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butalik [34]
2 years ago
11

What is the specific function of a heterocyst cell of an Anabanea filament?

Biology
1 answer:
murzikaleks [220]2 years ago
3 0
Heterocyst-forming cyanobacteria differentiate highly specialized cells to provide fixed nitrogen to the vegetative cells in a filament. In the presence of a source of combined nitrogen such as nitrate or ammonium, Anabaena PCC 7120 grows as long filaments containing hundreds of photosynthetic vegetative cells.
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Homeostasis involves the maintenance of constant conditions in an organism. What might happen to a protein if homeostasis is dis
meriva
This was answered else where on Brainly, and this is what they said,

"Most proteins in the living organisms are enzymes and they required specific optimum conditions in order to function optimally. Disruption in the homeostasis will leads to deactivation of these proteins. For instance, if the temperature needed for a protein to work optimally has been exceeded, the protein may be denatured and will be unable to perform its needed functions, this may result in several adverse effects in the organism."
7 0
3 years ago
Read 2 more answers
Developmental psychologists study physical, cognitive, and ________ changes throughout the human life span.
statuscvo [17]

Answer:social,intellectual,perceptual,personality and emotional growth.

Explanation:

The study of development psychology is important in understanding how humans mature.The role of a development psychologist is to study the changes in human development across the life span.This changes include:

•physical

•cognitive

•social

•intellectual

•perceptual

•personality

•emotional growth

5 0
3 years ago
Which would be a consequence of the removal of predators from a population such as the Trinidadian guppy population?a .The nitro
natulia [17]

Answer:

The correct answer is option b. "Guppy color patterns would change; guppies would produce fewer but larger offspring; the nitrogen excretion rate would increase and the rate of growth of primary producers such as algae would increase".

Explanation:

The Trinidadian guppy is a species of fish with the scientific name <em>Poecilia reticulata</em>. Just like almost all species, its population is regulated for multiple factors, one of them being the presence of predators. The removal of Trinidadian guppy predators would result in multiple consequences:

- Guppy color patterns would change. The fish have a complex coloration determined largely by predation avoidance.

- Guppies would produce fewer but larger offspring. This adaptation has been proved in an experiment at which the fish was introduced one a low predation environment. The report proved that evolution can take place in less than 10 years.

- The nitrogen excretion rate would increase. It has been reported that predation reduce Trinidadian guppy nitrogen excretion by 40%. Removing the predators will case the nitrogen excretion rate to increase due to an increase in the fish food intake.

- The rate of growth of primary producers such as algae would increase. This is an effect of the increase of nitrogen excretion rate, which benefits algae population to growth.

8 0
2 years ago
Define hypothesis and give an example of one.
Len [333]

Answer: hypothesis is a if then statement for ex

Explanation:ex: if I study for a test then I will ace it

5 0
3 years ago
Endosymbiosis of cyanobacteria is widely accepted as an explanation for the development of chloroplasts. The presence of endosym
lilavasa [31]

Answer:

The correct answer is- photosynthesis

Explanation:

According to the endosymbiotic theory, an ancestral cell engulfed a cyanobacteria and lived in symbiotic association with that bacteria and over time this bacteria evolved into the chloroplast and the ancestral cell developed into plant cell.

So as cyanobacteria was the first aerobic cell that can evolve oxygen and can do photosynthesis to produce organic food so it could be concluded that the presence of endosymbiotic cyanobacteria provided a cell with the advantage of photosynthesis.

3 0
3 years ago
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