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serious [3.7K]
3 years ago
10

Mammalian evolution began with the evolution of the first synapsids. What is the defining synapomorphy of synapsis?

Biology
1 answer:
Feliz [49]3 years ago
4 0

Answer:

b. a single temporal fenestra

Explanation:

Synapsids have a temporary fossa in the lower part of the temporal bone. These reptiles mamiferoides only have a single inferior temporal fenestra.

The synapsids were the first amniots to diversify and appeared  in the middle of the Carboniferous. These first synapses were characterized by the presence of a single temporary fenestra behind each orbit, through which the mandibular muscles pass.

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​The urethra carries urine outside of the body, and the corpus cavernosum carries sperm outside of the body. true false
Elina [12.6K]

Answer: False

Explanation:

The urethra is a tube which runs from the bladder to the end of the penis. It functions by carrying the urine and semen outside the male body.

Urethra is made of two components. Prostatic urethera is the part that runs from the bladder through the prostrate.

The penis is only organ which carries both the fluids out of the body.

4 0
3 years ago
The sugar industry is on a decline. To boost sales, sugar executives decide to make a new commercial encouraging consumers to ea
kotegsom [21]

Answer:

the macro molecule say that

Explanation:

6 0
2 years ago
balance the following chemical equation making sure to apply the principle of the law of conservation of mass​
Sedaia [141]

Answer:

2Zn+ 4HCl=2ZnCl2 +2H2

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8 0
3 years ago
A rock can be highly permeable but also non-porous. <br> True <br> False
vekshin1
<h3><u>Answer;</u></h3>

The above statement is <u>false</u>

<h3><u>Explanation</u>;</h3>
  • Rocks have different porosity and permeability characteristics, which means that water does not move around the same way in all rocks below ground.
  • Permeability greater than 250 mD are considered very good, while permeability less than 1 mD are considered poor.
  • Low porosity normally results in low permeability, but high porosity does not necessarily imply high permeability. It is possible to have a highly porous rock with little or no interconnections between pores.
8 0
3 years ago
We gain energy from eating plants. Plants create energy. This statement is _____ according to the _____ law of thermodynamics.
aliya0001 [1]

Answer:

false, first

Explanation:

The first law of thermodynamics states that energy cannot be created or destroyed. Plants do not create energy, but rather they harness it from the sun. They convert the light energy in the photons of sunlight into chemical energy in the bonds of carbohydrates they make. We get energy from consuming plants when we acquire and break down these chemical bonds in carbohydrates of plants for our cellular processes.

5 0
2 years ago
Read 2 more answers
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