Whales in the order mysteceti are larger than whales in order odontoceti. which of the following best explains this?
whales in order mysteceti are filter feeders and obtain higher levels of energy by consuming krill, zooplankton, and small fish.
whales in order mysteceti are toothed and therefore are high level predators and obtain higher levels of energy by consuming large fish, squid, and seals.
whales in order odontoceti are filter feeders and obtain higher levels of energy by consuming krill, zooplankton, and small fish.
whales in order odontoceti are toothed and therefore are hi
A. Large atoms have valence electrons farther from the nucleus and lose them more readily, so they are more reactive than small atoms.
For example, the valence electron of a small atom like Li is tightly held. Lithium gently fizzes on the surface as it reacts with the water to produce hydrogen.
In contrast, the valence electron of a large atom like Cs is so loosely held that cesium exlodes on contact with water.
A. Large atoms have valence electrons farther from the nucleus and lose them more readily
Large atoms have more energy levels, and the valence electron is farther from the nucleus, so the attractive force between this electron and the nucleus is weak. It will be necessary less energy for this atom loses an electron than a smaller atom. Large atoms lose their electrons more readily.
C , Large atoms have a greater number of electrons that they can lose during a reaction.
Ecologists often work at five broad levels, sometimes discretely and sometimes with overlap: organism, population, community, ecosystem, and biosphere.
Organisms make up a population. Multiple populations of different species make up a community. Communities in a particular area make up an ecosystem. All of the ecosystems on Earth make up the biosphere.
From smallest to largest:
Organism: Organismal ecologists study adaptations, beneficial features arising by natural selection, that allow organisms to live in specific habitats. These adaptations can be morphological, physiological, or behavioral.
Population: A population is a group of organisms of the same species that live in the same area at the same time. Population ecologists study the size, density, and structure of populations and how they change over time.
Community: A biological community consists of all the populations of different species that live in a given area. Community ecologists focus on interactions between populations and how these interactions shape the community.
Ecosystem: An ecosystem consists of all the biotic and abiotic factors that influence that community. Ecosystem ecologists often focus on flow of energy and recycling of nutrients.
Biosphere: The biosphere is planet Earth, viewed as an ecological system. Ecologists working at the biosphere level may study global patterns—for example, climate or species distribution—interactions among ecosystems, and phenomena that affect the entire globe, such as climate change.
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