The Homework Help Thread

[77horses]

Hello everyone!

For some of us, we may still be in school, or in college. And, for a great majority of us, we dislike the tons of homework, projects, and assignments that we often get, especially for those in school. I, from experience, know what it feels like to have a ton of homework. I currently have three separate projects to do for an English class, and I tend to be a procrastinator. In fact, I really haven't started any of them...

I know there are a lot of intelligent members here who have a lot of knowledge about certain subjects. Some of you might be really good with mathematics, and some of you might be really good with science. Or maybe some of you know some really good studying methods. So if you happen to stop by and see a question based on a subject that you know a lot about, please know that your knowledge is greatly appreciated and could really help someone with a subject they are struggling in.

So lets get those minds working and use our knowledge for the benefit of the whole BYC community!

This thread is for those who might need some help with some homework, or if they have a quick question about their homework, or even for help and advice about studying for an upcoming test or quiz. Of course, please don't use it for getting answers for your homework.

We are here to help you find the answer yourself, and not to give you it.

Feel free to stop by any time to either share some knowledge with someone who needs help, and/or to ask questions, and hopefully there will be some people here to help!

 

[Teach97]

cool idea...I will check-in from time to time...might be of some use considering they let me teach! science, math, and ag all fall within my bag of tricks...can even help with psychology stuff...at least I passed the classes!

 

[Yessur Ebob]

This is a neat idea. I might just have to use it some.

 

[77horses]

Great! Glad you guys like it!

As for me, it should also help me, too...I tend to procrastinate quite a lot, and BYC is one of the things that causes me to procrastinate,

so why not get some homework done while on BYC by coming to this thread?

Right now, I have three different projects to do and some other homework...But I don't think I need any help with it, really. Math is the subject that I struggle with, so I'll probably stop by once in a while if I ever need help with my math homework.

 

[awesomefowl]

Umm......
Biology:

Kingdoms:

Monera - single celled prokaryotic organisms
Protista - singled celled eukaryotic organisms
Fungi
Animalia
Plantae

(sorry I'm not very good at this sort of thing!)

 

[Nekhebet]

Quote:
what about them? I passed organismal biology last spring, was there something you needed?

 

[77horses]

Quote:
what about them? I passed organismal biology last spring, was there something you needed?

I'm guessing they need to know what is included in these kingdoms, in general? Like the type of organisms?

 

[Nekhebet]

Here are my notes for Animalia:

1) Nutrition: heterotrophic by ingestion
2) Cell Structure and Specialization
-animals are Multicellular eukaryotes
-Their cells lack cell walls
3) Animal bodies typically have cells organized in tissues, classified as epithelial, connective, muscle, and nervous. Types of Epithelium:
a. Simple squamous (one layer)
b. Simple cuboidal
c. Simple Columnar
d. Transitional
e. Stratified squamous
f. Stratified cuboidal
g. Pseudostratified columnar (attached to same basement membrane, thus not stratified)
• Epithelial tissue covers the outside of the body and lines the organs and cavities within the body
• It contains cells that are closely joined
• Some epithelial tissues are specialized for secretion or absorption.
• Exocrine versus endocrine glands: both formed from epithelial tissues.
Exocrine—secrete onto a surface through ducts. (Sweat glands, sebaceous)
Endocrine—secrete into the bloodstream; no ducts. (Pancreas); hormones.
• Connective tissue mainly binds and supports other tissues
o Matrix—material between cells
-It contains sparsely packed cells scattered throughout an extracellular matrix
-Ex) bone, blood, adipose tissue.
• Muscle tissue consists of long cells called muscle fibers, which contract in response to nerve signals: cardiac, skeletal, smooth
• Nervous tissue senses stimuli and transmits signals throughout the animal.
o (labeled neuron)
o Other specialized cells n nervous tissue support and protect the neurons
o Neuroglia
 Schwann cellsmyelin sheath
4) In all but the simplest animals, tissues are organized into organs (LE 40-6) (picture of lumen of stomach)
i. Mucosa: an epithelial layer that lines the lumen
ii. Submucosa: a matrix of connective tissue that contains lood vessels and nerves
iii. Muscularis: consists mainly of smooth muscle tissue
iv. Serosa: a thin layer of connective and epithelial tissue external to the muscularis
Organs make up organ systems that carry out the major body functions of most animals (Table 40.1)
5) Animals share a physiological need to maintain homeostasis (regulating their internal environment in the face of external change):
a. Material exchange is easy for single celled protists and simple animals with bodies no thicker than two tissue layers.

 

[Nekhebet]

Fungi:

Applied Mycology (Fungi) Chapter 31
Distinctive features of Fungi:
1) Heterotrophic nutrition by absorption.
2) Vegetative portion of body is usually a mycelium composed of branching hyphae.
3) Fungi secrete exoenzymes that break down complex molecules, and then they absorb the smaller components.
4) Fungi exhibit diverse lifestyles. (Predators, decomposers, parasites (pathogens), mutualistic symbionts.)
5) Cell structure: cell walls made of chitin.
a. Spore, Hypha, Haustorium, Myceluim, Coenocytic hypha, Septate hypha.
b. Septa: cell walls between compartments in () hyphae.
c. Some fungi are coenocytic; in which hyphae lack septa
d. Haustoria allow penetration into tissues of organisms.
6) Fungi reproduce by spores.
Fungi can produce spores asexually or sexually (Insert Chart from Powerpoint)
Plasmogamy; heterokaryotic. “Sexual” life cycle stage unique to fungi.
Fairy Ring: The growth of the mycelium is a form of asexual propagation. The mushrooms are “fruiting bodies” –final products of sexual reproduction.


*********this is just the beginning of the notes, everything else talks about specific types of fungi and specialized stuff....this defines fungi somewhat*******

 

[Nekhebet]

Plantae:

4/21/10 Kingdom Plantae-general characteristics
1) Cell structure: vacuole, chloroplast, cell wall
2) Biochemical components of plant cells:
a. Chlorophyll a as a primary pigment
b. Cellulose in cell walls; plant
c. Starch for energy storage; amylase.
3) Alternation of generations (Plant Life Cycle): Diploid Multicellular organism (sporophyte) . Haploid Multicellular organism (gametophyte). Compare plant and animal life cycle: our haploid stage is reproductive cells, which are not Multicellular.

Two major types of plants: Vascular vs. Nonvascular.
Plant evolution: trend similar to animals with respect to adaptations to life on land. “Ancestral green alga”.


********Again, these are just the beginnings of each section describing the differences between Animalia, Plantae and Fungi. Animalia is heterotropthic by ingestion, meaning they gain their nutrition by ingesting OTHER THINGS (hetero). Fungi are heterotrophic by absorbtion...their hypha go into the substrate, secrete enzymes absorb the nutrients.

I'm not sure exactly what you want definition wise, but there are differences in movement capability and gas exchange mechanisms as well. Again, not sure what you want exactly. xD