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Ipatiy [6.2K]
3 years ago
10

What can lead to scientists to change an evolutionary tree?

Biology
1 answer:
sergij07 [2.7K]3 years ago
7 0
New molecular evidence
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6. Endocrine glands ________. a. secrete hormones that travel through a duct to the target organs b. release neurotransmitters i
grandymaker [24]

Answer:

The correct answer is option C. secrete chemical messengers that travel in the bloodstream.

Explanation:

Endocrine glands are organ or gland that secrets hormones that are chemical messengers travel through the bloodstream instead of the duct. There are several glands that are part of the endocrine system such as the thyroid gland, pancreas, hypothalamus, and others.

These chemical agents are the travel through the blood and act on the site of action.

Thus, the correct answer is option C. secrete chemical messengers that travel in the bloodstream.

4 0
3 years ago
How many more oxygen atoms are represented in the formula for barium sulfate than in the formula for barium hydroxide?
kherson [118]

Answer:

I hope this helps and if not I'm truly sorry

Explanation:

2

Percent composition by element

Element Symbol # of Atoms

Barium Ba 1

Hydrogen H 2

Oxygen O 2

3 0
4 years ago
Which change would most likely occur if this rock became buried deep within Earth’s crust and was subjected to intense heat and
vitfil [10]
Does you question have the following choices?

A) The density of the pebbles and sand would decrease.

B) The rock would become a plutonic rock composed mostly of quartz.

C) The rock would become more felsic with a higher concentration of magnesium.

D) The pebbles would become distorted and the sand would be recrystallized.


If so, then the answer is letter D. 

>  The change that would most likely to occur if this rock became buried deep within Earth’s crust and was subjected to intense heat and pressure, but did not melt is: The pebbles would become distorted and the sand would be recrystallized.

7 0
3 years ago
which is used for slective breeding? natureql selection survival of the fittest overproduction or offspring​
AnnyKZ [126]

Answer:

is the process of breeding only organisms with desirable traits

Explanation:

7 0
3 years ago
What is an allele that can have a harmful effect?
dolphi86 [110]

Answer:

option A is correct i hope you like it

5 0
2 years ago
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