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Artemon [7]
3 years ago
9

Which two structures are found ONLY in plant cells?

Biology
1 answer:
Naya [18.7K]3 years ago
5 0


The best answer is  C.

Plant cells are surrounded by a cell wall and have chloroplasts whereas animal cell do not.

The cell wall is  a covering that is rigid whose main purpose is to protect the cell and give structural support as well shape to the plant cell. The equivalent of a cell wall in animal cell is the cell membrane, which has distinct differences from the plant  cell wall.

Chloroplasts are plant  cell organelles which carry out photosynthesis by which plants make their own food. These are absent from animal cells because animals do not make their own food, they ingest it from external sources.



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Explain 3 factors that contribute to the abuse of alcohol, tobacco and other drug abuse.
Softa [21]

Answer: Family, Social and Neglect

Explanation:

Family Risk Factors: Family risk factors include childhood maltreatment in which the parent child relationship, marital status of parents, level of understanding among the family members also influences the abuse of alcohol and drug abuse.

Social Risk Factors: The society in which the person or child is living also influences the drug, tobacco and alcohol abuse. A teenage easily gets influenced by the society and place where they are living.

Neglect: If a person feels neglected emotionally by the partners or parents then there is an increased chance of alcohol or drug abuse. If the important necessities of life such as education, clothes, food is fulfilled by the guardians then also there are  chances that a person might get towards alcohol and drug abuse.

8 0
2 years ago
_____ communicate information in the opposite direction, from the brain and nervous system to muscles and glands.
yulyashka [42]

Answer:

The correct answer would be efferent neurons.

Efferent neurons are the motor neurons which communicate information in the opposite direction as compared to the afferent neurons, that is, they communicate information or response impulses from the brain or central nervous system to the muscles or glands.

The response impulses results in the movement of the muscles or activation/deactivation of certain gland

In contrast, afferent neurons are the sensory neurons which carry impulses from the receptors to the central nervous system.

5 0
3 years ago
suggest and explain how the flow of blood in a person with patent ductus arteriosus differs from that of a person with a healthy
iren2701 [21]
Ductus Arteriosus is a blood vessel normally present in fetuses during development. The blood vessel is designed to bypass the pulmonary artery and brings blood to the Descending Aorta, as the fetus cannot breath through the lung (being as they are fluid filled). This is normally not a problem because oxygenated blood comes from the mother's blood supply.

Patent Ductus Arteriosus, is what happens when that vessel does not close. While not as dangerous as other congenital defects. However, because there is still a bypass, blood that normally need to be oxygenated by going through the pulmonary arteries to the lungs, can be diverted and placed into the blood stream without vital oxygen. This condition may eventually lead to CHF (congestive Heart Failure) and Pulmonary Hypertension if not treated.
6 0
2 years ago
What is the nutrient that helps fulfill a human
bija089 [108]

Answer:

Vitamins, minerals, protein, fats, and more.

Explanation:

7 0
2 years ago
Read 2 more answers
A sample of marble has a volume of 6cm3 and a density of 2.76g/cm3 what is it mass
marissa [1.9K]

To solve for the mass of a substance is to simply get the

product of volume and density, that is:


mass = density * volume


 


So calculating for mass:


mass = (2.76 g / cm^3) * 6 cm^3


mass = 16.56 g


Read more on Brainly.com - brainly.com/question/4836999#readmore

7 0
2 years ago
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