovans are group of extinct humans. They first identified based upon DNA sequences from…

Q: ow did the distribution of gray and brown tawny owls in the population likely change from the year…

A: The survival rate of tawny owls are highly affected by the snow depth.

Q: In which ways could polar bears and grizzly bears be considered different species? Give at least 3.

A: Evolution generally refers to the process which involves alteration in the characteristics of an…

Q: How do the species in desert interact with one another

A: Desert animals and plants interact in ways that have strongly influenced their respective…

Q: What are two ways the wildebeest were indirectly affected by humans in the Serengeti ?

A: The Serengeti-Mara system is one among the largest and most protected ecosystems on Earth, spanning…

Q: What species native to Oklahoma went from billions of animals to extinction in just 82 years ?

A: Extinction of Animals  Species on Earth-- The extinction of any species is an irreversible loss of…

Q: What is the pyramid of numbers in a pond ecosystem?

A: Ecosystem represents a biological community of interacting organisms and their physical environment.…

Primate evolution

Primates are a relatively new species and first appeared in the fossil record nearly 55 million years ago. They may have originated as far back as the cretaceous period. Their fossils were observed in North America, Asia, and Europe. Long before the first monkeys and their prosimian relatives developed, most animal species thrived and died. The first primates did not exist until about 50-55 million years ago, even though the planet is 4.54 billion years old and the first life goes back at least 3.5 billion years. Dinosaurs had been extinct for 10 to 15 million years when this happened.