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Strike441 [17]
3 years ago
11

How many marsupial mammals are there?

Biology
1 answer:
nydimaria [60]3 years ago
6 0
There is about 334 different spiecies of marsupials in the world.
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F a cell with a very low concentration of oxygen (O2) were to be placed in an environment that has a very high concentration of
vovikov84 [41]

Answer:

the oxygen from the environment will flow into the cell

Explanation:

because by diffusion, areas of high concentration flow to low concentration :)

7 0
3 years ago
Phenotypes:
KatRina [158]

Answer:

A: can be subject to environmental conditions.

Explanation:

Phenotype is a genetics term used to describe an individual's observable characteristics that result from interactions with the genotype and nonheritable environmental factors.

Phenotypes are the <u>manifested</u> <u>aspects</u> of the morphology, physiology, biochemical properties, behavior and ecological relationships of an organism.

Given these statements, it can be concluded that two organisms cannot have the same phenotype (not even twins), because there will always be, however small, a morphological or physiological difference between them.

8 0
3 years ago
Nucleic acids offer variability because they contain alternate forms of genes called .
ycow [4]

Hello, I believe your answer should be alleles.

Alleles are alterenate forms of genes.

7 0
3 years ago
Describe the famous experiment related to gravity that Galileo may have preformed. Include the results. Also, state whether the
leva [86]
Galileo preformed a famous experiment where he used a ball rolling on a ramp (inclined plane) to study the motion of objects under the influence of gravity. The ramp allowed him to make more precise measurements because the ball moved more slowly along the ramp than if it were simply dropped. Galileo discovered through this experiment that the objects fell with the same acceleration, proving his prediction true, while at the same time disproving Aristotle's theory of gravity (which states that objects fall at speed proportional to their mass). Galileo's conclusion from this thought experiment was that no force is needed to keep an object moving with constant velocity. Newton took this as his first law of motion. One result of the experiment surprised Galileo, and one surprises us. Galileo found that the heavy ball hit the ground first, but only by a little bit. Except for a small difference caused by air resistance, both balls reached nearly the same speed. And that surprised him.

According to history, Galileo’s experiment on falling bodies largely contributed to Isaac Newton’s Law of Gravity. In Galileo’s experiment, he is said to have dropped balls from the Leaning Tower of Pisa. The balls were made of the same material but had different masses. Galileo set out to prove that the time it took for these objects to reach the ground would be the same. Galileo proved that objects reached the ground at the same time,
7 0
3 years ago
The __________ division carries signals to the smooth muscle in the large intestine.
ololo11 [35]

Answer:

Visceral motor

Explanation:

Peripheral nervous system is divided further into visceral and somatic nervous system. Somatic nervous system controls the skeletal muscles, joints and tendons. Visceral nervous system controls cardiac muscles, glands and smooth muscles.

Large intestine has smooth muscles so it is controlled by the visceral nervous system. It has further two divisions, sensory and motor. Sensory division carries signals from the muscle to the central nervous system whereas motor division carries signals from the central nervous system to the muscle which cause an action. Hence, visceral motor division carries signals to the smooth muscle in the large intestine.

8 0
3 years ago
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