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emmainna [20.7K]
3 years ago
5

An experiment is designed to determine specific cell types involved in cell-mediated immune response. The experimenter is intere

sted in finding cells that attack the antigen directly by altering the cell membrane and causing cell lysis. Which cells should be isolated?
Biology
1 answer:
Fofino [41]3 years ago
7 0

Answer:

c

Explanation:

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3. While walking in the forest floor, you found an organism that has the following characteristics: had the consistency and appe
Leviafan [203]

Answer:

What are stinkhorns?  Stinkhorns are mushrooms that are found from the tropics to more temperate regions such as Wisconsin.  They can suddenly appear in mulch, lawns, and areas with bare soil.  These visually-shocking fungi get their common name from their characteristic, unpleasant odor.  Although they are often unwanted additions to home gardens, stinkhorns do not cause plant disease.  Because stinkhorns can grow on dead organic material, they actually are beneficial in that they contribute to the recycling of plant debris into nutrients that improve soil fertility and can be used by garden plants.

What do stinkhorns look like?  Stinkhorns grow into various shapes, but they are bestknown for looking like horns or penises.  A few species grow several appendages, resulting in an octopus-like appearance.  Some species have a veil attached below the cap that resembles a lacey skirt flowing from the mushroom’s hollow stalk.  Stinkhorns can range in color from white, beige, and olive to bright orange or red with black accents.  The tips of mature stinkhorns are usually coated in a spore-containing slime.  Gardeners often discover immature stinkhorns as they dig in the soil.  The immature forms appear as whitish to pink or purple, egg-shaped masses.  Stinkhorns develop rapidly sometimes growing up to four to six inches per hour, and can generate enough force to break through asphalt.

Where do stinkhorns come from?  Stinkhorns are often first introduced into a garden in organic materials (e.g., soils and mulches) that contain microscopic hyphae (i.e., fungal threads) of stinkhorn fungi.  Once stinkhorns mature, they produce a pungent, off-putting odor that is reminiscent of rotting flesh or dung.  This smell may disgust people, but it attracts insects, particularly flies.  Flies and other insects eat the slimy material at the tips of stinkhorns and carry spores in this slime to new locations as they move around in the environment.  In many ways, this process is comparable to the distribution of pollen by bees (but of course without the more appealing scents associated with most flowers).

3 0
3 years ago
Which of the following statements is generally true of aneuploidies in newborns? a. An aneuploidy resulting in the deletion of a
Novay_Z [31]

Answer:

d. Monosomy X is the only viable monosomy known to occur in humans.

Explanation:

Human have 22 pair of homologous chromosomoses and an extra pair of sex chromosomes. While in males  the sex  chromosomes  are X and  Y , females have two chromosomes X . Anyway, in normal conditions the total number of chromosomomes that humans have in their cells is 46 (23 pair of chromosomes).  

Aneuploidy is a biological condition where an individual have an abnormal number of chromosomes in their cells.  In humans for examples, this would be a human having more or less than 46 chromosomes.

The Turner syndrome also called  monosomy X is an aneuploidy  where  one of the X chromosomes is missing in a female.  Although under constant supervision, people with Turner syndrome have viable healthy lives. However this is the only monosomy that occur in humans that is compatible with life.  

4 0
3 years ago
What type of unhealthful air population occurs when ozone near the ground mixes with other polluting gases?
klemol [59]

I believe the answer is smog

6 0
3 years ago
The total amount of exchangeable air is known as ________.
Rudiy27
It would be the vital capacity 
5 0
2 years ago
Which statement about DNA is NOT correct?
drek231 [11]

Answer:

B (2nd Option): DNA is single-stranded

Explanation:

A is correct: DNA is indeed found in the nucleus of eukaryotes.

B is incorrect: Although there can be single strands of DNA (ssDNA), DNA is usually double-stranded which is how it forms its characteristic double-helix shape.

C is correct: Deoxyribose is indeed the sugar in DNA (Deoxyribonucleic Acid)

D is correct: The two single ringed nitrogenous bases in DNA are thymine and cytosine, while the other two (Adenine and Guanine are double ringed.

Hope this helped!

4 0
3 years ago
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