Fungi absorb their nutrients in three different ways: (1) saprobes decompose dead organic matter; (2) parasites feed on living hosts; and (3) mutualists live in symbiotic unions with other living organisms. Saprophytic fungi, such as edible meadow mushrooms ( Agaricus campestris ), shiitake ( ...
Double Fertilization Fertilization in flowering plants is unique among all known organisms, in that not one but two cells are fertilized, in a process called double fertilization. One spermnucleusin the pollen tube fuses with the egg cell in the embryo sac, and the other sperm nucleus fuses wit...
Evolutionary adaptations allow organisms to survive and reproduce in different ___. A. environments B. species C. populations D. ecosystems 相关知识点: 试题来源: 解析 A。进化适应使生物能够在不同的环境中生存和繁殖。选项 B“species”是物种,不是生物生存和繁殖的条件。选项 C“populations”是种群...
1. What are two different ways that random mating can be accomplished? 2. Which group of plants use pollen for reproduction? Reproduction: Reproduction is a necessary component of life in which gametes are brought together to form a zygote. Dif...
What are some ways that plants reproduce sexually using non-living mechanisms? What happens when genetically-modified crops are exposed to these living organisms and n What is the difference between r-selected species and K-selected species? Give an example of each. Explain how you may get a...
Although sexual eukaryotes have to recombine to reproduce as organisms, not all eukaryotes are sexual. Some highly recombinogenic bacteria can be treated as effectively sexual in population genetic models, even if they reproduce clonally as organisms. Authors also make too much of eukaryotic ...
How will an organisms be benefited it it reproduces through spores? 03:04 Can you think of reasons why more complex organisms cannot give rise t... 02:56 Why is vegetative propagation practised for growing some types of plan... 03:49 Why is DNA copying an essential part of the process...
By leaving an impact on their physical and social environment, organisms may affect the evolution of their own descendants, quite apart from changing the conditions for themselves. Some of the impact is subtle, such as when a plant sheds its leaves that fall to the ground and change the ...
entitledThe Formation of Vegetable Mould Through the Action of Worms.At the time, it was a bestseller and even sold more copies upon the weeks following its initial release thanOn the Origin of Speciesfor that Darwin is now more widely known. Some of the ways in that earthworms benefit our...
- A species is often defined as a group of organisms that can interbreed and produce fertile offspring. This is known as the biological species concept. 2. Sexual Reproduction: - One of the primary ways to categorize animals into different species is by their ability to reproduce. Animals of...