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4 years ago

A family has seven sons. The chance that their eighth child will be a daughter is _____.

1 answer:

5 0

The answer for the above question is One chance in two.
One chance in two because the parent can only bare a son or a daughter, therefore getting a daughter would give a probability of half and getting a son would give a probability of a half. These are the only possible outcomes getting a daughter or a son.

You might be interested in

Which symptom is not associated with vitamin b deficiency?

Artyom0805 [142]

There are a lot of different types of vitamin B and all come from different types of foods. One of the symptoms that doesn't appear in any of the different types is an increased appetite.Possible symptoms can be: weakness, irritability, depression, anemia and confusion
Answer: increased appetite

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3 years ago

Plant eaters are called...

Dahasolnce [82]

Answer:

herbivore

Explanation:

An herbivore is an animal or insect that only eats vegetation, such as grasses, fruits, leaves, vegetables, roots and bulbs. Herbivores only eat things that need photosynthesis to live. This excludes insects, spiders, fish and other animals.

5 0

3 years ago

The process of phagocytosis involve all of the following except

evablogger [386]

Hello, I figured your question was missing its options so I went online to find them. Here they are:

The process of phagocytosis involves all of the following EXCEPT :

a. adhesion.

b. secretion of cytotoxins.

c. elimination.

d. vesicle fusion.

e. chemotaxis.

Answer:

The correct answer is: b) secretion of cytotoxins.

Explanation:

Phagocytosis is a mechanism performed by cells in which the plasma membrane engulfs a large particle. Phagocytosis is used by cells in the immune system to ingest pathogens like viruses and bacteria.

Phagocytosis consists of many steps:

activation - the phagocytes that were resting are activated in the inflammatory response when a pathogen enters the body.
chemotaxis - this refers to the process in which the phagocyte moves to the pathogen by following the chemical factors released by these germs.
adhesion - the phagocyte attaches to the pathogen.
ingestion /vesicle fusion - the phagocyte sends pseudopods to engulf the pathogen, and places it in a phagosome, which is an endocytic vesicle. The phagosome and the phagocyte will fuse so the pathogen gets inside.
elimination - the pathogen is destroyed in the phagocyte by the lysosomes present in it.

The secretion of cytotoxins is not a part of the phagocytosis, and is a process exclusive to T cells (leukocytes that lack the ability to phagocyte).

5 0

3 years ago

PLEASE HELP

ivolga24 [154]

Answer:

As one example, think about a building's electrical system. Suppose a mouse chewed through an electrical wire to a furnace. Without electricity, the heating system would not work. If this happened in very cold weather, the plumbing system could be affected. Water pipes might freeze and burst. If a lot of water leaked into the building's walls, its support system would be damaged. Like a building's systems, your body's systems have

Explanation:

You know that your body is made of cells. When groups of cells do the same kind of work, they are called tissues. The word tissue comes from a Latin word meaning to "weave." Cells that make up tissues are sometimes "woven" together.

You have four main types of tissues: epithelial, nervous, muscle, and connective tissue. Epithelial tissue covers the outside of the body. It also lines organs and cavities. Nervous tissue sends electrical signals. Muscle tissue helps you move. Connective tissue joins bones and cushions organs.

When groups of tissues work together, they are called organs. Some

examples of organs are the heart, lungs, skin, and stomach. When organs work together, they are called systems. For example, your heart, lungs, blood, and blood vessels work together. They make up the circulatory system.

There are eleven systems in the human body: muscular system, respiratory system, digestive system, integumentary system (skin), skeletal system, circulatory (or cardiovascular) system, excretory (or urinary) system, reproductive system, nervous system, lymphatic system, and endocrine system. Each system has a special job.

All of your body systems have to work together to keep you healthy. Your bones and muscles work together to support and move your body. Your respiratory system takes in oxygen from the air. It also gets rid of carbon dioxide.

Think of your body as a building. A building has a plumbing system, a heating system, a cooling system, an electrical system, and a support system. If any system in a building breaks down, other systems can be affected.

Explanation:

6 0

3 years ago

Check all statements below that are true

victus00 [196]

Answer:

Statements thar are true:

Some organisms have phenotypes that make them better increase chances of reproduction.

Natural selection continues to occur even today

Phenotypes found In the most successful members of a species become the most prevalent after several generations.

Explanation:

It is not true that all organisms must compete for survival, sometimes the conditions are good and there is enough food or good climate conditions and that makes no need of competition an increase in the individuals of the species.

Animals undergo natural selection, this is a random natural phenomenon that can make plants and animals adapt better or worse to the enviromental conditions. This cause that the beneficiaries can adapt, survive and reproduce and became the most prevalent after generations.

Mutations are not phenomen that occur because the living being needs it, but rather they are phenomenon that occur at random at any time and determine the possibility of survival.

A decrease in food availability will do the contrary, decrease the variation in a population because it makes that only those who manage to adapt to eat another food survive, for example.

7 0

3 years ago

Read 2 more answers