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Oduvanchick [21]
3 years ago
11

Which Organism Appeared On Earth First?

Biology
1 answer:
shepuryov [24]3 years ago
3 0

A is the best answer

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Which of the following correctly describes the appearance of muscle tissue found in the heart? (2 points) Single-nucleus, non-st
muminat

Answer:

The correct option is B.

Explanation:

Muscle tissues of the heart refers to a group of cells that are carrying out similar functions in the heart. There are three different types of muscles, these are skeletal, cardiac and smooth muscles. The cardiac muscles are found in the heart, they form the contractile wall of the heart. These muscle contract involuntarily ( that is, without any external stimulation) and they are single nucleus, striated and short.

3 0
3 years ago
Read 2 more answers
In pea plants, tall plants (T) are dominant to short plants (t). If two heterozygous (Tt) individuals are crossed, what percent
nydimaria [60]

Answer:

1

Explanation:

          T                t

T       TT               Tt

t         Tt                tt

8 0
3 years ago
In order for DNA to replicate, the strand must separate at which of the following locations?
Masja [62]

Answer:

i think its D because the plant cell runs off the sugar cells

Explanation:

4 0
3 years ago
n some organisms, the primary function of a gene in a cell is to participate in regulating the body as a whole rather than respo
STALIN [3.7K]

Answer:

multicellular.

Explanation:

Organisms exhibit various levels of organization of the body. It includes cellular level, tissue level, organ level, organ system level of organization. The unicellular organisms have single cells as their bodies and therefore do not have the genes that regulate the various parts of the body rather than the individual cells. Prokaryotic are unicellular organisms only and do not have multiple cells in their bodies. Therefore, the mentioned genes are the regulatory genes that coordinate the functioning of various parts of the body of a multicellular organism. For instance, the genes involved in regulation of blood glucose levels.

7 0
3 years ago
Read 2 more answers
In a sample of cells, the DNA content immediately following mitosis is measured and is equal to 10 picograms of DNA per nucleus.
Rasek [7]

Answer:

1. At the end of S phase- 20 pg DNA

2. At the end of G2 phase-  20 Pg DNA

Explanation:

The cell before undergoing M phase undergoes the steps of interphase that is G₁, S and G₂ phase.

During S phase, the process of cell replication takes place which replicates the DNA as a result of which the amount of DNA doubles. This DNA amount is reduced to half during the anaphase stage of M phase.

In the question since the amount of DNA is 10pg therefore the amount will be double during S phase and becomes 20 pg and will remain 20 pg until the DNA is distributed therefore at the end of G₂ phase Will remain the 20 pg.

7 0
3 years ago
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