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kramer
3 years ago
7

Your biology instructor says in class that the fossil remains of primates from the Eocene demonstrate that they were nothing lik

e the primates of today. After class, what valid argument do you give that contradicts this?
Biology
1 answer:
MatroZZZ [7]3 years ago
3 0

Answer:

The Eocene Epoche coincides with the form of primates which are placental mammals.

Explanation:

The main characters of placental mammals contain large body,bigger brain that appear at that time from the fossil record.

True primates were evolve in 55 million years ago,at the beginning of eocene epoch.

These fossil records were found in  North America, Europe, Asia.

The fossil were squirrel like size with grasping hand,feet, that helps them for climbling the tree.

The fossil record of primate that were found contain stereoscopic vision.

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What is the difference between circulatory system and types of circulation
Nady [450]

Answer:

The circulatory system, also called the cardiovascular system or the vascular system, is an organ system that permits blood to circulate and transport nutrients (such as amino acids and electrolytes), oxygen, carbon dioxide, hormones, and blood cells to and from the cells in the body to provide nourishment and help in fighting diseases, stabilize temperature and pH, and maintain homeostasis.

There are two main types of circulatory systems: 1. open circulatory systems and closed circulatory systems. Open circulatory systems are systems where internal organs and body tissues are surrounded by circulatory fluid. This fluid is called hemolymph, and it's pretty much like blood, except that it doesn't contain oxygen transporting cells.

2. The closed circulatory system of some mollusks and all vertebrates and higher invertebrates is a much more efficient system. Here blood is pumped through a closed system of arteries, veins, and capillaries. Capillaries surround the organs, making sure that all cells have an equal opportunity for nourishment and removal of their waste products. However, even closed circulatory systems differ as we move further up the evolutionary tree.

5 0
3 years ago
In water snakes, body color is controlled by two alleles that display incomplete dominance. Snakes with the BB genotype are brow
Rainbow [258]

Answer:

Phenotypic ratio= 1 Brown : 1 Gray

Explanation:

Genotype of brown snake= BB

genotype of gray snake= Bb

A cross between brown (BB) and gray (Bb) snake obtains progeny in following phenotypic ratio= 1 Brown : 1 Gray

Here, the heterozygous parent, gray snake (Bb) forms two types of gametes in 1:1 ratio while the homozygous dominant parent, brown snake (BB) forms only one type of gamete.

4 0
3 years ago
Sound travels slower in colder air. why does the speed of sound depend on air temperature?
insens350 [35]
Like you might have studied. Heated hair expands while colder air contracts. So, the sound isn't able to move as efficiently in cold air than it would in warmer air.
3 0
3 years ago
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AleksAgata [21]

Answer:

Find the area of a square or rectangle by multiplying the length times the width. This formula looks like l*w. If the length is 5 and the width is 2, the area is 10 square units.

Explanation:

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3 years ago
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Answer:

    X.     X

x/. Xx     / Xx

--------------------

x/ Xx        / Xx

Explanation:

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3 years ago
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