BIOLOGY MIDDLE SCHOOL

Which statement best describes the role of the cell membrane?A) It stores genetic material.

B) It breaks down food particles.

C) It encloses the cytoplasm.

D) It produces proteins.

Answers

Answer 1
Answer: Your answer would be C.It encloses the cytoplasm.
Answer 2
Answer: C.  The cell membrain is around the cell protecting, kind of like the membrain of an egg.

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Discuss the path and directional flow of energy

Answers

Answer:

The flow of energy in the ecosystem is generally unidirectional and there is loss of energy across each trophic levels successively.

Explanation:

The entry of energy occurs in the form of sunlight which is process by the plant through photosynthesis resulting in formation of nutrient essential for survival of plants. This plant energy then moves to the living organism feeding on it such as primary consumer. Here most of energy is used up and some energy is lost as heat. Likewise in the case of secondary consumers and tertiary consumers energy is used up with loss of some energy as heat at each level. The energy flow is unidirectional in the sense that it cannot be used back by the plant from the consumer levels. Thus the energy flows successively with loss at each level as heat.

How are the symbols written for alleles that share incomplete dominance?
Tysm ily ;)

Answers

In incomplete dominance, heterozygous phenotype is intermediate between two homozygous phenotypes. In this case, the symbols for alleles are capital letters. For example, allele A is responsible for red color of a flower, allele B is responsible for white color of the flower. Red flower plants have AA genotype, and white flower plants have BB genotype. By crossing plants with red flowers and white flowers, due to incomplete variance, the offspring will be heterozygozs plants (AB) with neither red nor white flowers, but pink flowers. Pink flowers have intermediate color between red and white flowers.

The aloe plant has thick, water-filled leaves covered with spikes. The flowers are high on a stalk, so that pollen can be quickly and easily released. What biome is the aloe BEST adapted for?A) tundra
B) desert
C) savanna
D) tropical rainforest

Answers

In this item, we are given the description of aloe in which it is said to have a thick, water-filled leaves which are covered in spikes. It also has flowers located high on the stalk for easy pollination. We are asked what biome does it belong.. The answer to this question is letter B. desert.
The correct answer is option B i.e Desert. The aloe plant has thick, water-filled leaves covered with spikes. The flowers are high on a stalk,so that pollen can be quickly and easily released. The desert biome is best adapted for aloe because aloe plant usuallly grows in open area under sunlight exposure where the intensity of sunlight is very high. Its grows in very rocky, dry and open areas.

If carbon dioxide, methane, and water vapor were not in the atmosphere, then what

Answers

Answer:

If a volume of air contains its maximum amount of water vapor and the temperature is ... millennia is controlled by non-condensable gases, mainly carbon dioxide, CO2, with smaller contributions from methane, CH4, nitrous oxide, ... If the amount of solar warming decreases, then the temperature of the Earth would decrease.

Explanation:

Red shift data shows that galaxies are:getting bigger
getting smaller
moving away
moving closer which one plz

Answers

Answer:

Option (3)

Explanation:

In astronomy, the redshift refers to the shifting of the beam (spectrum) of light towards the light of higher wavelength. The red coloured light has the highest wavelength. This shifting of light is due to the doppler effect, which states that the wavelength of light changes when the light source and the observer are constantly in motion with respect to each other.

Based on this observation and many other scientific investigations, the scientists have concluded that the redshift data indicates the expansion of the universe, where the distant galaxies are moving constantly and rapidly away from us.

Thus, the correct answer is option (3).
it's c. they are moving away

A Scientist Finds An Unusual Living Thing And Decides To Study It.

Answers

A scientist finds an unusual living thing and decides to study it. Which observation indicates that the living thing is among the smallest types of living things? A. It is multicellular. B. It possesses a membrane-bound nucleus. C. It possesses a hard outer shell. D. It does not have a nucleus.
i would go with B.
hope that this helps you! =)
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