The correct answer is (a) irregular.
An irregular galaxy does not have any distinct or regular shape. They do not belong to any any regular class of the Hubble sequence. They are sometimes chaotic in appearance. Structurally these galaxies do not have spiral arm or nuclear bulge. Collectively these galaxy make up one fourth of all galaxies. They are small in size and one tenth the mass of Milky way galaxy.
B. Nutrients are lost from the ecosystem when organisms die.
C. The conversion of food into growth by an organism is not very efficient.
D. Energy is recycled by the decomposers back to the producers.
There are no more than five species in an ecosystem due to the conversion of food into growth by an organism is not very efficient. Thus option C is correct.
The food chain is a linear cyclical event where the transfer of nutrient and energy occur from one organism to the other.
Trophic level is defined as the stages involve in food chain which start with producers, primary, secondary and tertiary consumers.
The major parts of food chain are the sun is the primary source of energy.
Secondly producers include autotrophs such as plants, phytoplankton, cyanobacteria represent first tropic level in a food chain.
Consumers includes herbivores, the primary consumers which eat plants, carnivores are animals which eat other animals, parasites that live on other organisms, others are scavengers eat dead decaying matter.
Decomposers integral part of food chain get energy from dead or waste organic material.
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Answer:
Explanation:
Cells divide and reproduce in two ways, mitosis and meiosis.
Mitosis results in two identical daughter cells, whereas meiosis results in four cells.
Keys differences and similarities between the two types of cell division.
Mitosis Meiosis
cells created: two daughter cells four daughter cells
Ploidy Creates diploid daughter cells Creates haploid daughter cells
Genetics Daughter cells are Daughter cells are . . genetically identical genetically different
Why is there a meiosis II but not mitosis II?
Meiosis II is generally regarded as being very similar to mitosis, except for the presence of two parent cells, instead of only one. In both meiosis I and II, cytokinesis occurs, and there are two daughter cells per parent cell.
Answer:
Anaphase 1 of meiosis.
Explanation:
Alleles are the alternative form of the same gene and present on the same chromosome. The alleles get separate at the time of meiosis.
The separation of homologous chromosomes during Anaphase 1 allows the separation of alleles of a particular trait. The new combination of allele is possible during thus phase.
Thus, the correct answer is Anaphase 1.
Why you report a verified answer? u shouldve nhot ben lazy n put the a bc d
Answer:
All invertebrates except echinoderms are protostomes. Protostomes include the phylum: coelenterata, ctenophora, platyhelminths, nematyhelminths, annelida, arthropoda and mollusca.
Explanation:
Echinoderms and chordates have tube within tube type of body plan which has evolved along deuterostomic evolutionary line. Other similarities between echinoderms and chordates (which includes vertebrates) are:
-They possess a true coelom called enterocoelom.
- They have mesodermal skeleton made of calcareous plates or ossicles.