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Grace [21]
3 years ago
7

What component of the circulatory system is at the tissue level? a. blood b. white blood cell c. heart d. hemoglobin

Biology
2 answers:
nata0808 [166]3 years ago
6 0

Answer;

A. Blood

Explanation;

The main organs of the Circulatory system are the heart, the brain, the lungs. There are other key things like arteries, veins, and capillaries but they are not organs.

The major tissues in the circulatory system are the epithelial, muscle, nervous, and connective tissues.

Blood is the main connective tissue in the circulatory system, but it's a liquid connective tissue. Blood tissue is in the same family as bone and cartilage, but instead it has a liquid medium that holds it together.

slamgirl [31]3 years ago
6 0
I belive it is a, because blood is a tissue.
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1- ¿Por qué son importantes las semillas nativas?
motikmotik

Answer:

Spanish:

Las semillas nativas son importantes porque pueden tener un gen que sea importante para la producción del futuro, genes tolerantes a las alturas o genes resistentes a la sequía. Además, son vitales para toda la vida en la Tierra.

English:

Native seeds are important because they may have a gene that is important for future production, height-tolerant genes, or drought-resistant genes. Furthermore, they are vital to all life on Earth.

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3 years ago
Which is an example of a chemical change. A candle burns. A teaspoon of salt dissolves
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Answer:

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Explanation:

Hope it helps

8 0
3 years ago
Read 2 more answers
Record the stages of meiosis in eukaryotic cells realizing that there are two cell divisions involved, each having their particu
Leya [2.2K]
1.1
Meiosis I
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1.2 Meiosis II
The second division: separates sister chromatids (these chromatids may not be identical due to crossing over in prophase I)

     Prophase II: Chromosomes condense, nuclear membrane dissolves, centrosomes move to opposite poles (perpendicular to before)
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    Telophase-II: Chromosomes decondense,cells divides again to form another 2 haploid daughter cells. Final: 4 new cells.


2. The differences:
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4.
 It can't occur. Cross over is the exchange of DNA between homologous chromosomes.  That will result in recombinant chromosomes during sexual reproduction. It can't occur on different chromosomes because they don't code for the same genes.

5. There are a lot of different theories about that, but it's mostly believed that meiosis must evolve before sexual reproduction. That's because The cell replicates their information first and then divides. Plus the cell does that even though it didn't recombine DNA with another organism (sexual reproduction).

3 0
3 years ago
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Butoxors [25]

Answer:

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