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3 years ago

How does a vascular system serve the needs of a plant cell??

1 answer:

8 0

We first have to understand what a vascular system is. A vascular system consists of the water-carrying tube(xylem) and food-carrying tube(phloem). These 2 tubes are very essential for plants to survive. The xylem transports water to the leaves thru the stem to nourish the leaves so as to make food. The word equation is : Water + Carbon dioxide ----> Glucose + Oxygen. The phloem on the other hand transports the food from the leaves that creates them amd sent them to all parts of the plant. It is often a misconception that food is only sent to the fruits. The plant receives nutrition from the food that is made by the leaves. Overall the vascular system plays a very importamt roles in the survival of the plant.

To put it simple, think of the vascular system of a plant like the circulatory system of a human. Without the circulatory system, the human is unable to receive oxygen for breathing and remove carbon dioxide which is acidic in nature and pose a threat to the human body.

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If a rat births several offspring after fertilization, why will these offspring NOT be genetically identical to the mother

Nataly_w [17]

Answer: The offspring will not be genetically identical to the mother because the process of mitosis mixes chromosomes frome the mom and dad.

7 0

3 years ago

???????? ??????????????Help

defon

Biotic factors are those that are living in an ecosystem, such as plants and animals, while abiotic factors are those that are not, such as rocks, temperature, water, sunlight, soil etc.

C is correct for number 2 because broadleaf trees are a biotic factor, while precipitation, or rainwater, is abiotic.

A is incorrect because both are biotic factors, since both are living

B is incorrect because both are abiotic factors, since both are nonliving

D is incorrect because both are biotic factors, since both are living

6 0

4 years ago

The United States ranks 50th in the world for maternal mortality and 41st among industrialized nations for infant mortality rate

siniylev [52]

Answer:

Answer is B. Ensuring early and adequate prenatal care.

Explanation:

Prenatal care can be described as the care, such as information and medical care , given to pregnant women during pregnancy , before delivery.

This is very important , because it prevents complications during pregnancy, which can lead to maternal mortality, and support the birth of healthy children.

Infant mortality is the death of the child at birth or shortly after, while maternal mortality is the death of pregnant women during pregnancy or shortly after delivery.

Therefore, ensuring early and adequate prenatal care is the best factor that must be put in place to address the issue of maternal mortality and infant mortality rate.

4 0

3 years ago

The light-independent reactions of photosynthesis, also known as the Calvin cycle, must repeat six times in order for a cell to

tensa zangetsu [6.8K]

Answer:

Molecules brought in: 3CO2, 9ATP, 6NADPH

Molecules Produced: 1G3P, 9ADP, 6NADP+ +H+

Molecules used and Regenerated: 3RuBP, 5G3P

Explanation:

1. Molecules brought in and utilized in the light-independent reaction or Calvin cycle:

-CO2 from outside the cell

-Molecules take energy from the light-dependent reactions

2. Molecules produced during the light-independent reaction or Calvin cycle that leave the cycle:

-Energy-carrier molecules that have lost some energy\

-3-carbon molecules that store energy

3. Molecules produced in the cytoplasm from the end products of the Calvin cycle:

-Organic molecules such as glucose

Thus, Molecules brought in: 3CO2, 9ATP, 6NADPH

Molecules Produced: 1G3P, 9ADP, 6NADP+ +H+

Molecules used and Regenerated: 3RuBP, 5G3P

7 0

3 years ago

Write your scientific argument about what caused the size of the orange-bellied parrot population to decrease. As you write, rem

marissa [1.9K]

Answer: the reason of why the orange bellied parrots is on the bridge of extinction habitat destruction due to get wood to make house etc. there it could be due to degradation there is almost less than 17 in 2017 of these majestic parrots left and about 310 in cross-breeding in just a few years all of these parrots could be extinct any day these animals could go extinct the orange-bellied parrot is rated as critically endangered on the International Union for Conservation of Nature (IUCN)'s Red List of Endangered species. it isn't a matter of will it goes its when it will go extinct

Explanation: well I have facts that point to this answer

PLEASE CAN I HAVE BAINLEST

7 0

3 years ago