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maria [59]
4 years ago
9

What are differences between sperm and egg?

Biology
1 answer:
Firlakuza [10]4 years ago
5 0
Sperm cells come from the male
egg cells come from the female
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What are the causes of wildfires?
Ganezh [65]

Answer:

Humans and Wildfire

Human-caused fires result from campfires left unattended, the burning of debris, equipment use and malfunctions, negligently discarded cigarettes, and intentional acts of arson. Lightning is one of the two natural causes of fires.

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Explanation:

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3 years ago
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Which phylum includes animals that lack tissues?
nikklg [1K]

The correct answer is arthropoda.

Phylum arthropoda includes animal which lack tissues. Arthropoda is termed as a proposed grouping of arthropods.

They are being characterized by their cuticle and jointed limbs which are made of chitin. Their brains are formed by fusion of ganglia and their brains are formed of fusion of different number of segments.

Arthropods contribute to supply of food in human either indirectly or directly as pollinators of crops.

3 0
3 years ago
PLEASE HELP. I REALLY NEED THIS!!!!
Viefleur [7K]

Answer:

In nature, populations are usually evolving. The grass in an open meadow, the wolves in a forest, and even the bacteria in a person's body are all natural populations. And all of these populations are likely to be evolving for at least some of their genes. Evolution is happening right here, right now!

To be clear, that doesn't mean these populations are marching towards some final state of perfection. All evolution means is that a population is changing in its genetic makeup over generations. And the changes may be subtle—for instance, in a wolf population, there might be a shift in the frequency of a gene variant for black rather than gray fur. Sometimes, this type of change is due to natural selection. Other times, it comes from migration of new organisms into the population, or from random events—the evolutionary "luck of the draw."

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4 0
3 years ago
How does the weather caused by a warm front compare to the weather caused by a cold front? A warm front brings fog, but a cold f
enot [183]

Answer:

The weather caused by a warm from and a cold front compare by:

A warm front brings rain in humid air on occasion, but a cold front brings thunderstorms in summer.

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A warm front is a phenomenon in which a warm air mass replaces a cold air mass, creating fog and rain on one occasion. While the cold front is the replacement of a warm air mass by a cold air mass changing the pressure and creating a thunderstorm in the middle of summer. The warm front happens in zones close to the equator and the cold fronts happen in almost every place.

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Which of these is a heavy element in a star?
vlada-n [284]

Answer:

hydrogen and helium among other elements these are the heaviest element found in the Star .

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