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krok68 [10]
4 years ago
7

Cells are limited in size by their suface areas and..?

Biology
1 answer:
weeeeeb [17]3 years ago
7 0
Cells are limited in size by their surface area and volume. A cell does not possess a mouth, lungs and digestive system. Every process has to happen directly or indirectly through the cell membrane. The relationship between the volume of cell contents and the surface area of the cell membrane becomes the limiting factor in how big a cell gets to be. If it gets too big it may starve due to lack of incoming nutrients, or poison itself because it can not get rid of waste rapidly enough.
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Protist reproduction
solong [7]

Answer:

e. is mostly asexual, with sexual as a second option.

Explanation:

Protist are unicelluar eukaryotic  microorganims. Example include:

<u><em>Amoeba</em></u> <u><em>proteus</em></u>

<u><em>Euglena</em></u><em> </em><u><em>viridis</em></u>

Dinoflagellates, etc.

Among the species of Protists, each species exhibit a unique way of reproduction. Generally, in Protist there are two types of reproduction, these are asexual reproduction and sexual reproduction. With asexual reproduction being the primary mode of reproduction in most protists.

Protist reproduce asexual by binary fission or by budding.

Binary fission occurs when a single protist divides its nucleus and then divides itself into two separate organisms.

Budding occurs when a new organism grows from the body of the parent organism. The new organism may separate from the parent or remain attached, forming colonies.

They also reproduce sexually by conjugation.

Sexual reproduction by conjugation requires two parent organisms contributing to the genetic material of the offspring. The essence of conjugation is to produce a new offspring with a wider genetic variability i.e the offspring being genetically different from the parent organisms.

4 0
3 years ago
In which ways is photosynthesis important to life on Earth? Check all that apply. makes food for all organisms. adds oxygen to t
ladessa [460]

The right options are; makes food for all organisms, adds oxygen to the atmosphere, is a source of medicines and fibers, is a source of building materials and it provides animal habitat.

Photosynthesis is a process by which green plants and some other autotrophs use light energy in chloroplasts to generate carbohydrates (food) from carbon dioxide and water while oxygen is being released as a by-product. Photosynthesis is essential to all living organisms on earth because it is the main source of oxygen in the atmosphere. Photosynthesis provides animal habitat, it provides food for all organisms (directly for plants and indirectly for animals). Plants and trees produce their foods through photosynthesis and are used as medicines and fibers, and as building materials.  

3 0
3 years ago
Read 2 more answers
EASY BIO QUESTION
lozanna [386]
I would say hydrophilic molecules that provide energy for the body. Hope it helps!
4 0
3 years ago
Read 2 more answers
Explain why the ratio of motor neurons to muscle fibers is greater in muscles that control eye movement than in postural muscles
EleoNora [17]

Answer:

The muscles of the eye cover a greater number and in turn carry out greater fine motor skills.

Explanation:

Alpha motor neurons are neurons that invent the skeletal muscle, that is, striated, so that through the motor plate that is the unit that unites them, an action potential is transmitted that contracts the sarcomeros of the elastic fibers and the z lines. come closer, each eye movement is much more precise than the locomotion of the lower limb, which carries greater innervation in each muscle bundle due to the specificity of the movement, this is how more alpha motor neurons are required to mobilize the eye than a leg.

7 0
3 years ago
What abdominalpelvic quadrant is the rectum in
pochemuha

Answer:

The rectum is located at the "left lower portion" of the abdominal pelvic region.

Explanation:

The rectum is present at the left lower portion of the abdominal area which gives partial view of the small intestine. Descending to it a sigmoid colon, rectum, left ureter and urinary bladder is present. The diameter of the rectum is like a sigmoid colon near the onset. However, it is bigger at the anus as it forms the rectal ampulla near it. The main function of the rectal ampulla is to store the feces for temporary period. The size of the rectum is 8 inch and it has connected the colon as well as the anus.

8 0
3 years ago
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