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djverab [1.8K]
3 years ago
12

PLEASE HURRY

Biology
2 answers:
Luda [366]3 years ago
6 0

Answer:

Venus should be b

good luck

Explanation

the order is Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune

Degger [83]3 years ago
3 0

Answer:

BBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBBbbBBB

Explanation:

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Which of the following best describes cell communication processes that are present in bacteria, yeast, and multicellular organi
Savatey [412]

Answer:

They release chemical messengers to communicate with cells they may or may not be in direct contact with.

Explanation:

Unicellular organisms such as bacteria or yeast, 'talk' to each other through the release of chemicals. In bacteria, this is known as quorum sensing which allows them to determine the surrounding bacterial population density. In yeast, one of the more popular pathways is known as the mating factor pathway, which allow the organisms to find mates. Whereas, in multicellular organisms (such as humans), this chemical release allows for cell-cell co-ordination which keeps the system functioning correctly.

5 0
3 years ago
In the first step of spermatogenesis, spermatogonia differentiate cells into
mojhsa [17]

Answer:

B. Primary spermatocytes

Explanation:

The germ cell line is a group of cells found inside the seminiferous tubules. This germ cells undergo mitosis (creating spermatogonia) to have a steady supply of cells that will divide by meiosis to produce gametes. When spermatogonia divide by meiosis at the end of meiosis I the newly created cells are known as primary spermatocytes.

8 0
3 years ago
An organism's allele combination is called the
jeka57 [31]

Answer:

phenotype

Explanation:

Within an individual organism, the specific combination of alleles for a gene is known as the genotype of the organism, and (as mentioned above) the physical trait associated with that genotype is called the phenotype of the organism.

8 0
2 years ago
When does DNA replication happen?
Alex787 [66]

Answer:

S phase of the cell cycle

Explanation:

During Mitosis, DNA is replicated during the S phase (Synthesis phase) of Interphase.

7 0
3 years ago
Choose all the answers that apply. Nitrogen dioxide: is a waste product of photosynthesis is formed when fuel is burned at high
GaryK [48]

The correct answers is:

is formed when fuel is burned at high temperatures

<em>Nitrogen dioxide is another toxic gas that forms when fuels are burned at high temperatures.</em>

is the most abundant gas in the atmosphere

<em>The most abundant gas is nitrogen. Over 78 percent of the air we breathe is nitrogen (N)</em>

can cause acid rain

<em>Both nitrogen dioxide and sulfur dioxide can cause acid rain. The damage done by acid rain is devastating to the plants and animals in an ecosystem.</em>

is a major pollutant in the air

<em>AQI measures five major pollutants, including carbon monoxide, nitrogen dioxide (NO2), and sulfur dioxide (SO2).</em>

Wrong answers:

is a waste product of photosynthesis

<em>The waste product of photosynthesis is oxygen.</em>

7 0
3 years ago
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