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saul85 [17]
3 years ago
12

What is the structure of nucleus

Biology
1 answer:
babunello [35]3 years ago
4 0
The structure of the nucleus is that it has the protons (+) and the neutrons (0).
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HELP ME !!!!HELP ME PLEASE
postnew [5]

Answer:

Abiotic is basically a non living factor so the answer is

D. Sunlight, temperature , conductivity, dissolved oxygen.

All other options contain one biotic or living factor like algae, star fish and crabs these aren't Abiotic.

3 0
3 years ago
What type of person is an entrepreneur?
Fed [463]
All above I think I don't know
6 0
3 years ago
HELP ILL GIVE BRAINLIEST
katrin2010 [14]

Answer:option d

Explanation:Ocean acidification is the ongoing decrease in the pH of the Earth's oceans, caused by the uptake of carbon dioxide (CO. 2) from the atmosphere. Seawater is slightly basic (meaning pH > 7), and ocean acidification involves a shift towards pH-neutral conditions rather than a transition to acidic conditions (pH < 7).

4 0
3 years ago
How biodiversity is affected by speciation, disruptive, stabilizing, and directional selection?
VikaD [51]

There are several ways selection can affect population variation:

stabilizing selection

directional selection

diversifying selection

frequency-dependent selection

sexual selection

As natural selection influences the allele frequencies in a population, individuals can either become more or less genetically similar and the phenotypes displayed can become more similar or more disparate. In the end, natural selection cannot produce perfect organisms from scratch, it can only generate populations that are better adapted to survive and successfully reproduce in their environments through the aforementioned selections.


Hope it helped, much love

The jokester, hehe

6 0
3 years ago
Do your results imply that the uptake of water by radish seeds is mainly a physical process or a chemical (metabolic) process?
umka2103 [35]

Answer:

physical process

Explanation:

Assuming that there are no latency mechanisms that prevent germination, several factors are required for the embryo contained in the seed to restart its development.

Water Absorption

Embibition: It is a special case of a <u>physical phenomenon</u> called diffusion, and as such, there is a diffusion gradient. It is characterized by an increase in volume of the substance or body that embeds and is closely related to the properties of colloidal materials. The colloidal particles in the seed form a moderately rigid miscelar network, in which electric charges of opposite signs are oriented in a defined manner. When water penetrates the seed, one fraction occupies the free spaces and another chemically joins the substances of which the seeds are composed. The volume of the seeds increases with the embibition, but the final volume of the system (seed + water) is smaller than the sum of the initial individual volumes of seeds and water; This contraction of the system is proof of the occupation of the free spaces within the seed and the absorption of water in the colloidal matrix.

The embibition rate is affected by several factors that can determine the germination response of the seeds.

6 0
3 years ago
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