Get premium membership and access questions with answers, video lessons as well as revision papers.
Male reproductive system in nematode.
-Most male nematodes have only a single testis attached to the Vas deferens which expands into a
seminal vesicle which connects to the cloaca.Each of them explained below:
a)Vas deferens – aka sperm duct, releases sperm.
b)Seminal vesicle – stores sperm cells.
c)Cloaca – hole that sperm is ejected from.
-They also have a flap of tissue called the bursa that aids in the transfer of sperm to the female genital pore.
Female reproductive system in Nematodes.
-Consists of a pair of ovaries attached to an oviduct that has a swollen proximal end that forms a seminal receptacle.
-Each oviduct becomes a tubular uterus, and the two uteri come together to form a vagina that opens to the outside through a genital pore.
jim items answered the question on February 18, 2019 at 13:15
- Briefly describe nervous system in Nematodes.(Solved)
Briefly describe nervous system in Nematodes.
Date posted: February 18, 2019. Answers (1)
- Discuss the three types of parasitic nematodes.(Solved)
Discuss the three types of parasitic nematodes.
Date posted: February 18, 2019. Answers (1)
- Explain how predators are adapted to capture their prey (Solved)
Explain how predators are adapted to capture their prey
Date posted: February 18, 2019. Answers (1)
- Explain why xylem vessels have dead cells(Solved)
Explain why xylem vessels have dead cells
Date posted: February 18, 2019. Answers (1)
- Explain conditions when most soil microorganisms are active in the soil ecosystem.(Solved)
Explain conditions when most soil microorganisms are active in the soil ecosystem.
Date posted: February 18, 2019. Answers (1)
- Discuss animal eat plant relationships using Fungi and Nematodes as an example in nitrogen fixation.(Solved)
Discuss animal eat plant relationships using Fungi and Nematodes as an example in nitrogen fixation.
Date posted: February 18, 2019. Answers (1)
- Discuss the soil food web found in most natural ecosystems.(Solved)
Discuss the soil food web found in most natural ecosystems.
Date posted: February 18, 2019. Answers (1)
- Discuss Linneaus’ hierarchy as classification method for microorganisms.(Solved)
Discuss Linneaus’ hierarchy as a classification method for microorganisms.
Date posted: February 18, 2019. Answers (1)
- Briefly explain how earthworms eat in the soil.(Solved)
Briefly explain how earthworms eat in the soil.
Date posted: February 18, 2019. Answers (1)
- Explain how earthworms move through the soil(Solved)
Explain how earthworms move through the soil.
Date posted: February 18, 2019. Answers (1)
- One square foot of soil has an array of small invertebrates, hundreds, or even thousands of species, many of which are still unknown to science.Discuss...(Solved)
One square foot of soil has an array of small invertebrates, hundreds, or even thousands of species, many of which are still unknown to science.Discuss at least 15 microorganism species showing their classification class.
Date posted: February 18, 2019. Answers (1)
- Discuss bio-pesticides as way of enhancing sustainable ecosystems under the following subheadings:
a)Define.
b)Types of bio-pesticides.
c)Examples.
d)Advantages for use.(Solved)
Discuss bio-pesticides as way of enhancing sustainable ecosystems under the following subheadings:
a)Define.
b)Types of bio-pesticides.
c)Examples.
d)Advantages for use.
Date posted: February 18, 2019. Answers (1)
- (a)(i)State two reasons why clot formation is important when a blood vessel is cut.
(ii)Explain what happens if a clot forms in a blood vessel in...(Solved)
(a)(i)State two reasons why clot formation is important when a blood vessel is cut.
(ii)Explain what happens if a clot forms in a blood vessel in the head.
(b)State two components of the diet that are needed in blood clotting.
(c)Name two proteins that are involved in clot formation.
Date posted: February 15, 2019. Answers (1)
- Giving their functions, state SIX enzymes involved in Eukaryotic DNA replication process.(Solved)
Giving their functions, state SIX enzymes involved in Eukaryotic DNA replication process.
Date posted: February 15, 2019. Answers (1)
- Discuss the various evidences which show that evolution has taken place.(Solved)
Discuss the various evidences which show that evolution has taken place.
Date posted: February 15, 2019. Answers (1)
- Outline FOUR main stages of DNA replication.(Solved)
Outline FOUR main stages of DNA replication.
Date posted: February 15, 2019. Answers (1)
- How are the following structures of a leaf adapted to their function?
(a)Petiole.
(b)Veins.
(c)Palisade mesophyl.
(d)Guard cells.(Solved)
How are the following structures of a leaf adapted to their function?
(a)Petiole.
(b)Veins.
(c)Palisade Mesophyl.
(d)Guard cells.
Date posted: February 15, 2019. Answers (1)
- Two pieces of raw potato chips A and B were placed in two different solutions in petridishes and left to stand for thirty minutes. At...(Solved)
Two pieces of raw potato chips A and B were placed in two different solutions in petridishes and left to stand for thirty minutes. At the end of the experiment, A was soft and a bit shrivelled, B was turgid and had increased in size.
(a)State the process that was being investigated.
(b)Account for the observations made in each case.
Date posted: February 15, 2019. Answers (1)
- In an experiment, a piece of brain was removed from a rat.It was later found that the rat had large fluctuation of body temperature. Suggest...(Solved)
In an experiment, a piece of brain was removed from a rat. It was later found that the rat had large fluctuation of body temperature. Suggest the part of brain which had been removed.
Date posted: February 15, 2019. Answers (1)
- Distinguish between:
(a)Genotype and phenotype.
(b)Haploidy and diploidy.(Solved)
Distinguish between:
(a)Genotype and phenotype.
(b)Haploidy and Diploidy.
Date posted: February 15, 2019. Answers (1)