A shell is considered to be biotic primarily because it came from something living. Shells are the hard outer structures produced by certain organisms, such as mollusks (e.g., clams, snails, and oysters). These organisms are alive, and their shells are a product of their biological processes. While the shell itself is not alive in the same way that the organism was, it is derived from a living being, which is why it is classified as biotic material.
Why is a shell considered to be biotic?
because it is found in the biosphere
because it was alive
because it came from something living
because it is not living
11 answers
Which describes a grizzly bear’s habitat?
all the biotic factors in the ecosystem
all the abiotic factors in the ecosystem
the role of the bear in the ecosystem
the physical area where the bear lives
all the biotic factors in the ecosystem
all the abiotic factors in the ecosystem
the role of the bear in the ecosystem
the physical area where the bear lives
The description that best fits a grizzly bear’s habitat is the physical area where the bear lives. Habitat refers to the specific environment or location that provides the necessary conditions for an organism to live, find food, reproduce, and carry out its life processes. This includes the physical characteristics of the environment, such as forests, mountains, and rivers, where grizzly bears typically reside.
Many organisms depend on the land as a food source. Seasons can affect the amount of food that is available to these organisms. How would a long, cold winter most likely affect a population of deer?
The deer population will decrease.
The deer population will increase.
The deer population will remain almost the same.
The deer population will rebound the next year.
The deer population will decrease.
The deer population will increase.
The deer population will remain almost the same.
The deer population will rebound the next year.
A long, cold winter would most likely result in the deer population will decrease. Cold winters can lead to food scarcity for deer, as snow may cover vegetation and reduce their access to food sources. Additionally, harsh winter conditions can increase stress on deer, lead to higher mortality rates, and affect their reproduction in the following seasons. Therefore, the population is likely to decrease as a result of these factors.
The Phoenix area of the Southwestern desert typically receives 8 inches of precipitation yearly, in two seasonal patterns. Even though it is an arid region, it has high biological diversity. Thin-leaf trees abound, such as palo verde and desert ironwoods. Wide varieties of cactus thrive, including the cholla, prickly pear, and saguaro. Wildlife includes insects, reptiles, many bird species, small rodents, and other mammals. Which factor in the Southwestern desert ecosystem is abiotic?
a prickly pear seed
a fallen palo verde leaf
a rainstorm
a wolf spider
a prickly pear seed
a fallen palo verde leaf
a rainstorm
a wolf spider
In the context of the Southwestern desert ecosystem, the factor that is abiotic is a rainstorm.
Abiotic factors are non-living components of an ecosystem, such as climate, water, soil, and sunlight. A rainstorm represents a weather event, which is an abiotic factor. The other options—prickly pear seed, fallen palo verde leaf, and wolf spider—are all biotic factors, as they are derived from living organisms.
A population of giraffes on a square kilometer of the African savannah contains sixteen individuals. Generally, the giraffes stay in smaller groups, surrounding scattered watering holes, where there is abundant vegetation.
What is the size of the giraffe population?_________
What is the population density?_________________
What type of distribution does this giraffe population display?
uniform
random
clumped
What is the size of the giraffe population?_________
What is the population density?_________________
What type of distribution does this giraffe population display?
uniform
random
clumped
Based on the information provided:
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Size of the giraffe population: The size of the giraffe population is 16 individuals.
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Population density: To find the population density, you divide the number of individuals by the area they occupy. In this case, the area is 1 square kilometer with 16 individuals. Thus, the population density is: \[ \text{Population density} = \frac{\text{Number of Individuals}}{\text{Area}} = \frac{16 \text{ individuals}}{1 \text{ km}^2} = 16 \text{ individuals per km}^2. \]
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Type of distribution: The giraffe population displays a clumped distribution. This is indicated by the fact that they stay in smaller groups around scattered watering holes, suggesting that they are not evenly distributed across the area but instead gather in specific locations where resources like water and vegetation are abundant.
i have no idea what you said here 2. **Population density**: To find the population density, you divide the number of individuals by the area they occupy. In this case, the area is 1 square kilometer with 16 individuals. Thus, the population density is:
\[
\text{Population density} = \frac{\text{Number of Individuals}}{\text{Area}} = \frac{16 \text{ individuals}}{1 \text{ km}^2} = 16 \text{ individuals per km}^2.
\] just say the population density in words
\[
\text{Population density} = \frac{\text{Number of Individuals}}{\text{Area}} = \frac{16 \text{ individuals}}{1 \text{ km}^2} = 16 \text{ individuals per km}^2.
\] just say the population density in words
The population density of the giraffes is 16 individuals per square kilometer.