Where do seahorse eggs develop?

Instead of females, male seahorses carry the developing seahorse embryos in a kangaroo-like pouch. During mating season, the female deposits her eggs into the pouch, and the male fertilizes them. After about two weeks of development, out pop the seahorse fry, ready to swim off and explore the ocean world.

Where does the asexual reproduction takes place?

Asexual reproduction takes place in lower animals and plants. It is a type of reproduction in which off springs are produced from a single parent cell and has the same genetic code as the parent.

Which of the following is true about asexual reproduction?

Asexual reproduction is a mode of reproduction by which offspring arise from a single organism, and inherit the genes of that parent only; it is reproduction which almost never involves ploidy or reduction. The offspring will be exact genetic copies of the parent, except in the specific case of automixis.

Which of the following plants reproduce asexually?

Natural Methods of Asexual Reproduction Many plants—like ginger, onion, gladioli, and dahlia—continue to grow from buds that are present on the surface of the stem. In some plants, such as the sweet potato, adventitious roots or runners can give rise to new plants (Figure 2).

Which of the following reproduces asexual method?

Animals that reproduce asexually include planarians, many annelid worms including polychaetes and some oligochaetes, turbellarians and sea stars. Many fungi and plants reproduce asexually. Some plants have specialized structures for reproduction via fragmentation, such as gemmae in liverworts.

Which sharks are asexual?

Leopard shark makes world-first switch from sexual to asexual reproduction. A leopard shark in an Australian aquarium has reproduced asexually after being separated from her mate.

Which type of asexual reproduction occurs in yeast?

As you know, mitosis is an important component of cell division, and yeast are peculiar in that they divide asymmetrically via a mechanism for asexual reproduction, known as budding.

Why do amoebas reproduce asexually?

Amoeba reproduces asexually through binary fission. In this process, an individual divides itself into two daughter cells. These are genetically identical to each other.

Why do some organisms reproduce sexually and asexually?

Why can some organisms reproduce both asexually and sexually? Typically, when the environment is rich and abundant with resources, these species will undergo asexual reproduction. However, when environments become harsh, and resources are scarce, these species may switch to sexual reproduction.

Why does yeast reproduce asexually?

Asexual reproduction is a result of mitosis (cell division) in which the cell simply produces another copy of itself – this is called “budding.” It turns out the process of budding is essential to how the multicellular yeast work.

Why is binary fission an asexual process quizlet?

Why is binary fission as asexual process? A. It occurs only in prokaryotes. During binary fission, DNA first replicates, then the two chromosomes attach to the cell membrane.

Why is binary fission classified as asexual reproduction?

Binary fission is asexual reproduction because during this process one bacterial cell splits into two.

Why is binary fission considered asexual reproduction?

Binary fission is asexual reproduction because during this process one bacterial cell splits into two.

How do sea anemones breathe?

Sea anemones breathe through the general body surface. There are no special organs.

Can any human breathe underwater?

Humans cannot breathe underwater because our lungs do not have enough surface area to absorb enough oxygen from water, and the lining in our lungs is adapted to handle air rather than water. However, there have been experiments with humans breathing other liquids, like fluorocarbons. … How do fish rise and sink in water?

Can insects hold breath?

Scientists have known that some insects can hold their breath for hours or even days. A new study suggests why: Too much air would kill them. Insects breathe in and out through holes, called spiracles, all over their bodies. Some insects close the holes now and then.

Can mollusks breathe air?

All, however, whatever their systematic origin, have in common that they breathe dry air. Basically all molluscs breathe by gills that are called ctenidia (comb-gills) because of their comb-like shape. In terrestrial molluscs this respiration organ is reduced, but still respiration takes place in the pallial cavity.

Can sea urchins breathe out of water?

The shingle urchin (Colobocentrotus atratus), which lives on exposed shorelines, is particularly resistant to wave action. It is one of the few sea urchin that can survive many hours out of water.

Can the skin take up oxygen?

The skin is the only organ besides the lungs that is directly exposed to atmospheric oxygen. Apart from the stratum corneum, oxygen is consumed in all layers of the epidermis and dermis.

Do anemones breathe oxygen?

Now, Chadwick’s team has found that the fish provide another secret service: They help the anemones breathe at night. Sea anemones can do very little to control the flow of water across their bodies, and they rely on local currents to bring in oxygen and nutrients.

Do anemones have gills?

These fluffy looking gills have a very large surface area (like human lungs) and extract oxygen for the molluscs. Some very limited oxygen exchange might even occur across their skin! Sea anemones can pull oxygen in from the surrounding sea water through the skin on their body, tentacles, and gut.

Do cnidarians have gills?

Gas Exchange in Cnidarians Cnidarians don’t have lungs, and even though they live in aquatic environments they don’t have gills either. So they have to exchange ‘good’ and ‘bad’ gases a little bit differently. Instead of breathing, gas exchange in Cnidarians occurs through direct diffusion.

Do crab breathe through lungs?

Land crabs have a sort of lung, made from a modified gill chamber. … The coconut crab is an example: this huge crab is related to hermit crabs but it is terrestrial, using lungs to breathe. Most terrestrial arthropods (crabs, spiders, insects etc.) have some form of hemocyanin in the blood.

Do crabs breathe through gills?

Like fishes, crabs use their gills to absorb oxygen from water. As the frantic flopping of any fish that breaches the water’s surface indicates, fishes do not share crabs’ ability to adapt to breathing in the atmosphere.

Do echinoderms breathe using gills?

In general, echinoderms typically respire by simple diffusion, using gills or specialized projections, like tube feet or pockets, to circulate water and oxygen through their bodies.

Do echinoderms have gills?

Echinoderms have an open circulatory system, and respiration and excretion occur by means of dermal gills, small finger-like projections of the skin that stick out near the base of the spines on the surface. The large coelom also functions in circulation and in respiration.