If a population levels off, it typically transitions from a "J-shaped" growth curve to an "S-shaped" growth curve, also known as a logistic growth curve. The "S" shape reflects a population that grows rapidly at first (exponential growth) but then slows and levels off as it approaches carrying capacity. So the answer is: d. S

Sharks are least likely to be killed **e. By a predator**. While sharks are apex predators themselves and do not have many natural predators, when they are killed, it is typically due to human activities such as fear-driven actions, commercial fishing for their jaws and fins, sport fishing, or for food.

El sabor umami es uno de los cinco sabores básicos, junto con el dulce, salado, ácido y amargo. Se describe como un sabor sabroso y rico, a menudo asociado con alimentos que contienen abundantes aminoácidos, especialmente el ácido glutámico. La palabra "umami" proviene del japonés y significa "sabroso" o "delicioso". El umami se encuentra en una variedad de alimentos, tanto de origen animal como vegetal. Algunos ejemplos comunes son: 1.

Communities with a relatively constant number of species are said to have reached **c. equilibrium**.

You have noticed an example of **a. mutualism**. In this relationship, the oxpeckers benefit by getting food (ticks), while the elephants benefit from having the ticks removed from their skin.

African elephants and zebras are typically found in the **e. Savannah** biome.

The correct answer is **b. Limits to reproductive growth**. Logistic growth occurs when a population grows rapidly initially but then slows down as it approaches the carrying capacity of its environment. This is typically due to limits on resources (such as food, space, and shelter) and increased competition as the population size increases, leading to a stabilization of growth as it reaches the limits imposed by environmental factors.

The statement that most accurately reflects the theory of biological evolution through natural selection is: **b. Individuals with certain genetic traits are more likely to survive and reproduce under a specific set of environmental conditions.** This statement captures the essence of natural selection, which involves the differential survival and reproduction of individuals based on genetic variations that confer advantages in a particular

The most accurate statement about a threatened species is: **d. It is likely to become endangered in the near future.** A threatened species is one that is at risk of becoming endangered in the foreseeable future, indicating it is not currently endangered but may soon reach that status if conservation measures are not taken.

The Jacaranda tree that has been deliberately introduced into South African ecosystems is called a **exotic** species. So the correct answer is: a. exotic

b. The precautionary principle The precautionary principle advises taking preventive action in the face of uncertainty, especially in environmental and ecological matters. Given the potential unforeseen consequences of introducing non-native species, applying this principle is advisable to mitigate risks and protect ecosystems.

The correct answer is: b. Background extinction

The correct answer is **c. Functional diversity**. Functional diversity refers to the range of different biological functions or roles that species within an ecosystem perform, which enables interactions between species and contributes to ecosystem resilience and productivity.

d. endemic Biodiversity hotspots are geographical areas that contain high numbers of endemic species, which are species that are not found anywhere else in the world.

Ecological biogeography primarily focuses on: **c. studies the current factors affecting the distribution of plants and animals** While aspects of the other options may relate to broader biogeography or ecological studies, option c most accurately captures the essence of ecological biogeography.

In a food chain, cats and wolves are both carnivorous animals, but they operate at different levels depending on their specific diets and roles in their ecosystems. In this context: - **Cats** (domestic cats) are typically considered secondary consumers as they primarily eat primary consumers (like rodents). - **Wolves** are also secondary consumers, but they can be classified as tertiary consumers in ecosystems where they prey on other

To accurately classify the animals represented in the images, I would need to know which specific animals they are, as the classification depends on their role in the food chain. Here’s a brief explanation for each classification: a. **Primary consumers** - These are typically herbivores that eat producers (plants). b. **Detritivores** - These organisms consume dead organic matter and help in decomposition. c. **Tertiary consumers** -

Without being able to see the image, I can't directly determine which species interaction it represents. However, I can help you identify each type of interaction: a. **Predation**: One species (predator) kills and eats another (prey). b. **Mutualism**: Both species benefit from the interaction. c. **Parasitism**: One species (the parasite) benefits at the expense of the other (the host). d. **Commensalism**: One species benefits while the