Animal reproductive system, any of the organ systems by which animals reproduce, including gonads (sex organs), associated ducts and glands, and adaptations that aid in the union of gametes—reproductive cells, male or female, that are capable of produci
A group of organisms having many characteristics in common and ranking below a genus. Organisms that reproduce sexually and belong to the same species interbreed and produce fertile offspring. See Table attaxonomy. The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014...
Find a male if they are a female in order to reproduce Find any one member of their species to reproduce None of the answers are correct. 2. The bluehead wrasse is an example of a fish that: Can self-fertilize Can undergo sexual reversal ...
Two Asian longhorned ticks sit on a dime. The smaller of the two ticks on the left, is a nymph. The larger tick is an adult female. Males are rare. This tick can reproduce asexually. (James Gathany/CDC) Livestock, like cattle or sheep, appear to be in greater danger from the longh...
Even in those microorganisms that reproduce asexually (e.g., bacteria) exchanges of hereditary material take place; in the hermaphroditic plants and animals (e.g., the earthworm) self-fertilization is almost always prevented by anatomical specializations or by differing maturation times for male and...
Animals reproducesexually.They produce a haploidsperm cell(a male sex cell) and a haploidovum(a female sex cell) that unite at fertilization to form a diploidzygote. Conversely, some animals are capable of asexual reproduction. For instance, some cnidarians produce a genetic clone by budding. Ot...
Additionally, some animals practice sexual reproduction, while others can reproduce asexually. The reproductive strategies of animals are closely tied to their survival and the needs of their offspring. 动物在生态系统中的角色 Animals play crucial roles in ecosystems, often...
There are several types of asexual reproduction. Some creatures, such as the hydra reproduce by forming buds or polyps that then fall off to form an independent organism. Many worms, sea urchins, sponges and starfish reproduce through refragmentation. When a part is cut or broken off, new par...
animals reproduce sexually, but some are capable of asexual reproduction under certain circumstances. With the advent of electron microscopy and advanced biochemical analyses, intricate differences between simple and microscopic organisms were better understood, and many that were previously fit into the ...
Indeed, for many species such as the kobudai, the capacity to switch sex is highly adaptive. If an individual fish can reproduce as a female for the first portion of it’s life, then continue breeding as a male for the rest, it effectively doubles up on its reproductive output. Being ...