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MissTica
2 years ago
8

Why is blood bright red​

Biology
1 answer:
yarga [219]2 years ago
7 0

Answer:

Human blood is red because hemoglobin, which is carried in the blood and acts as an oxygen transport agent, is iron-rich and red in colour.

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Why do dolphins kill more people every year than sharks?
Alik [6]

Answer:

Dolphins use their strong snouts as a powerful weapon to ram sharks, targeting their soft underbellies and gills to cause injuries. Sharks pose less of a threat to larger members of the dolphin family. Indeed, orcas are the top predator in the ocean and small sharks are a target for some populations.

8 0
2 years ago
What combines to form rocks<br><br>minerals <br>Crystal's<br>other rocks​
vampirchik [111]

Answer:

A rock is a collection of minerals. In a cooling lava, mineral crystals do not have time to form and are very small. The chemical composition will be the same as if the magma cooled slowly. Existing rocks may be heated enough so that the molecules are released from their structure and can move around.

Explanation:

6 0
2 years ago
Which of the following is/are true?
Softa [21]

Answer: Only Options A, C and E are correct

A) Sympatric speciation is best described as a random event that disrupts the allele frequencies in a population

C) Sympatric speciation does not require geographic isolation.

E) Sympatric speciation can be due to sexual(mate) selection

Explanation:

Sympatric speciation is a random or naturally occurring event whereby organisms of the same species:

> live in the same territory or nearby territories ( i.e not living in isolation)

> DO NOT interbreed, but select a sexual mate from a much diverse territory which results in an uneven gene flow or disruption of alleles among the population of same species of the parents organisms.

3 0
3 years ago
Why do paleontologist study fossils ?
Stells [14]

Answer:

Paleontologists study fossils so that we can understand the evolution's from past species to the current ones. It also opens a window to discovering exactly how long earth has been around by finding out the age of the fossil itself. Though paleontology has been in the decline recently, and i'm sure we haven't found out all we need to know from these fossils.

Explanation:

3 0
2 years ago
Another name for a fertilized egg is a(n) (2 points) zygote. gamete. ova. fetus.
andreyandreev [35.5K]
It's called a zygote
8 0
2 years ago
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