how many valence electrons are in the atom pictured below?

Answer:

1. Fossil evidence

2. Homologous similarities.

3. Molecular evidence

Answer:

d of course is this 7th grade?

Answer:

D. chlorophyll

Explanation:

sana nakatulong

Answer:

D. skeletal system .... .

Answer:

Because flu viruses evolve so quickly, last year's vaccine may not protect you from this year's viruses. New flu vaccines are released every year to keep up with rapidly adapting flu viruses.

Answer:

Because the virus/sickness would evolve and that vaccine might not protect you.

Acidity rises and pH falls as carbon dioxide levels rise. The correct option is C.

A change in the characteristics of ocean water known as ocean acidification may be detrimental to plants and animals.

Scientists have noticed that the ocean's acidity is rising as a result of the water's absorption of atmospheric carbon dioxide.

Ocean acidification is the decrease in the ocean's pH level. The average pH of the ocean's surface fell from about 8.25 to 8.14 between 1751 and 2021.

Ocean water is more basic than drinking water because it is resistant to pH fluctuations due to the presence of various weak acids and their corresponding bases, or buffers.

The ocean is regarded as having a pH that is slightly alkaline. Acidity and pH both drop when carbon dioxide levels rise.

Thus, the correct option is C.

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Your question seems incomplete, the missing options are:

When CO2 increases, pH increases and acidity decreases.

When CO2 increases, pH decreases and acidity increases.

When CO2 increases, pH decreases and acidity decreases.

There is no relationship between CO2 and pH

Answer:

Panax ginseng (Chinese or Korean ginseng) has been shown to have similar properties under certain circumstances. McNaughton et al., 1989 noted increases in pectoral strength, quadriceps strength, and post-exercise recovery following dietary supplementation with ginseng root powder.

Explanation:

Answer:

Answer: mitochondrios produce energy from glucose, and c might be wrong dont be mad at me

Explanation:

Answer: mitochondrios produce energy from glucose, also C is right

Answer: A

Explanation:

the joints on the top of your skull is motionless

Answer:

a a a a a a a a a a. a aa aaaaaaaaa a a a

Answer:

I'm not entirely sure, however, since no one has answered your question yet, I'll say A. Mobility

This thing probably moves around, and it doesn't look like it could protect it, or anything.

Answer:

The answer is Mobility.

Explanation:

Took the test.

Answer:

usually once a month

Explanation:

The full moon is the lunar phase when the Moon appears fully illuminated from Earth's perspective. This occurs when Earth is located between the Sun and the Moon (more exactly, when the ecliptic longitudes of the Sun and Moon differ by 180°).

Answer:

75%

Explanation:

Answer:

True

Explanation:

Answer:

The movement of specific substances into and out of the cell is controlled by the cell membrane.

Explanation:

The cell membrane is permeable, so it allows for the passage of substances both into and out of the cell. It is also selective, so only specific substances can enter and exit the cell.

Answer:

Competition, predation, commensalism, mutualism and parasitism.

Explanation:

There are five types of relationships present between organisms such as competition, predation, commensalism, mutualism and parasitism. Competition is a type of interaction between organisms in which both the organisms are harmed. In predation relationship, one organism feed on the other by killing it. commensalism is a relationship in which one is benefited and the other is neither benefited nor harmed. In mutualism relationship, both the organisms or species gets benefit from one another whereas parasitism is a type of relationship in which one organism is benefited and the other is harmed not killed.

Answer:

yes

Explanation:

Answer:

0.00004524 minute

Explanation:

The enzyme is Catalase, and it speeds up the rate of reaction by 700 times than what it was supposed to be.

If the already sped up rate of reaction is 1.9 seconds, then the initial reaction ought to have taken

1.9/700 seconds and that is 0.0027143 second.

We're asked to convert to minute, we then have

0.0027143/60 which is equal to 0.0000452381 minute.

Since we're asked to round off to 4 significant figure, we have 0.00004524 minute.

Answer:

The first one

Explanation:

A thesis is a statement or theory not a question.

Answer:

False

Explanation:

A niche is making a living as a top carnivore.

Answer:

To know which exact organism you are referring to, and there is no confusion about it.

Explanation:

To identify organisms, we usually use two names. The common name and the scientific one.

Scientific name: binomial nomenclature.

The scientific name designates a species through binomial nomenclature. The binomial nomenclature is a standard agreement used to identify different organisms. It has international validity, and it does not change among regions or languages. One binomial name is used only on one organism and can not repeat.  It is composed of two Latin words: gender and the specific name. Many species might share the same gender for being very similar, so the specific name is used to identify each species.

Common names:

These are informal names, determined by the people of a region or area, that speak the same language. They are regional names, so they change from region to region, even when referring to the same organism. Usually, these names designate only organisms that have importance for the people. The same name might refer to different organisms, and in many cases, the same organism might receive many names. For this reason, there might be confusion when using only common names to talk about a species.

If we need to refer to a particular organism, we should always use the scientific name to avoid confusion. As it is internationally recognized and accepted, anybody can know which species you are talking about, independently of the region or the language. In most cases, people mention a species using the scientific name together with many of its common names.    

Answer: the main function is to control what goes in and out of the cell. It is made of a double layer of lipids (fats) imbedded with odd-looking protein molecules. Because it is a fat, only some things that are very tiny, like water and oxygen pass through this part.

Explanation:

Answer:

it must have come from somewhere else.

Explanation:

I did it on studyisland

Answer:

Veins

Explanation:

Blood moves through many tubes called arteries and veins, which together are called blood vessels. The blood vessels that carry blood away from the heart are called arteries. The ones that carry blood back to the heart are called veins.

Answer:

The concentration of glucose must be maintained within a fairly narrow range in most vertebrates. This statement is an example of — d. homeostasis.

Answer:

D

Explanation:

All of the above options are important products of rainforests. Therefore, option (D) is correct.

Timber, or wood, is a valuable natural resource obtained from rainforests and is used for various purposes, including construction, furniture, and paper production.

Pharmaceutical products, or drugs, are derived from rainforest plants and have contributed to the development of many life-saving medicines. Oxygen is produced by rainforest vegetation through photosynthesis and is a crucial component of the Earth's atmosphere, supporting life for all organisms.

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Answer:

The Decline of the black panther started to decline due to habitat loss and human activity like hunting.

Explanation: